uwsh manual chapter 6 - submarine sonar systems · pdf filechapter 6 submarine sonar systems...

CHAPTER 6SUBMARINE SONAR SYSTEMS

S0600-AA-PRO-060

1 JUNE 1996Change 1 dated 15 AUGUST 1999

UNDERWATER SHIP HUSBANDRY MANUAL

0910-LP-412-0500 REVISION 1

Published by direction of Commander, Naval Sea Systems Command

This manual supersedes S600-AA-PRO-060 dated 15 April 1991.

DISTRIBUTION STATEMENT C: Distribution authorized to U.S. Government agencies and their contractors;

administrative/operational use, 1 June 1996. Other requests for this document shall be referred to the Naval

Sea Systems Command (SEA 09T).

DESTRUCTION NOTICE: Destroy by any method that will prevent disclosure of contents or

reconstruction of the document.

S0600-AA-PRO-060

A Change 1

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LIST OF EFFECTIVE PAGES

* 0 in this column indicates an original page.

Date of original pages is: 1 June 1996Date of Change 1 is: 15 August 1999

RECORD OF CHANGESACN/FORMAL

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1 8-15-99 Chain Hoist Caution

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TABLE OF CONTENTS

Paragraph Page

SECTION 1 SUBMARINE SONAR SYSTEMS

6-1.1 PURPOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6-1.3 SCOPE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6-1.5 APPLICABILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

SECTION 2 FAULT ISOLATION AND REPLACEMENT PROCEDURES FOR THE AN/BQN-3J (TR143) TRANSDUCER/TRANSDUCER CABLE ASSEMBLY IN TRIDENT I C4 SUBMARINES

6-2.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

6-2.4 RECORDING RESULTS OF TESTS AND INSPECTIONS . . . . . . . . . . . . . . . . 6-2

6-2.7 REFERENCE DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

6-2.9 DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

6-2.10 TECHNICAL MANUALS AND HANDBOOKS . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

6-2.11 SAFETY REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

6-2.12 EQUIPMENT AND MATERIAL REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . 6-4

6-2.13 SUPPORT AND TEST EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

6-2.14 MATERIALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

6-2.15 PRELIMINARY PROCEDURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

6-2.20 PROCEDURAL STEP 1: FAULT ISOLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

6-2.30 PROCEDURAL STEP 2: FURTHER FAULT ISOLATION . . . . . . . . . . . . . . . . 6-11

6-2.71 PROCEDURAL STEP 3: REPLACEMENT OF THE TRANSDUCER CABLE ASSEMBLY IN A DRY TRANSDUCER CAVITY. . . . . . . . . . . . . . . . . 6-18

6-2.109 PROCEDURAL STEP 4: REMOVAL OF A TRANSDUCER IN A DRY TRANSDUCERCAVITY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

6-2.124 PROCEDURAL STEP 5: REPLACEMENT OF A TRANSDUCER AND TRANSDUCER CABLE ASSEMBLY IN A DRY TRANSDUCER CAVITY. . . . 6-27

6-2.170 PROCEDURAL STEP 6: REMOVAL AND REPLACEMENT OF A TRANSDUCER AND TRANSDUCER CABLE ASSEMBLY FROM A FLOODED TRANSDUCER CAVITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32

6-2.240 PROCEDURAL STEP 7: CONFIGURATION RESTORATION . . . . . . . . . . . . 6-37

SECTION 3 FAULT ISOLATION AND REPLACEMENT PROCEDURES FOR THE AN/BQN-25 (TR143) TRANSDUCER/TRANSDUCER CABLE ASSEMBLY IN TRIDENT II D5 SUBMARINES

6-3.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47

6-3.4 RECORDING RESULTS OF TESTS AND INSPECTIONS . . . . . . . . . . . . . . . 6-47

6-3.7 REFERENCE DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47

6-3.9 DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47

6-3.10 TECHNICAL MANUALS AND HANDBOOKS . . . . . . . . . . . . . . . . . . . . . . . . . 6-47

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6-3.11 SAFETY REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-49

6-3.12 EQUIPMENT AND MATERIAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . 6-49

6-3.13 SUPPORT AND TEST EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-49

6-3.14 MATERIALS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-50

6-3.15 PRELIMINARY PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-50

6-3.19 PROCEDURAL STEP 1: FAULT ISOLATION . . . . . . . . . . . . . . . . . . . . . . . . . 6-50

6-3.29 PROCEDURAL STEP 2: FURTHER FAULT ISOLATION . . . . . . . . . . . . . . . . 6-55

6-3.41 PROCEDURAL STEP 3: REMOVAL AND RELACEMENT OF A TRANSDUCER AND TRANSDUCER CABLE ASSEMBLY . . . . . . . . . . 6-59

6-3.111 PROCEDURAL STEP 4: CONFIGURATION RESTORATION . . . . . . . . . . . . 6-71

SECTION 4 FAULT ISOLATION AND REPLACEMENT PROCEDURES FOR THE AB/BQN-25 (TR143) HYDROPHONE/HYDROPHONE CABLE ASSEMBLY AND MOUNTING INSERT IN TRIDENT II D5 SUBMARINES

6-4.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-80

6-4.4 RECORDING RESULTS OF TESTS AND INSPECTIONS . . . . . . . . . . . . . . . 6-80

6-4.7 REFERENCE DOCUMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-80

6-4.9 DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-80

6-4.10 TECHNICAL MANUALS AND HANDBOOKS . . . . . . . . . . . . . . . . . . . . . . . . . 6-80

6-4.11 SAFETY REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-82

6-4.12 EQUIPMENT AND MATERIAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . 6-82

6-4.13 SUPPORT AND TEST EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-82

6-4.14 MATERIALS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-83

6-4.15 PRELIMINARY PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-83

6-4.17 PROCEDURAL STEP 1: FAULT ISOLATION . . . . . . . . . . . . . . . . . . . . . . . . . 6-83

6-4.24 PROCEDURAL STEP 2: HYDROPHONE REMOVAL . . . . . . . . . . . . . . . . . . 6-83

6-4.44 PROCEDURAL STEP 3 HYDROPHONE MOUNTING INSERT INSPECTION AND REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . 6-96

6-4.48 PROCEDURAL STEP 4 HYDROPHONE/HYDROPHONE CABLE FAILURE ISOLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-96

6-4.54 PROCEDURAL STEP 5 HYDROPHONE AND CABLE ASSEMBLY REINSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-96

SECTION 5 FAULT ISOLATION AND REPLACEMENT PROCEDURES FOR THE AN/BQN-25 THERMISTOR IN TRIDENT II D5 SUBMARINES

6-5.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-106

6-5.4 RECORDING RESULTS OF TESTS AND INSPECTIONS . . . . . . . . . . . . . . 6-106

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6-5.7 REFERENCE DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-106

6-5.9 DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-106

6-5.10 TECHNICAL MANUALS AND HANDBOOKS . . . . . . . . . . . . . . . . . . . . . . . . 6-106

6-5.11 SAFETY REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-107

6-5.12 EQUIPMENT AND MATERIAL REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . 6-107

6-5.13 SUPPORT AND TEST EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-107

6-5.14 MATERIALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-107

6-5.15 PRELIMINARY PROCEDURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-107

6-5.17 PROCEDURAL STEP 1: FAULT ISOLATION . . . . . . . . . . . . . . . . . . . . . . . . 6-110

6-5.25 PROCEDURAL STEP 2: THERMISTOR AND CABLEASSEMBLY REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-111

6-5.39 PROCEDURAL STEP 3: THERMISTOR AND CABLE ASSEMBLY REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-112

APPENDIX A NSS: HYDROPHONE INSERT REMOVAL TOOL

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THIS PAGE LEFT BLANK INTENTIONALLY

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LIST OF ILLUSTRATIONS

Figure Page

6-1 Flow Diagram of BQN-3 Transducer Fault Isolation and Replacement . . . . . . . . . . . . . 6-3

6-2 AN/BQN-3J Transducer/Transducer Cable Assembly Components . . . . . . . . . . . . . . 6-10

6-3 Connection of Transducer Cable Assembly Hull Connector to Hull Penetrator . . . . . . 6-12

6-4 Transducer Hull Window Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

6-5 Connection of Transducer Cable Assembly Transducer Connector to Transducer Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

6-6 Transducer Lifting Device Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

6-7 Chain Hoist Rigged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23

6-8 Transducer Retaining Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

6-9 Diver Operating Chain Hoist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

6-10 Yard and Stay Rig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

6-10A Typical Running Block Flip (one or two part chain reeve) . . . . . . . . . . . . . . . . . . . . . . 6-22

6-11 Transducer Protective Face Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28

6-12 Cable Coiled on Handling Fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30

6-13 Transducer Cable Assembly Transducer Receptacle Test Point Identification . . . . . . 6-41

6-14 Flow Diagram of TR143 Transducer Fault Isolation and Replacement . . . . . . . . . . . . 6-48

6-15 BQN-25/TR143 Transducer Cable Assembly Components . . . . . . . . . . . . . . . . . . . . . 6-51

6-16 Connection of TR143 Transducer Cable Assembly Hull Connector to Hull Penetrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-56

6-17 Transducer Hull Acoustic Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-58

6-18 Transducer Lifting Device Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-60

6-19 Chain Hoist Rigged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-61

6-20 TR-143 Transducer Retaining Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-62

6-20A Typical Running Block Flip (one or two part chain reeve) . . . . . . . . . . . . . . . . . . . . . . 6-60

6-21 Diver Operating Chain Hoist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-64

6-22 Yard and Stay Rig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-65

6-23 TR143 Transducer Protective Face Plate Installation . . . . . . . . . . . . . . . . . . . . . . . . . 6-66

6-24 Connection of Transducer Cable Assembly Transducer Connector to Transducer Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-67

6-25 Cable Coiled on Transducer Lifting Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-72

6-26 Transducer Cable Assembly Connector Test Point Identification . . . . . . . . . . . . . . . . 6-75

6-27 NSS Acoustic Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-81

6-28 Sonar External Hull Fitting (EHF) Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-88

6-29 NSS Conduit Locations Sonar Penetrator Cavity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-89

6-30 NSS Interconnection Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-90

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LIST OF ILLUSTRATIONS

Figure Page

6-31 NSS Acoustic Window Mounting Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92

6-32 NSS Window Lanyards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-93

6-33 Hydrophone Arrangement (Looking Up) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94

6-34 Hydrophone/Cable Test Point Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-102

6-39 Thermistor/Cable Test Point Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-120

6-40 O-Ring Removal Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-122

LIST OF TABLES

Table Page

6-1 List of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-66-2 List of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-526-3 List of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-846-4 List of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-108

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SAFETY SUMMARY

GENERAL SAFETY PRECAUTIONS. Thefollowing general safety precautions supple-ment the specific warnings and cautionsthroughout this chapter. These general pre-cautions are related to isolating faults in sub-marine sonar systems, and removing andreplacing them, if necessary. They are precau-tions that must be understood and appliedbefore and during work on submarine sonarsystems. In addition to the following precau-tions, personnel must be familiar with andobserve safety precautions set forth in the fol-lowing publications:

a. Navy Safety Precautions for ForcesAfloat-OPNAV 5100 series

b. Naval Ships’ Technical Manual(NSTM)

c. Technical/operating manuals for equip-ment

d. U.S. Navy Diving Manual, Volume 1,NAVSEA 0944-LP-001-9010

Do Not Repair or Adjust Alone.

Do not repair or adjust energized equipmentalone. The presence of a qualified individualcapable of rendering aid is required. Alwaysprotect against grounding hazards and makeadjustments with one hand free and clear ofequipment. Be aware that even after equip-ment has been deenergized, dangerous elec-trical hazards can exist due to capacitorsretaining electrical charges. Circuits must begrounded and capacitors discharged.

Test Equipment.

Make certain electrical test equipment is ingood condition and personnel are familiar withits safe operation. Hand-held test equipmentmust be grounded, if possible, to preventshock injury. Since some types of equipment

cannot be grounded, avoid holding them toprevent injury.

Equipment in Motion.

Remain clear of equipment in motion. A safetywatch will be posted if equipment requiresadjustment while in motion. The safety watchshall have a full view of operations and imme-diate access to controls which are capable ofstopping equipment. If at any time the sonarsystem appears to be moving out of control,stop equipment immediately.

Limit Switches and Interlocks.

Limit switches and interlocks are provided toprotect personnel and equipment. Theyshould not be overridden or modified exceptby an authorized person. Do not dependsolely upon limit switches for protection. Dis-connect power at the power distributionsource before adjusting limit switches if possi-ble.

First Aid.

Attend to all injuries, however slight, by obtain-ing first aid or medical attention immediately.

Resuscitation.

Personnel working with or near high voltageshall be familiar with approved resuscitationmethods. Begin resuscitation immediately ifsomeone is injured and stops breathing. Adelay could cost the victim's life. Resuscitationprocedures shall be posted where electricalhazards exist.

Minimizing Relative Motion.

Relative motion is the movement of two ormore objects in relation to each other. Thisposes unique hazards to divers. A commonexample is a nest of ships swaying and bounc-ing against each other due to wind and wave

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action. This motion would easily crush a divercaught between the two ships. To reduce thehazards of relative motion and to simplify thetask, suspend the work platform and riggingfrom fittings on the ship.

WARNINGS AND CAUTIONS. Spec i f i cwarnings and cautions appearing in this chap-ter are summarized below for emphasis andreview. All page numbers where each warningor caution appears are given in parenthesesfollowing the warning or caution.

Entry into the transducer cavityis not possible with SCUBAtanks, surface supplied airmust be utilized (page 6-15).

Do not attempt to rig the trans-ducer using existing eye-bolts.Eyebolts supplied with trans-ducer may fail during handling.Use only item 16, table 6-1(pages 6-21, 6-28, 6-32, 6-34,and 6-68).

Uncontrolled movement of the600-pound transducer mayresult in serious personal injuryor property damage. Do notloosen the transducer retainingbolts more than four turns untilit can be verified that the trans-ducer is totally supported bythe chain hoist (pages 6-21A,6-32, and 6-59A).

Uncontrolled movement of the600-pound transducer canresult in serious personal injuryor property damage. Ensurethat divers and divers' umbili-cals are clear of the transducercavity and the transducer cavityedges while handling the trans-ducer (pages 6-21A, 6-29,6-32, 6-35, 6-59A, and 6-69).

Do not attempt to rig the trans-ducer using existing eyebolts.Eyebolts supplied with thetransducer may fail during han-dling. Use only item 14, Table6-2 (page 6-69).

Damage to the O-ring or gasketmating surfaces may causeimproper seating and permitleakage. Use extreme care toprevent damage to these sur-faces while installing the O-ringand gasket (pages 6-11, 6-18,and 6-55).

A nylon lanyard is attached to apadeye inside the cavity and toa padeye on the transducer hullwindow to prevent loss of thewindow during removal. Ensurethat the lanyard is in place andsecurely attached beforereleasing the window (pages6-13, and 6-57).

Acute bend radii in the cablecan cause excessive stressand possible damage to thecable insulation. Maintain aminimum bend radius of 4inches while pulling the cable(pages 6-15, 6-17, 6-18, 6-19,6-31, 6-36, 6-70, and 6-95).

If water contacts the electricalsystem components, the sys-tem can short out. Ensure thatconnector do not get wet(pages 6-15, and 6-18).

Damage to the O-ring seatingsurfaces may cause improperseating and permit leakage.Use extreme care to preventdamage to these surfaces

WARNINGS

CAUTIONS

viii Change 1

S0600-AA-PRO-060

while installing the O-rings(pages 6-15, 6-17, 6-33, and6-68).

Inadvertent flooding of theunattended cavity can causeserious damage if the trans-ducer connector is unprotected.Ensure that the O-rings andtransducer connector cap areproperly installed on the trans-ducer connector before leavingthe cavity (page 6-17).

Chain twist in the working chainloops of manual chain hoistsand chain falls will cause chainfailure. Chain twist in the work-ing chain loop occurs when thechain has an improper reevethrough the chain sprocketsOR (more often) the runningblock has flipped up andthrough any of the chain loops(see figures 6-10A and 6-20A)

All chain hoists and chain fallsissued with NAVSEA SUP-SALV Underwater Ship Hus-bandry equipment kits havebeen checked for chain twistand the chain hoist/fall hasbeen loosely two-blocked sothat the running block can notflip over into the working chainloops during shipment.

OPERATORS must ensurethat the running block is notflipped over into the chain loopscreating chain twist whiledeploying and rigging the chainhoists/falls.

To check for chain twist in thechain loop:

Hang the hoist from the tophook in a safe, accessible loca-tion. Tighten the hoist until lessthen one foot of separationexists between the hoist body

and the running block. Theshort throw allows for mucheasier visual detection of twistin the individual chain reeves.Confirm that none of the chainlengths running from the work-ing chain sprocket to the run-ning chain sprocket (chainreeves) have any twist causedby the running block beingflipped over and through theloop of the chain. If ANY chaintwist is detected, flip the run-ning block back through thechain loop until the twist isremoved. If ANY twist can notbe removed by flipping the run-ning block, the hoist chainMUST be removed from thehoist body and re-reeve exer-cising care not to twist thechain during installation (pages6-21, 6-29, 6-32, 6-59, and 6-69).

Crushing or pinching the trans-ducer cable will damage thecable. Ensure that the cablecoiled on top of the transducerdoes not become crushed orpinched between the trans-ducer and the transducer foun-dation (pages 6-29, 6-35, and6-69).

Fig. 6-10A & 6-20A Typical Running Block Flip (one or two part chain reeve)

Change 1 ix

S0600-AA-PRO-060

Use of 1/2-inch-13 UNC x 21/2-inch capscrews to pull thewindow into place will result indamage to the plastic ring inthe window assembly. Use the1/2-inch-13 UNC x 6-inch studs(item 15, table 6-1) to preventdamage (page 6-37).

Use of 5/8-inch-11 UNC x 21/4-inch capscrews to pull thewindow into place will result indamage to the window. Use the5/8-inch-11 UNC x 6-inch studs(item 13 table 6-2) to preventdamage (page 6-71).

Ensure inboard cable is discon-nected from preamp prior toaccomplishing paragraph6-4.23 (page 6-82).

To avoid rounding of screwsocket head, ensure that hexsocket is fully seated in screwhead (page 6-90).

Do not use hydraulic impactwrench to remove windowmounting screws (page 6-90).

Prior to window removal verifylanyards are in good condition(page 6-90).

When divers are directly under-neath or in the NSS seachest,air bubbles force water upvents and conduits in sonarpenetrator cavity. Ensure hullpenetrators remain covered atall times to preclude moisturefrom entering hull penetrator(page 6-90).

Do not allow Termalene greaseor any foreign substance tocontact hydrophone and/ortransducer faces (page 6-94).

Ensure wrench is fully seated inscrew to preclude rounding ofthe socket on the hydrophone

mounting screws (page 6-94).

Hydrophone weighs 70 lbs (inair) (page 6-94).

During all torquing operations,ensure hex socket is fullyseated in screw socket to avoidrounding of socket head (6-96).

If the thermistor/cable assem-bly requires replacement, it isnecessary to disconnect boththermistor cables and removethem together to preclude dam-age to the cables (page 6-110).

Use of 5/8-inch 11 UNC x 21/4-inch capscrews to pull thewindow into place will result indamage to the window. Usethe 5/2-inch 13 UNC x 6-inchstuds (item 7, table 6-4) to pre-vent damage (page 6-112).

x Change 1

S0600-AA-PRO-060

CHAPTER 6SUBMARINE SONAR SYSTEMS

SECTION 1 INTRODUCTION

6-1.1 PURPOSE

6-1.2 The purpose of this chapter is to pro-vide divers and other repair activity personnelwith technical information and NAVSEA-approved procedures for waterborne inspec-tion, fault isolation, repair and replacement ofSubmarine Sonar Systems. Implementation ofand adherence to these procedures willensure that the most stringent quality controlrequirements are satisfied before, during andafter underwater work on Submarine SonarSystems.

6-1.3 SCOPE

6-1.4 This chapter covers only those tasksthat can be performed on submarines whilethey are waterborne. The information and pro-

cedures contained in this chapter are notintended to duplicate or supersede informationcontained in Submarine Sonar System techni-cal manuals, the U.S. Navy Diving Manual orthe Naval Ships’ Technical Manual.

6-1.5 APPLICABILITY

6-1.6 This chapter combines information fromvarious sources to provide repair activity per-sonnel with a single document that can beused to plan and conduct underwater shiphusbandry on Submarine Sonar Systems. Theprocedures described are those proceduresnecessary for divers, working in conjunctionwith qualified technical repair personnel, tosafely and efficiently conduct the necessaryinspections, tests and repairs to return a Sub-marine Sonar System to operating condition.

6-1

S0600-AA-PRO-060

SECTION 2FAULT ISOLATION AND REPLACEMENT PROCEDURES FOR THE

AN/BQN-3J (TR143) TRANSDUCER/TRANSDUCER CABLE ASSEMBLY IN TRIDENT I C4 SUBMARINES

6-2.1 GENERAL

6-2.2 This section provides detailed proce-dures that direct divers and other repair per-sonnel through the proper sequence of eventsto identify and isolate electrical faults in theAN/BQN-3J (TR-143) transducer/transducercable assembly (TCA) and to repair or replacethe assembly as necessary to restore the sys-tem to operating condition. Figure 6-1 is a flowdiagram of the procedures.

6-2.3 The successful completion of these pro-cedures requires close coordination betweenthese activities: lead work center (LWC), rig-gers (RIG), divers (DV) and ship’s force(SHIP) personnel. The activity responsible forperforming each step in these procedures isidentified in parentheses at the beginning ofthe step.

NOTE

The BQN-3/TR-143 transduceris classified CONFIDENTIAL.The shipping container con-tains a copy of the FactoryAcceptance Test (FAT) docu-ment which is also classifiedCONFIDENTIAL. Appropriatesecurity measures for handlingand storage of these itemsmust be provided.

6-2.4 RECORDING RESULTS OF TESTSAND INSPECTIONS

6-2.5 The results of the various tests andinspections conducted in the preliminary andprocedural steps must be recorded in theappropriate blocks of Data Report Form 1.

6-2.6 Each test called out in the procedures isreferenced to a block in Data Report Form 1.Each block in the form is identified by theapplicable procedural step number and a capi-tal letter within each procedural step. Blocks inthe preliminary procedures portion of DataReport Form 1 are identified by letters only.The paragraph number which requires the testis shown in parentheses after the block num-ber. Where applicable, acceptable test valuesare given in the test-result block. The entireData Report Form 1, pages 6-38 through 6-46,may be reproduced and maintained at thework site as a part of the quality control pack-age required by applicable regulations.

6-2.7 REFERENCE DOCUMENTS

6-2.8 The drawings, technical manuals, hand-books and instructions listed in the followingparagraphs support the information containedin this chapter. Each document is unique insubject matter, therefore all documents listedmust be available for ready reference whileconducting underwater transducer/TCA repairprocedures.

6-2.9 DRAWINGS

a. NAVSEA 113-4695779, Foundations,AN/BQN-3

b. NAVSEA 101-4640634, NonPressureHull Frames 20, 21 and 22

c. NAVSEA 100-4640663, NonPressureHull Plating, Frame 6-27

d. NAVSEA 123-4788442, Access Plate,Bolted, Main Deck Forward

e. NAVSEA 101-4640632, Center LineLongitude Bulkhead, Frames 15-25

6-2

S0600-AA-PRO-060

6-3

Figure 6-1. Flow Diagram of BQN-3 Transducer Fault Isolation and Replacement.

S0600-AA-PRO-060

f. TRIREFFAC, Bangor DWG #T.R.F.411-026-87, Transducer Lifting Device

6-2.10 TECHNICAL MANUALS AND HAND-BOOKS

a. SSPO 0652-013-9 (Vol. 1 of 3 Part 4),AN/BQN-3J Sonar Sounding Set

b. NAVSEA OP 4429 (Vol. 3-Part 3) SMP33-4604, Sonar Transducer Test

c. NAVSEA 0900-LP-091-6010, Subma-rine Fastening Criteria for PressureContaining Systems

d. NAVSEA S0900-000-PRO-000/MLDGMAN, Molding and Inspection Proce-dures for Fabricating Connector Plugsfor Submarine Outboard Cables

e. NAVSEA S9165-AC-HBK-010, Sub-marine Sonar Dome Handbook

f. NAVSEA S9086-CQ-STM-000/081,Waterborne Underwater Hull Cleaningof Navy Ships

g. NAVSEA S9061-AA-MMA-010, Main-tenance and Repair Instructions, Pres-sure Hull Electrical Penetrations andAssociated Outboard Components

h. NAVSEA OD 52591, Trident SWSNavigation Subsystem Standard Oper-ating Procedures, Volume 1

6-2.11 SAFETY REFERENCES

a. OPNAVINST 5100.19 (series), NavySafety Precautions for Forces Afloat

b. COMSUBLANTINST 5101.2, Stan-dard Tag-Out Procedures

c. COMSUBPACINST 5101.4D, Equip-ment Tag-Out Procedures

d. NAVSEA 0994-LP-001-9010, U.S.Navy Diving Manual, Volume 1, Air Div-ing

6 -2 .12 EQUIP MENT AND MATERIALREQUIREMENTS

6-2.13 SUPPORT AND TEST EQUIPMENT

The equipment listed below is required to con-duct underwater transducer/TCA repairs. Theequipment should be assembled on site andtested or calibrated as required before thetask begins.

a. Insulation Test Set, Biddle21160W/21963C

b. Chain Hoist, 1-ton capacity, BeebeInternational, Inc. Model C3H010 witha 30-foot load chain vice the standard10-foot chain (Beebe, 2724 6th Ave. S.,Seattle, WA 98314)

c. Transducer Lifting Device, (TRIREF-FAC, Bangor DWG # T.R.F. 411-026-87)

d. Impedance Bridge ELA 250 DE

e. Hydraulic Impact Wrench with PowerUnit

f. Torque Wrench, 250 foot-poundcapacity

g. Torque Wrench, 125 inch-poundcapacity

h. Spanner Wrenches, 1-1/4 to 3 incheswith 1/8-inch diameter pin and 2 to 4-3/4 inches, claw type

i. Allen Wrench Set

j. Transducer face protective covers.

6-4

S0600-AA-PRO-060

6-2.14 MATERIALS

The materials listed in Table 6-1 must beobtained and positioned in the immediatevicinity of the job site before beginning under-water transducer/TCA repairs.

6-2.15 PRELIMINARY PROCEDURES

6-2.16 Before beginning the fault isolationand replacement procedures, conduct the fol-lowing tests to determine whether or not anelectrical fault exists.

6-2.17 (LWC) Conduct an insulation resis-tance test (SMP 33-4604) on the affected unit(starboard or port unit) and record the resultsin Block A on Data Report Form 1.

6-2.18 (LWC) Review Navigational OperatingProcedure (paragraph 6-2.10h), Data Sheet 7,from the ship’s records to determine whetherthe transducer was operable from the last at-sea data recorded.

6-2.19 (LWC) Measure the transducer/TCAcapacitance from the junction box and recordthe results in Blocks B of Data Report Form 1.

a. Set the impedance bridge for 1,000 Hz

b. Connect the inner shield to BRIDGECOMMON

c. Connect the center conductor of thecable to BRIDGE HI

NOTE

If BOTH capacitance ANDresistance are within specifiedacceptable ranges AND therehas been no degradation in at-sea performance, return thesystem to the desired status. IfBOTH capacitance AND resis-tance are within the specifiedacceptable ranges, BUT at-sea

performance was unsatisfac-tory, discontinue these proce-dures and perform faultisolation/repair between thejunction box and the transmit-ter/receiver in accordance withthe reference listed in para-graph 6-2.10a.

If EITHER capacitance ORresistance is outside the speci-fied acceptable range, continuewith procedural step 1, para-graph 6-2.20.

6-2.20 PROCEDURAL STEP 1: FAULT ISO-LATION

6-2.21 (LWC) Isolate the fault to either theinternal cabling/hull penetrator or to the trans-ducer/TCA.

6-2.22 (LWC) Request ship’s force to securepower and tag-out the system.

a. Set the sonar switch on the sonar indi-cator panel to the OFF position.

b. Secure the 60 Hz sonar power switchon power panel WP-11-1 and attach aDANGER tag.

c. Disconnect cable W4 within the trans-mitter/receiver network and attach aDANGER tag.

NOTE

Disconnect cable W4 from jackJ3 for the starboard unit or fromjack J4 for the port unit

d. Complete Block 1A of Data ReportForm 1.

e. Shut the AN/BQN-3J ventilationdamper.

6-5

S0600-AA-PRO-060

6-6

Table 6-1. List of Materials.

Item No. Description Qty Part No.

1 Termalene Grease 35-lb container NSN: 9G-9150-01-306-9167Item 7292-1ABelray Co., Inc.Farmingdale, NJ 07727

NOTE: Termalene can also be ordered directly from vendor in 14½-oz. cartridges, 12 per case.

2 D.C. Plug, 2 inches, or equivalent

1 NSN: 9C-5510-00-260-8958

3 O-Ring (Hull Penetrator)

As needed NSN: 9A-5330-00-543-3041P/N: M83248/1-220

4 Gasket (TCA Hull Connector)

As needed NSN: 1H-5530-01-230-7691P/N: CPG 1027/1-031

5 O-Ring (Transducer Receptacle Face)

As needed NSN: 9Z-5330-00-166-1026P/N: M83248/1-027

6 O-Ring (interior transducer receptacle)


7 D.C. Plug, 5 inches, or equivalent

1 NSN: 9C-5510-00-260-8966

8 Nylon Cable Ties 1 Pkg. NSN: 9G-5975-00-074-2072

9 Nylon Line1/2-inch1/4-inch

100 feet100 feet

NSN: 9Z-4020-01-255-0886NSN: 9Q-4920-00-928-3438

10 TCA Hull Connector Plug Modified with D-Ring

2 M24231/3-020**

11 Hull Penetrator Seal-ing Cap

2 NSN: 9N-5935-00-070-9487N24231/13-011**

12 TCA Transducer Con-nector Plug

2 MSS-K-DSR***NSN: 1HM-000-LL-TSC-9701

13 Transducer Recepta-cle Cap

2 MSS-K-DSP***

S0600-AA-PRO-060

6-7

Table 6-1. List of Materials - Continued.


14 O-Ring Lubricant As needed NSN: 1HM-000-LL-TSC-9700MIL-C-21567 (G-697)NSN: 9G-6850-00-702-4297

15 Transducer Hull Window Mounting Guide Studs with:

2 ½″ 13 UNC x 6″ Manufactured from Threaded Steel RodNSN: 9Z-5306-00-174-1937

(a) Flat Washers 2 ½″ 13 UNCNSN: 9Z-5310-00-809-5998

(b) Hex Nuts 2 ½″ 13 UNCNSN: 9Z-5310-00-768-0318

16 5/8″ Eyebolts (weight-tested to 680 lbs.)

8 5/8″ 11 UNC MS51937-7NSN: 9Z-5306-00-017-0810

17 U-Channel Rubber for Banding

As needed Neoprene Channel, ½″ Groove 96″ LongNSN: 9G-9390-00-872-6393

18 Stainless Steel Band-ing with:

(a) Stainless Steel Buckle/Seal

As needed

As needed

½″ CRES Banding RollNSN: 90-8135-01-023-4126

NSN: 9Z-5340-00-244-7325

19 Spare Hull Window Screws

16 ½″ 13 UNC - 3A x 2½″ to Spec FF-S-86, NiCu, Type IVNSN: 9Z-5305-01-210-1462

20 Spare Transducer Mounting Bolts

8 Capscrews, Socket Head, NiCuAl, 1″ - 8 UNC 3A x 3 1/4″ FF-S-86 Type VI (Procure Locally)

S0600-AA-PRO-060

6-8

Table 6-1. List of Materials - Continued


21 Preterminated & Pre-tested Transducer Cable Assembly (TCA):

(a) Transducer Cable Assembly (includes TCA Transducer Con-nector)

(b) TCA Hull Connector (Kit)

(c) Flat Gasket

(d) O-Ring

1

NSN: 8P-6605-LL-SOO-2983GE P/N 03538-77C71647281

NSN: 1H-5935-01-243-2429-SSP/N: CPG 1027/1-108****

NSN: 1H-5330-01-230-7691P/N: CPG 1027/1-031**** [part of item 21 (b)]

NSN: 9Z-5330-00-166-8411M83248/1-220 [part of item 21 (b)]

22 3/4″ inch Galvanized Shackle (weight-tested to 1,200 lbs.)

1 NSN: 9Z-4030-00-185-0489

23 O-Ring Removal Tool 1 Manufacture locally using stainless steel round bar,NSN: 9Z-9505-00-189-0574(see Figure 6-40)

24 Cable Clamp Screw 2 10 32 UNF-3A x 1A Long CRES Socket Head Cap-screw (MS16996-14)NSN: 9Z-5305-00-068-5408

S0600-AA-PRO-060



25 60 ft. Wire Rope Pen-dant manufactured from:

(a) Wire Rope, CRES 3/8″

(b) Swage Sleeve

1

As needed

As needed

3/8″ x 60′ with Soft Eye Swagged Each End (manufac-ture locally and weight tested to 1,200 lbs.)

NSN: 9Z-4010-00-222-4493

NSN: 9Z-4030-00-445-6210

26 Isopropyl Alcohol 1 qt. NSN: 9G-6810-00-983-8551

27 Cotton Swabs 1 pkg. NSN: 9L-6515-00-303-8250

28 BQN-3/TR143 Trans-ducer

NSN: 8P-5845-00-724-8307GE P/N 03538-7325806G2

*Commercial and Government Entity (CAGE) codes replaced Federal Supply Codes for Man-ufacturers (FSCM) in May 1986. The code numbers were not changed; only the name of thecodes changed.

**Part numbers beginning with “M” refer to D.G. O’Brien, Inc., P.O. Box 159, Seabrook, NH,03874 (CAGE: 17476), part numbers (see first footnote).

***Part numbers beginning with “MSS” refer to Brantner & Associates, 1240 Vernon Way, ElCajon, CA, 92020-1839 (CAGE: 15739), part numbers (see first footnote.)

****Part numbers (P/N) beginning with “CPG” refer to General Dynamics, Electric Boat Divi-sion, 4 Eastern Point Rd., Groton, CT 06340-4947 (CAGE: 96169), part numbers (see firstfootnote).

6-2.23 (SHIP) Remove the topside sonar cav-ity deck plate at frame 22 (paragraph 6-2.9 d)and attach a CAUTION tag that states: “DONOT CLOSE SONAR CAVITY WITHOUTCONTACTING LEAD WORK CENTER.”

6-2.24 (LWC) Pump sonar cavity dry.

6-2.25 (LWC) Remove sonar cavity interiordeck plate. Flush area around penetrators withfresh water and pump cavity dry.

NOTE

The terminology for the compo-nents of the TCA, the trans-ducer and the hull penetrator isgiven in Figure 6-2, and is usedthroughout these procedures.

6-2.26 (LWC) Disconnect the TCA from thehull penetrator using the spanner wrench onthe affected unit (3752W01-EHF64, starboardunit, or 3753W01-EHF65, port unit).

6-9

S0600-AA-PRO-060

6-10

Figure 6-2. AN/BQN-3J Transducer/Transducer Cable Assembly Components.

S0600-AA-PRO-060

6-2.27 (LWC) Visually inspect the TCA andthe hull penetrator for O-ring damage or leak-age indication. Record the results of theinspection in Block 1B of Data Report Form 1.

6-2.28 (LWC) Conduct an insulation resis-tance test on the hull penetrator and the inter-nal cabling and record the results in Block 1Cof Data Report Form 1.

NOTE

If ALL of the actual recordedvalues equal or exceed thespecified acceptable values,install the hull penetrator cap(item 11, Table 6-1) on the hullpenetrator and continue withparagraph 6-2.29. If ANY of therecorded values are less thanthe acceptable values, performcorrective maintenance on thehull penetrator and internalcabling and return to paragraph6-2.28.

6-2.29 (LWC) Conduct an insulation resis-tance test on the transducer/TCA and recordthe results in Block 1D of Data Report Form 1.

NOTE

If ALL of the actual recordedvalues equal or exceed thespecified acceptable values,discontinue these proceduresand continue with paragraph 6-2.99. (Disregard paragraph 6-2.106.) If ANY of the recordedvalues are less than theacceptable values, continuewith procedural step 2, para-graph 6-2.30.

6-2.30 PROCEDURAL STEP 2: FURTHERFAULT ISOLATION

6-2.31 (LWC/DV) Isolate the fault determinedby procedural step 1 to either the TCA or thetransducer, or both.

6-2.32 (LWC) Remove the old gasket (item 4,Table 6-1) from the TCA hull connector andthe old O-ring from the TCA hull connectorplug (item 10,Table 6-1) (Figure 6-3).

Damage to the O-ring or gasketmating surfaces may causeimproper seating and permitleakage. Use extreme care toprevent damage to these sur-faces while installing the O-ringand gasket.

NOTE

Lubricate all gaskets and O-rings with item 14, Table 6-1.

6-2.33 (LWC) Lubricate and install a newTCA hull connector gasket (item 4, Table 6-1).Lubricate and install a new hull penetrator O-ring (item 3, Table 6-1) on the TCA hull con-nector plug (item 10, Table 6-1)

6-2.34 (LWC) Install the TCA hull connectorplug (item 10, Table 6-1) into the TCA hullconnector, align the keying and tighten handtight.

6-2.35 (LWC) Attach a ½-inch nylon line (item9, Table 6-1) to the TCA hull connector sealingplug D ring and secure the line inside the top-side sonar cavity.

6-2.36 (LWC) Remove the banding from thetransducer cable.

CAUTION

6-11

S0600-AA-PRO-060

6-12

Figure 6-3. Connection of Transducer Cable Assembly Hull Connector to Hull Penetrator.

S0600-AA-PRO-060

6-2.37 (DV) Notify ship when divers are readyto enter water.

a. (SHIP) Pass the word that divers are inthe water.

b. (DV) Remove the transducer hull win-dow and mounting ring (Figure 6-4).

c. Remove the fairing compound from the16½-inch recessed Allen capscrews.

d. Benchmark the transducer hull windowand mounting ring to facilitate reinstal-lation.

A nylon lanyard is attached to apadeye inside the cavity and toa padeye on the transducer hullwindow to prevent loss of thewindow during removal. Ensurethat the lanyard is in place andsecurely attached beforereleasing the window.

e. Remove the 16 ½-inch capscrews fromthe transducer hull window using a5/16-inch Allen wrench.

6-2.38 (DV) Inspect the transducer hull win-dow being particularly attentive to the pres-ence of the following abnormal conditions:

a. Severe gouges and major nicks (refer-ence NAVSEA S9165-AC-HBK-010,Submarine Sonar Dome Handbook,paragraph 6-2.10e)

b. Biofouling FR 40 or greater (referenceNAVSEA S9086-CQ-STM-000/ 081,Waterborne Underwater Hull Cleaningof Navy Ships, paragraph 6-2.10f)

c. Report the findings or the inspection tothe LWC supervisor.

6-2.39 (LWC) Complete Block 2A of DataReport Form 1.

NOTE

If the diver’s report of inspec-tion findings indicates severedamage or biofouling, removethe window assembly for repairand/or cleaning. If removal isnot necessary, leave the win-dow suspended from the nylonlanyard until the job is com-pleted and the window is readyto be reinstalled (Figure 6-4).

6-2.40 (DV) Attach a stainless steel safetystrap to the padeye in the cavity and to thepadeye on the window.

6-2.41 (DV) Inspect the transducer being par-ticularly attentive to the presence of the follow-ing abnormal conditions:

a. Cuts, cracks, bubbles or other defectson the rubber transducer acousticalwindow covering.

b. Any signs of separation between therubber transducer acoustical windowcovering and the stainless steel trans-ducer body.

c. Report the finding of the inspection tothe LWC supervisor.

6-2.42 (LWC) Complete Block 2B of DataReport Form 1.

NOTE

The transducer should bereplaced if signs of separationexist between the rubber trans-ducer acoustical window cover-ing and the stainless steeltransducer body.

CAUTION

6-13

S0600-AA-PRO-060

6-14

Figure 6-4. Transducer Hull Window Assembly.

S0600-AA-PRO-060

Entry into the transducer cavityis not possible with SCUBAtanks; surface-supplied airmust be utilized.

6-2.43 (DV) Enter the transducer cavity.

6-2.44 (LWC/DV) Lower/pull the TCA throughthe cable conduit with the ½-inch nylon lineattached to the TCA hull connector plug.

6-2.45 (DV) Disconnect the ½-inch nylon linefrom the TCA hull connector plug.

6-2.46 (LWC) Pull the ½-inch nylon line backinto the cable conduit so that the lower end issix inches inside the end of the conduit.

6-2.47 (DV) Plug the lower cable conduit andvent pipe using D.C. plugs (items 2 and 7,Table 6-1)

6-2.48 (DV) De-water the cavity using divers’air.

NOTE

If the cavity cannot be de-watered, proceed to proce-dural step 6, paragraph 6-2.170.

6-2.49 (DV) Ensure that the area above thetransducer and the transducer connector iscompletely dry.

Acute bend radii in the cablecan cause excessive stressand possible damage to thecable insulation. Maintain mini-mum bend radius of 4 incheswhile pulling the cable.

6-2.50 (DV) Swim the plugged hull connectorend of the TCA to the surface.

6-2.51 (LWC) Pull the plugged hull connectorend of the TCA topside, external to the shipand secure.

6-2.52 (DV) Place the megger and the con-nector cleaning material in a watertight con-tainer and take them below to the transducercavity.

If water contacts the electricalsystem components, the sys-tem can short out. Ensure thatthe transducer receptacle andTCA transducer connector donot get wet.

6-2.53 (DV) Loosen the Allen set screw(3/32-inch Allen recess) on the TCA trans-ducer connector and disconnect the TCAtransducer connector by turning the connectorring counterclockwise. See Figure 6-5.

6-2.54 (DV) Visually inspect the TCA trans-ducer connector and the transducer recepta-cle for correct O-ring seating and forindications of flooding.

6-2.55 (DV) Report the findings of the inspec-tion to the LWC supervisor.

6-2.56 (LWC) Complete Block 2C on DataReport Form 1.

Damage to the O-ring seatingsurfaces may cause improperseating and permit leakage.Use extreme care to preventdamage to these surfaceswhile installing the O-rings.

WARNING

CAUTION

CAUTION

CAUTION

6-15

S0600-AA-PRO-060

Figure 6-5. Connection of Transducer Cable Assembly Transducer Connector to Transducer Receptacle.

6-2.57 (DV) Conduct an insulation resistancetest on the transducer and TCA from within thetransducer cavity.

6-2.58 (DV) Report the actual resistance val-ues to the LWC supervisor.

6-2.59 (LWC) Complete Block 2D on DataReport Form 1.

6-2.60 (DV) Lubricate the transducer connec-tor O-rings (items 5 and 6, Table 6-1) andinstall the O-rings on the TCA transducer con-nector plug (item 12, Table 6-1).

6-16

S0600-AA-PRO-060

Acute bend radii in the cablecan cause excessive stressand possible damage to thecable insulation. Maintain aminimum bend radius of 4inches while pulling the cable.

6-2.61 (DV) Install the TCA transducer con-nector plug on the TCA transducer receptacle,align the keying and tighten hand-tight.

6-2.62 (DV) Use a 5/32-inch Allen wrench toremove the TCA cable clamp from the cableclamp support and remove the cable from thesupport.

6-2.63 (LWC) Replace the TCA cable clampon the cable clamp support to prevent its loss.

6-2.64 (LWC) Pull the TCA topside, removethe TCA transducer connector plug (item 12,Table 6-1) and clean the TCA transducer con-nector.

6-2.65 (DV) Remove and discard the O-ringsfrom the transducer receptacle.

6-2.66 (DV) Clean the transducer receptacle.

Inadvertent flooding of theunattended cavity can causeserious damage if the trans-ducer connector is unprotected.Ensure that the O-rings andtransducer connector cap areproperly installed on the trans-ducer connector before leavingthe cavity.


6-2.67. (DV) Lubricate the receptacle O-rings(items 5 and 6, Table 6-1) and install the O-rings on the transducer receptacle.

6-2.68. (DV) Install the transducer connectorcap (item 13, Table 6-1) on the transducerreceptacle, align the keying and tighten hand-tight.

6-2.69. (DV) Place the megger and the con-nector cleaning material in a watertight con-tainer and swim the container to the surface.

6-2.70. (LWC) Conduct an insulation resis-tance test on the TCA. Complete Block 2E onData Report Form 1.

NOTE

If the TCA is defective and thetransducer is satisfactory, con-tinue with procedural step 3,paragraph 6-2.71.

If the transducer is defective,regardless of the condition ofthe TCA, continue with proce-dural step 4, paragraph 6-2.109.

CAUTION

CAUTION

CAUTION

6-17

S0600-AA-PRO-060

6-2.71 PROCEDURAL STEP 3: REPLACE-MENT OF THE TRANSDUCER CABLEASSEMBLY IN A DRY TRANSDUCER CAV-ITY

6-2.72 (LWC) Take the failed TCA to therepair shop for problem isolation; repair, if pos-sible; and retest.

6-2.73 (LWC) Prepare the replacement cablefor shipboard installation.


6-2.74 (LWC) Lubricate the gasket (item 4,Table 6-1) and install the gasket on the TCAhull connector.

6-2.75 (LWC) Lubricate the O-ring (item 3,Table 6-1) and install the O-ring on the TCAhull connector plug (item 10, Table 6-1).

6-2.76 (LWC) Install the TCA hull connectorplug on the TCA hull connector, align the key-ing and tighten hand tight.

6-2.77 (LWC) Lubricate the O-rings (items 5and 6, Table 6-1) and install the O-rings on theTCA transducer connector plug (item 12,Table 6-1).

6-2.78 (LWC) Install the TCA transducer con-nector plug on the TCA transducer connector,align the keying and tighten hand-tight.

Acute bend radiis in the cablecan cause excessive stressand possible damage to thecable insulation. Maintain aminimum bend radius of 4inches while pulling the cable.

6-2.79 (LWC/DV) Pull the transducer connec-tor end of the TCA along the outside of theship’s hull and into the de-watered transducercavity.

6-2.80 (LWC) Secure the hull connector endof the TCA topside.

If water contacts the electricalsystem components, the sys-tem can short out. Ensure thatthe connector does not get wet.

6-2.81 (DV) Remove the TCA transducer con-nector plug from the TCA transducer connec-tor and the transducer receptacle cap from thetransducer receptacle.

6-2.82 (DV) Remove and discard the O-ringsfrom the transducer receptacle.

6-2.83 (DV) Inspect all connector surfaces onthe transducer receptacle to ensure that theyare clean, dry and free of contaminants.

6-2.84 (DV) Clean the receptacle surfaces asnecessary using isopropyl alcohol and cottonswabs (items 26 and 27, Table 6-1).

CAUTION

CAUTION

CAUTION

6-18

S0600-AA-PRO-060

6-2.85 (DV) Lubricate and install two new O-rings (items 5 and 6, Table 6-1) on the trans-ducer receptacle.

6-2.86 (DV) Attach the TCA transducer con-nector to the transducer receptacle, align thekeying and tighten hand-tight.

6-2.87 (DV) Use a 3/32-inch Allen wrench totighten the set screw in the knurled ring.

NOTE

The purpose of the set screw isto prevent the knurled ring fromloosening. Do not overtightenthe set screw.

6-2.88 (DV) Use a 5/32-inch Allen wrench toremove the TCA cable clamp from the cableclamp support, align the cable in the supportand reattach the TCA cable clamp.

6-2.89 (LWC) Remove the TCA hull connec-tor plug from the TCA hull connector.

6-2.90 (LWC) Conduct an insulation resis-tance test on the transducer/TCA and recordthe results in Block 3A on Data Report Form 1.

NOTE

If the actual recorded valuesequal or exceed the specifiedacceptable values, continuewith paragraph 6-2.91. If theactual values are less than theacceptable values, return toprocedural step 2, paragraph 6-2.30, for fault isolation andproblem resolution.

6-2.91 (LWC) Reconnect the TCA hull con-nector plug to the TCA hull connector, ensur-ing that the gasket and O-ring are correctlyinstalled.


6-2.92 (DV) Remove all tools and cleaningmaterials from the transducer cavity andreturn them to the surface.

6-2.93 (DV) Remove the D.C. plugs from thelower cable conduit and from the vent pipe.

6-2.94 (LWC) Lower the ½-inch nylon linedown through the conduit so that it is readilyaccessible to the diver.

6-2.95 (DV) Swim the plugged hull connectorend of the TCA to the transducer cavity andattach the ½-inch nylon line to the TCA hullconnector sealing plug.


6-2.96 (LWC/DV) Pull the ½-inch nylon lineand the TCA up through the conduit. Diversshould assist by guiding the cable into theconduit. Continue to pull cable until it forms alazy S in the transducer cavity.


CAUTION

CAUTION

6-19

S0600-AA-PRO-060

6-2.98 (LWC) Conduct an insulation resis-tance test on the transducer/TCA and recordthe results in Block 3B of Data Report Form 1.

NOTE


6-2.99 (LWC) Remove the hull penetrator capfrom the hull penetrator.

6-2.100 Remove and discard the O-ring fromthe hull penetrator using the O-ring removaltool (item 23, Table 6-1).

6-2.101 (LWC) Clean the hull penetrator witha stiff-bristled brush, cotton swabs and alco-hol.

6-2.102 (LWC) Lubricate and install a new O-ring (item 3, Table 6-1) on the hull penetrator.

6-2.103 (LWC) Lubricate and install a newgasket (item 4, Table 6-1) on the TCA hullconnector.

6-2.104 (LWC) Connect the TCA hull connec-tor to the hull penetrator and tighten using theclaw-type spanner wrench.

6-2.105 (LWC) Use nylon cable ties to tempo-rarily band the cable outward from the hullpenetrator to the cable brackets in the sonarcavity topside.

6-2.106 (DV) Ensure that the transducercable in the transducer cavity forms a lazy Sabove the transducer.

NOTE

Do not band or tie the excesscable in the transducer cavity.

6-2.107 (LWC) Conduct an insulation resis-tance test (SMP 33-4604) on the trans-ducer/TCA from the junction box and recordthe results in Block 3C of Data Report Form 1.

NOTE


6-2.108 (LWC) Measure the capacitance ofthe transducer/TCA from the junction box.

a. Set the impedance bridge for 1,000 Hz.

b. Connect the inner shield to BRIDGECOMMON.

c. Connect the center conductor toBRIDGE HI.

d. Record the results in Block 3D of DataReport Form 1.

NOTE

If the actual recorded value iswithin the specified range ofacceptable values, continuewith procedural step 7, para-graph 6-2.240. If the actualvalue is not within the range ofacceptable values, return toprocedural step 1, paragraph 6-2.20, for fault isolation andproblem resolution.

6-20

S0600-AA-PRO-060

6-2.109 PROCEDURAL STEP 4: REMOVALOF A TRANSDUCER IN A DRY TRANS-DUCER CAVITY

Do not attempt to rig the trans-ducer using existing eyebolts.Eyebolts supplied with thetransducer may fail during han-dling. Use only item 16, Table6-1.

6-2.110 (DV) Install four 5/8-inch eyebolts(item 16, Table 6-1) on the transducer (Figure6-6).

6-2.111 (DV) Attach the transducer liftingdevice (Figure 6-6) to the four 5/8-inch eye-bolts.

6-2.112 (DV) Attach a 1-ton chain hoist to thepadeye welded on the sea chest overheadwithin the transducer foundation (Figure 6-7).C6-2.113

Chain twist in the working chainloops of manual chain hoistsand chain falls will cause chainfailure. Chain twist in the work-ing chain loop occurs when thechain has an improper reevethrough the chain sprocketsOR (more often) the runningblock has flipped up andthrough any of the chain loops(see figure 6-10A)

All chain hoists and chain fallsissued with NAVSEA SUP-SALV Underwater Ship Hus-bandry equipment kits havebeen checked for chain twistand the chain hoist/fall has

been loosely two-blocked sothat the running block can notflip over into the working chainloops during shipment.



Hang the hoist from the tophook in a safe, accessible loca-tion. Tighten the hoist until lessthen one foot of separationexists between the hoist bodyand the running block. Theshort throw allows for mucheasier visual detection of twistin the individual chain reeves.Confirm that none of the chainlengths running from the work-ing chain sprocket to the run-ning chain sprocket (chainreeves) have any twist causedby the running block beingflipped over and through theloop of the chain. If ANY chaintwist is detected, flip the run-ning block back through thechain loop until the twist isremoved. If ANY twist can notbe removed by flipping the run-ning block, the hoist chainMUST be removed from thehoist body and re-reeve exer-cising care not to twist thechain during installation..

6-2.113 (DV) Connect the chain hoist hook tothe transducer lifting device (Figure 6-7) andremove the slack from the chain hoist liftingchain.

WARNING

CAUTION

Change 1 6-21

S0600-AA-PRO-060

Uncontrolled movement of the600-pound transducer canresult in serious personal injuryor property damage. Do notloosen the transducer retainingbolts more than four turns untilit can be verified that the trans-ducer is totally supported bythe chain hoist.

6-2.114 (DV) Use a hydraulic impact wrenchto loosen the eight 1-inch transducer retainingbolts four turns (Figure 6-8).

6-2.115 (DV) Ensure that the transducer istotally supported by the chain hoist.

Uncontrolled movement of the600-pound transducer canresult in serious personal injuryor property damage. Ensurethat divers and diver umbilicalsare clear of the transducer cav-ity and the transducer cavityedges while handling the trans-

ducer.

6-2.116 (DV) Remove the eight 1-inch trans-ducer retaining bolts.

6-2.117 (DV) Slack off on the chain hoist tolower the transducer far enough that the trans-ducer lifting device clears the transducer cav-ity and is accessible to attach a shackle(approximately 3 or 4 feet) (Figure 6-9).

6-2.118 (RIG) Attach a 60-foot wire rope pen-dant (item 25, Table 6-1) to the hook of theshore crane and lower the pendant into thewater.

6-2.119 (DV) Swim the lazy end of the 60-footwire rope pendant to the transducer andshackle to the transducer lifting device (Figure6-10).

6-2.120 (RIG/DV) Yard and stay the trans-ducer by alternately slacking the chain hoistand heaving in on the shore crane hook.

6-2.121 (DV) Disconnect the chain hoist liftingchain from the transducer lifting device whenthe transducer is plumbed under the shorecrane hook.

6-2.122 (RIG) Raise transducer to pier andlower onto a protective faceplate that hasbeen placed on a pallet. Carefully align protec-tive faceplate threaded mounting holes (4)

Fig. 6-10A Typical Running Block Flip (one or two part chain reeve)

WARNING

WARNING

6-21A Change 1

S0600-AA-PRO-060


Change 1 6-21B

S0600-AA-PRO-060

6-24

S0600-AA-PRO-060

6-22

Figure 6-6. Transducer Lifting Device Installed.

S0600-AA-PRO-060

6-23

Figure 6-7. Chain Hoist Rigged.

S0600-AA-PRO-060

6-24

Figure 6-8. Transducer Retaining Bolts.

S0600-AA-PRO-060

6-25

Figure 6-9. Diver Operating Chain Hoist.

S0600-AA-PRO-060

6-26

Figure 6-10. Yard and Stay Rig.

S0600-AA-PRO-060

with corresponding transducer mounting holesas transducer is being lowered (Figure 6-11).

6-2.123 (RIG) Transport the transducer to aclassified storage area.

NOTE

When both a transducer andTCA are available for installa-tion, continue with proceduralstep 5, paragraph 6-2.124.

6-2.124 PROCEDURAL STEP 5: REPLACE-MENT OF A TRANSDUCER AND TRANS-DUCER CABLE ASSEMBLY IN A DRYTRANSDUCER CAVITY

6-2.125 (LWC) Conduct an insulation resis-tance test on the replacement transducer(item 28, Table 6-1) and record the results inBlock 5A of Data Report Form 1. Also recordserial number of replacement transducer.

6-2.126 (LWC) Measure the capacitance ofthe replacement transducer.

a. Set the impedance bridge to 1,000 Hz.



d. Record the results in Block 5B of DataReport Form 1.

NOTE

If the actual values resultingfrom either of the tests con-ducted in paragraphs 6-2.125and 6-2.126 are not withinacceptable limits, acquire anew transducer and return toparagraph 6-2.125.

6-2.127 (LWC) Conduct an insulation resis-tance test on the replacement TCA. CompleteBlock 5C on Data Report Form 1.

NOTE

If the actual values resultingfrom the test conducted inparagraph 6-2.127 are notwithin acceptable limits,acquire a new transducer cableassembly and return to para-graph 6-2.127.

6-2.128 (LWC) Remove and discard the O-rings from the transducer receptacle.

6-2.129 (LWC) Inspect all receptacle surfaceson both the transducer receptacle and theTCA transducer connector to ensure that theyare clean, dry and free of contaminants.

6-2.130 (LWC) Clean the connector surfacesas necessary using isopropyl alcohol and cot-ton swabs (items 26 and 27, Table 6-1).

6-2.131 (LWC) Lubricate and install two newO-rings (items 5 and 6, Table 6-1) on thetransducer receptacle.

6-2.132 (LWC) Attach the TCA transducerconnector to the transducer receptacle, alignthe key and tighten hand tight.

6-2.133 (LWC) Use a 3/32-inch Allen wrenchto tighten the set screw in the knurled ring.

NOTE


6-2.134 (LWC) Use a 5/32-inch Allen wrenchto remove the TCA cable clamp from the cableclamp support, align the cable in the supportand reattach the rubber TCA cable clamp.

6-27

S0600-AA-PRO-060

Figure 6-11. Transducer Protective Face Plate.

6-2.135 (LWC) Conduct an insulation resis-tance test on the replacement transducer/TCAand record the results in Block 5D of DataReport Form 1.

Do not attempt to rig the trans-ducer using existing eyebolts.Eyebolts supplied with thetransducer may fail during han-

dling. Use only item 16, Table6-1.

6-2.136 (LWC) Install four 5/8-inch eyebolts(item 16, Table 6-1) on the transducer.

6-2.137 (LWC) Attach the transducer liftingdevice to the four eyebolts (Figure 6-6).

6-2.138 (LWC) Install the TCA hull connectorplug (item 10, Table 6-1) on the TCA hull con-nector.

WARNING

6-28

S0600-AA-PRO-060

6-2.139 (LWC) Coil the cable on top of thetransducer around the transducer lifting deviceand secure it in place with nylon cable ties(Figure 6-12).

6-2.140 (RIG) Attach the 60-foot wire ropependant, suspended from the crane hook tothe transducer lifting device.

6-2.141 (RIG) Lift the transducer to a conve-nient height and remove the transducer pro-tective faceplate from the transducer (Figure6-11).

6-2.142 (LWC) Inspect the transducer rubberface and record the results of the inspection inBlock 5E of Data Report Form 1.

NOTE

If the transducer is damaged,acquire a new transducer andreturn to paragraph 6-2.125.

Refer to the Chain Hoist CAU-TION immediately before para-graph 6-2.113.

6-2.143 (RIG) Lower the transducer into thewater deep enough to allow divers to attachthe transducer cavity chain hoist lifting chainto the transducer lifting device.

6-2.144 (DV) Attach the transducer cavitychain hoist lifting chain to the transducer liftingdevice.

6-2.145 (RIG/DV) Yard and stay the trans-ducer to the transducer cavity by alternatelyslacking the crane hook and heaving in on thechain hoist (Figure 6-10).

6-2.146 (DV) Disconnect the 60-foot wirerope pendant from the transducer lifting device

when the transducer is plumbed under thechain hoist.

Uncontrolled movement of the600-pound transducer mayresult in serious personal injuryor property damage. Ensurethat divers and divers’ umbili-cals are clear of the transducercavity and the transducer cavityedges while handling the trans-ducer.

Crushing or pinching the trans-ducer cable will damage thecable. Ensure that the cablecoiled on top of the transducerdoes not become crushed orpinched between the trans-ducer and the transducer foun-dation.

6-2.147 (DV) Take in on the chain hoist toraise the transducer into the cavity until it isapproximately flush with the transducer foun-dation (Figure 6-9).

6-2.148 (DV) Coat eight 1-inch bolts (item 20,Table 6-1) with Termalene grease (item 1,Table 6-1).

6-2.149 (DV) Bolt the transducer to the trans-ducer foundation with the eight 1-inch bolts.

NOTE

Torque the bolts in a diametri-cally opposed sequence in 50foot-pound increments. Reportthe completion of each torquingsequence to the LWC supervi-sor.

CAUTION

WARNING

CAUTION

Change 1 6-29

S0600-AA-PRO-060

Figure 6-12. Cable Coiled on Handling Fixture.

6-2.150 (DV) Torque the 1-inch bolts to 250foot-pounds 25 foot-pounds.

6-2.151 (LWC) Complete Block 5F of DataReport Form 1.

6-2.152 (DV) Remove the nylon cable tiesholding the cable in place on the transducerlifting device and uncoil the cable.

6-2.153 (DV) Remove the transducer cavitychain hoist, transducer lifting device and liftingeyebolts and return them to the surface.

6-2.154 (DV) Remove all cleaning materialsand tools from the transducer cavity andreturn them to the surface.

6-2.155 (DV) Remove the D.C. plugs from thelower cable conduit and from the vent pipe.

6-2.156 (LWC) Lower the ½-inch nylon linedown through the conduit so that it is readilyaccessible to the diver.

6-2.157 (DV) Attach the ½-inch nylon line tothe TCA hull connector plug.

6-30 Change 1

S0600-AA-PRO-060


6-2.158 (LWC/DV) Pull the ½-inch nylon lineand the TCA through the cable conduit. Diversshould assist by guiding the cable into theconduit. Continue pulling cable until it forms alazy S in cavity.


6-2.160 (LWC) Conduct an insulation resis-tance test on the transducer/TCA and recordthe results in Block 5G of Data Report Form 1.

NOTE

If the actual recorded valuesequal or exceed the specifiedacceptable values, continuewith paragraph 6-2.161. If theactual values are less than theacceptable values, return toprocedural step 2, paragraph 6-2.30 for fault isolation and prob-lem resolution.

6-2.161 (LWC) Remove the hull penetratorcap from the hull penetrator.



6-2.164 (LWC) Lubricate and install a new O-ring (item 3, Table 6-1) on the hull penetrator

and a new gasket (item 4, Table 6-1) on theTCA hull connector.

6-2.165 (LWC) Connect the TCA hull connec-tor to the penetrator and tighten using the clawtype spanner wrench.

6-2.166 (LWC) Use nylon cable ties to tempo-rarily band the transducer cable outward fromthe hull penetrator to the cable brackets in thesonar cavity topside.

6-2.167 (DV) Ensure that the excess trans-ducer cable in the transducer cavity forms alazy S above the transducer.

NOTE


6-2.168 (LWC) Conduct an insulation resis-tance test (SMP 33-4604) on the trans-ducer/TCA from the junction box and recordthe results in Block 5H of Data Report Form 1.

NOTE

If the actual recorded valuesequal or exceed the specifiedacceptable values, continuewith paragraph 6-2.169. If theactual values are less than therecorded values, return to pro-cedural step 1, paragraph 6-2.20, for fault isolation andproblem resolution.





CAUTION

Change 1 6-31

S0600-AA-PRO-060

d. Record the results in Block 5I of DataReport Form 1.

NOTE

If the actual recorded value iswithin the range of acceptablevalues, continue with proce-dural step 7, paragraph 6-2.240. If the actual value is notwithin the range of acceptablevalues, return to proceduralstep 1, paragraph 6-2.20, forfault isolation and problem res-olution.

6-2.170 PROCEDURAL STEP 6: REMOVALAND REPLACEMENT OF A TRANSDUCERAND TRANSDUCER CABLE ASSEMBLYFROM A FLOODED TRANSDUCER CAVITY


6-2.171 (DV) Install four 5/8-inch eyebolts(item 16, Table 6-1) on the transducer.

6-2.172 (DV) Attach the transducer liftingdevice to the four eyebolts (Figure 6-6).

6-2.173 (DV) Coil the cable on top of thetransducer around the transducer lifting deviceand secure the cable to the transducer liftingdevice with nylon cable ties (Figure 6-12)..

Refer to the Chain Hoist CAU-TION immediately before para-graph 6-2.113.

6-2.174 (DV) Attach a chain hoist to thewelded padeye on the sea chest overheadwithin the transducer foundation.

6-2.175 Connect the chain hoist lifting chainto the transducer lifting device and remove allslack from the lifting chain (Figure 6-7).

Uncontrolled movement of the600-pound transducer mayresult in serious personal injuryor property damage. Do notloosen the transducer retainingbolts more than four turns untilit can be verified that the trans-ducer is totally supported bythe chain hoist.

6-2.176 (DV) Use a hydraulic impact wrenchto loosen the eight 1-inch transducer retainingbolts four turns (Figure 6-8).


Uncontrolled movement of the600-pound transducer canresult in serious personal injuryor property damage. Ensurethat divers and diver umbilicalsare clear of the transducer cav-ity and the transducer cavityedges while handling the trans-ducer.

6-2.178 (DV) Remove the eight 1-inch trans-ducer retaining bolts.

6-2.179 (DV) Slack off on the chain hoist tolower the transducer far enough that the trans-ducer lifting device clears the transducer cav-ity and is accessible to attach a shackle(approximately 3 or 4 feet) (Figure 6-9).

WARNING

CAUTION

WARNING

WARNING

6-32 Change 1

S0600-AA-PRO-060

6-2.180 (RIG) Attach a 60-foot wire rope pen-dant (item 25, Table 6-1) to the hook of theshore crane.

6-2.181 (RIG) Lower the 60-foot wire ropependant into the water to a sufficient depth toallow divers to attach it to the transducer liftingdevice.

6-2.182 (DV) Swim the lazy end of the 60-footwire rope pendant to the transducer andshackle to the transducer lifting device.

6-2.183 (RIG/DV) Yard and stay the trans-ducer by alternately slacking the chain hoistand heaving in on the crane hook (Figure 6-10).


6-2.185 (RIG) Remove transducer to pier andlower onto a protective faceplate that hasbeen placed on a pallet. Carefully align protec-tive faceplate threaded mounting holes (4)with corresponding transducer mounting holesas transducer is being lowered (Figure 6-11).

Change 1 6-32A

S0600-AA-PRO-060


6-32B Change 1

S0600-AA-PRO-060

been placed on a pallet. Carefully align protec-tive faceplate threaded mounting holes (4)with corresponding transducer mounting holesas transducer is being lowered (Figure 6-11).

6-2.186 (RIG) Remove the 60-foot wire ropependant from the transducer lifting device.

6-2.187 (LWC) Uncoil the TCA from the top ofthe transducer.

6-2.188 (LWC) Loosen the Allen set screw(3/32-inch Allen recess) on the TCA trans-ducer connector and disconnect the TCA fromthe transducer by turning the connector ringcounterclockwise.

6-2.189 (LWC) Inspect the TCA transducerconnector and the transducer receptacle forcorrect O-ring seating and indications of flood-ing. Record the results of the inspection inBlock 6A of Data Report Form 1.


6-2.190 (LWC) Lubricate the connector O-rings (items 5 and 6, Table 6-1) and install theO-rings on the TCA transducer connector plug(item 12, Table 6-1),

6-2.191 (LWC) Install the TCA transducerconnector plug on the TCA transducer recep-tacle, align the key and tighten hand- tight.

6-2.192 (LWC) Use a 5/32-inch Allen wrenchto remove the TCA cable clamp from the cableclamp support and remove the cable from thesupport.



6-2.194 (LWC) Lubricate the receptacle O-rings (items 5 and 6, Table 6-1) and install theO-rings on the transducer receptacle.

6-2.195 (LWC) Install the transducer connec-tor cap (item 13, Table 6-1) on the transducerreceptacle, align the keying and tighten handtight.

6-2.196 (LWC) Transport the transducer to aclassified storage area.

6-2.197 (LWC) Take the TCA to the repairshop for problem isolation; repair if necessary;and retest.

6-2.198 (LWC) Conduct an insulation resis-tance test on the TCA and record the results inBlock 6B on Data Report Form 1.

6-2.199 (LWC) Conduct an insulation resis-tance test on the transducer and record theresults in Block 6C on Data Report Form 1.

6-2.200 (LWC) Measure the capacitance ofthe transducer.





CAUTION

CAUTION

6-33

S0600-AA-PRO-060

NOTE

The results of the tests con-ducted in paragraphs 6-2.198through 6-2.200 will determinewhether the transducer or theTCA or both are defective. Afterthe defective compo-nent(s)have been replaced orrepaired, the tests in para-graphs 6-2.198 through 6-2.200 should be conductedagain until satisfactory resultsare achieved. Then continuewith these procedures at para-graph 6-2.201.

6-2.201 (LWC) Inspect all connector surfaceson both the transducer and the cable toensure that they are clean, dry and free ofcontaminants.



6-2.204 (LWC) Attach the TCA transducerconnector to the transducer receptacle, alignthe key and tighten hand tight.


NOTE


6-2.206 (LWC) Use a 5/32-inch Allen wrenchto remove the TCA cable clamp from the cableclamp support, align the cable in the supportand reattach the TCA cable clamp.

6-2.207 (LWC) Conduct an insulation resis-tance test on the replacement transducer/TCAand record the results in Block 6E of DataReport Form 1.

NOTE

If the actual recorded valuesequal or exceed the specifiedacceptable values, continuewith these procedures at para-graph 6-2.208. If the actualrecorded values are less thanthe acceptable values, discon-nect the cable assembly fromthe transducer and return to theprocedural step at paragraph 6-2.198 for fault isolation andproblem resolution.


6-2.208 (LWC) Install four, 5/8-inch eyebolts(item 16, Table 6-1) on the transducer.




6-2.212 (LWC) Install the TCA hull connectorplug on the TCA hull connector, align the keyand tighten hand-tight.

6-2.213 (LWC) Coil the cable on top of thetransducer around the transducer lifting device

WARNING

6-34

S0600-AA-PRO-060

and secure it to the transducer lifting devicewith nylon cable ties (Figure 6-12).

6-2.214 (RIG) Attach the 60-foot wire ropependant, suspended from the shore cranehook, to the transducer lifting device.

6-2.215 (RIG) Lift the transducer to a conve-nient height and remove the transducer pro-tective faceplate (Figure 6-11).

6-2.216 (LWC) Inspect the transducer rubberface and record the results of the inspection inBlock 6F of Data Report Form 1.

NOTE

If the transducer is damaged,obtain a new transducer andreturn to paragraph 6-2.199.

6-2.217 (RIG) Lower the transducer into thewater deep enough to allow divers to attachthe transducer cavity chain hoist lifting chainto the transducer lifting device.


6-2.219 (RIG/DV) Yard and stay the trans-ducer to the transducer cavity by alternatelyslacking the crane hook and heaving in on thechain hoist (Figure 6-10).

6-2.220 (DV) Disconnect the 60-foot wirerope pendant from the transducer lifting devicewhen the transducer is plumbed under thechain hoist.

Uncontrolled movement of the600-pound transducer mayresult in serious personal injuryor property damage. Ensurethat divers and diver umbilicalsare clear of the transducer cav-

ity and the transducer cavityedges while handling the trans-ducer.

Crushing or pinching the trans-ducer cable will damage thecable. Ensure that the cablecoiled on top of the transducerdoes not become crushed orpinched between the trans-ducer and the transducer foun-dation.

6-2.221 (DV) Take in on the transducer cavitychain hoist to lift the transducer into the cavityand approximately flush with the transducerfoundation (Figure 6-9).


6-2.223 (DV) Bolt the transducer to the foun-dation using the eight 1-inch bolts.

NOTE


6-2.224 (DV) Torque the eight 1-inch bolts to250 foot-pounds, 25 foot-pounds.

6-2.225 (LWC) Complete Block 6G of DataReport Form 1.

6-2.226 (DV) Remove the nylon cable tiesbanding the cable to the transducer liftingdevice, uncoil the cable and attach the ½-inchnylon line to the TCA hull connector plug.

WARNING

CAUTION

6-35

S0600-AA-PRO-060

6-2.227 (DV) Remove the transducer cavitychain hoist, the transducer lifting device andthe eyebolts and return them to the surface.

Acute bend radii on the cablecan cause excessive stressand possible damage to thecable insulation. Maintain aminimum bend radius or 4inches while pulling the cable.

6-2.228 (LWC/DV) Pull the ½-inch nylon lineand the TCA through the conduit. Diversshould assist by guiding the cable into theconduit. Continue pulling cable until it forms alazy S.


6-2.230 (LWC) Conduct an insulation resis-tance test on the transducer/TCA and recordthe results in Block 6H of Data Report Form 1.

NOTE


6-2.231 (LWC) Remove the hull penetratorcap.



6-2.234 (LWC) Lubricate and install a new O-ring (item 3, Table 6-1) on the hull penetratorand a new gasket (item 4, Table 6-1) on theTCA hull connector.


6-2.236 (LWC) Use nylon cable ties to tempo-rarily band the transducer cable outward fromthe hull penetrator to the cable brackets in thesonar cavity topside.

6-2.237 (DV) Ensure that the excess cableforms a lazy S above the transducer.

NOTE


6-2.238 (LWC) Conduct an insulation resis-tance test (SMP 33-4604) on the trans-ducer/TCA from the junction box and recordthe results in Block 6I of Data Report Form 1.

NOTE



a. Set impedance bridge for 1,000 Hz.

b. Connect inner shield to BRIDGE COM-MON.

c. Connect the center conductor of cableto BRIDGE HI.

CAUTION

6-36

S0600-AA-PRO-060

d. Complete Block 6J of Data ReportForm 1.

NOTE

If the actual recorded value iswithin the specified range ofacceptable values, continuewith paragraph 6-2.240. If theactual value is not within thespecified range of acceptablevalues, return to proceduralstep 2, paragraph 6-2.30, forfault isolation and problem res-olution.

6-2.240 PROCEDURAL STEP 7: CONFIGU-RATION RESTORATION

6-2.241 (LWC) Replace the nylon cable tiesin the sonar cavity with U-channel rubber andstainless steel banding (items 17 and 18,Table 6-1).

6-2.242 (LWC) Reinstall the interior deckplate in the sonar cavity.

6-2.243 (LWC) Inspect the sonar cavity toensure removal of all material and tools.

6-2.244 (SHIP) Close out the cavity, removethe CAUTION tag and reinstall the hull deckplate.

6-2.245 (DV) Remove the stainless steelsafety strap from the transducer hull windowassembly and return the strap to the surface.

6-2.246 (DV) Inspect the transducer cavity toensure removal of all material and tools.

6-2.247 (DV) Realign the hull window assem-bly with the alignment marks.

Use of ½-inch 13 UNC x 2½inch capscrews to pull the win-dow into place will result indamage to the plastic ring inthe window assembly. Use the½-inch 13 UNC x 6-inch studs(item 15, Table 6-1) to preventdamage.

6-2.248 (DV) Reinstall the transducer hullwindow assembly using the two ½-inch 13UNC x 6-inch studs (item 15, Table 6-1) to pullthe window assembly into place.

6-2.249 (DV) Lubricate with Termalenegrease (item 1, Table 6-1) and install 14½-inch 13 UNC x 2½-inch capscrews in theremaining holes. Remove the previouslyinstalled ½-inch 13 UNC x 6-inch studs andreplace them with the two remaining ½-inch13 UNC x 2½-inch capscrews after lubricatingwith Termalene grease. Torque all transducerhull window assembly capscrews to 125 inch-pounds in a diametrically opposed sequence.Heads should be flush or not more than 0.05inch below the exterior surface.

6-2.250 (DV) Report completion of the torqu-ing sequence to the LWC supervisor.

6-2.251 (LWC) Complete Block 7A of DataReport Form 1.

6-2.252 (LWC) Request ship’s force toremove all DANGER tags and return the sys-tem to operational status. Obtain bottomsounding at lowest transmit power possible.

6-2.253 (LWC) Record transmit power levelrequired to obtain bottom sounding in Block7C of Data Report Form 1.

CAUTION

6-37

S0600-AA-PRO-060

6-38

DATA REPORT FORM 1 Page 1 of 9

SHIP:

(name and hull number)

TASK DESCRIPTION: Transducer/transducer cable

(starboard or port)assembly waterborne fault isolation and replacement procedures for Trident I C4 Submarines.

EQUIPMENT COMPONENT: TR-143 Transducer/transducer cable assembly (TCA).

SYSTEM: SWS NAVIGATION

RELATED MAINTENANCE: NAVSEA OP 4429 (Vol. 3, Part 3) SMP 33-4604.

SUBSYSTEM: AN/BQN-3J Sonar sounding set.

MANPOWER REQUIREMENTS:

DIVERS: Dive station manned in accordance with the requirements of NAVSEA0994-LP-001-9010, U.S. Navy Diving Manual, Volume 1, Air Diving

SWS NAVIGATION REPAIR PERSONNEL (Lead Work Center, LWC, is Shop 67M):

Quantity Position

2 SWS Navigation Electroncis Technicians or civilianSystem Mechanics

1 SWS Electronics Systems Quality Assurance Inspector.

MANHOUR EXPENDITURES

Procedural Step Elapsed Time (hours) X No. of Personnel = Manhours Expended

Preliminary

Step 1

Step 2

Step 3

Step 4

Step 5

S0600-AA-PRO-060

6-39


Step 6

Step 7

Total Elapsed Time

Total Man-hours/Evolution

PRELIMINARY PROCEDURES

BLOCK A (6-2.17): Insulation Resistance Test (Transducer/TCA From Junction Box)

TEST POINTS ACCEPTABLE VALUE ACTUAL VALUE

Inner Shield to Outer Armor ≥ 1 Mohm Mohm

Center Conductor to Inner Shield ≥ 150 Mohms Mohms

Sat Unsat Initials

BLOCK B (6-2.19): Capacitance (Transducer/TCA From Junction Box)


Inner Shield to Center Conductor 9189 to 14376 pF pF

Sat Unsat Initials

PROCEDURAL STEP 1

BLOCK 1A (6-2.22d): System Tag Out

System Secured and Tagged Out Signature/Date

BLOCK 1B (6-2.27): Visual Inspection

Condition of Cable Connector Sat Unsat Initials

Condition of Hull Penetrator Sat Unsat Initials

S0600-AA-PRO-060

6-40


BLOCK 1C (6-2.28): Insulation Resistance Test (Figure 6-13) (Hull Penetrator/Internal Cabling)




Sat Unsat Initials

BLOCK 1D (6-2.29): Insulation Resistance Test (Transducer/TCA From Hull Penetrator)


Pin 2 to Outer Shield ≥ 1 Mohm Mohm

Pin 1 to Pin 2 ≥ 150 Mohms Mohms

Sat Unsat Initials

PROCEDURAL STEP 2

BLOCK 2A (6-2.39): Inspection of the Transducer Hull Window

Severe Gouges, Major Nicks Yes No

Biofouling FR 40 or Greater Yes No

Condition of Hull Window Sat Unsat Initials

BLOCK 2B (6-2.42): Inspection of the Transducer Window

Cuts, Cracks, Bubbles, or Other Defects Yes No

Separation Between Rubber and Steel Body Yes No

Condition of Transducer Rubber Face Sat Unsat Initials

BLOCK 2C (6-2.56): Inspection of TCA Transducer Connector and Transducer Receptacle

TCA Transducer Connector Sat Unsat

Transducer Receptacle Sat Unsat Initials

S0600-AA-PRO-060

6-41


Figure 6-13. Transducer Cable Assembly Transducer Receptacle Test Point Identification.

S0600-AA-PRO-060

6-42


BLOCK 2D (6-2.59): Insulation Resistance Test (Transducer)




Sat Unsat Initials

BLOCK 2E (6-2.70): Insulation Resistance Test (TCA)




Sat Unsat Initials

PROCEDURAL STEP 3

BLOCK 3A (6-2.90): Insulation Resistance Test (Transducer/TCA Dockside)




Sat Unsat Initials

BLOCK 3B (6-2.98): Insulation Resistance Test (Transducer/TCA Shipboard)




Sat Unsat Initials

S0600-AA-PRO-060

6-43

BLOCK 3C (6-2.107): Insulation Resistance Test (TCA/Transducer From Junction Box)



Center Connector to Inner Shield ≥ 150 Mohms Mohms

Sat Unsat Initials

BLOCK 3D (6-2.108d): Capacitance (Transducer/TCA From Junction Box)



Sat Unsat Initials

PROCEDURAL STEP 5

BLOCK 5A (6-2.125): Insulation Resistance Test (Transducer)

Transducer Serial No.




Sat Unsat Initials

BLOCK 5B (6-2.126d): Capacitance (Transducer)


Pin 1 to Pin 2 7210 to 12409 pF pF

Sat Unsat Initials

BLOCK 5C (6-2.127): Insulation Resistance Test (TCA)




S0600-AA-PRO-060

6-44


BLOCK 5D (6-2.135): Insulation Resistance Test (Transducer/TCA)




Sat Unsat Initials

BLOCK 5E (6-2.142): Insulation Transducer Face

Condition of Transducer Rubber Face

Sat Unsat Initials

BLOCK 5F (6-2.151): Bolt Torquing

Transducer Retaining Bolts Torqued to 250 foot-pounds. Initials

BLOCK 5G (6-2.160): Insulation Resistance Test (Transducer/TCA From Hull Penetrator)




Sat Unsat Initials

BLOCK 5H (6-2.168): Insulation Resistance Test (Transducer/TCA From Junction Box)




Sat Unsat Initials

BLOCK 5I (6-2.169d): Capacitance (From Junction Box)



S0600-AA-PRO-060

6-45


PROCEDURAL STEP 6

BLOCK 6A (6-2.189): TCA transducer Connector and Transducer Receptacle Inspection

Condition of TCA

Transducer Connector Sat Unsat Initials

Condition of Transducer Receptacle Sat Unsat Initials

BLOCK 6B (6-2.198): Insulation Resistance Test (TCA)




Sat Unsat Initials

BLOCK 6C (6-2.199): Insulation Resistance Test (Transducer)




Sat Unsat Initials

BLOCK 6D (6-2.200d): Capacitance (Transducer)



Sat Unsat Initials

BLOCK 6E (6-2.207): Insulation Resistance Test (Transducer/TCA)




S0600-AA-PRO-060

6-46


BLOCK 6F (6-2.216): Inspection of Transducer Face

Condition of Transducer Rubber Face Sat Unsat Initials

BLOCK 6G (6-2.225): Bolt Torquing


BLOCK 6H (6-2.230): Insulation Resistance Test (Transducer/TCA From Hull Penetrator)




Sat Unsat Initials

BLOCK 6I (6-2.238): Insulation Resistance Test (Transducer/TCA From Junction Box)



Center Connector to Inner Armor ≥ 150 Mohms Mohms

Sat Unsat Initials

BLOCK 6J (6-2.239d): Capacitance (Transducer/TCA From Junction Box)



Sat Unsat Initials

PROCEDURAL STEP 7

BLOCK 7A (6-2.251): Window Capscrew Torquing

Capscrews torqued to 125 inch-pounds. Initials

BLOCK 7B (6-2.254): Transmit Power Level

Sat Unsat Initials

S0600-AA-PRO-060


AN/BQN-25 (TR-143) TRANSDUCER/TRANSDUCER CABLEASSEMBLY IN TRIDENT II D5 SUBMARINES

6-3.1 GENERAL

6-3.2 This section provides detailed proce-dures that direct divers and other repair per-sonnel through the proper sequence of eventsto identify and isolate electrical faults in theAN/BQN-25 (TR-143) Transducer/transducercable assembly (TCA) and to repair or replacethe components as necessary to restore thesystem to operating condition. Figure 6-14 is aflow diagram of the procedures.



6-3.5 The results of the various tests andinspections conducted in the preliminary andprocedural steps must be recorded in theappropriate blocks of the Data Report Form 2.

6-3.6 Each test called out in the procedures isreferenced to a block in the Data Report Form.Each block in the form is identified by theapplicable procedural step number and a capi-tal letter within each procedural step. Blocks inthe preliminary procedures portion of DataReport Form 2 are identified by letters only.The paragraph number which requires the testis shown in parentheses after the block num-ber. Where applicable, acceptable test valuesare given in the test-result block. The entireData Report Form 2, pages 6-73 through 6-78,may be reproduced and maintained at thework site as a part of the quality control pack-age required by applicable regulations.


6-3.8 The drawings, technical manuals, hand-books and instructions listed in the followingparagraphs support the information containedin this chapter. Each document is unique insubject matter, therefore all documents listedmust be available for ready reference whileconducting underwater transducer/TCA repairprocedures.

6-3.9 DRAWINGS

a. NAVSEA 113-4695779, Foundation,AN/BQN-3

b. NAVSEA 101-4640634, NonPressureHull Frames 20, 21 and 22

c. NAVSEA 113-4642918, NavigationSonar System Installation Details,Foundation Depth Sounder Transduc-ers


a. SSP 0652-027-7, Trident II SWS Navi-gation Second Level MaintenanceManual, Vol. 3

b. NAVSEA 0900-LP-091-6010, Subma-rine Fastening Criteria for PressureContaining Systems

c. NAVSEA S0900-000-PRO-000/ MLDGMAN, Molding and Inspection Proce-dures for Fabricating Connector Plugsfor Submarine Outboard Cables

d. NAVSEA S9165-AC-HBK-010, Sub-marine Sonar Dome Handbook

6-47

S0600-AA-PRO-060

6-48

Figure 6-14. Flow Diagram of TR143 Transducer Fault Isolation and Replacement.

S0600-AA-PRO-060

e. NAVSEA S9086-CQ-STM-000/081,Waterborne Underwater Hull Cleaningof Navy Ships

f. CPG-1060, Procedures for Wiring,Molding, Inspecting and Testing ofPressure Proof Electrical Connectorsfor Trident Submarines

g. CPG-1145, Installation Procedures Tri-dent Outboard Electrical Harness andHull Penetrations

h. Standard Maintenance Procedure(SMP) 34-4404

i. Standard Maintenance Procedure(SMP) 34-4405

j. NAVSEA S9061-AA-MMA-010/SSBN/726CL, Ma in tenance andRepair Instructions, Pressure HullElectrical Penetrations and AssociatedOutboard Components

k. SSP 57650 (TRIDENT II), Trident SWSNavigation Subsystem Standard Oper-ating Procedures, Volume 1


a. OPNAVINST 5100.19A, Navy SafetyPrecautions for Forces Afloat




6-3.12 EQUIPMENT AND MATERIALREQUIREMENTS

6-3.13 SUPPORT AND TEST EQUIPMENT.

The equipment listed below is required to con-duct underwater transducer/TCA repairs. Theequipment should be assembled on site andtested or calibrated as required before thetask begins.

a. Insulation Test Set, Biddle2116OW/21963C

b. Chain Hoist, 1-ton capacity, BeebeInternational, Inc. Model C3H010 witha 30-foot load chain vice the standard10-foot chain (Beebe, 2724 6th Ave. S.,Seattle, WA 98314)

c. Transducer Lifting Device, EB Div S-Drawing (S-9747)

d. Impedance Bridge ELA 250 DE/1325

e. Hydraulic Impact Wrench with PowerUnit

f. Torque Wrenches, Click Type (1) 0-350 foot-pound capacity, (2) 0-100foot-pound capacity, (3) 0-150 inch-pound capacity

g. Pin Spanner Wrench, 1/8-inch dia. pin,1-1/4 to 3-inch capacity

h. Claw Spanner Wrench, 2 to 4-3/4 inchcapacity

i. 5/16", 3/8", and 1/2" Hex Key Sockets1/2" Drive (2 each)

j. Tap, bottom 1/4"-28 UNF

k. Screwdriver, wide blade

6-49

S0600-AA-PRO-060

l. Allen Wrench Set

m. Breaker Bar (3/4" Drive)

n. 3/4" hex key socket (3/4" Drive)

o. Transducer face protective cover.

6-3.14 MATERIALS

The materials listed in Table 6-2 must beobtained and positioned in the immediatevicinity of the job site before beginning under-water transducer/TCA repairs.


6-3.16 Before beginning the fault isolationand replacement procedures, conduct the fol-lowing tests to determine whether or not anelectrical fault exists.

6-3.17 (LWC) Conduct an insulation resis-tance test (SMP 34-4404) on the affected unit(starboard or port unit) and record the resultsin Block A on the Data Report Form 2.

6-3.18 (LWC) Review Navigational OperatingProcedure (paragraph 6-3.10 j), Data Sheet 7,from the ship’s records to determine whetherthe transducer was operable from the last at-sea data recorded.


6-3.20 (LWC) Isolate the fault to either theinternal cabling/hull penetrator or to the trans-ducer/TCA.

6-3.21 (LWC) Request ship’s force to securepower and tag-out the system.

a. (SHIP) De-energize circuit breakers54-59 in the 1 SFA switchboard.

b. (SHIP) Tag-out circuit breakers IAWSafety References (b) and (c).

c. (SHIP) Disconnect transducer bussbars.

d. (LWC) Complete Block 1A of the DataReport Form 2.

6-3.22 (LWC) Remove the topside sonar cav-ity deckplate at frame 22 utilizing a 7/32" allenwrench and attach a CAUTION tag that states:“DO NOT CLOSE SONAR CAVITY WITH-OUT CONTACTING LEAD WORK CEN-TER.”

6-3.23 (LWC) Pump port and starboard sonarcavities dry.

6-3.24 (LWC) Remove starboard sonar cavityinterior deck plate. Flush area around hullpenetrators with fresh water. Pump dry.

NOTE

The terminology for the compo-nents of the TCA, the trans-ducer, and the hull penetrator isgiven in Figure 6-15 and isused throughout these proce-dures.

6-3.25 (LWC) Disconnect the TCA from thehull penetrator on the affected unit (cable3752W01-EHF64 - Starboard, 3753W01-EHF65 - Port) using the spanner wrench.

6-3.26 (LWC) Visually inspect the TCA andthe hull penetrator for O-ring damage or leak-age indication. Record serial number of trans-ducer and the results of the inspection in Block1B of the Data Report Form 2.

6-3.27 (LWC) Conduct an insulation resis-tance test on the hull penetrator and the inter-nal cabling and record the results in Block 1Cof the Data Report Form 2.

6-50

S0600-AA-PRO-060

6-51

Figure 6-15. BQN-25/TR143 Transducer Cable Assembly Components.

S0600-AA-PRO-060

6-52



1 Termalene Grease 1 35 lb. pail NSN: 9G-9150-01-306-9167Item 7292-1ABel Ray Co. Inc. Farmingdale N.J. 07727

Note: Termalene can also be ordered directly from vendor in 14-1/2 oz cartridges, 12 per case

2 O-Ring (Hull Penetra-tor)

as needed NSN: 9Z-5330-00-543-3041P/N: M83248/1-220

3 Gasket (TCA Hull Con-nector)

as needed NSN: IH-5330-01-230-7691P/N: CPG 1027/1-031

4 O-Ring (Transducer Receptacle Face)


5 O-Ring (Interior Trans-ducer Receptacle)



7 Nylon line, 1/2” 200 feet NSN: 9Z-4020-01-225-0886

8 TCA Hull Connector Sealing Plug Modified with “D” Ring

2 M24231/3-020** (TR143 & TR333)

9 Hull Penetrator Cap 2 M24231/13-011** (TR143 & TR333)

10 TCA Transducer Con-nector Plug

2 MSS-K-DSR***NSN: 1HM-000-LL-TSC-9701

11 Transducer Recepta-cle Cap

2 MSS-K-DSP***NSN: 1HM-000-LL-TSC-9700

12 O-Ring Lubricant as needed MIL-C-21567 (G-697)NSN: 9G-6850-00-702-4297

13 TR 143 Hull Window Mounting Guide Studs with:

(a) Flat Washers

(b) Hex Nuts

2

2

2

5/8" - 11 UNC x 6" Manufac-tured from Threaded Steel RodNSN: 9Z-5306-00-903-35385/8" I.D. MS27183-21NSN: 9Z-5310-00-003-9174

5/8" - 11 UNCNSN: 9Z-5310-00-763-8920

S0600-AA-PRO-060

6-53



14 5/8" Eyebolts (weight-tested to 680 lbs. mini-mum)

8 5/8" - 11 UNC MS 51937-7NSN: 9Z-5306-00-017-0810


as needed Neoprene Channel, 1/2" Groove 96" LongNSN: 9G-9390-00-872-6393

16 Stainless Steel Band-ing Roll

as needed 1/2" Banding RollNSN: 9Q-8135-01-023-4126

17 Stainless Steel Buckle/Seal

as needed NSN: 9Z-5340-00-244-7325

18 BQN-3/TR143 Trans-ducer

as required NSN: 8P-5845-00-724-8307GE P/N 03538-7325806G2

19 Spare Transducer Mounting Bolts

8 Capscrews, Socket Head, NiCuAl, 1" - 8 UNC 3A x 3-3/4" FF-S-86 Type VI (Procure Locally)

20 Preterminated & Pre-tested Transducer Cable Assembly (TCA):

1

(a) Transducer Cable Assembly (includes TCA Transducer Con-nector)

NSN: 8P-6605-LL-S00-2983GE P/N 03538-77C716472P1

(b) O-Ring Transducer Receptacle face

NSN: 9Z-5330-00-729-4992P/N: M83248/1-027 [part of item 20 (a)]

(c) O-Ring Interior Transducer Receptacle

NSN: 9Z-5330-00-727-2637P/N: M83248/1-023 [part of item 20 (a)]

(d) TCA Hull Connector (Kit)

NSN: 1H-5935-01-243-2429P/N: CPG 1027/1-108****

(e) Flat Gasket NSN: 1H:5330-01-230-7691P/N: CPG 1027/1-031**** [part of item 20 (d)]

(f) O-Ring NSN: 9Z-5330-00-166-8411M83248/1-220 [part of item 20 (d)]

S0600-AA-PRO-060

6-54

Table 6-2. List of Materials - Continued


21 3/4 inch Galvanized Shackle (weight tested to 1,200 lbs)

1 NSN: 9Z-4030-00-185-0489

22 O-ring Removal Tool 1 Manufacture locally using stainless steel round bar, NSN: 9Z-9505-00-189-0574(see Figure 6-40)

23 Cable Clamp Screw 2 10-32 UNF-3A x 1" Long CRES Socket Head Cap-screw MS16996-14NSN: 9Z-5305-00-068-5408

24 60 ft. Wire Rope Pen-dent manufactured from:

(a) Wire Rope, CRES 3/8"

(b) Swage Sleeve

1

as needed

as needed

3/8" x 60" with Soft Eye Swaged Each End (Manufac-ture Locally and weight test to 1,200 lbs.)

NSN: 9Z-4010-00-222-4493

NSN: 9Z-4030-00-445-6210



27 TR143 Hull Window Screws

(a) Mtg Screws

(b) Lanyard Screws

20

2

5/8"-11 UNC-3A x 2-1/4" long,Spec FF-S-86 Type IV (see item 42 on Ref. 6-3.9a

3/8"-16 UNC-3A x 1-3/4" long,FF-S-92 Type 1 style 25 (item 8 on Ref. 6-3.9a)

S0600-AA-PRO-060


Item No. Description Qty. Part No.

28 TR143 Transducer Guide Rods with:

4 1.0"-8 UNC x 36" Manufac-tured from threaded steel rodNSN: 9Z-5306-00-903-3541

(a) Flat Washers 8 1.03" IDNSN: 9Z-5310-00-149-9141

(b) Hex Nuts 8 1.0"-8 UNCNSN: 9Z-5310-00-762-6248

** Part numbers beginning with “M” refer to D.G. O’Brien, Inc., P.O. Box 159, Seabrook, NH, 03874 (CAGE: 17476), part numbers (see first footnote).

*** Part numbers beginning with “MSS” refer to Brantner & Associates, 1240 Vernon Way, El Cajon, CA, 92020-1839 (CAGE: 15739), part numbers (see first footnote.)

**** Part numbers (P/N) beginning with “CPG” refer to General Dynamics, Electric Boat Divi-sion, 4 Eastern Point Rd., Groton, CT 06340-4947 (CAGE: 96169), part numbers (see first footnote).

NOTE

If ALL of the actual recordedvalues equal or exceed thespecified acceptable values,install the hull penetrator cap(item 9, Table 6-2) on the hullpenetrator and continue withparagraph 6-3.28. If ANY of therecorded values are less thanthe acceptable values, performcorrective maintenance on thehull penetrator and internalcabling and return to paragraph6-3.27.

6-3.28 (LWC) Conduct an insulation resis-tance test on the transducer/TCA and recordthe results in Block 1D of the Data ReportForm 2.

NOTE

If ALL of the actual recordedvalues equal or exceed thespecified acceptable values

discontinue these proceduresand continue with paragraph 6-2.99. (Disregard paragraph 6-2.106.) If ANY of the recordedvalues are less than theacceptable values, continuewith procedural step 2, para-graph 6-3.30.

6-3.29 PROCEDURAL STEP 2: FURTHERFAULT ISOLATION

6-3.30 (LWC) Remove the old gasket (item 3,Table 6-2) from the TCA hull connector andthe old O-ring from the TCA hull connectorplug (item 8, Table 6-2) (Figure 6-16).


CAUTION

6-55

S0600-AA-PRO-060

6-56

Figure 6-16. Connection of TR143 Transducer Cable Assembly Hull Connector to Hull Penetrator.

S0600-AA-PRO-060

NOTE

Lubricate all gaskets and O-rings with item 12, Table 6-2.

6-3.31 (LWC) Lubricate and install a newTCA hull connector gasket (item 3, Table 6-2).Lubricate and install a new hull penetrator O-ring (item 2, Table 6-2) on the TCA hull con-nector plug (item 8, Table 6-2)

6-3.32 (LWC) Install the TCA hull connectorplug (item 8, Table 6-2) into the TCA hull con-nector, align the keying and tighten hand-tight.

6-3.33 (LWC) Attach a 1/2-inch nylon line(item 7, Table 6-2) to the TCA hull connectorplug and secure the line inside the topsidesonar cavity.

6-3.34 (LWC) Remove the banding from thetransducer cable.

6-3.35 (DV) Notify ship when divers are readyto enter the water.


b. (DV) Remove the transducer hull win-dow (Figure 6-17) by removing the 205/8-inch capscrews from the trans-ducer hull window using a 3/8-inchAllen wrench.

NOTE

The use of a wide blade screw-driver may be necessary toremove the window from theopening.

A nylon lanyard is attached to apadeye inside the cavity and toa padeye on the transducer hullwindow to prevent loss of the

window during removal. Ensurethat the lanyard is in place andsecurely attached beforereleasing the window.

6-3.36 (DV) Inspect the transducer acoustichull window being particularly attentive to thepresence of the following abnormal conditions:

a. Severe gouges and major nicks (refer-ence NAVSEA S9165-AC-HBK-010,Submarine Sonar Dome Handbook,paragraph 6-3.10e)

b. Biofouling FR 40 or greater (referenceNAVSEA S9086-CQ-STM-000/081,Waterborne Underwater Hull Cleaningof Navy Ships, paragraph 6-3.10f)

c. Report the findings of the inspection tothe LWC supervisor.

6-3.37 (LWC) Complete Block 2A of the DataReport Form 2.

NOTE

If the diver’s report of inspec-tion findings indicates severedamage or biofouling, removethe window for repair and/orcleaning. If window must beremoved mark window as Portor Starboard.

6-3.38 (DV) Install 5/8"-11 UNC x 6" longthreaded rod (item 13, Table 6-2) in aft out-board window mounting hole and rotate win-dow on rod until it is out of the way. Install flatwasher and 5/8"-11 UNC nut (item 13, Table6-2) and tighten to hold window in place.

6-3.39 (DV) Inspect the transducer being par-ticularly attentive to the presence of the follow-ing abnormal conditions:

a. Cuts, cracks, bubbles or other defectson the rubber transducer acousticalwindow covering.

CAUTION

6-57

S0600-AA-PRO-060

6-58

Figure 6-17. Transducer Hull Acoustic Window.

S0600-AA-PRO-060

b. Any signs of separation between therubber transducer acoustical windowcovering and the stainless steel trans-ducer body.

c. Report the finding of the inspection tothe LWC supervisor.

6-3.40 (LWC) Complete Block 2B of the DataReport Form 2.

NOTE

The transducer/cable connec-tion is not waterborne demate-able. The transducer and cablemust be removed as an assem-bly.

NOTE

The transducer should bereplaced if signs of separationexist between the rubber trans-ducer acoustical window cover-ing and the stainless steeltransducer body.

6-3.41 PROCEDURAL STEP 3: REMOVALAND RELACEMENT OF A TRANSDUCERAND TRANSDUCER CABLE ASSEMBLY

6-3.42 (DV) Install four 5/8-inch weight testedeyebolts (item 14, Table 6-2) on the trans-ducer.

6-3.43 (DV) Attach the transducer lift-ing device to the four eyebolts(Figure 6-18).

Chain twist in the working chainloops of manual chain hoistsand chain falls will cause chainfailure. Chain twist in the work-ing chain loop occurs when thechain has an improper reevethrough the chain sprockets

OR (more often) the runningblock has flipped up andthrough any of the chain loops(see figure 6-20A)

All chain hoists and chain fallsissued with NAVSEA SUP-SALV Underwater Ship Hus-bandry equipment kits havebeen checked for chain twistand the chain hoist/fall hasbeen loosely two-blocked sothat the running block can notflip over into the working chainloops during shipment.



Hang the hoist from the tophook in a safe, accessible loca-tion. Tighten the hoist until lessthen one foot of separationexists between the hoist bodyand the running block. Theshort throw allows for mucheasier visual detection of twistin the individual chain reeves.Confirm that none of the chainlengths running from the work-ing chain sprocket to the run-ning chain sprocket (chainreeves) have any twist causedby the running block beingflipped over and through theloop of the chain. If ANY chaintwist is detected, flip the run-ning block back through thechain loop until the twist isremoved. If ANY twist can notbe removed by flipping the run-ning block, the hoist chainMUST be removed from thehoist body and re-reeve exer-

CAUTION

6-59

S0600-AA-PRO-060

cising care not to twist thechain during installation..

6-3.44 (DV) Attach a chain hoist to thewelded padeye on the sea chest overheadwithin the transducer foundation.

6-3.45 Connect the chain hoist lifting chain tothe transducer lifting device and remove allslack from the lifting chain (Figure 6-19).

Uncontrolled movement of the600-pound transducer mayresult in serious personal injuryor property damage. Do notloosen the transducer retainingbolts more than four turns untilit can be verified that the trans-ducer is totally supported bythe chain hoist.

6-3.46 (DV) Use a hydraulic impact wrench toloosen the eight 1-inch transducer retainingbolts no more than four turns (Figure 6-20).

a. Remove four of the mounting bolts andinstall threaded rod 36" long (item 28,Table 6-2)

b. Install flat washers and nuts such thatthe weight of the transducer is sup-ported by the threaded rods and chainhoist.

6-3.47 (DV) Remove the four remaining 1-inch transducer retaining bolts.

Uncontrolled movement of the600-pound transducer canresult in serious personal injuryor property damage. Ensurethat divers and diver’s umbili-cals are clear of the transducercavity and the transducer cavityedges while handling the trans-ducer.


Fig. 6-20A Typical Running Block Flip (one or two part chain reeve)

WARNING

WARNING

6-59A Change 1

S0600-AA-PRO-060


Change 1 6-59B

S0600-AA-PRO-060

6-60

Figure 6-18. Transducer Lifting Device Installed.

S0600-AA-PRO-060

6-61

Figure 6-19. Chain Hoist Rigged.

S0600-AA-PRO-060

6-62

Figure 6-20. TR-143 Transducer Retaining Bolts.

S0600-AA-PRO-060

6-3.49 (DV) By loosening the nuts and usingthe chain hoist, lower transducer until it is justbelow the hull.

6-3.50 (DV/LWC) Lower the cable down theconduit, loosely coil and secure to liftingdevice with cable ties. Tie off 1/2" nylon line insea chest.

6-3.51 (DV) Remove 1”-8 UNC nuts and thenslack off on the chain hoist to lower the trans-ducer far enough that the transducer liftingdevice clears the sea chest and is accessibleto attach a shackle (approximately 3 or 4 feet)(Figure 6-21).

6-3.52 (RIG) Attach a 60-foot wire rope pen-dant (item 24, Table 6-2) to the hook of theshore crane.

6-3.53 (RIG) Lower the 60-foot wire rope pen-dant into the water deep enough to allowdivers to attach it to the transducer liftingdevice.

6-3.54 (DV) Swim the lazy end of the 60-footwire rope pendant to the transducer andshackle the eye of the pendant to the trans-ducer lifting device.

6-3.55 (RIG/DV) Yard and stay the trans-ducer by alternately slacking the chain hoistand heaving in on the crane hook (Figure 6-22).


6-3.57 (RIG) Raise the transducer to pier andlower onto protective face plate that has beenplaced on a pallet. Carefully align protectiveface plate threaded mounting holes (4) withcorresponding transducer mounting holes astransducer is being lowered (Figure 6-23).

6-3.58 (RIG) Remove the 60-foot wire ropependant from the transducer lifting device.

6-3.59 (LWC) Uncoil the TCA from the top ofthe transducer.

6-3.60 (LWC) Loosen the Allen set screw(3/32-inch Allen recess) on the TCA trans-ducer connector, and disconnect the TCAfrom the transducer by turning the connectorring counterclockwise (Figure 6-24).

6-3.61 (LWC) Inspect the TCA transducerconnector and the transducer receptacle forcorrect O-ring seating and indications of flood-ing. Record the results of the inspection inBlock 3A of Data Report Form 2.

6-3.62 (LWC) Use a 5/32-inch Allen wrenchto remove the TCA cable clamp from the cableclamp support and remove the cable from thesupport.


6-3.64 (LWC) Conduct an insulation resis-tance test on the TCA and record the results inBlock 3B on Data Report Form 2.

6-3.65 (LWC) Conduct an insulation resis-tance test on the transducer and record theresults in Block 3C on Data Report Form 2.

6-3.66 (LWC) Measure the capacitance of thetransducer. Record the serial number of trans-ducer on Data Report Form 2.





NOTE

The results of the tests con-ducted in paragraphs 6-3.64

6-63

S0600-AA-PRO-060

6-64

Figure 6-21. Diver Operating Chain Hoist.

S0600-AA-PRO-060

6-65

Figure 6-22. Yard and Stay Rig.

S0600-AA-PRO-060

6-66

Figure 6-23. TR143 Transducer Protective Face Plate Installation.

S0600-AA-PRO-060

6-67

Figure 6-24. Connection of Transducer Cable Assembly Transducer Connector to Transducer Receptacle.

S0600-AA-PRO-060

through 6-3.66 will determinewhether the transducer or theTCA or both are defective. Dis-position failed components IAWparagraphs 6-3.67 - 6-3.72.After the defective compo-nent(s) have been replaced orrepaired, the tests in para-graphs 6-3.64 through 6-3.66should be conducted againuntil satisfactory results areachieved.


6-3.67 (LWC) Obtain TCA transducer con-nector plug (item 10, Table 6-2),

6-3.68 (LWC) Install the TCA transducer con-nector plug on the TCA transducer connector,align the key and tighten hand-tight.

6-3.69 (LWC) Obtain transducer receptaclecap (item 11, Table 6-2).

6-3.70 (LWC) Install the transducer recept-acle cap on the transducer receptacle, alignthe keying and tighten hand-tight.

6-3.71 (LWC) Take the failed TCA to therepair shop for problem isolation; repair if nec-essary; and retest.

6-3.72 (LWC) Inspect all connector surfaceson both the transducer and the cable toensure that they are clean, dry and free ofcontaminants.



6-3.75 (LWC) Attach the TCA transducer con-nector to the transducer receptacle, align thekey and tighten hand-tight.


NOTE


6-3.77 (LWC) Use a 5/32-inch Allen wrenchto remove the TCA cable clamp from the cableclamp support, align the cable in the supportand reattach the TCA cable clamp.

6-3.78 (LWC) Conduct an insulation resis-tance test and capacitance check on thereplacement transducer/TCA and record theresults in Block 3E of the Data Report Form 2.

NOTE

If the actual recorded valuesequal or exceed the specifiedacceptable values, continuewith these procedures at para-graph 6-3.80. If the actualrecorded values are less thanthe acceptable values, discon-nect the cable assembly fromthe transducer and return to theprocedural step at paragraph 6-3.64 for fault isolation and prob-lem resolution.


CAUTION

WARNING

6-68

S0600-AA-PRO-060

6-3.79 (LWC) Install four, 5/8-inch eyebolts(item 14, Table 6-2) on the transducer.




6-3.83 (LWC) Install the TCA hull connectorplug on the TCA hull connector, align the keyand tighten hand-tight.

6-3.84 (LWC) Coil the cable on top of thetransducer around the transducer lifting deviceand secure it to the transducer lifting devicewith nylon cable ties (Figure 6-24).

6-3.85 (RIG) Attach the 60-foot wire ropependant suspended from the shore cranehook to the transducer lifting device.

6-3.86 (RIG) Lift the transducer to a conve-nient height and remove the transducer pro-tective faceplate (refer to Figure 6-23).

6-3.87 (LWC) Inspect the transducer face andrecord the results of the inspection in Block 3Fof the Data Report Form 2.

NOTE

If the transducer is damaged,obtain a new transducer andreturn to paragraph 6-3.65.

Refer to Chain Hoist CAUTIONimmediately before paragraph6-3.44.

6-3.88 (RIG) Lower the transducer into thewater deep enough to allow divers to attach

the transducer cavity chain hoist-lifting chainto the transducer lifting device.


6-3.90 (RIG/DV) Yard and stay the trans-ducer to the transducer cavity by alternatelyslacking the crane hook and heaving on thechain hoist (refer to Figure 6-22).

6-3.91 (DV) Remove nylon ties holding cableto transducer lifting device and reattach 1/2"nylon line to cable pull cap D ring.

6-3.92 (DV/LWC) Pull new cable assemblythrough conduit.

6-3.93 (DV) Disconnect the 60-foot wire ropependant from the transducer lifting devicewhen the transducer is plumbed under thechain hoist. Rotate transducer such that cableabove transducer forms a lazy S. There is noother azimuth alignment requirement for trans-ducer.

Uncontrolled movement or the600-pound transducer mayresult in serious personal injuryor property damage. Ensurethat divers and divers’ umbili-cals are clear of the transducercavity and the transducer cavityedges while handling the trans-ducer.

Crushing or pinching the trans-ducer cable will damage thecable. Ensure that the cabledoes not become crushed orpinched between the trans-ducer and the transducer foun-dation.

CAUTION

WARNING

CAUTION

Change 1 6-69

S0600-AA-PRO-060

6-3.94 (DV) Take in on the transducer cavitychain hoist to lift the transducer into the cavityand approximately flush with the transducerfoundation. guide transducer over the four (4)guide rods. Guide transducer over the four (4)guide rods (refer to Figure 6-21).


6-3.96 (DV) Bolt the transducer to the founda-tion using the four 1-inch bolts. Remove thethreaded rods. Install the four (4) remainingmounting bolts.

NOTE


6-3.97 (DV) Torque the eight 1-inch bolts to250 foot-pounds, 25 foot-pounds.

6-3.98 (LWC) Complete Block 3G of the DataReport Form 2.

6-3.99 (DV) Remove the transducer cavitychain hoist, the transducer lifting device andthe eyebolts and return them to the surface.

Acute bend radii on the cablecan cause excessive stressand possible damage to thecable insulation. Maintain aminimum bend radius of 4inches while pulling the cable.

6-3.100 (LWC) Remove the TCA hull connec-tor sealing plug from the TCA hull connector.

6-3.101 (LWC) Conduct an insulation resis-tance test on the transducer/TCA and recordthe results in Block 3H of the Data ReportForm 2.

NOTE


6-3.102 (LWC) Remove the hull penetratorcap.



6-3.105 (LWC) Lubricate and install a new O-ring (item 2, Table 6-2) on the hull penetratorand a new gasket (item 3, Table 6-2) in theTCA hull connector.


6-3.107 (LWC) Use nylon cable ties to tempo-rarily secure the transducer cable outwardfrom the hull penetrator to the cable bracketsin the sonar cavity topside.

6-3.108 (DV) Coil the excess cable in a lazy Sabove the transducer.

NOTE


6-3.109 (LWC) Conduct an insulation resis-tance test (SMP 34-4404) on the trans-ducer/TCA from the junction box and recordthe results in Block 31 of the Data ReportForm 2.

CAUTION

6-70 Change 1

S0600-AA-PRO-060

NOTE



a. Set impedance bridge for 1000 Hz.

b. Connect inner shield to BRIDGE COM-MON.

c. Connect the center conductor of cableto BRIDGE HI.

d. Complete Block 3J of the Data ReportForm 2.

NOTE

If the actual recorded value iswithin the specified range ofacceptable values, continuewith paragraph 6-3.112. If theactual value is not within thespecified range of acceptablevalues, return to proceduralstep 2, paragraph 6-3.30, forfault isolation and problem res-olution.

6-3.111 PROCEDURAL STEP 4: CONFIGU-RATION RESTORATION

6-3.112 (LWC) Replace the nylon cable tiesin the sonar cavity with U-channel rubber andstainless steel banding (items 15 and 16,Table 6-2).

6-3.113 (LWC) Reinstall the interior deckplate of the sonar cavity.

6-3.114 (LWC) Inspect the sonar penetratorcavity to ensure removal of all material andtools.

6-3.115 (SHIP) Close out the cavity, removethe CAUTION tag and reinstall the hull deckplate.

6-3.116 (DV) Inspect the transducer cavity toensure removal of all material and tools.

Use of 5/8-inch 11 UNC x 2-1/4inch capscrews to pull the win-dow into place will result indamage to the window. Use the5/8-inch 11 UNC x 6-inch studsand washers (item 13, Table 6-2) to prevent damage.

6-3.117 (DV) Reinstall the transducer hullwindow using the two 5/8-inch-11 UNC x 6-inch studs (item 13, Table 6-2) to pull the win-dow into place.

6-3.118 (DV) Lubricate with Termalenegrease (item 1, Table 6-2) and install 18 5/8-inch 11 UNC x 2-1/4 inch capscrews in theremaining holes. Remove the previouslyinstalled 5/8-inch-11 UNC x 6-inch studs andreplace them with the two remaining 5/8-inch11 UNC x 2-1/4 inch capscrews after lubricat-ing with Termalene grease. Torque all trans-ducer hull window capscrews to 55 foot-pounds in a diametrically opposed sequence.Verify fairness of window to non-pressure hullto ensure window is fully seated on backingbar.

6-3.119 (DV) Report completion of the torqu-ing sequence and window fairness to the LWCsupervisor.

6-3.120 (LWC) Complete Block 4A of theData Report Form 2.

6-3.121 (LWC) Request ship’s force toremove all DANGER tags and return the sys-tem to operational status. Obtain bottomsounding at lowest transmit power possible.

6-3.122 (LWC) Record transmit power levelrequired to obtain bottom sounding in Block4B of the Data Report Form 2.

CAUTION

Change 1 6-71

S0600-AA-PRO-060

6-72

Figure 6-25. Cable Coiled on Transducer Lifting Device.

S0600-AA-PRO-060

6-73


SHIP: (name and hull number)

TASK DESCRIPTION: Transducer/transducer cable (starboard or port)assembly waterborne fault isolation and replacement procedures for Trident II D5 submarines.



RELATED MAINTENANCE: SMP 34-4404, SMP 34-4405

SUBSYSTEM: AN/BQN-25 Navigation Sonar System.


DIVERS: Dive station manned in accordance with the requirements of NAVSEA 0994-LP-001-9010, U.S. Navy Diving Manual, Volume 1, Air Diving

SWS NAVIGATION REPAIR PERSONNEL:

Quantity Position

2 SWS Navigation Electronics Technicians or civilianSystem Mechanics




Preliminary

Step 1

Step 2

Step 3

Step 4

S0600-AA-PRO-060

6-74


Total Elapsed Time



BLOCK A (6-3.17): Insulation Resistance Test (Transducer/TCA From Junction Box)




Sat Unsat Initials

PROCEDURAL STEP 1

Transducer Serial Number

BLOCK 1A (6-3.21d): System Tag Out





BLOCK 1C (6-3.28): Insulation Resistance Test (Figure 6-13) (Hull Penetrator/Internal Cable)




Sat Unsat Initials

S0600-AA-PRO-060

6-75


Figure 6-26. Transducer Cable Assembly Connector Test Point Identification

S0600-AA-PRO-060

6-76


BLOCK 1D (6-3.28): Insulation Resistance Test (Transducer/TCA From Hull Penetrator)




Sat Unsat Initials

PROCEDURAL STEP 2

BLOCK 2A (6-3.37): Inspection of the Transducer Hull Acoustic Window



Condition of Acoustic Window Sat Unsat Initials

BLOCK 2B (6-3.40): Inspection of the Transducer Rubber Face


Separation Between Rubber Face and Stainless Steel Body Yes No

Condition of Transducer Sat Unsat Initials

PROCEDURAL STEP 3

BLOCK 3A (6-3.61): Insulation of TCA Transducer Connector and Transducer Receptacle

TCA Transducer Connector Sat Unsat

Transducer Receptacle Sat Unsat Initials

BLOCK 3B (6-3.64): Insulation Resistance Test (TCA)




Sat Unsat Initials

S0600-AA-PRO-060

6-77


BLOCK 3C (6-3.65): Insulation Resistance Test (Transducer)




Sat Unsat Initials

BLOCK 3D (6-3.66): Capacitance (Transducer) Serial Number



Sat Unsat Initials

BLOCK 3E (6-3.79): Insulation Resistance and CapacitanceTest (Transducer/TCA)


Insulation Resistance



Capacitance


Sat Unsat Initials

BLOCK 3F (6-3.88): Insulation Transducer Face

Condition of Transducer Rubber Face

Sat Unsat Initials

BLOCK 3G (6-3.99): Bolt Torquing


BLOCK 3H (6-3.102): Insulation Resistance Test (Transducer/TCA in Ship)




Sat Unsat Initials

S0600-AA-PRO-060

BLOCK 3I (6-3.110): Insulation Resistance Test (Transducer/TCA From Junction Box)



Center Connector to Inner Shield ≥ 150 Mohms Mohms

Sat Unsat Initials

BLOCK 3J (6-3.111d): Capacitance (From Junction Box)



Sat Unsat Initials

PROCEDURAL STEP 4

BLOCK 4A (6-3.121): TR143 Acoustic Window Capscrew Torquing

Capscrews torqued to 55 ft-lbs and Window Fairness Initials

BLOCK 4B (6-3.123): Transmit Power Level

Sat Unsat Initials


6-78

S0600-AA-PRO-060


AN/BQN-25 (TR-333) HYDROPHONE/HYDROPHONE CABLE ASSEM-BLY AND HYDROPHONE MOUNTING INSERT IN

TRIDENT II D5 SUBMARINES

6-4.1 GENERAL

6-4.2 This section provides detailed proce-dures that direct divers and other repair per-sonnel through the proper sequence of eventsto identify and isolate faults in the AN/BQN-25(TR-333) hydrophone/hydrophone cableassembly and hydrophone mounting insertsand replace the components as necessary torestore the system to operating condition. Fig-ure 6-27 provides an overview of these com-ponents.




6-4.6 Each test called out in the procedures isreferenced to a block in the Data Report Form3. Each block in the form is identified by theapplicable procedural step number and a capi-tal letter within each procedural step. Blocks inthe preliminary procedures portion of DataReport Form are identified by letters only. Theparagraph number which requires the test isshown in parentheses after the block number.Where applicable, acceptable test values aregiven in the test-result block. The Data ReportForm 3 (pages 6-99 through 6-109) may bereproduced and maintained at the work site as

a part of the quality control package requiredby applicable regulations.


6-4.8 The drawings, technical manuals, hand-books and instructions listed in the followingparagraphs support the information containedin this chapter. Each document is unique insubject matter, therefore all documents listedmust be available for ready reference whileconducting underwater hydrophone repair pro-cedures.

6-4.9 DRAWINGS


b. NAVSEA 101-4640634, NonPressureHull Frames 20, 21, and 22

c. NAVSEA 113-4642918, NavigationSonar System Installation and Details,Foundation, Depth Sounder Trans-ducer


a. SP 0652-027-7, Trident II SWS Navi-gation Second Level MaintenanceManual, Volume 3


c. NAVSEA S0900-000-PRO-000/MLDGMAN, Molding and Inspection Proce-dures for Fabricating Connector Plugsfor Submarine Outboard Cables

6-79

S0600-AA-PRO-060

6-80

Figure 6-27. NSS Acoustic Windows.

S0600-AA-PRO-060








k. SSP 57650 (TRIDENT II), Trident SWSNavigation Subsystem Standard Oper-ating Procedures, Volume 1







6-4.13 SUPPORT AND TEST EQUIPMENT.

The equipment listed below is required to con-duct underwater hydrophone repairs. Theequipment should be assembled on site andtested or calibrated as required before thetask begins.


b. Impedance Bridge ELA 250 DE/1325

c. Hydraulic Impact Wrench with PowerUnit

d. Torque Wrenches, (1) 0-350 foot-pound capacity, (2) 0-100 foot-poundcapacity and (3) 0-150 inch-poundcapacity

e. Pin (1/8" dia.) Spanner Wrench, 1-1/4inch to 3-inch capacity

f. Claw Spanner Wrench 2 to 4-3/4- inchcapacity

g. Two each 5/16", 3/8", 1/2" Hex KeySocket (1/2" Drive)

h. Tap, bottom 1/4" 28 UNF

i. Screwdriver, wide blade

j. Allen Wrench Set

k. Breaker Bar (3/4" Drive)

l. 3/4" Hex Key Socket (3/4" Drive)

m. Hydrophone Removal/InstallationRods

n. Hydrophone Insert Removal Tool

6-81

S0600-AA-PRO-060

6-4.14 MATERIALS

The materials listed in Table 6-3 must beobtained and positioned in the immediatevicinity of the job site before beginning under-water hydrophone repairs.


6-4.16 (LWC) Confirm which hydro-phone/cable assembly (assemblies) is/aredefective by conducting an insulation resis-tance test (SMP 34-4405). Record results onData Report Form 3 Block A.


6-4.18 (LWC) Request ship’s force to securepower by deenergizing circuit breakers 54through 59 in 1SFA switchboard and tag outthe AN/BQN-25 system (paragraph 6-4.11band/or 6-4.11c). Record results on DataReport Form 3 Block 1A.

6-4.19 (SHIP) Remove the topside sonarpenetrator cavity cover plate at frame 22(paragraph 6-4.9b). Attach a CAUTION tagthat states “DO NOT CLOSE SONAR CAVITYWITHOUT CONTACTING THE LEAD WORKCENTER.”

6-4.20 (LWC) Pump sonar penetrator cavitydry. Flush area around the hull penetratorswith fresh water. Pump out resultant water.

NOTE

If multiple hydrophones requirereplacement, only one connec-tor may be disconnected at atime. This must be done toavoid reconnecting a hydro-phone cable to the incorrecthull penetrator.

6-4.21 (LWC) Utilizing Figure 6-28, identifyhydrophone cable to be replaced. Unbandcable from slack rack. Disconnect properhydrophone cable connector from hull pene-trator. Refer to Figures 6-28, 6-29 and 6-30.

6-4.22 (LWC) Visually inspect cable connec-tor and hull penetrator for damage or indica-tion of leakage. Record results on Data ReportForm 3 Block 1B.

Ensure inboard cable is discon-nected from preamp prior toaccomplishing paragraph 6-4.23.

6-4.23 (LWC) Conduct an insulation resis-tance test on the hull penetrator and inboardcable and record results on Data Report Form3 Block 1C.

NOTE

If ALL the actual recorded val-ues equal or exceed the speci-fied acceptable values, installthe hull penetrator cap (item 7,Table 6-3) on the hull penetra-tor and continue with para-graph 6-4.25. If ANY of therecorded values are less thanthe acceptable values, performcorrective maintenance on thehull penetrator and internalcabling and return to paragraph6-4.16.

6-4.24 PROCEDURAL STEP 2: HYDRO-PHONE REMOVAL

6-4.25 (LWC) Install connector plug with ‘D’Ring (item 6, Table 6-3) on cable.

6-4.26 (LWC) Remove banding from hydro-phone cable in sonar penetrator cavity.

CAUTION

6-82

S0600-AA-PRO-060

6-83

Table 6-3. List of Materials


1 Termalene Grease 1 35-lb. pail NSN: 9G-9150-01-306-9167Item 7292-1ABel Ray Co. Inc.Farmingdale N.J. 07727

Note: Termalene can also be ordered directly from vendor in 14-1/2oz cartridges, 12 per case

2 O-Ring (Hull Penetra-tor)


3 Gasket (Hydrophone Cable Hull Connector)

As needed NSN: IH-5330-01-230-7691P/N: CPG 1027/1-031


5 Nylon Line, 1/2" 200 feet NSN: 9Z-4020-01-225-0886

6 Cable Hull Connector Plug Modified with “D” Ring

2 M24231/3-020 ** (TR143 & TR333)

7 Hull Penetrator Cap 2 M24231/13-011 ** (TR143 & TR333)NSN: 9N 5935-00-070-9487

8 O-Ring Lubricant As needed MIL-C-21567 (G-697)NSN: 9G-6850-00-702-4297

9 Transducer Hull Win-dow Mounting Guide Studs with:

2 5/8" - 11 UNC x 6" Manufac-tured from Threaded Steel RodNSN: 9Z-5306-00-903-3538

(a) Flat Washers 2 5/8" I.D.NSN: 9Z-5310-00-003-9174

(b) Hex Nuts 2 5/8" - 11 UNCNSN: 9Z-5310-00-763-8920


As needed Neoprene Channel, 1/2"Groove 96" LongNSN: 9G-9390-00-872-6393

S0600-AA-PRO-060

6-84



11 Stainless Steel Banding Roll

As needed 1/2" Banding RollNSN: 9Q-8135-01-023-4126


As needed NSN: 9Z-5340-00-244-7325

13 1/2-inch Galvanized Shackle

1 McMaster Carr Cat No. 3558T48NSN: 9Z-4030-00-369-3894

14 O-Ring Removal Tool 1 Manufacture locally using stainless steel round bar,NSN: 9Z-9505-00-189-0574(See Figure 6-40)




(a) Mounting Screws 20 5/8" 11 UNC-3A x 2-1/4" long, Spec FF-S-86 Type IV (See Item 42, ref 6-4.9a)

(b) Lanyard Screws 2 3/8" 16UNC-3A x 1-1/2" long, FF-S-92 Type 1 style 25(See Item 8, ref 6-4.9a)

18 NSS Hull Window Screw

(a) 42 3/4" 10 UNC-3A x 3" Long (See Item 18, ref 6-4.9c)

(b) 25 1/2" 13 UNC-3A x 1-3/4"Long (See Item 21, ref 6-4.9c)

(c) 8 1/2" 13 UNC-3A x 3" Long (See Item 71, ref 6-4.9c)

(d) Lanyard Screws

(e) Lanyard Screw

2

1

3/4" 10 UNC-3A x 2.12" Long Slotted Head (See Item 8, ref 6-4.9)

1/2" 13 UNC-3A x 1.80" Long Slotted Head (See Item 88, ref 6-4.9c)

S0600-AA-PRO-060

6-85



19 Pre-terminated and Pre-tested TR333 Hydrophone Assembly:

As Req’d

(a) Hydrophone TR333 GE Part No. 53711-6029135-301NSN: 8P-6605-LW-501-0600

(b) Hydrophone Cable Assembly (cable with both ends connector-ized)

GE P/N 53711-6029166-303NSN: 8P-6605-LW-501-6357

(c) O-Ring, Cable Con-nector (Hydrophone End)

M83248/1-117NSN:9Z-5330-00-166-1071

(d) O-Ring, Hydro-phone Receptacle

M83248/1-114NSN: 9Z-5330-00-166-1063

20 Stainless Steel Brush 1/4" dia x 3" long

1 McMaster Carr Cat. No. 7230T31NSN: 10-9900-LE-T40-4408

21 Hydrophone Mounting Screws 1/2" 13 UNC-3A x 3-3/4" long Nicual - FF-5-86-T46

4 P/N: 60-16-1491(Item 42, ref 6-4.9.c)

22 TR333 Hydrophone Handle/Protective Cover Assembly including Brass Mount-ing Screws

16 Site-Supplied(GE P/N 43711-6029726-301)NSN: 8P-6605-LW-501-6655

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6-86



23 Pressure-Proof Cap, Hydrophone/Ther-mistor Receptacle

As Req’d M24217/10-001NSN: 1H-0029-LL-TA4-0226

24 Pressure Plug, Hydro-phone/Thermistor Cable

As Req’d M24217/9-001NSN: 9N-5935-01-325-2851

25 Hydrophone Array Plate Insert Installation Bolt, 1/2" 13 UNC x 3" long

1 Site SuppliedMS35311-119NSN:9Z-5305-00-226-9196

26 Hydrophone Array Mounting Insert

As Req’d EB P/N 36-71-0515/M/F( Item 36, ref 6-4.9c)

27 All-Thread 1/2" 13 UNC x 36" long with:

2 Site SuppliedNSN:9Z-5306-00-903-3537

(a) Flat Washers 4 MS27183-17NSN:9Z-5310-00-807-5997

(b) Hex Nuts 4 NSN:9Z-5310-00-260-7877

* Commercial and Government Entity (CAGE) codes replaced Federal Supply Codes for Manufacturers (FSCM) in May 1986. The code numbers were not changed; only the names of the codes changed.

** Part numbers beginning with “M” refer to D.G. O’Brien, Inc., P.O. Box 159, Seabrook, NH 03874 (CAGE: 17476), part numbers (see first footnote).

*** Part numbers beginning with “MSS” refer to Brantner & Associates, 1240 Vernon Way, El Cajon, CA 92020-1839 (CAGE: 15739), part numbers (see first footnote.)


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6-87

Figure 6-28. Sonar External Hull Fitting (EHF) Arrangement.

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6-88

Figure 6-29. NSS Conduit Locations Sonar Penetrator Cavity.

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6-89

Figure 6-30. NSS Interconnection Block Diagram.

S0600-AA-PRO-060

NOTE

The TR143 acoustic windowswill require removal accordingto the following Table. The NSSwindow must be removed in allcases.

NOTE

It may be necessary to utilize awide blade screwdriver toremove the window(s) from theopening.

6-4.27 (DV) Notify ship when divers are readyto enter the water.


b. (DV) Remove applicable TR143 win-dow(s) by loosening and removing the20 5/8-inch 11 UNC capscrews usinga 3/8-inch hex socket. Secure windowto hull by rotat ing it outboard andinstalling 5/8-inch 11 UNC x 6-inch All-Thread flat washer and nut (item 9,Table 6-3).

To avoid rounding of screwsocket head, ensure that hexsocket is fully seated in screwhead.

Do not use hydraulic impactwrench to remove windowmounting screws.

Prior to window removal verifylanyards are in good condition.

6-4.28 (DV) Remove NSS acoustic window(Figure 6-31) as follows:

a. Remove all capscrews in the centersupport using 5/16-inch and 1/2-inchhex sockets.

b. Remove the 3/4-inch 10 UNC cap-screws on the port and starboardedges of the window using 1/2-inch hexsocket.

c. Remove all but the forward center andaft center 1/2-inch 13 UNC capscrewsusing 5/16-inch hex socket.

d. Slowly loosen and remove the remain-ing 1/2-inch 13 UNC screws and allowwindow to hang on the three lanyards(Figure 6-32).

e. Install 1/2-inch 13 UNC x 36 inches AllThread (item 27, Table 6-3) at two loca-tions, one on forward centerline andone on centerline aft. Install nut and flatwasher above the window and flatwasher and nut below the window.

f. Tighten nuts until weight of window issupported on All-Thread.

When divers are directly under-neath or in the NSS seachest,

Hydrophone No. Window

1-3 or 11-6 Port TR143 window

5-8 Starboard TR143 window

4, 9 or 10 Port & Starboard TR143 windows

CAUTION

CAUTION

CAUTION

CAUTION

6-90

S0600-AA-PRO-060

6-91

Figure 6-31. NSS Acoustic Window Mounting Detail.

S0600-AA-PRO-060

Figure 6-32. NSS Window Lanyards.

air bubbles force water upvents and conduits in sonarpenetrator cavity. Ensure hullpenetrators remain covered atall times to preclude moisturefrom entering hull penetrator.

6-4.29 (DV) Visually inspect entire windowbeing particularly attentive to the presence ofthe following abnormal conditions:

a. Severe gouges and major nicks (refer-ence NAVSEA S9165-AC-HBK-101,Submarine Sonar Dome Handbook,paragraph 6-4.10d).

b. Biofouling FR40 or greater (referenceNAVSEA S9086-CQ-STM-000/081,Waterborne Underwater Hull Cleaningof Navy Ships, paragraph 6-4.10e).


6-4.30 (LWC) Complete Data Report Form 3Block 2A.

NOTE

If the diver’s report of inspec-tion findings indicates severedamage or biofouling, removethe window using a crane forrepair and/or cleaning.

6-92

S0600-AA-PRO-060

6-4.31 (DV) Visually inspect entire sea chestfor loose tiles, excessive rust, etc. Visuallyinspect all hydrophone faces being particularlyattentive to the presence of the followingabnormal conditions:

a. Cuts, cracks, bubbles or other defectson the rubber hydrophone acousticalwindow covering.

b. Any signs of separation between therubber hydrophone acoustical windowcovering and the stainless steel hydro-phone body.

Figure 6-33. Hydrophone A

c. Report findings of the inspection to theLWC supervisor.

6-4.32 (LWC) Complete Data Report Form 3Block 2B.

NOTE

Hydrophone(s) (refer to Figure6-33) should be replaced if anydefects are discovered.

6-4.33 (DV) Attach hydrophone protectivecover (item 22, Table 6-3) as follows:

6-93

rrangement (Looking Up).

S0600-AA-PRO-060

a. Clean out four 1/4-inch 28 UNF tappedholes in hydrophone bottom flange with1/4-inch diameter by 3-inch long stain-less steel spiral-type wire brush (item20, Table 6-3).

NOTE

Remove stainless steel screwsprior to cleaning threads.

b. Chase the tapped hole threads todepth of 3/4-inch from flange bottomsurface with 1/4-inch 28 UNF bottom-ing tap (paragraph 6-3.13j).

NOTE

Tapped hole has 0.273 inchnominal diameter by 0.25 inchdeep counterbore starting atflange bottom surface. Threadsstart at base of counterbore.

c. Clean tapped holes again with wirebrush. Do not use solvent or other oilbase cleaners.

d. Lubricate brass cover screws with asmall amount of Termalene grease(Item 1 Table 6-3).

Do not allow Termalene greaseor any foreign substance tocontact hydrophone faces.

e. Install hydrophone protective han-dle/cover and tighten bolts until snug.

Ensure wrench is fully seated inscrew to preclude rounding ofthe socket on the hydrophonemounting screws.

6-4.34 (DV) Loosen and remove two diago-nally opposed hydrophone mounting screwsusing 3/8-inch hex socket.

6-4.35 (DV) Insert two hydrophoneremoval/reinstallation rods (paragraph 6-4.13m) and clamp vise-grips to the rodsapproximately 1/2-inch below hydrophone.

6-4.36 (DV) Loosen and remove remainingtwo mounting screws.

6-4.37 (DV) Attach 1/2-inch shackle (item 13,Table 6-3) to padeye directly over hydrophoneto be replaced.

6-4.38 (DV) Install 1/2-inch nylon line (item 5,Table 6-3) through the shackle in the over-head and attach it to the two handles on theprotective cover after lowering hydrophoneenough to run the 1/2-inch nylon line throughthe hole in the array bedplate. The line shouldform a bridle to support the hydrophone in alevel condition. Using vise-grips, lower thehydrophone until its weight can be supportedby the 1/2-inch nylon line.

6-4.39 (LWC/DV) Lower the cable down theconduit as the hydrophone is lowered.

6-4.40 (DV) Remove the vise-grips.

Hydrophone weighs 70 lbs (inair)

6-4.41 (DV) Lower the hydrophone using the1/2-inch line and attach it to a line from thepier. Guide the cable out of the conduit andcoil. Secure the cable to the line from the pierusing nylon cable ties. Disconnect the 1/2-inchline attached to the cable pull cap ‘D’ ring andtie it off in the sea chest.

6-4.42 (DV/LWC) Disconnect the 1/2-inch lineand lift the hydrophone/cable assembly out ofthe water.

CAUTION

CAUTION

CAUTION

6-94

S0600-AA-PRO-060

6-4.43 (LWC) Land the hydrophone on thedock, handgrips down.

6-4.44 PROCEDURAL STEP 3 HYDRO-PHONE MOUNTING INSERT INSPECTIONAND REPLACEMENT

6-4.45 (DV) Visually inspect hydrophonemounting inserts (quantity 4) for scratches,nicks or signs that inserts are loose or dam-aged. Record results on Data Report Form 3Block 3A.

6-4.46 (DV) If insert is loose or significantlydamaged remove it using insert removal tool(paragraph 6-4.13n).

6-4.47 (DV) Carefully install new insert (item26, Table 6-3) with same shoulder thickness(.0005 inch) using a 1/2-inch bolt (item 25,Table 6-3) threaded into mounting nut.

6-4.48 PROCEDURAL STEP 4 HYDRO-PHONE/HYDROPHONE CABLE FAILUREISOLATION

6-4.49 (LWC) Disconnect cable from hydro-phone and inspect connector and hydrophonereceptacle for signs of leakage or damage.Record results on Data Report Form 3 Block4A.

6-4.50 (LWC) If all test results of SMP 34-4405 were satisfactory except for hydrophoneimpedance, the hydrophone is defective. Pro-ceed to paragraph 6-4.53. If insulation testresults of SMP 34-4405 were unsatisfactory,proceed to paragraph 6-4.52.

6-4.51 (LWC) Perform insulation resistancecheck (IAW Ref F) of hydrophone and cable.Record results on Data Report Form 3 Block4B.

NOTE

Insulation resistance readingsof cable/hydrophone below 10meg-ohms is unsatisfactory forcable or hydrophone. Replace

cable and/or hydrophone ifmegger readings are below 10meg-ohms.

6-4.52 (LWC) If hydrophone is deemed satis-factory and the cable is below 10 meg-ohms,connect new cable and reinstall IAW this pro-cedure.

6-4.53 (LWC) If hydrophone is defective,replace with new hydrotested hydrophone andcable assembly and install IAW this proce-dure. Record serial number of replacementhydrophone on Data Report Form 3. If oldcable meets retest requirements, retain forlater hydrostatic testing. Return old cable tostock if it passes hydrostatic test.

6-4.54 PROCEDURAL STEP 5 HYDRO-PHONE AND CABLE ASSEMBLY REIN-STALLATION

Acute bend radii in the cablecan cause excessive stressand possible damage to cableinsulation. Maintain a minimumbend radius of 4 inches whilepulling the cable.

6-4.55 (LWC) Ensure pull cap (item 6, Table6-3) with new gasket assembly is installed onhull connector end of cable. Loosely coil cableand secure with nylon cable ties.

6-4.56 (LWC) Attach 1/2-inch line to thehydrophone cable and lower hydrophone andcable into the water.

6-4.57 (DV) Connect the 1/2-inch nylon linerun through the padeye to the hydrophonecover handles, take up the slack and discon-nect dockside line.

6-4.58 (DV) Connect the 1/2-inch nylon cablepull line to hull connector pull cap ‘D’ ring.

6-4.59 (LWC) Pull the cable up into the con-duit.

CAUTION

6-95

S0600-AA-PRO-060

6-4.60 (DV) Using the 1/2-inch line, raise thehydrophone until two vise-grips can beattached to the hydrophone removal/installa-tion rods. Disconnect line.

6-4.61 (DV) Raise the hydrophone ensuringthat the cable is not kinked or allowed to bepinched between the hydrophone and arraybedplate.

6-4.62 (DV) Lubricate with Termalene grease(item 1, Table 6-3) and install two hydrophonemounting screws and tighten.

6-4.63 (DV) Remove the two hydrophoneremoval/reinstallation rods and lubricate theremaining two tactical screws with Termalenegrease and install.

6-4.64 (DV) Torque the four hydrophonemounting screws to 45 5 ft-lbs over runningtorque. Record results on Data Report Form 3Block 5A.

6-4.65 (DV) Install nylon cable ties in seachest as required to preclude cable move-ment. The quantity of cable ties should beminimized to allow for future removal ofcables.

6-4.66 (LWC) Remove pressure proof capfrom hull penetrator and pull cap from cableand clean with cotton swabs and alcohol.Lubricate with silicone grease (item 8, Table 6-3) and replace gasket (item 3, Table 6-3) inhull connector and O-ring (item 2, Table 6-3)in hull penetrator.

6-4.67 (LWC) Attach hull connector to hullpenetrator and tighten with claw-type spannerwrench.

6-4.68 (LWC/SHIP) Measure the insulationresistance and impedance of new hydrophoneand cable from the preamplifier in the SonarEquipment Space per SMP 34-4405. Recordresults on Data Report Form 3 Block 5B.

a. If satisfactory, reband cable into wire-way in sonar penetrator cavity. Ensure

that 4-inch minimum bend radius is notexceeded.

b. If unsatisfactory, repeat paragraphs 6-4.34 through 6-4.68.

6-4.69 (DV) Remove protective cover fromhydrophone and forward to local UNISYS rep-resentative.

6-4.70 (DV) Inspect sea chest for tools anddebris.

During all torquing operations,ensure hex socket is fullyseated in screw socket to avoidrounding of socket head.

6-4.71 (LWC) Lubricate all NSS windowmounting screws with Termalene grease priorto reinstallation. Mounting screws requirelubrication on the underside of the screw headin addition to the threads.

NOTE

A flotation device may berequired to facilitate reinstalla-tion of NSS window.

6-4.72 (DV) Reinstall the NSS window.6-3.121.

a. If the lanyards were disconnected fromthe window re-attach fwd lanyards firstthen raise window into place such thataft lanyard can be reconnected (Referto Figure 6-33). Verify that the lanyardpadeyes are not rotated such that theywould interfere with window seatingagainst backing bars.

b. Using the 1/2-inch “All-Thread”, wash-ers, and hex nuts, raise window intoopening. Install four capscrews, two inthe forward ed and two in the aft end ofthe window.

CAUTION

6-96

S0600-AA-PRO-060

c. Snug the four capscrews to bring themiddle of the window into contact withthe fwd and aft backing bars.

d. Remove the All-Thread and install theremaining capscrews working from themiddle of the window towards theedges.

e. Lubricate with Termalene grease andinstall twenty capscrews (item 18a and18c, Table 6-3) in the center support.Torque the twelve 3/4-inch screws to40 + 5 ft-lbs over running torque andthe eight 1/2-inch screws to 25 + 5 ft-lbs over running torque.

f. Working outboard from the middle ofthe window, torque the twenty five 1/2-

inch - 13 UNC capscrews on for-ward/aft edges to 25 + 5 ft-lbs over run-ning torque.

g. Torque the thirty 3/4-inch - 10 UNCcapscrews (item 18a, Table 6-3) alongport and starboard edges of window to40 + 5 ft-lbs over running torque.

6-4.74 (DV) Verify that all windows are fair toadjacent non-pressure hull IAW reference (a)and (b). Record results on Data Report Form 3Block 5C.

6-4.75 (LWC) Request ship’s force to removeall DANGER tags and return the system tooperational status. Record the results on DataReport Form 3 Block 5D.

6-97

S0600-AA-PRO-060

6-98

S0600-AA-PRO-060

6-99



TASK DESCRIPTION: Hydrophone/hydrophone cable (Hydrophone Number)assembly waterborne fault isolation and replacement procedures for Trident II D5 submarines.



RELATED MAINTENANCE: SMP 34-4404, SMP 34-4405




SWS NAVIGATION REPAIR PERSONNEL:

Quantity Position

2 SWS Navigation Electronics Technicians or civilian System Mechanics




Preliminary

Step 1

Step 2

Step 3

Step 4

S0600-AA-PRO-060

6-100


Step 5

Total Elapsed Time



BLOCK A (6-4.16): Insulation Resistance Test (From Preamp) (SMP 34-4405)


Pin A/B to Ground ≥ 1 Mohm Mohm

Sat Unsat Initials

PROCEDURAL STEP 1

BLOCK 1A (6-4.18): System Tag Out System Secured and Tagged Out Signature/Date




BLOCK 1C (6-4.23): Insulation Resistance Test (Inboard Cable/Penetrator)


Pin 2 to Ground ≥ 1 Mohm Mohm

Pin 1 to Ground ≥ 1 Mohm Mohm

Sat Unsat Initials

S0600-AA-PRO-060

6-101


Figure 6-34. Hydrophone/Cable Test Point Identification.

S0600-AA-PRO-060

6-102


PROCEDURAL STEP 2

BLOCK 2A (6-4.30): Inspection of the NSS Hull Window(s)



Condition of Hull Window(s) Sat Unsat Initials

BLOCK 2B (6-4.32): Inspection of Sea Chest and Hydrophone Acoustic Window


Separation Between Rubber and Steel Hydrophone Body Yes No

Condition of Sea Chest Sat Unsat

Condition of Hydrophone Acoustic Window Sat Unsat Initials

PROCEDURAL STEP 3

BLOCK 3A (6-4.45): Insulation of hydrophone mounting inserts

Condition of mounting inserts Sat Unsat Initials

PROCEDURAL STEP 4

BLOCK 4A (6-4.49):Hydrophone Cable Connector and Hydrophone Receptacle Inspection

Condition of Hydrophone Cable Connector Sat Unsat Initials

Condition of Hydrophone Receptacle Sat Unsat Initials

S0600-AA-PRO-060

6-103


BLOCK 4B (6-4.51): Insulation Resistance Test (Hydrophone cable)


Pin 2 to Outer Shield ≥ 100 Mohms Mohms


Sat Unsat Initials

BLOCK 4C (6-4.52): Insulation Resistance Test (Hydrophone)


Pin A/B to Ground (receptacle body) ≥ 100 Mohms Mohms

Sat Unsat Initials

PROCEDURAL STEP 5

BLOCK 5A (6-4.64): Hydrophone Mounting Screw Torquing

Mounting screws torqued to 45 ft-lbs Initials

BLOCK 5B (6-4.68): Insulation Resistance Test (Hydrophone/Cable Assembly)


Pin A/B to Ground ≥ 100 Mohms Mohms

BLOCK 5C (6-4.74): Window Bolt torquing

Transducer and NSS windows installed and bolts torqued Initials

BLOCK 5D (6-4.75): Window Fairness

Check window fairness Sat Unsat Initials

S0600-AA-PRO-060

6-104


S0600-AA-PRO-060


AN/BQN-25 THERMISTOR IN TRIDENT II D5 SUBMARINES

6-5.1 GENERAL

6-5.2 This section provides detailed proce-dures that direct divers and other repair per-sonnel through the proper sequence of eventsto identify and isolate electrical faults in theAN/BQN-25 Thermistors and to replace thecomponents as necessary to restore the sys-tem to operating condition.




6-5.6 Each test called out in the procedures isreferenced to a block in the Data Report Form4. Each block in the form is identified by theapplicable procedural step number and a capi-tal letter within each procedural step. Blocks inthe preliminary procedures portion of DataReport Form are identified by letters only. Theparagraph number which requires the test isshown in parentheses after the block number.Where applicable, acceptable test values aregiven in the test-result block. The Data ReportForm 4, pages 6-117 through 6-120, may bereproduced and maintained at the work site asa part of the quality control package requiredby applicable regulations.


6-5.8 The drawings, technical manuals, hand-books and instructions listed in the followingparagraphs support the information containedin this chapter. Each document is unique insubject matter, therefore all documents listedmust be available for ready reference whileconducting underwater thermistor replace-ment procedures.

6-5.9 DRAWINGS


b. NAVSEA 101-4640634, NonPressureHull Frames 20, 21, and 22

c. NAVSEA 113-4642918, NavigationSonar System Installation and Details,Foundation, Depth Sounder Trans-ducer


a. SSP 0652-027-7, Trident II SWS Navi-gation Second Level MaintenanceManual, Vol. 3


c. NAVSEA S0900-000-PRO-000/MLDGMAN, Molding and Inspection Proce-dures for Fabricating Connector Plugsfor Submarine Outboard Cables


6-105

S0600-AA-PRO-060







k. SSP 57650 (TRIDENT II), Trident SWSNavigation Subsystem Standard Op-erating Procedures, Volume 1







6-5.13 SUPPORT AND TEST EQUIPMENT

The equipment listed below is required to con-duct underwater thermistor repairs. The equip-ment should be assembled onsite and testedor calibrated as required before the taskbegins.


b. Impedance Bridge ELA 250 DE/ 1325

c. Torque Wrench, 0-100 foot-poundcapacity

d. Pin (1/8" dia.) Spanner Wrench, 1-1/4to 3-inch capacity

e. Claw Spanner Wrench 2 to 4-3/4 inchcapacity

f. 2-3/8" Hex Key Socket (1/2" Drive)

g. Screwdriver, wide blade

h. Allen Wrench Set

6-5.14 MATERIALS

The materials listed in Table 6-4 must beobtained and positioned in the immediatevicinity of the job site before beginning under-water thermistor replacement.


6-5.16 (LWC) Confirm which thermistor isdefective by conducting the applicable portionof SMP 34-4405. Record results on DataReport Form 4 Block A.

6-106

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6-107



1 Termalene Grease 1 35 lb. pail NSN: 9G-9150-01-306-9167Item 7291-1ABel Ray Co. Inc.Farmingdale N.J. 07727

Note: Termalene can also be ordered directly from vendor in 14-1/2 oz cartridges, 12 per case


3 Nylon line, 1/2" 200 feet NSN: 9Z-4020-01-225-0886

4 TCA Hull Connector Plug Modified with “D” Ring

2 M24231/1-020 ** BQN - 25 Thermistor

5 Hull Penetrator 2 M24231/12-011 ** (BQN 25 Thermistor)NSN: 9N-5935-00-070-9487

6 O-Ring Lubricant As needed MIL-C-21567NSN: 9G-6850-00-702-4287

7 Transducer Hull Window Mounting Guide Studs with:

2 5/8" 11 UNC x 6 inch Manufac-tured from Threaded Steel RodNSN: 9Z-5306-00-903-3538

(a) Flat Washers 2 5/8" I.D. MS27183-21NSN: 9Z-5310-00-003-9174

(b) Hex Nuts 2 5/8" 11 UNCNSN: 9Z-5310-00-763-8920


As needed Neoprene Channel, 1/2" Groove 96" LongNSN: 9G-9390-00-872-6393

9 Stainless Steel Band-ing Roll

As needed 1/2" Banding RollNSN: 9Q-8135-01-023-4126


As needed NSN: 9Z-5340-00-244-7325

11 O-Ring Removal Tool 1 Manufacture locally using stainless steel round bar, NSN: 9Z-9505-00-189-0574(See Figure 6-40)

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6-108

Table 6-4. List of Materials. - Continued.





(a) Mounting Screws 20 .625" UNC-3A x 2.25" long, Spec FF-S-86 Type IV(See Item 42 on ref 6-5.9a)

(b) Lanyard Screws 2 .375" 16UNC-3A x 1 3/4" long, FF-S-92 Type 1 style 25(See Item 8 on ref 6-5.9a) modified.

15 Pre-terminated and Pretested BQN-25 Thermistor

2

(a) Thermistor, BQN-25

GE P/N 53711-6029426-301NSN: 8P-6605-LW-501-0630

(b) Thermistor Cable (both ends connector-ized)

GE P/N 53711-6029166-304NSN: 8P-6605-LW-501-6358

(c) O-Ring 1) M83248/1-117(For Ther-mistor Cable Plug)NSN: 9Z-5330-00-166-10712) M83248/1-117 (Thermistor Receptacle)NSN: 9Z-5330-00-166-1063

16 Pressure Proof Cap, Hydrophone/Ther-mistor Receptacle

As Req’d M24217/10-001NSN: 1H-0029-LL-TA4-0226

17 Pressure Proof Plug, Hydrophone/Thermistor Cable

As Req’d M24217/9-001NSN: 9N-5935-01-325-2851

18 Thermistor Hull Con-nector Gasket

2 EBCN: 06-36-0250CPG 1027/1-030NSN: 1H-5330-01-230-7690

S0600-AA-PRO-060

Table 6-4. List of Materials Continued.


19 Thermistor Hull Pene-trator “O” Ring

2 EBCN: 54-66-5215M83248/1-215NSN: 9Z-5330-00-166-8404

20 Thermistor Foundation Mounting Screws

2 Screw, Cap - .500 -13 UNC 3A x 1.75" long (Sch Cyl) FF-S-86 Type 6 NICU

21 Thermistor Mounting Screws

6 Screw, Cap - .190 -32 UNF 3A x 1.00" long (Sch Cyl) -NICUFF-S-86 TY6(See Items 33/35 ref 6-5.9c)

* Commercial and Government Entity (CAGE) codes replaced Federal Supply Codes for Manufacturers (FSCM) in May 1986. The code numbers were not changed; only the name of the codes changed.

** Part numbers beginning with “M” refer to D.G. O’Brien, Inc., P.O. Box 159, Seabrook, NH, 03874 (CAGE: 17476), part numbers (see first footnote).

*** Part numbers beginning with “MSS” refer to Brantner & Associates, 1240 Vernon Way, El Cajon, CA, 92020-1839 (CAGE: 15739), part numbers (see first footnote.)



6-5.18 (LWC) Request ship’s force to securepower by de-energizing circuit breakers 54through 59 in 1SFA switchboard and tag outthe AN/BQN-25 system (reference paragraph6-5.11b and/or 6-5.11c). Disconnect appropri-ate cable in preamplifier. Record results onData Report Form 4 Block 1A.

6-5.19 (SHIP) Remove the topside sonarpenetrator cavity cover plate at frame 22(paragraph 6-5.9b). Attach a CAUTION tagthat states “DO NOT CLOSE SONAR CAVITYWITHOUT CONTACTING LEAD WORK CEN-TER.”

6-5.20 (LWC) Pump sonar penetrator cavitydry. Flush area around the hull penetrator withfresh water. Pump out resultant water.

6-5.21 (LWC) Disconnect thermistor cableconnector from hull penetrator (Figures 6-35,6-36 and 6-37).

6-5.22 (LWC) Visually inspect cable connec-tor and hull penetrator for damage or indica-tion of leakage. Record results on Data ReportForm 4 Block 1B.

6-5.23 (LWC) Perform insulation resistancetest on the hull penetrator and inboard cabling.If hull penetrator is satisfactory, install hullpenetrator sealing cap (item 5, Table 6-4) onhull penetrator and continue with procedure. Ifnot, discontinue procedure, disconnect

6-109

S0600-AA-PRO-060

inboard cabling and repeat insulation resis-tance test on hull penetrator. If satisfactory,perform corrective maintenance on inboardcabling; otherwise perform corrective mainte-nance on hull penetrator. Record results onData Report Form 4 Block 1C.

6-5.24 (LWC) Perform insulation resistancetest on thermistor and cable assembly. If satis-factory, reconnect to hull penetrator and dis-continue procedure; if not, fit hull connectorsealing plug modified with “D”-ring (item 4,Table 6-4) to cable assembly and continueprocedure. Record results on Data ReportForm 4 Block 1D.

If the thermistor/cable assem-bly requires replacement, it isnecessary to disconnect boththermistors from the hull pene-trator and remove themtogether to preclude damage tothe cables.

6-5.25 PROCEDURAL STEP 2: THER-MISTOR AND CABLE ASSEMBLYREMOVAL

6-5.26 (DV) Notify ship that divers are readyto enter water.


b. (DV) If starboard thermistor is defec-tive, remove starboard TR143 trans-ducer window. If port thermistor isdefective, remove port and starboardTR143 transducer windows.

NOTE

The use of a wide blade screw-driver may be necessary toremove the window from theopening.

c. Remove port (starboard) TR143acoustic window by loosening andremoving the 20 5/8-inch mountingscrews using a 3/8-inch hex socket.

d. Install 5/8-inch 11 UNC x 6-inch AllThread (item 7, Table 6-4) in one of theoutboard holes. Pry the window fromthe opening, rotate on All Thread andsecure in place using a flat washer andhex nut.

6-5.27 (DV) Visually inspect window(s) beingparticularly attentive to the presence of the fol-lowing abnormal conditions:

a. Severe gouges and major nicks (refer-ence NAVSEA S9165-AC-HBK-101,Submarine Sonar Dome Handbook,paragraph 6-5.10d).

b. Biofouling FR40 or greater (referenceNAVSEA S9086-CQ-STM-000/081,Waterborne Hull Cleaning of NavyShips, paragraph 6-5.10e).


6-5.28 (LWC) Complete Data Report Form 4Block 2A.

NOTE

If the diver’s report of inspec-tion findings indicates severedamage or biofouling, removethe window for repair and/orcleaning. If window must beremoved mark window as Portor Starboard.

6-5.29 (DV) Inspect sea chest for loose tiles,excessive rust, etc. Visually inspect ther-mistors for obvious defects. Report findings ofthe inspection to the LWC supervisor.

6-5.30 (LWC) Complete Data Report Form 4Block 2B.

CAUTION

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6-5.31 (LWC) In the sonar penetrator cavityremove banding from both thermistor cablesand ensure the thermistor hull connector seal-ing plugs (item 4, Table 6-4) have beenattached to both cables. Attach a 1/2-inchnylon line to one sealing plug and daisy-chainthe other plug to it.

6-5.32 (LWC/DV) Lower the thermistor cablesdown through the conduit and remove fromthe conduit. Remove 1/2-inch line from cablesealing plugs.

6-5.33 (DV) Remove defective thermistor andmounting plate from foundation by unscrewingthe two 1/2-inch 13 UNC socket head capscrews using a 3/8-inch hex socket or Allenwrench. Carry defective thermistor and cableto the surface.

6-5.34 (LWC) Record serial number of failedthermistor on Data Report Form 4 Block 2C.

6-5.35 (LWC) Determine whether thermistor,cable or both is/are defective.

6-5.36 (LWC) If thermistor is defective andcable is good, obtain a new thermistor (item15, Table 6-4) and record its serial number onData Report Form 4 Block 2D. Replace O-rings in thermistor receptacle and cable con-nector, then reattach existing cable to ther-mistor. Proceed with paragraph 6-5.40.

6-5.37 (LWC) If only the cable is defectiveobtain new cable, attach to thermistor. Pro-ceed with paragraph 6-5.40.

6-5.38 (LWC) If both thermistor and cable aredefective obtain a new hydro-tested ther-mistor/cable assembly (item 15, Table 6-4)and record its serial number on Data ReportForm 4 Block 2E.

6-5.39 PROCEDURAL STEP 3: THER-MISTOR AND CABLE ASSEMBLYREPLACEMENT

6-5.40 (DV) Carry thermistor and cableassembly to sea chest. Reattach 1/2-inch lineto thermistor cable hull connector sealing plug.

6-5.41 (LWC/DV) Pull both cables up throughconduit until they reach the sonar penetratorcavity.

6-5.42 (DV) Install thermistor and mountingplate with two 1/2-inch-13 UNC socket headcap screws, using a 3/8-inch hex socket orAllen wrench.

6-5.43 (LWC) Report results on Data ReportForm 4 Block 3A.

6-5.44 (LWC) Remove hull penetrator sealingcaps.

6-5.45 (LWC) Thoroughly clean hull penetra-tor receptacle with cotton swabs and alcohol(items 12 and 13, Table 6-4). Install a new hullpenetrator connector gasket (item 3, Table 6-4) and hull penetrator O-ring (item 2, Table 6-4). Attach connector to hull penetrator andtighten with spanner wrench. Repeat forremaining thermistor cable.

6-5.46 (SHIP/LWC) Measure insulation resis-tance of both thermistors and cable assem-blies from the preamplifier in the sonarequipment space (reference SMP 34-4405).Record results on Data Report Form 4 Block3B.

6-5.47 (LWC) If paragraph 6-5.46 is com-pleted successfully, route cable in wireways inthe sonar penetrator cavity and band withstainless steel banding (items 8, 9 and 10,Table 6-4).

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6-5.48 (LWC) Inspect the sonar penetratorcavity to ensure removal of all material andtools.

6-5.49 (SHIP) Close out the cavity, removethe CAUTION tag and reinstall the hull coverplate.

6-5.50 (DV) Inspect the NSS sea chest toensure removal or all material and tools.

Use of 5/8-inch 11 UNC x 2-1/4-inch capscrews to pull thewindow into place will result indamage to the window. Use the5/8-inch 11 UNC x 6-inch studs(item 7, Table 6-4) to preventdamage.

6-5.51 (DV) Reinstall the transducer hull win-dow using the two 5/8-inch 11 UNC x 6-inchstuds (item 7, Table 6-4) to pull the windowinto place.

CAUTION

6-112

6-5.52 (DV) Lubricate with Termalene grease(item 1, Table 6-4) and install 18 5/8-inch 11UNC x 2-1/4-inch capscrews in the remainingholes. Remove the previously installed 5/8-inch 11 UNC x 6-inch studs and replace themwith the two remaining 5/8-inch 11 UNC x 2-1/4-inch capscrews after lubricating with Ter-malene grease. Torque all transducer hull win-dow capscrews to 55 foot-pounds in adiametrically opposed sequence. Verify fair-ness of window to non-pressure hull to ensurewindow is fully seated on backing bar.

6-5.53 (DV) Report completion of the torquingsequence to the LWC supervisor.

6-5.54 (LWC) Complete Data Report Form 4Block 3C.

6-5.55 (LWC) Request ship’s force to removeall DANGER tags and return the system tooperational status.

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Figure 6-35. Sonar External Hull Fitting (EHF) Arrangement.

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6-114

Figure 6-36. Connection of One Thermistor Cable Assembly Hull Connector to Hull Penetrator Receptacle.

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6-115

Figure 6-37. NSS Conduit Locations - Sonar Penetrator Cavity.

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6-116

Figure 6-38. NSS Interconnection Block Diagram.

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6-117



TASK DESCRIPTION: Thermistor (starboard or port)assembly waterborne fault isolation and replacement procedures for Trident II D5 submarines.

EQUIPMENT COMPONENT: AN/BQN-25 Thermistor.

SYSTEM: SWS Navigation Systems

RELATED MAINTENANCE: SMP 34-4404, SMP 34-4405.




SWS NAVIGATION REPAIR PERSONNEL (Lead Work Center, LWC, is Shop 67M):

Quantity Position

2 SWS Navigation Electronics Technicians or civilian System Mechanics




Preliminary

Step 1

Step 2

Step 3

Total Elapsed Time


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BLOCK A (6-5.16): SMP 34-4405 Determination of Defective Thermistor

Defective thermistor Port Starboard Initials

PROCEDURAL STEP 1

BLOCK 1A (6-5.18): System Tag Out





BLOCK 1C (6-5.23): Insulation Resistance Test (Hull Penetrator/Inboard Cable)




Sat Unsat Initials

BLOCK 1D (6-5.24): Insulation Resistance Test

TEST POINTS

Pin 1/2 to Ground (Thermistor/Cable Assy)

ACCEPTABLE VALUE ACTUAL VALUE

≥ 1 Mohm Mohm

Sat Unsat Initials

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Figure 6-39. Thermistor/Cable Test Point Identification.

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6-120


PROCEDURAL STEP 2

BLOCK 2A (6-5.28): Insulation of the Transducer Hull Window(s)



Condition of Hull Window(s) Sat Unsat Initials

BLOCK 2B (6-5.30): Inspection of the Sea Chest and Thermistors

Condition of sea chest Sat Unsat

Condition of Thermistor Sat Unsat Initials

BLOCK 2C (6-5.34): Record Serial Number of Tested Thermistor

Failed thermistor serial number

BLOCK 2D (6-5.36): Record Serial Number of New Thermistor

New thermistor serial number

BLOCK 2E (6-5.38): Record Serial Number of New Thermistor /Cable Assembly

New thermistor/cable assembly serial number

PROCEDURAL STEP 3

BLOCK 3A (6-5.43): Install New Thermistor

New thermistor installed

BLOCK 3B (6-5.46): Insulation Resistance Test (From Preamp)


Pin 1/2 to Ground ≥ 100 Mohm Mohm

Sat Unsat Initials

BLOCK 3C (6-5.54): Window Torquing and Fairness to Hull

Sat Unsat Initials

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6-121

Figure 6-40. O-Ring Removal Tool.

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A-1

APPENDIX A

NSS HYDROPHONE INSERT REMOVAL TOOL

(Sheet 1 of 5)

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A-2

APPENDIX A


(Sheet 2 of 5)

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A-3

APPENDIX A


(Sheet 3 of 5)

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A-4

APPENDIX A


(Sheet 4 of 5)

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A-5

NSS HYDROPHONE INSERT REMOVAL TOOLMATERIAL LIST

Item Qty Name Material Remarks

1 1 Bracket Consists of Items 1-1 thru 1-4

1-1 1 Plate NICU .25 thick




2 1 Flat Bar NICU .125 x 2.50

3 2 Bolt NICU .25-2OUNC-2AX 1.50

4 2 SLF LKG Nut NICU .25-2OUNC-2B

5 1 Round Bar CRES 316L .750 Dia.

6 1 Round Bar NIALBR 1.50 Dia.

7 1 Plate Steel 17-4 PH Condition H1075

APPENDIX A


(Sheet 5 of 5)

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