pro-meter gear metering pump - 303808e-03

Pro-Meter� Gear Metering Pump

Customer Product ManualPart 303808E-03

Issued 4/16

NORDSON CORPORATION AMHERST, OHIO USA

Part 303808E-03 � 2008 Nordson Corporation

tents

Table of ContentsSafety 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Qualified Personnel 1. . . . . . . . . . . . . . . . . . . . . . . . .Intended Use 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Regulations and Approvals 1. . . . . . . . . . . . . . . . . .Personal Safety 1. . . . . . . . . . . . . . . . . . . . . . . . . . . .

High-Pressure Fluids 1. . . . . . . . . . . . . . . . . . . . .Fire Safety 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Halogenated Hydrocarbon Solvent Hazards 2.Action in the Event of a Malfunction 2. . . . . . . . . . .Disposal 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Components 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Specifications 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Repair 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Gear Pump Replacement 4. . . . . . . . . . . . . . . . . . . .

Remove the Gear Pump 4. . . . . . . . . . . . . . . . . .Install the Gear Pump 4. . . . . . . . . . . . . . . . . . . .

Gear Pump Seal Replacement 6. . . . . . . . . . . . . . .Remove the Seals 6. . . . . . . . . . . . . . . . . . . . . . .Install the Seals 6. . . . . . . . . . . . . . . . . . . . . . . . .

Manifold O-Ring Replacement 7. . . . . . . . . . . . . . . .Pressure Transducer Replacement 7. . . . . . . . . . . .Diaphragm Seal Gage Replacement 7. . . . . . . . . .Coupling Replacement 8. . . . . . . . . . . . . . . . . . . . . .

Remove the Coupling 8. . . . . . . . . . . . . . . . . . . .Install the Coupling 8. . . . . . . . . . . . . . . . . . . . . .

Speed Reducer Replacement 10. . . . . . . . . . . . . . . .Remove the Speed Reducer 10. . . . . . . . . . . . . .Install the Speed Reducer 10. . . . . . . . . . . . . . . .

Motor Replacement 12. . . . . . . . . . . . . . . . . . . . . . . . .Remove the Motor 12. . . . . . . . . . . . . . . . . . . . . . .Install the Motor 12. . . . . . . . . . . . . . . . . . . . . . . . .

Tachometer Ring and Sensor Replacement 14. . . .Parts 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pro-Meter Gear Metering Pump Common Parts 17Heated Pro-Meter Gear Metering Pump 19. . . . . . .

Heater and RTD Wiring Diagram 20. . . . . . . . . . . . . .

Contact UsNordson Corporation welcomes requests for information, comments, andinquiries about its products. General information about Nordson can befound on the Internet using the following address:http://www.nordson.com. Address all correspondence to:

Nordson CorporationAttn: Customer Service555 Jackson StreetAmherst, OH 44001

NoticeThis is a Nordson Corporation publication which is protected by copyright.Original copyright date 1997. No part of this document may bephotocopied, reproduced, or translated to another language without theprior written consent of Nordson Corporation. The information containedin this publication is subject to change without notice.

Trademarks

Nordson, the Nordson logo, and Pro-Meter are registered trademarks ofNordson Corporation.

All other trademarks are the property of their respective owners.

Pro-Meter Gear Metering Pump 1

Part 303808E−03� 2008 Nordson Corporation

Safety Read and follow these safety instructions. Task- andequipment-specific warnings, cautions, and instructions areincluded in equipment documentation where appropriate.

Make sure all equipment documentation, including theseinstructions, is accessible to persons operating or servicingequipment.

Qualified Personnel Equipment owners are responsible for making sure that Nordsonequipment is installed, operated, and serviced by qualifiedpersonnel. Qualified personnel are those employees orcontractors who are trained to safely perform their assignedtasks. They are familiar with all relevant safety rules andregulations and are physically capable of performing theirassigned tasks.

Intended Use Use of Nordson equipment in ways other than those describedin the documentation supplied with the equipment may result ininjury to persons or damage to property.

Some examples of unintended use of equipment include

� using incompatible materials

� making unauthorized modifications

� removing or bypassing safety guards or interlocks

� using incompatible or damaged parts

� using unapproved auxiliary equipment

� operating equipment in excess of maximum ratings

Regulations and Approvals Make sure all equipment is rated and approved for theenvironment in which it is used. Any approvals obtained forNordson equipment will be voided if instructions for installation,operation, and service are not followed.

Personal Safety To prevent injury follow these instructions.

� Do not operate or service equipment unless you arequalified.

� Do not operate equipment unless safety guards, doors, orcovers are intact and automatic interlocks are operatingproperly. Do not bypass or disarm any safety devices.

� Keep clear of moving equipment. Before adjusting orservicing moving equipment, shut off the power supply andwait until the equipment comes to a complete stop. Lockout power and secure the equipment to prevent unexpectedmovement.

� Relieve (bleed off) hydraulic and pneumatic pressure beforeadjusting or servicing pressurized systems or components.Disconnect, lock out, and tag switches before servicingelectrical equipment.

� While operating manual spray guns, make sure you aregrounded. Wear electrically conductive gloves or agrounding strap connected to the gun handle or other trueearth ground. Do not wear or carry metallic objects such asjewelry or tools.

� If you receive even a slight electrical shock, shut down allelectrical or electrostatic equipment immediately. Do notrestart the equipment until the problem has been identifiedand corrected.

� Obtain and read Material Safety Data Sheets (MSDS) for allmaterials used. Follow the manufacturer’s instructions forsafe handling and use of materials, and use recommendedpersonal protection devices.

� Make sure the spray area is adequately ventilated.

� To prevent injury, be aware of less-obvious dangers in theworkplace that often cannot be completely eliminated, suchas hot surfaces, sharp edges, energized electrical circuits,and moving parts that cannot be enclosed or otherwiseguarded for practical reasons.

High-Pressure Fluids High-pressure fluids, unless they are safely contained, areextremely hazardous. Always relieve fluid pressure beforeadjusting or servicing high pressure equipment. A jet ofhigh-pressure fluid can cut like a knife and cause serious bodilyinjury, amputation, or death. Fluids penetrating the skin can alsocause toxic poisoning.

If you suffer a fluid injection injury, seek medical careimmediately. If possible, provide a copy of the MSDS for theinjected fluid to the health care provider.

The National Spray Equipment Manufacturers Association hascreated a wallet card that you should carry when you areoperating high-pressure spray equipment. These cards aresupplied with your equipment. The following is the text of thiscard:

WARNING: Any injury caused by high pressureliquid can be serious. If you are injured or evensuspect an injury:

� Go to an emergency room immediately.

� Tell the doctor that you suspect an injection injury.

� Show him this card

� Tell him what kind of material you were spraying

MEDICAL ALERT—AIRLESS SPRAY WOUNDS: NOTE TOPHYSICIAN

Injection in the skin is a serious traumatic injury. It is importantto treat the injury surgically as soon as possible. Do not delaytreatment to research toxicity. Toxicity is a concern with someexotic coatings injected directly into the bloodstream.

Consultation with a plastic surgeon or a reconstructive handsurgeon may be advisable.

The seriousness of the wound depends on where the injury is onthe body, whether the substance hit something on its way in anddeflected causing more damage, and many other variablesincluding skin microflora residing in the paint or gun which areblasted into the wound. If the injected paint contains acryliclatex and titanium dioxide that damage the tissue’s resistance toinfection, bacterial growth will flourish. The treatment thatdoctors recommend for an injection injury to the hand includesimmediate decompression of the closed vascular compartmentsof the hand to release the underlying tissue distended by theinjected paint, judicious wound debridement, and immediateantibiotic treatment.

Pro-Meter Gear Metering Pump2

Part 303808E−03 � 2008 Nordson Corporation

Fire Safety To avoid a fire or explosion, follow these instructions.

� Ground all conductive equipment. Use only grounded airand fluid hoses. Check equipment and workpiecegrounding devices regularly. Resistance to ground must notexceed one megohm.

� Shut down all equipment immediately if you notice staticsparking or arcing. Do not restart the equipment until thecause has been identified and corrected.

� Do not smoke, weld, grind, or use open flames whereflammable materials are being used or stored.

� Do not heat materials to temperatures above thoserecommended by the manufacturer. Make sure heatmonitoring and limiting devices are working properly.

� Provide adequate ventilation to prevent dangerousconcentrations of volatile particles or vapors. Refer to localcodes or your material MSDS for guidance.

� Do not disconnect live electrical circuits when working withflammable materials. Shut off power at a disconnect switchfirst to prevent sparking.

� Know where emergency stop buttons, shutoff valves, andfire extinguishers are located. If a fire starts in a spraybooth, immediately shut off the spray system and exhaustfans.

� Shut off electrostatic power and ground the charging systembefore adjusting, cleaning, or repairing electrostaticequipment.

� Clean, maintain, test, and repair equipment according to theinstructions in your equipment documentation.

� Use only replacement parts that are designed for use withoriginal equipment. Contact your Nordson representativefor parts information and advice.

Halogenated Hydrocarbon Solvent Hazards Do not use halogenated hydrocarbon solvents in a pressurizedsystem that contains aluminum components. Under pressure,these solvents can react with aluminum and explode, causinginjury, death, or property damage. Halogenated hydrocarbonsolvents contain one or more of the following elements:

Element Symbol Prefix

Fluorine F “Fluoro-”

Chlorine Cl “Chloro-”

Bromine Br “Bromo-”

Iodine I “Iodo-”

Check your material MSDS or contact your material supplier formore information. If you must use halogenated hydrocarbonsolvents, contact your Nordson representative for informationabout compatible Nordson components.

Action in the Event of a Malfunction If a system or any equipment in a system malfunctions, shut offthe system immediately and perform the following steps:

� Disconnect and lock out system electrical power. Closehydraulic and pneumatic shutoff valves and relievepressures.

� Identify the reason for the malfunction and correct it beforerestarting the system.

Disposal Dispose of equipment and materials used in operation andservicing according to local codes.



Description See Figure 1.

The Pro-Meter gear metering pump is designed to deliverand meter pressurized materials.

A bulk unloader pump supplies material to the inletmanifold (7) of the high pressure, positive-displacementgear pump (5). The gear pump is powered by amotor (10) and is driven by a speed reducer (4). Thespeed reducer uses the motor input to increase thetorque and decrease the speed. A tachometer ring (3)monitors motor speed; material flow can be determinedfrom the motor speed.

The gear pump package is used with a system controller.The system controller may vary depending on theapplication. Adjustments at the system controllerenclosure can be used to change the motor speed andaffect the desired pump flow rate. For information on thesystem controller, refer to the appropriate systemcontroller manual.

ComponentsSee Figure 1.

The following components make up a typical Pro-Metergear metering pump:

� two encoder (1, 2) connectors

� tachometer ring sensor (3) that includes an encoderand magnetic pickup sensor

� speed reducer (4)

� gear pump (5)

� 11/2-in. material inlet (7) and outlet (6) manifolds

� one or two 5000 psi (349 bar) pressuretransducers (8)

� motor (10)

� one or two 5000 psi (349 bar) diaphragm sealgages (11).

� cover (12) for heated pump configurations.

10

9

2

34

56

87

1

12

11 UNHEATED

HEATED

Figure 1 Typical Pro-Meter Gear Metering Pumps



SpecificationsThese values are approximate.

Height: 12 in. (30.5 cm)

Width: 13 in. (33 cm)

Length: 44 in. (112 cm)

Weight: 200 lb (91 kg)

Table 1 Gear Metering Pump Motor Specifications

SpeedReducer

RatioMotor

Max.rpm Voltage Horsepower

Fullloadamps

32:1DC 1750

0−180Vdc 2 9.5

AC 1750480Vac 2 3.2

AC 1750575Vac 2 2.7

AC 1750380Vac 2 4

Operation

Operation of the gear metering pump is dependent uponthe system it is used with. For optimal operation results,use the gear metering pump to boost pressure only. Donot use the gear metering pump to reduce pressure. Toavoid cavitation, do not operate the pump below500 psi (34.5 bar) at the pump inlet. The maximum outletpressure is 5000 psi (344 bar).

Repair

This section contains repair procedures for the Pro-Metergear metering pump.

WARNING

� Allow only qualified personnel to perform thefollowing tasks. Follow the safety instructions inthis document and all other relateddocumentation.

� High pressure fluids are extremely dangerous.Do not place any part of your body in front of adispensing device, drain, or leak in a highpressure system. A jet of high fluid can causeserious injury, toxic poisoning, or death. Relievesystem and material pressure beforedisconnecting hoses.

� Disconnect equipment from line voltage. Failureto observe this warning may result in personalinjury, death, or equipment damage.

� Use protective clothing, goggles, and gloves toprotect against contact with pump material.Contact with material may cause injury fromchemical reaction or burns.

Gear Pump ReplacementSee Figure 2.

Remove the Gear Pump

1. Shut down all power and air pressure to the bulkunloader pump and gear metering pump.

2. Make sure that all material supply pressure from theunloader is relieved. Manually actuate the gun over awaste container to relieve residual pressure betweenthe gear pump and gun.

3. Remove the fasteners (2) securing the safetycover (1).

4. Loosen the set screws (3) on the coupling end (4).Slide the coupling hub toward the pump (13) andremove the coupling center plate (17).

5. Remove the coupling end (4) and drive keys (14)from the pump shaft (15).

6. Support the material supply line and the materialoutlet line, then remove the screws (9) securing themanifolds (5) to the pump (13). Remove and discardthe O-rings (8).

7. Remove the screws (10), lock washers (11), andwashers (12) securing the pump mounting block (7)to the base (18). Remove the pump assembly.

8. Remove the screws (6) securing the pump mountingblock (7) to the pump (13).

Install the Gear Pump

1. Apply Never Seez to the threads of the screws (6).Install the pump mounting block (7) to the newpump (13) using the screws. Tighten the screws to150 ft-lbs (203 N�m).

2. Install the pump (13) to the base (18) using thescrews (10), lock washers (11), and washers (12).Tighten the screws to 75 ft-lbs (102 N�m).

3. Lubricate a new O-rings (8) with Parker O-ringlubricant and install them onto the manifolds (5).

4. Apply Never Seez to the threads of the screws (9).Install the manifolds (5) onto the pump (13) using thescrews. Tighten the screws to 150 ft-lbs (203 N�m).

5. Install the coupling end (4) and coupling centerplate (17). Refer to the Install the Coupling procedurein the Coupling Replacement section.

6. Restore power and air pressure to the system andtest the pump operation.



1

18

2

34

10

5

8

15

7

5 8

119

6

13

12

9

14

17

3

Figure 2 Gear Pump



Gear Pump Seal ReplacementThis procedure describes how to use the gear meteringpump seal kit. The seal kit includes a seal housing aswell as the seals, spacers, and a snap ring. All kitsinclude a seal lubricant. The pump must be sufficientlycleaned using the appropriate solvent before sealinstallation. Some pump shaft preparation may berequired, since sharp edges of shaft keyways maydamage the inside diameter of the seals.

Seal wear is often identical on both ends of the pump.Replace both sets of seals to reduce downtime.

NOTETypically, changing the seals does not requirethat you remove the pump from the base. Ifseal accessibility is a problem, perform theRemove the Gear Pump procedure in the GearPump Replacement section.

Remove the Seals

1. Shut down all power and air pressure to the bulkunloader and gear metering pump.

2. Shut down the pump and bleed off pressure from bothsupply and discharge lines of the gear pump.

See Figure 2.

3. Remove fasteners (2) securing the safety cover (1).

4. Loosen the set screws (3) on the coupling end (4).Slide the coupling hub toward the pump (13) andremove the coupling center plate (17).

5. Remove the coupling end (4) and drive keys (14)from the pump shaft (15).

See Figure 3.

6. Remove the cap screws (1) from the sealhousings (3). Remove the seal housings from thepump shaft (5) by tightening the jacking setscrews (2).

Install the Seals See Figure 3.

1. Place a small amount of grease, included with eachseal kit, on the inside diameter of the new sealhousing and the seals.

2. Screw the jacking set screws (2) back out of the sealhousings (3) to prevent making contact with thepump (4) when the seal housings are installed.

3. Install the seal housings (3) onto the pump shaft (5)using the cap screws (1). Tighten the cap screws to12 ft-lb (16.27 Nm).

NOTEIf the pump was removed from the base,perform the Install the Gear Pump procedure inthe Gear Pump Replacement section.

See Figure 2.

4. Install the coupling end (4) and coupling centerplate (17). Refer to the Install the Coupling procedurein the Coupling Replacement section.

5. Power up the pump assembly and ensure properpump and seal operation. A small amount of leakagemay occur when the pump is fully pressurized.Disregard this leakage unless it interferes with pumpoperation.

1

2

3 4

3

1

2

5

Figure 3 Replacing the Seals



Manifold O-Ring ReplacementSee Figure 4.

NOTEThe aluminum manifold port has SAE threads,and the steel manifold port has NPT threads.



3. Disconnect hoses from the manifold.

4. Remove the screws (1) securing the manifold (5) tothe gear pump (7). Remove the manifold and discardthe O-ring (4).

5. Lubricate a new O-ring (4) with Parker O-ringlubricant and install it onto the manifold (5).

6. Install manifold (5) onto the pump (7) using thescrews (1). Tighten the screws to150 ft-lb (203 N�m).

7. Connect hose to the gear pump.

Pressure Transducer ReplacementSee Figure 4.



3. Disconnect the transducer cables.

4. Unscrew the pressure transducer (6) from the 1/4-in.port on the manifold (5).

5. Pack the pressure transducer port and transducer tipwith high-temperature grease.

6. Screw the new pressure transducer (6) into the 1/4-in.port on the manifold (5).

7. Connect the pressure transducer cable.

Diaphragm Seal Gage Replacement See Figure 4.



3. Disconnect the diaphragm seal gage (3) from thenipple (2).

4. Pack gage port and and nipple (2) withhigh-temperature grease.

5. Connect the diaphragm seal gage (3) to the nipple (2)and tighten securely.

5 61

4

4 5 6

1

32

7

2

1

1

3

Figure 4 Replacing the Manifold O-Ring, PressureTransducer, and Diaphragm Seal Gage



Coupling Replacement See Figure 5.

Remove the Coupling




4. Loosen the set screws (3, 7) on the couplingends (4, 6).

5. Slide the coupling end (6) toward the pump (13) andremove the coupling center plate (5).

6. Remove the coupling ends (4, 6) from the gear pumpshaft (12) and speed reducer shaft (11).

Install the Coupling

! CAUTION !To prevent damage to the coupling ends andgear pump seals during installation, do not useforce or strike the coupling with a hammer.

1. Install the new coupling ends (4, 6) onto the gearpump shaft (12) and speed reducer shaft (11) usingthe appropriate keys (8). Make sure that the drivekeys are fully engaged in the shaft keyways.

2. Apply Loctite 242 threadlocking adhesive to the setscrews (7). Make sure that the gap between thecoupling end (6) and and gear pump sealhousing (14) is 0.75 in. (19.05 mm) Tighten the setscrews to to 5 ft-lb (7 Nm).

3. Position the coupling center plate (5) over the gearpump coupling end (6). The cam follower bearings inthe gear pump coupling end will fit into the slot in thecoupling center plate.

4. Slide the speed reducer coupling end (4) into thecoupling center plate (5). Manually rotate thegearbox shaft to align the cam follower bearings inthe speed reducer coupling end with the slot in thecoupling center plate.

5. When viewed from overhead, the coupling ends (4, 6)and center plate (5) should appear concentric andrest flat against each other. If adjustment isnecessary, loosen the speed reducer screws (9) andmove the speed reducer/motor assembly to align thecoupling.

6. Tighten the screws (9) to 75 ft-lb (102 N�m) and verifythe alignment.

NOTEThe gear pump shaft (12) and speed reducershaft (11) should be in line and parallel.

7. Apply Loctite 242 threadlocking adhesive to the setscrew (3). Make sure that the gap between thecoupling center plate (5) and speed reducer couplingend (4) is 1.5 mm (0.06 in.). Tighten the set screw to15 ft-lb (20.5 Nm ).

8. Install the safety cover (1). Tighten the fasteners (2).



0.06 in.(1.52 mm)

0.75 in.(19.05 mm)

1

3

7

910

11

2

B20

4

5

6

7

8

8

12

13

14 6 5 4

Figure 5 Replacing the Coupling and Aligning Coupling Hubs



Speed Reducer Replacement

See Figure 6.

Remove the Speed Reducer 1. Shut down all power and air pressure to the bulk

unloader pump and gear metering pump.



4. Remove the hex nuts (9) or screws (15), and lockwashers (8) securing the speed reducer (10) to themotor (6) and tachometer ring (7).

5. Loosen the set screw (13) on the speed reducercoupling end (12). Slide the coupling toward thespeed reducer and remove the coupling centerplate (12).

6. Remove the screws (9), washers (3), and nuts (2)securing the speed reducer (10) to the base (14).Remove the speed reducer from the base.

Install the Speed Reducer

1. Remove the coupling end (12) from the old speedreducer (10) and install it on the new speed reducer.

2. Install the new speed reducer (10) to the base (14)using the screws (3), lock washers (4), andwashers (5). Do not tighten the screws at this time.henew speed reducer to the base.

3. Install the coupling center plate (11) and speedreducer coupling end (12). Refer to the Install theCoupling procedure in the Coupling Replacementsection.

4. Install the motor and tachometer ring using the lockwashers (8), nuts (9) or screws (15). Tighten the nutsor screws sequentially to 23 ft-lb (31.2 Nm).

5. Install the safety cover (1). Tighten the screws (2).

6. Restore power to the system and test the pumpoperation.



13

2

1

6

7

9

10

8

4

5

3

12

B60

B20

11

14

15

Attaching hardware for AC motors1042195, 1059801, and 1070914

Figure 6 Replacing the Speed Reducer



Motor ReplacementSee Figure 7.

Remove the Motor

1. Shut down power to the motor (7).

2. Disconnect the motor power cable from theconnector (6) on the motor (7).

3. Remove the nuts (11) or screws (12), and thewashers (10) securing the motor (7) to the speedreducer (1).

4. Support the motor and remove the motor andtachometer ring (9) from the speed reducer.

5. Remove the set screws (2) from the coupling (5).

6. If used, remove the tachometer ring (9).

7. Remove the set screws (8) from the old motor andsave for use when installing the new motor.

Install the Motor 1. Apply Loctite 242 threadlocking adhesive to the set

screws (8) and install them onto the new motor (7).Tighten the set screws to 13.6 Nm (10 ft-lb).

2. If used, install the tachometer ring (9) onto the newmotor. Refer to Tachometer Ring and SensorReplacement.

3. Depending upon the gear metering pumpconfiguration, install the coupling (5) as shown inFigure 8. Tighten the coupling set screws (2)securely.

4. Install the motor (7) to the speed reducer (1) usingthe washers (10), nuts (11) or screws (12).Sequentially tighten the nuts or screws to23 ft-lb (31.2 Nm).

5. Connect the motor power cable to the motor.

6. Power up the system and make sure that the newmotor has the proper rotation. If required, shut downthe system and switch the motor leads for properdirection of rotation.

1

2

11

4

59

7

10

6

8

3

12


Figure 7 Replacing the Motor



MOTOR SHAFT

SET SCREWS

TACH RINGOR

ENCODER

MOTOR SHAFTKEYWAY GROOVE

0.625 in.(15.875 mm)

COUPLING(WITHOUT SPIDER)

MOTOR SHAFT

MOTOR SHAFTKEYWAY GROOVE

SET SCREWS

COUPLING(WITHOUT SPIDER)

CENTER TIMING SPROCKETWITH SENSOR. TIGHTENSET SCREW.

COUPLING INSTALLATION COUPLING INSTALLATIONUSING TACHOMETER RING OR ENCODER WITHOUT TACHOMETER RING OR ENCODER

Figure 8 Coupling Installation



Tachometer Ring and SensorReplacement

NOTE

� This procedure is not required for pumps that useac motor 1042195.

� Differences in the procedures based uponMadison and Dynapar components are noted.

1. Remove the motor. Refer to the Remove the Motorprocedure in the Motor Replacement section.

See Figure 9 and refer to Tables 2 and 3.

2. Madison only: Solder the connector wires (7, 11) ona new tachometer ring connector(s) according to thepin and socket designations.

3. Dynapar: Replace with a new tachometer ring.

Madison: Replace with a new tachometerring (1, 2, 3, 4, or 5). Insert the sensor(s) (8, 10) andconnector(s) (6, 12) into the tachometer ring.

4. Make sure that the gear face is centered on theencoder sensor (8).

Madison: The air gap (15) of each sensor should befrom 0.0762 to 0.2286 mm (0.003 to 0.009 in.) fromthe gear. In addition, the black centerline (9) on thesensor must be in line with the gear (13) on themotor shaft (14).

5. Install the motor to the speed reducer. Refer to theInstall the Motor procedure in the Motor Replacementsection.

Table 2 Encoder Sensor Pin Connector

Pin Number Color

A Red

B White

C Black

D - - - - - -

E Shield Drain

Table 3 Magnetic Pickup Sensor Socket Connector

Pin Number Color

A White

B Black

C - - - - - -

D - - - - - -

E - - - - - -



12 6

9

10

11 7

2

3

5

1

4

8

13

15

148 or 109

Adjusting the Air Gap between Gear and Sensor(s)

Figure 9 Tachometer Ring and ConnectorsNote: The encoder sensor has a black centerline (9) along the sensor cylinder; the magnetic pickup sensor does not

have a black centerline.



Parts To order parts, call the Nordson Customer ServiceCenter or your local Nordson representative.

17

12

11

13

2

11

131217

2

3

13

144

5

10

9

218

18

6

18

19

20

20 20

18

22

23

34

35

1516

36

7

7

1516

144

35


22

Figure 10 Unheated Pro-Meter Gear Metering Pump



Common Parts See Figure 10.

The following components are common to the unheatedand heated gear metering pumps. Where severalvariations of the same item number are listed, order theappropriate replacement parts based upon your gearmetering pump configuration.

Item Part Description Qty Note

— - - - - - Module, Pro-Meter gear metering pump 1

— - - - - - Module, Pro-Meter gear metering pump, heated 11 332897 � Kit, replacement, gear pump 1

2 138727 � Kit, service, urethane pump 2

3 981557 � Screw, socket head, 1/4-20 x 1.75 in. 6

4 900493 � Lubricant AR

5 325286 � Key, 0.2497 diameter x. 0.750 in. long (dowel pin) 2

6 308869 � Motor, ac, electric, 2 HP, gear pump 1

6 1070914 � Motor, ac electric 380 Vac, 50 Hz, 2 HP, with connector encoder 16 1042195 � Motor, ac electric 460 Vac, 2 HP, with connector encoder 16 1059801 � Motor, ac electric 575 Vac, 2 HP, with connector encoder 1

6 131020 � Motor, dc, electric, 2 HP, gear pump 1

7 973410 � Plug, pipe, 1/4 in. 2 A

8 308605 � Speed reducer, 32:1 inline 1

9 308617 � Coupling, 25:1 and 32:1 inline 1

10 182077 � Block, mounting, 32:1 pump 1

11 135943 � Transducer, 5000 psi 2 A

12 973037 � Nipple, hex, 1/4 x 1/4 x 1.45 in.. 4/2 A

13 131009 � Manifold, steel, NPT thread 2

13 145663 � Manifold, aluminum, SAE thread 2

14 940223 � O-ring, Viton, 0.989 inside diameter x 0.070 in. width 2

15 981449 � Screw, socket head, 5/8-11 x 2.000 in. 4

16 900344 � Lubricant AR

17 1042527 � Seal, diaphragm, with gage, 1/4 NPT 5000 psi 2 B

18 176181 � Ring, magnetic pickup, Madison 1 C

18 185871 � Ring, encoder pickup, Madison 1 C

18 185869 � Ring, encoder and magnetic pickup, Madison 1 C

18 225924 � Ring, encoder, dual pickup, Madison 1 C

18 303679 � Ring, tachometer, 2x pulse, output, Dynapar 1

Continued...



Common Parts (contd)

19 133164 � Connector, magnetic pickup (sockets) 1 C

20 186479 � Connector, encoder (pins) 1 (2) C, D

21 984254 � Hex nut, 3/8-16 4

22 983160 � Lock washer, 3/8 in. 4

23 141111 � Base, gear 1

34 182076 � Cover, safety, 32:1 pump 1

35 340938 � Screw, set, socket, 3/8-16 x 2.50 in. GR5 435 981560 � Screw, hex, 3/8-16 x 1.125 in., cap 4 E

36 1042942 � Coupling, with spider, 7/8 in. ID, 3/16 KW, 1.97 in. long 1NS 900464 � Adhesive, threadlocking AR

NOTE A: The gear metering pump may use one, two, or no transducers. When not using a transducer, only thepipe plug 973410 is necessary.

B: The gear metering pump may use one or two gages.

C: The gear metering pump may use an encoder sensor, magnetic pickup sensor, both encoder andmagnetic pickup sensors, or dual encoder sensors.

D: The magnetic and encoder pickup ring uses one encoder connector; the dual encoder pickup ring usestwo connectors.

E: Order these screws for ac motor 1042195.

AR: As Required

NS: Not Shown



Heated Pro-Meter Gear Metering Pump See Figure 11. The following components are availablefor the heated versions of the gear metering pump.Where several variations of the same item number arelisted, order the appropriate replacement parts basedupon the gear metering pump configuration.

1

2

2

32

31 2526

27

29

24

33

3028

30

30

26

Figure 11 Heated Pro-Meter Gear Metering Pump Components

Item Part Description Qty Note

1 332898 Kit, replacement, gear pump, heated 1

2 184213 Kit, service, urethane pump, heated 2

24 1060683 Cord set 1

25 938046 Cartridge, heater 0.375 in. diameter, 4.00 in. long, 210 watts, 120 Vac 4

25 938040 Cartridge, heater 0.375 in. diameter, 4.00 in. long, 210 watts, 240 Vac 4

26 275386 Compound, thermal joint AR

27 981001 Screw, panel 4-40 x 0.187 in. 1

28 983526 Lock washer, #4 1

29 170207 Sensor, temperature RTD, platinum 1

29 112374 Sensor, temperature RTD, nickel 1

30 939586 Connector, plastic, 2-station 3

31 984155 Nut, panel mounting 1

32 983161 Lock washer, 3/8 in. 1

33 1083938 Cover, heated pump 1



Heater and RTD Wiring Diagram

See Figure 12.

HEATER CARTRIDGE

HEATER CARTRIDGE

HEATER CARTRIDGE

HEATER CARTRIDGE

RTD

CORDSET

PIN 1

PIN 2

PIN 3

PIN 5

GND

Figure 12 Heater and RTD Wiring Diagram

pro-meter gear metering pump - 303808e-03

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