CONTENTS1.0 Scope ..........................................................................................................................42.0 References ..................................................................................................................42.1 ......Purchaser Documents ......................................................................................42.2 ......Industry Standards ...........................................................................................43.0 General ........................................................................................................................43.1 ......General .............................................................................................................43.2 ......Major Components ...........................................................................................53.3 ......Certification ......................................................................................................63.4 ......Calculations ......................................................................................................63.5 ......Design Load Ratings ........................................................................................63.6 ......Accessibility ......................................................................................................73.7 ......Accessibility ......................................................................................................73.8 ......Gears ................................................................................................................73.9 ......Lubrication ........................................................................................................73.10 ....Safety in Design ...............................................................................................73.11 ....Proposals .........................................................................................................83.12 ....Guarantee ........................................................................................................84.0 Boom ...........................................................................................................................94.1 ......General .............................................................................................................94.2 ......Boom Length ....................................................................................................94.3 ......Bolts and Pins ..................................................................................................94.4 ......Boom Attachments ...........................................................................................94.5 ......Sheaves ...........................................................................................................94.6 ......Boom Maintenance ..........................................................................................94.7 ......Boom Rest ........................................................................................................94.8 ......Mast Structure ..................................................................................................95.0 Operator Cab ............................................................................................................105.1 ......General ...........................................................................................................105.2 ......Windows/Visibility ...........................................................................................105.3 ......Doors ..............................................................................................................105.4 ......Cab Equipment ...............................................................................................105.5 ......Gantry Cranes ................................................................................................116.0 Access Platform .......................................................................................................116.1 ......General ...........................................................................................................116.2 ......Crane Access Ladder .....................................................................................116.3 ......Grating ............................................................................................................127.0 Swing System ...........................................................................................................127.1 ......General ...........................................................................................................127.2 ......Motor ..............................................................................................................137.3 ......Braking System ..............................................................................................137.4 ......Bolts ...............................................................................................................137.5 ......Bearings .........................................................................................................138.0 Hoists, Rope, Blocks ...............................................................................................148.1 ......Hoists .............................................................................................................148.2 ......Wire Rope ......................................................................................................168.3 ......Hooks/Blocks ..................................................................................................169.0 Power Equipment .....................................................................................................179.1 ......Diesel Engine .................................................................................................179.2 ......Fuel Day Tank ................................................................................................199.3 ......Hydraulic System ...........................................................................................19

10.0 Electrical ...................................................................................................................2110.1 ....General ...........................................................................................................2110.2 ....Purchaser Provided Equipment ......................................................................2110.3 ....Standards .......................................................................................................2110.4 ....Lights ..............................................................................................................2110.5 ....Handset Station ..............................................................................................2210.6 ....Junction Boxes ...............................................................................................2210.7 ....Wire/Cable ......................................................................................................2210.8 ....Emergency Shutdown Switch .........................................................................2310.9 ....Swivel .............................................................................................................2310.10 ..Slip Rings .......................................................................................................2310.11 ..Horn ................................................................................................................2310.12 ..Windshield Wipers ..........................................................................................2310.13 ..Circuit Breaker ................................................................................................2311.0 Instruments and Controls .......................................................................................2311.1 ....Controls ..........................................................................................................2311.2 ....Indicators ........................................................................................................2511.3 ....Load/Radius Chart .........................................................................................2511.4 ....Control Panel ..................................................................................................2512.0 Structural ..................................................................................................................2612.1 ....General ...........................................................................................................2612.2 ....Welding ..........................................................................................................2712.3 ....Pedestal Adaptor ............................................................................................2712.4 ....Padeyes .........................................................................................................2913.0 Coating ......................................................................................................................2914.0 Identification and Marking .......................................................................................2915.0 Noise .........................................................................................................................3016.0 Preparation for Shipment ........................................................................................3016.1 ....General ...........................................................................................................3016.2 ....Protection .......................................................................................................3016.3 ....Ship Loose .....................................................................................................31

1.0 SCOPEThis specification defines minimum technical requirements for design, materials, fabrication, testing and inspection, and documentation for pedestal mounted, lattice boom marine cranes on offshore platforms.2.0 REFERENCESThis Document is designed to be used in conjunction with the documents listed below and the dates stated herein.2.1 Project DocumentsCOM-SU-2.02 Materials and Application of Painting and Protective CoatingsCIV-SU-1.14 Structural Steel and Other MaterialsNCM-DU-23.01 Design for Offshore Noise ControlMAC-DS-7.01 Data Sheet for Offshore Lattice Boom Pedestal CranesMAC-DR-7.01 Documentation Requirements for Offshore Lattice Boom Pedestal CranesSID-SU-5106 Safety in Designs2.2 Industry StandardsAmerican Gear Manufacturers Association (AGMA)2001-B Fundamental Rating Factors and Calculation Methods for Involute Spur andHelical Gear TeethAmerican Petroleum Institute (API)Spec 2B Specification for Fabrication of Structural Steel PipeSpec 2C Specification for Offshore Pedestal Mounted CranesAmerican Society for Testing and Materials (ASTM)A578 Standard Specification for Straight-Beam Ultrasonic Examination of RolledSteel Plates for Special ApplicationsAmerican Bearing Manufacturers Association (ABMA)Standard No. 9 Load Ratings and Fatigue Life for Ball BearingsStandard No. 11 Load Ratings and Fatigue Life for Roller BearingsAmerican Welding Society (AWS)D1.1 Structural Welding CodeNational Fire Protection Association (NFPA)70 National Electrical Code (NEC)

3.0 GENERAL3.1 General1. Lattice boom pedestal cranes shall be:a. Self contained.b. Diesel driven.c. Hydraulically operated.d. Pedestal mounted.e. Furnished complete with cab and auxiliary equipment.f. Capable of simultaneous raising or lowering boom, rotating, and raising or lowering main or auxiliary (fast) line.g. Capable of lifting, rotating, luffing, slewing and lowering loads at capacities, radii, speeds, and onboard/offboard conditions as specified in data sheets, specifications, and drawings per MAC-DR-7.01. Load radii shall be measured from center of pedestal to center of hook.h. Designed and constructed in accordance with API Spec 2C, Type C, Type D, or Type E.i. Designed for a humid salty offshore atmosphere.j. Rated for 24 hour per day duty.k. Able to sustain inertia loads resulting from combinations of maximum specified loads.l. Designed for transocean shipment.m. Designed to withstand seismic forces.

2. Replacement of major mechanical components, such as engine, pumps, and hoists, and slew bearings shall not require assistance from another crane. Crane shall have supplemental rigging hardware necessary to remove/replace these items and lower them to platform deck.3. Countries of origin for crane and structural steel materials shall be limited to United States, Japan, Germany, and Great Britain.4. Traceability of materials shall comply with API Spec 2C and the specified third party approver.5. Crane pedestal, main platform, shall be welded construction in accordance with technical requirements.6. Recommendations for hinge pins and sheave pins shall be submitted by Manufacturer.3.2 Major ComponentsMajor components of lattice boom pedestal cranes shall include:1. Pedestal and pedestal adaptor (transition piece).2. Swing bearing assembly (or Pintel bearing assembly).3. Main platform (with integral hydraulic oil and fuel tanks).4. Enclosed acoustically insulated cab and air conditioned.5. Crane boom - fixed length sections.6. Boom hoist winch (with brake) and required wire rope.7. Primary load winch (with brake) and required wire rope.8. Secondary load winch (with brake) and required wire rope.9. Swing drive (with brake).10. Diesel power pack.11. Main line load block and hook.12. Secondary line ball and hook.13. Boom head sheave assembly.14. Controls.15. Lighting system.16. Hydraulic load and load radius indicator (primary load winch).17. Recording load and radius load indicator (secondary load winch).18. Pendulum type boom radius indicator.19. Crane pedestal swivel device(s) for piping, electrical, and air connections.20. Load capacity/working radius plaque/ API 2C information chart.21. Maintenance jib with hoist for removing diesel power pack, winches, etc.22. Wind sock.3.3 Certification1. Crane shall be certified to meet applicable regulations (U.S. Coast Guard, etc.).2. Certification agency shall be subject to Purchaser approval.3. Costs associated with obtaining certification shall be included in Supplier pricing.3.4 CalculationsDesign and calculations shall be developed to guarantee component construction and system performancein accordance with this specification, drawings, standards, and other Purchaser supplied information including a failure mode assessment in accordance with API 2C, Section 4.6.3.5 Design Load Ratings1. Marine cranes shall be designed and fabricated to provide load capacities at indicated load radii and speeds as stated on MAC-DS-7.01.2. Crane shall be suitable for handling specified load at environmental loading conditions.3. Load ratings shall be based on net hook loads and shall not be reduced by weights of load blocks, line, and hook itself.4. Onboard/offboard and personnel rated loads as defined in API Spec 2C shall be determined from these load capacities, together with the following design loading conditions specified onMAC-DS-7.01:a. Platform typeb. Offlead in accordance with API 2C, Section 4

c. Sidelead in accordance with API 2C, Section 4d. Wind speede. Wind speed variationf. Significant wave heightg. Hook velocityh. Crane elevationi. Boom tip velocityj. Inclinationsk. Horizontal accelerationl. Vertical acceleration5. Minimum dynamic design coefficient shall be determined in accordance with API 2C, Section 4.3.6 Accessibility1. Components shall be easily accessible for maintenance and repairs.2. Piping and fittings shall be located above decks without being a personnel safety hazard.3. Control rods, linkages, and other items requiring lubrication or service shall be easily accessible.3.7 Accessibility1. Components shall be easily accessible for maintenance and repairs.2. Piping and fittings shall be located above decks without being personnel safety hazard.3. Control rods, linkages, and other items requiring lubrication or service shall be easily accessible.3.8 Gears1. Gears shall be designed for sufficient strength and surface durability using service factors in accordance with AGMA 2001-B quality class 6 or better precision.2. Hoist gearing shall bea. Enclosed and have positive means of lubrication.b. Replaceable without removal of the hoist.3.9 Lubrication1. Moving contact points of hoists and drives shall be adequately lubricated.2. Lifetime lubricated bearings shall not require means of external lubrication.3. Sheave pins and hinge pins shall have stainless steel grease fittings.3.10 Safety in Design1. Components, including ladders, handrails, walkways, and platform guards, shall be designed for maximum personnel safety protection in accordance with SID-SU-5106, including:a. Adequate access to components and instruments for repairs and replacement.a. Ability to observe instruments and operate manual components while standing at grade adjacent to packaged system.b. Ability to lubricate operating equipment without removal of guards, piping, or other components.c. Sufficient instrumentation for safe operation and monitoring.d. Electrical equipment, wiring, and controls suitable for area of classification specified.2. Solid metal or expanded metal guards shall be installed for protection of personnel from hazards of mechanical moving parts, hot surfaces, and chemical sprays such that maximum exposed (unguarded) clearance between guard and hazard is less than or equal to 1/2 inch or as noted in SID-SU-5106. Screen and plastic guards shall not be acceptable.3. Relief valves shall comply with all codes and standards. These valves shall be set to operate at maximum of stated design pressure and not less than 110% of pump discharge pressure.4. Products containing asbestos or lead shall be prohibited.3.11 ProposalsProposals shall include:1. Completed data sheet (MAC-DS-7.01) with Supplier information.2. Design data, including:a. Load radius charts.b. Description and basic specifications for engine and hydraulic power pack.

c. Design rates for luffing, slewing, main hoist and whip hoist.d. Safety locking device details.e. Lattice boom details.f. Pedestal bearing details.g. Electrical system details.h. Instrumentation details.i. Hydraulic system isometric.j. Engine data.k. Winch data (for boom, main, and auxiliary hoist).l. Safe failure mode assessment in accordance with API 2C, Section 4.6.3.12 Guarantee1. Pedestal crane shall be guaranteed to meet specified performance requirements at specified environmental conditions, including:a. Load capacityb. Rope speedc. Hoisting speedd. Swing speed2. Supplier shall correct deficiencies concerning its equipment to achieve specified lifting requirements.3. Correction of deficiencies shall be at sole cost and expense of Supplier.

4.0 BOOM4.1 GeneralBoom shall be:1. Sectionalized lattice type design fabricated from angle or tubular steel2. Of welded construction3. Seal welded4.2 Boom Length1. Required boom length (center of boom foot pin to center of boom point sheave) shall be as defined on data sheet, MAC-DS-7.01.Jib length for fast line shall be minimum of 4 feet (1.22 m).4.3 Bolts and Pins1. Boom sections shall be bolted together.2. Boom shall be attached to main deck using stainless steel foot pins.3. Boom connections shall have grease fittings.4.4 Boom Attachments1. Load line guides shall be provided to prevent lines from contacting boom members.2. Shock absorbing mechanical spring boom stops shall be provided on revolving structure for contact with boom in extreme up position.3. Mechanical load radius pendulum shall be mounted on side of boom within operator visibility.4. Boom shall have nonmetallic cable wear plates.4.5 Sheaves1. Sheaves shall have roller bearings.2. Bushings shall not be acceptable.3. Dyform (nylon) sheaves will be considered.4. Forged steel sheaves with hardened grooves and tapered roller bearings shall be used for floating crane/drilling support applications.4.6 Boom Maintenance1. Boom maintenance shall include full length walkway with work platforms for servicing boom point equipment and other boom mounted equipment.2. Servicing items shall comply with guidelines as specified in SID-SU-5106.4.7 Boom Rest

Positional and load requirements for boom rest, including acceleration/inclination of the hoist facility, shall be provided by the Manufacturer.4.8 Mast StructureMast structure shall be completely seal welded.

5.0 OPERATOR CAB5.1 GeneralOperator cab shall be:1. All welded (100% both sides) reinforced carbon steel construction.2. Fully enclosed.3. Bolted to crane platform with vibration isolators.4. Adequately braced to prevent swaying or vibration under loads and conditions specified.5.2 Windows/Visibility1. Operator, while seated in operator seat, shall have 360 degree full vision through tinted safety glass on all sides.2. Forward visibility shall include vertical range to allow boom tip observation at all operating conditions.3. Controls and windows shall be arranged to permit straight down visibility from operator's seated position.4. Windows shall be tinted safety glass.5. Front window shall have center pivot section that can be easily opened for cleaning and/or removal.6. Positive safety latch shall be provided to prevent window closure when window is open.7. Windows shall be:a. Capable of being opened to provide cross ventilation.b. Mounted in such a way as to be easily removable.8. Front and top windows shall have windshield wiper.5.3 Doors1. Operator cab door shall have positive latching arrangement and weather stripping.2. Rear sides shall have full height and full width hinged or latched access doors for machinery removal and maintenance.5.4 Cab Equipment1. Cab shall include:a. Pneumatic windshield wipers and window defrosterb. Alarm hornc. Hydraulic and engine switches and instrumentationd. Acoustical insulatione. Air conditioner/heaterf. CO2 fire extinguishersg. Stainless steel API Spec 2C load/radius and information chartsh. Interior lights with dimmeri. Two 115/1/60 spare outletsj. Main power circuit breakerk. Swivel type all weather cushioned operators seat with backrestl. Joystick crane operating controlsm. Tool boxn. MIPEG 2000R load and radius indicator2. Air conditioner/heater shall be sized to provide inside cab temperature of 70°F (21°C) at maximum ambient temperature and 85°F (29°C) at minimum ambient temperature.5.5 Gantry Cranes1. On gantry type cranes, caged ladder shall be installed on gantry to permit access to gantry sheaves and to boom rope deadeye.2. Top of gantry shall have a platform to allow for access to both sides of gantry sheaves.

3. Crane gantry shall have maintenance jib in gantry for servicing winches and engine.6.0 ACCESS PLATFORM6.1 General1. Crane shall have complete platform and ladder arrangement to permit operator access to cab from deck.2. Platform shall extend across rear side of operator cab.3. Both sides of cab shall have access openings in handrails.4. Platforms and ladders shall have as required to meet safety requirements:a. Toeboardsb. Handrails with safety gatesc. Cagesd. Hoopguards5. Main platform shall have handrails, built-in drip pans, fuel and hydraulic oil tanks, operatingcab, and hydraulic power pack.6. Platforms, ladders, and walkways shall comply with OSHA safety requirements.7. Ladders, steps, and landings shall be provided where access to rigging (including gantry and winches) is necessary.9. Ladder shall be installed to permit access from crane access platform to work platform around engine. Ladder rungs shall be constructed using 3/4-inch smooth bar.10. Ladders, handrails, and gates shall be hot dipped galvanized and painted after fabrication.6.2 Crane Access Ladder1. Revolving crane access ladder shall be positioned to rotate tangentially near crane pedestal such that ladder cannot hit personnel if crane swings.2. Ladder cages shall be provided if either of the following is true:a. It is possible for personnel to fall overboard from ladder.b. Ladder requires more than total 10-foot vertical descent to platform grade.3. Rotating equipment that may come in contact with personnel (winches, chain/belt drives, fans, etc.) shall have guards.6.3 Grating1. Crane walkway shall have removable grating panels that shall be:a. Attached using 5/16 inch galvanized grating clips at 2 foot maximum spacing on supports.b. Of standard galvanized 1 inch x 3/16 inch serrated bars.2. Selected grating sections shall be provided directly outside cab access door if required for visibility.3. Bolted access covers shall be provided for access to interior of base structure.4. Removable panels provided below crane platform for service access shall be accessible from pedestal access platform.5. Deck shall be covered with coating as specified in COM-SU-2.02.

7.0 SWING SYSTEM7.1 General1. Design, testing, and material traceability of swing circle assembly shall comply withAPI Spec 2C, Section 8.0.2. Main frame support bearing or Pintel shall be capable of rotating 360 degrees and stoppingand locking at any position.3. Maximum swing rotation speed shall be in accordance with Table 1. The maximum possible boon tip rotation speed shall not exceed 800 feet per minute with the boon in the horizontal position

Table 1: Maximum Swing Rotation Speed

Boom Length Crane Rotation Speed

100 Ft. or Less 1 to 1.5 RPM

100 - 140 Ft. 0.75 to 1 RPM

150 to 180 Ft. 0.67 to 0.75 RPM

190 to 220 Ft. 0.5 - 0.67 RPM 4. Swing shall permit 360 degree continuous rotation.5. Swing speed shall be as specified.6. Swing mechanism shall be capable of smooth starts and stops, with controllable rates of acceleration and deceleration.7. Crane shall be free to swing with swing control in neutral position to allow boom to track load.8. Swing circle assembly shall be roller bearing, ball bearing, pad bearing, or king post design.9. Structural members subject to repeated stress cycles shall be designed for resistance to structural fatigue degradation.7.2 MotorRotation shall be provided by hydraulic motor and planetary gear reducer capable of smooth starts and stops at varying acceleration and deceleration speeds.7.3 Braking System7.3.1 Dynamic Swing Brake1. Dynamic swing brake system shall be provided.2. Hydraulic cross control of joysticks shall provide hydraulic dynamic braking.7.3.2 Parking BrakeParking brake shall:1. Have holding power in both directions to restrain movement but not to retard motion of upper structure.2. Be controlled by operator at operating station and be capable of remaining in engaged position without attention.3. Not automatically engage if swing control is returned to neutral position.4. Be mechanical, spring set, pressure released.5. Lock rotation of crane through swing drive mechanism in any position.7.4 BoltsBolts that connect swing bearing to pedestal or crane upper structure shall be:1. Equally spaced over 360 degree mounting circumference.2. Prestressed to level that precludes relief of preload in the most heavily loaded fastener at 80% of the Safe Working Load (SWL) multiplied by the Vertical Design Coefficient (Cv).3. Permanently marked with fastener manufacturer identification mark and SAE, ASTM, or ISO grade material.4. Accessible without removal of other equipment.5. Positively restrained from rotation if not accessible for inspection.7.5 Bearings1. Bearings supporting rotation shall be sleeve or antifriction type.2. Antifriction bearings shall be selected in accordance with ABMA Standard 9 and Standard 11 and shall have L-10 life exceeding equivalent of 25,000 hours.3. Antifriction bearings shall be of suitable size for loads and speeds specified.

8.0 HOISTS, ROPE, BLOCKS8.1 Hoists8.1.1 General1. Crane base shall have the following hydraulically operated cable drum hoists:a. Boom hoistb. Primary load hoistc. Auxiliary (fast line) hoist2. Hoists shall be:

a. Fail safe hydraulic design with automatic braking in event of engine failure or loss of hydraulic pressure.b. Powered through self centered planetary type gear reduction certified for personnel handling.c. Readily accessible with wire rope reeved.d. Maintainable without use of special tools.e. Equipped with means to check lubricant and coolant levels.3. Hoists that use circulating fluid for lubrication or cooling shall have means to check fluid level while in operation.4. Hoists that use closed lubrication system shall have fluid capacity of at least 120% of manufacturer minimum recommended operating level.5. Exposed moving parts that may constitute a hazard during normal operating conditions shall be guarded.6. Filled drums shall not exceed 80% of drum capacity.7. Boom hoist shall be capable of supporting boom and 150% of static load within minimum and maximum boom angles.8. Design shall allow lowering of boom with specified loads from minimum operating radius to horizontal position in 2-minutes or less.9. Load hoists shall have hook speeds at water level in accordance with API 2C, Section 4.3.3 based on significant wave height.10. Hoist drums shall be mounted on antifriction bearings.11. Hoists shall be capable of infinitely variable speed control and full reversing characteristics for power lowering.12. Main and auxiliary load and boom hoists shall have manual emergency lowering.13. Hydraulic kickout device shall prevent boom from lowering further than minimum boom horizontal position.8.1.2 Brakes1. Brakes and clutches shall have adjustments to compensate for wear and to maintain adequate spring force.2. Static brakes shall be provided to hold drum from rotating in lowering direction and shall be capable of holding rated load indefinitely without attention from operator.3. Brakes shall be automatically applied upon return of control handle to center (neutral) position.4. Brakes shall have sufficient impact capacity to hold 1.5 times rated torque of hoist.5. Boom hoist brake shall be drum wrap around type. Drum brake mechanism shall be spring set with hydraulic power release.6. Boom hoist shall additionally have pawl or ratchet safety holding device.8.1.3 Safety and Limiting Devices1. Hoists shall have device to lower load in event of power supply failure.2. Hoists shall be designed to control descent of load by controlling flow from hydraulic drive motor attached directly to hoist.3. Control device shall:a. Be connected directly to outlet port of motor.b. Require positive pressure from power source to release.c. Actuate automatically to bring hoist or cylinder to smooth stop in event of control or motive power loss.4. Hoists designed to control descent of load or boom by controlling speed of hoist drive input shall be capable of smoothly stopping 110% of rated load during lowering at maximum speed.5. Main, auxiliary, and boom hoists shall each have safety device that prevents load block or headache ball from two blocking into boom point sheaves if hoisting or booming down.6. Anti-two blocking device shall be of mechanical or hoist encoder type.7. Positive, auxiliary holding device shall be provided to prevent unintentional lowering of boom during maintenance and shall be manually engaged by Operator at the boom hoist.

8. If boom approaches minimum operating radius, hydraulic boom hoist shall have limiting device that:a. Disengages power to boom hoist.b. Applies boom hoist brake.9. With hydraulic boom hoist limiting device engaged, main and auxiliary load lines and swing mechanism shall remain operable.10. Boom hoist limiting device shall allow operator to boom down immediately, without override intervention.11. Crane shall have hydraulic low angle kickout set at maximum operating radius as indicated on load chart.12. Low angle kickout shall have override system to allow placing boom tip on platform deck to permit boom changeout and maintenance activities.13. Mechanical boom stops shall have shock absorbing bumpers in accordance with API Spec 2C.8.2 Wire Rope1. Loading hoisting cable shall be mill certified multi strand, extra improved plow steel (EIPS) wire rope, with independent wire rope core (IWRC) as recommended for crane service and marine environment.2. Wire ropes shall not be galvanized unless applied to individual strands.3. Hoist rope for main and auxiliary blocks shall be non-rotating wire rope.4. Boom hoist shall use standard API wire rope and shall be continuously reeved without the use of a pendant and bridle.5. Wire rope larger than 1-1/8 inch diameter shall be used only with Purchaser approval.6. Reverse bending of rope shall not be permitted.7. Wire rope shall have safety factor in accordance with Section 7 of API Spec 2C. If Cv is larger than 2.0, the wire rope safety factor shall be 2.5 times Cv.8. Ropes and pendant lines shall be coated with manufacturer recommended compound to reduce corrosion.9. Wire rope shall be anchored to drum by either clamp securely attached to drum or wedge socket arrangement.10. Wire rope capacity of drums shall be sufficient to allow crane to be reeved with number of parts of line required:a. To lift crane's rated capacity.b. For minimum working hook travel to water line with boom in vertical position.11. Each hoist shall have sufficient length of wire rope to meet operating requirements defined in specifications plus two wraps of cable on drum in extreme down position.12. No less than 2-1/2 times the wire rope diameter shall be provided between the topmost layers of the rope and outer drum flange in any operating condition.13. Hoist rope speed, line pull, and rope capacity for rope specified shall be specified by Supplier.8.3 Hooks/Blocks1. Primary load block and swiveling hook shall be rated for maximum crane capacity.2. Fast line hook shall be rated at capacities specified in MAC-DS-7.01 and terminate in top swiveling overhaul ball and hook.3. Crane hook speeds shall be as specified using water line as a reference point.4. Hooks shall be forged steel complete with lockable safety latch swivel.5. Blocks shall be of sufficient weight to prevent unraveling of cable on drum during lowering operation while unloaded.6. Sheaves, including running block, shall have guards or other suitable devices to prevent rope from coming out of sheave grooves.7. Hook and ball assemblies and load blocks shall each be permanently labeled with weight and rated capacity.8. Sheave bearings shall be of antifriction type with individual grease fittings.

9.0 POWER EQUIPMENT9.1 Diesel Engine9.1.1 General1. Engine shall be radiator cooled, Caterpillar or Purchaser approved equal, diesel engine.2. Noise level shall comply with API Spec 2C.3. Engine vibration shall be limited to maximum filtered reading of 8 mils peak to peak, with velocity no greater than 0.35 inch per second.4. Diesel engine data sheet shall be completed.9.1.2 Starting System1. Starting system shall be as specified on data sheet, MAC-DS-7.01.2. Air Starta. Air will be supplied at base of pedestal adaptor.b. Air pressure shall be as specified on MAC-DS-7.01.3. Hydraulic Starta. Hydraulic start system shall have:(1) Starter(2) Accumulator(3) Hand charging pump(4) Valves and pipingb. Unit shall automatically recharge start system accumulator to full pressure while running.c. Hand charging pump handle shall be removable and be bracket mounted if not in use.d. If specified, pneumatically driven (air or natural gas) hydraulic pump, Haskel or equal, shall be installed on crane to recharge accumulator.9.1.3 Fuel SystemEngine shall have fuel pump priming system to purge air from injector lines if engine runs out of fuel.9.1.4 Exhaust System1. Exhaust gases shall be piped to outside of engine enclosure and discharged in direction away from operator.2. Spark arresting muffler with insulated exhaust system shall be provided.3. Acceptable emission limit for diesel engine shall not exceed 8 grams of NOx per brake horsepower-hour.9.1.5 Cooling Systems1. Engine shall have self contained cooling system consisting of radiator protective guard and engine driven fan with shaft guards.2. Radiator shall be:a. Constructed of materials resistant to offshore marine environment or suitably coated (Copon or equal) to resist corrosion.b. Sized for both peak cooling loads of hydraulic oil heat exchanger and engine while operating in ambient environment of 105°F (41°C).c. Sized for 50/50 glycol/water coolant for operation at maximum ambient temperature specified.d. Protected by expanded metal guard or equivalent.9.1.6 Instrument/Controls1. Engine shall have the following gages:a. Tachometer.b. Oil pressure gage.c. Hour meter.d. Water temperature gage.e. Fuel pressure gage.2. Audible alarms shall be provided for:a. Low oil pressure.b. High jacket water temperature.

c. Low fuel level.d. Engine overspeed.3. Gage panel including tachometer, oil pressure gage and water temperature gage shall be located in operator cab.4. Engine shall have variable speed governor.5. Engine shall alarm on low oil pressure or high jacket water temperature.6. Combustion air and fuel shutoff valves (“Rig Saver”) shall be provided to automatically shut down engine in event of overspeed condition.9.1.7 Engine FiltersEngine shall have:1. Full flow oil filter.2. Dry type air filter.9.1.8 Engine House1. Engine shall be located in soundproof, weatherproof, walk-in equipment house.2. Equipment house shall provide minimum 2 feet, 6 inches of clearance around three sides of engine.3. Engine shall have front and rear walk-in doors.9.2 Fuel Day Tank1. Engine fuel day tank shall have sufficient capacity to allow engine to run for 12 hours at full rated load without refueling or 250 gallons, whichever is greater.2. Tank shall be constructed of type 316 stainless steel plate, with minimum thickness of 3/16 inch.3. Tank shall have self closing filler cap and low point drain/cleanout connection.4. Fuel tank shall have:a. Positive sealing, self closing, weatherproof cap.b. Screened vent.c. Low point drain with 1 inch ANSI 150# RF flanged valve.d. Water trap or boot to check or drain condensation.e. Cleanout hatch.f. Heavy duty fuel level gage.5. Fuel filler cap shall be located above deck surface to preclude standing rain water from leaking into fuel tank.6. Access to fuel tank shall not require removal of other equipment.9.3 Hydraulic System9.3.1 General1. Hydraulic system shall:a. Be open loop, diesel driven.b. Provide simultaneous operation of boom, hoist, and swing.2. Diesel engine and hydraulic systems shall permit simultaneous full load operation of boom hoist, swing motor, and main or fast line hoist.3. Minimum intermittent horsepower rating for diesel driver shall be 150% of horsepower of largest hoist.9.3.2 Pumps1. Individual hydraulic circuits for boom hoists and main/auxiliary hoists shall have minimum of three dedicated hydraulic pumps.2. Open center, multiple pump system shall be used. Pumps shall not be valve and piston type.3. Gear pumps shall be used for fixed platform applications.4. Piston pumps shall be used for drilling support platform applications.9.3.3 ReservoirHydraulic system reservoir shall:1. Be crane mounted.2. Be constructed of 3/16 inch minimum Type 316 stainless steel plate.3. Be complete with bolted and gasketed access hatch to permit cleaning of reservoir.4. Have level gage and oil temperature indicator.

5. Have water trap or boot with low point drain.6. Have positive sealing fill cap.7. Be mounted above the pumps with shut-off valves in the suction lines and check valves in the return lines.9.3.4 FiltersFull flow filtration systems shall be provided as follows:1. 100 mesh field replaceable strainers on suction side of pumps.2. 10 micron field replaceable elements for overall hydraulic system and pilot circuit.3. Filters mounted externally to hydraulic tank.4. Built-in differential pressure indicators across each filter set.9.3.5 ExchangerAir to oil heat exchanger shall be required and sized to permit crane to operate continuously at maximum specified ambient temperature.9.3.6 Valves1. Control valves shall be spring loaded to neutral position.2. Adjustable relief valves shall be provided for all functions to protect all parts of system from overpressure.9.3.7 Hoses1. Hydraulic hoses shall:a. Be heavy duty type.b. Have safety factor in excess of 4 to 1.c. Be protected against chaffing and other mechanical damage.d. Have steel wire braid internal reinforcement.2. High pressure lines shall:a. Have minimum working pressure equal to or greater than 4 times the maximum operating pressure.b. Be furnished with permanent type, machine swaged fittings and shall be 37 degree JIC female swivels.c. Not have pipe threads.3. Low pressure lines shall:a. Have minimum working pressure of 500 psig.b. Be fitted with double acting bolted fittings.c. Have hose ends of cadmium or zinc plated steel.d. Be marked at both ends with permanent identification tags.9.3.8 Tubing1. Tubing shall be 316 SS.2. Tube fittings shall be 316 SS Swagelok® or Purchaser approved equal.9.3.9 Drip PansHydraulic components, including winches, shall be surrounded by sealed drip pans with drains.9.3.10 Hydraulic Oil1. Supply of hydraulic oil equal to total capacity of hydraulic system shall be provided.2. If hydraulic system has not already been filled by manufacturer, hydraulic oil shall be furnished in drums.

10.0 ELECTRICAL10.1 GeneralComponents and wiring shall comply with project specifications.10.2 Purchaser Provided Equipment1. Two circuits of 480 VAC, three phase, 60 Hz power to electrical swivel shall be provided by Purchaser.2. One circuit will be powered from 120 VAC UPS system for obstruction warning lights.

3. Other circuit will be powered from platform 120 VAC lighting panel for boom flood lights and other power requirements.10.3 StandardsElectrical installation, (including fixtures, switches, wiring, and swivel enclosure) shall comply with NFPA 70 (NEC) requirements for Class I, Group D, Division 2, hazardous area classification.10.4 Lights10.4.1 General1. Complete self contained lighting system for night operation, including boom tip warning light, lighted gage panel, horn, and switches, shall be provided and wired to electrical swivel located in base of crane or atop pintel support.2. Lights shall turn on automatically with engine ignition and at nightfall by externally mounted photo cell.10.4.2 Aircraft Lights1. Two flashing red aircraft warning lights shall be provided, one each mounted on boomtip and on top of gantry, with cab mounted switch and activated by engine oil pressure.2. Warning lights shall be activated if engine is running or if boom is out of boom rest.10.4.3 Boom LightsBoom lights shall consist of two 400 watt HP sodium floodlights equally spaced on boom.10.4.4 Gantry LightsGantry lights shall consist of one 400 watt HP sodium light.10.4.5 Cab LightsCab light shall include:1. One 100 watt or two 60 watt cab lights2. Panel light10.4.6 Inspection LightingInspection lighting shall consist of standard arrangement of lighting (using 100 watt mercury vapor flood light fixtures) for access and inspection of:1. Engine equipment house2. Cable drums3. Machinery area4. Engine5. Access ladder and catwalk10.5 Handset StationCab shall have one Gai-Tronics or equal outdoor type handset station.10.6 Junction Boxes1. Electrical wiring shall terminate in junction boxes located on side of pedestal mounting adaptorin or near base for Purchaser remote interconnections.2. Junction boxes shall have 10% spare terminals.10.7 Wire/Cable1. Electrical cables shall be:a. Marked with permanent identification tags at both ends.b. Armored shipboard cable with outer PVC sheath.2. Cable termination enclosures and electrical fittings shall be PVC coated.3. Electrical connections shall be via crimped terminals and lugged or screwed connections.4. Electrical wiring shall be marked according to circuit diagrams.10.8 Emergency Shutdown SwitchCrane shall have emergency shutdown switch to stop crane power unit.10.9 Swivel1. Crane shall be fitted with weatherproof electric swivel to provide electric power and seastate data (if required) to main platform and boom.2. Swivel joint for starting air for diesel engine shall be supplied on revolving main platform.

3. Swivel shall be explosion-proof, with collector rings for 480VAC, 1 Phase, 60 Hz operation.4. Manufacturer shall provide required transformers.10.10 Slip RingsCrane shall have at least four spare slip rings.10.11 HornCrane shall have one horn with double switch control as follows:1. One control shall be for intermittent horn button.2. Second control shall be for continuous horn signal.10.12 Windshield WipersCrane shall have windshield wipers.10.13 Circuit BreakerCrane shall have main circuit breaker with disconnect switches.Note: Fused breakers are unacceptable.

11.0 INSTRUMENTS AND CONTROLS11.1 Controls11.1.1 Winch and Swing Controls1. Crane shall have basic four lever crane control layout.2. Individual controls for boom hoist, load line, fast line, and swing shall have spring return to neutral position providing “dead man” control.3. Controls for lowering boom, load line, and fast line shall incorporate full reversing power controlled feature to prevent free fall of loads.4. Control functions and operations shall be:a. Clearly markedb. Easily visible from operator stationc. Within easy reach of operator5. Control handles shall be permanently marked with their functions and shall have distinctly different contours to permit operator to identify each control without looking.6. 316 SS diagram of four lever crane controls, labeled in English, shall be provided near controls.7. If crane is for platform located where English is not native language, an additional316 SS lever control diagram in applicable native language shall be installed.11.1.2 Anti-Two Block Interference System1. System shall prevent:a. Load block or fast line ball from being retrieved by winch into boom head sheave assembly.b. Operator from lowering boom if “two block interference” has inadvertently occurred.2. Anti-two block devices shall be provided for main hoist and auxiliary hoist to prevent two block interference.3. Override shall be provided to permit separation of block/ball from boom.11.1.3 Load and Load Radius Indicators1. Load and load radius indicator, MIPEG 2000R or Purchaser approved equal, shall be provided to display:a. Main line hook loadb. Load radiusc. Fast line hook load2. Load indicator shall have optional items as listed on data sheet, MAC-DS-7.01.3. Load indicator shall be:a. Located at operator stationb. Calibrated for crane's specified load capacity, boom, and reevingc. Equipped for load recording11.1.4 Additional Controls

1. Controls shall also include:a. Swing brake controlb. Dynamic service swing brake with foot pedal control2. Emergency shutdown switch shall be provided that allows operator to positively stop crane power unit in fail safe mode.3. Brakes shall engage automatically on failure of hydraulic system.4. Boom shall have boom stop mechanism to prevent over topping of boom.5. Controls shall be fail safe in event of loss of electrical, pneumatic, or hydraulic power.6. Alarm functions shall be self-resetting.11.2 IndicatorsCranes shall have:1. Load indicator with accuracy of ±5%.2. Mechanical radius indicator.3. Pendulum type boom angle indicator of 316 SS.11.3 Load/Radius Chart1. Load/radius chart shall be provided, indicating safe working load for platform (onboard) and boat (offboard) lifts for both main and auxiliary hoists.2. Chart shall be located at operator station.3. Chart shall be of stainless steel.4. Load radius charts for offboard lifts shall indicate limiting wave heights and/or wind speed for dynamic lift.5. At a minimum, dynamic coefficient shall be calculated in accordance with API 2C, Section 4.6. If Supplier's calculated dynamic factor exceeds these requirements, Supplier shall state and indicate limiting wave height and wind speeds for boat lifting using specified dynamic coefficients.7. Chart shall provide the following information in English units for crane's specified boom and reeving:a. Onboard load-radius chartb. Offboard load-radius chartc. Reeving of boom, main hoist, and auxiliary hoist, including line size, strength, type, and number of partsd. Operating hydraulic pressure8. Proposed layout of load chart shall be subject to Purchaser approval prior to fabrication of chart.11.4 Control Panel11.4.1 General1. Hydraulic control panel located within cab shall be arranged for visibility and ease of maintenance and shall be bolted to cab deck.2. Controls and components in described in this section shall be mounted in control panel or vicinity thereof.Control panels shall indicate the following:1. Load hoist, direction and speed2. Boom hoist, direction and speed3. Fast line hoist, direction and speed4. Swing motor, direction and speed11.4.3 Hydraulic Pressure Gages (Liquid Filled)Hydraulic pressure gages shall indicate the following:1. Boom winch hydraulic oil2. Swing motor hydraulic oil3. Load line and/or fast line winch hydraulic oil11.4.4 Other ControlsIn addition to those listed above, the control panel shall display the following:1. Engine starter pedal or valve2. Engine throttle

3. Anti-Two block interference override4. Boom winch pawl control5. Main winch speed switch (if applicable)6. Foot pedal for dynamic swing brake11.4.5 Diesel Engine Gages1. Engine gages shall:a. Be glycerine-filledb. Have 2-1/2-inch dialc. Be panel mounted on 3/16-inch plate.2. Engine gages shall include:a. Lube oil pressureb. Water temperaturec. Tachometerd. Fuel levele. Hourmeter

12.0 STRUCTURAL12.1 General1. Structural fabrication and welding shall comply with API Spec 2C.2. Welding on main frame, cab, boom, and other structural parts shall be continuous. Joints shallbe seal welded to prevent corrosion.3. Heel pins used in the construction of boom shall be high strength stainless steel.4. Connecting bolts in the boom shall be Xylan-coated or Purchaser approved equal.5. Heel pins shall have wear bushings.6. Bolts, nuts, screws, and hinges used in construction of crane shall be cadmium or zinc plated.7. Teflon coated pins shall not be acceptable.12.2 Welding1. Welding procedures and welding operator qualifications for critical welds shall comply with AWS D1.1.2. Welding procedures and welder qualifications shall be subject to Purchaser approval prior to starting fabrication.3. Welds shall be seal welded to prevent corrosion.12.3 Pedestal Adaptor12.3.1 Description1. Crane shall have pedestal adaptor that shall be welded to platform pedestal.2. Adaptor shall fit platform support structure as detailed on engineering design drawings furnished by Purchaser.3. Support structure drawings shall be examined and certified that design is satisfactory to match pedestal adaptor.4. If changes are necessary, marked up drawings detailing changes shall be submitted to Purchaser for approval.5. Purchaser approval of changes shall be required prior to fabrication of pedestal adaptor.12.3.2 Design1. Pedestal/king post adaptor (or transition piece) shall be designed to withstand maximum forces transmitted under loads as specified.2. Supports and adaptor shall be designed for minimum load equal to dead load of crane plus twice rated capacity of crane.12.3.3 Materials

Crane pedestal, pedestal adaptor, and king post (if applicable) shall be fabricated using high strength steel (50 ksi yield) having guaranteed notch toughness and through thickness properties (Type I material per CIV-SU-1.14).12.3.4 Dimensions/Elevation1. Top of installed platform pedestal (swing bearing) shall be at elevation above mean low water (MLW) as specified in data sheet, MAC-DS-7.01.2. Pedestal shall be provided with sufficient length that shall permit field splice at location as defined in data sheets and drawings.3. Pedestal size shall be confirmed.4. Required wall thickness shall be specified for mating with Purchaser furnished platform pedestal.5. Adaptor length shall permit required clearance between lowest hook or appurtenance and platform deck.12.3.5 Fab TolerancesPedestal adaptor fabrication tolerances shall comply with API Spec 2B.12.3.6 Mating with Owner Structure1. Mounting pedestals/king posts shall be suitable for welding to a mating Purchaser furnished platform pedestal as sized in data sheet, MAC-DS-7.01.2. End of pedestal shall be beveled 30 degrees for full penetration welding.3. Pedestal adaptor flange, both before and after welding, shall be 100% ultrasonically inspected in accordance with ASTM A578, Section 8.12.3.7 Appurtenances1. Reinforced hose opening 8 inches in diameter shall be provided for routing of interconnecting hoses from power unit to hydraulic swivel.2. Opening for routing incoming power wiring into pedestal adaptor electrical swivel shall be provided.3. Adaptor shall have access manway to permit installation and inspection of hydraulic and electric power swivel devices.4. Necessary bolts, washers, and shims for mounting crane bearing to pedestal adaptor shall be provided.5. Waterproof swivel device(s) having continuous 360-degree rotation shall be provided to accommodate starting air and electrical lighting supply conduit.a. Connections shall terminate in pedestal base approximately 3 feet (1 m) above bottom of pedestal adaptor or at top of king post.b. Flexible hoses shall be provided between swivel and welded pipe connections.6. Pedestal/king post adaptor shall be complete with circumferential drain gutter and 2-inch NPT nipple for draining crane fluids.12.3.8 Stabbing Guide1. Adaptor shall have stabbing guides and beveled edge for full penetration welding to pedestal support structure.2. Stabbing guide shall be furnished as required for ease of installation of crane on pedestal.3. King posts shall include top conical section to serve as stabbing guide.1. Complete dimensions, materials, and material thicknesses of adaptor shall be provided.2. Maximum overturning moments and axial loads permitted by crane adaptor assembly shall be provided.3. Platform pedestal base offset that will affect crane operation or load rating shall be stated.12.4 Padeyes1. Padeyes shall be provided to permit level lift of fully assembled crane.2. Padeyes and lift system shall be designed for three times dead weight of fully rigged crane, including weight of pedestal adaptor.3. Padeyes shall be located to provide adequate clearance for lifting slings.4. Sling lengths and sizes used in design of padeyes shall be included in crane documentation.

13.0 COATING1. External surfaces shall be prepared and coated in accordance with COM-SU-2.02.2. The following shall be protected from damage and paint during sandblasting and paint operations:a. Galvanized surfacesb. Valve stems and packingc. Mechanical moving partsd. Name platese. Instrumentsf. Electrical equipmentg. Other sensitive components3. If possible, components not requiring painting shall be removed for protection during painting.4. Top coats of paint shall be as specified.

14.0 IDENTIFICATION AND MARKING1. Nameplate and API monogram shall be furnished by manufacturer in accordance withAPI Spec 2C, Section 16.2. Nameplate shall be in conspicuous location.3. Nameplate shall be permanently affixed to crane with stainless screws or welded to one piece bracket.a. Bracket shall be continuously seal welded to baseplate and have minimum projection of 2 inches (51 mm).b. Nameplate shall not be mounted with adhesive.4. Nameplate shall contain the following data:a. API monogramb. Manufacturer name and addressc. Date manufacturedd. Manufacturer model numbere. Manufacturer serial numberf. Equipment tag numberg. Purchaser purchase order numberh. Design service temperature (°F)5. Nameplate drawing shall be subject to Purchaser approval prior to fabrication.

15.0 NOISE1. Sound level testing shall be performed on crane after fabrication in accordance with NCM-DU-23.01.2. Noise level at crane operator station shall not exceed maximum allowable noise level of 75 dB(A) for exposure period of 3 hours per 12-hour work day.

16.0 PREPARATION FOR SHIPMENT16.1 General1. Crane unit, excluding boom, shall be pre assembled prior to delivery and capable of being lifted in one piece for platform installation.2. Supplier shall be responsible for crane equipment and related components for shipment and loadout.3. Equipment shall be assembled to maximum extent possible in Supplier facility prior to shipment.4. Crane shall be shipped with:a. Full hydraulic reservoir.b. Engine oil and coolant reservoirs filled in accordance with manufacturer recommendations.5. Operating instructions and label plates shall be in place and legible and shall have not been obscured during painting operations.

6. Equipment containing rust preservatives, insulating oils, antifreeze solutions, or other fluids shall be suitably tagged at opening to indicate nature of contents and shipping and storage precautions.7. One complete set of installation, operating and maintenance instructions in addition to number of sets specified on the Documentation Requirements Sheet (MAC-DR-7.01) shall be packed within operator cab.16.2 Protection1. Connections shall have thread protectors or flange blanks to prevent damage during shipping and handling.2. Items subject to damage or corrosion shall be protected.3. Tape shall not be used on glass or clear plastic.4. Instruments and other sensitive components shall be covered with polyethylene bags to ensure adequate protection.5. Equipment components shall be properly protected and braced for marine transport.6. Protection shall be provided against atmospheric corrosion while in transit and while in outdoor storage.7. Openings and flange faces shall be protected with wood or metal covers and sealed with waterproof removable tape.8. Engines to be stored for long periods shall have engine protectant as recommended by engine manufacturer.9. Threaded connections shall be treated with Kopr-Shield antiseizing compound or Purchaser approved equal.16.3 Ship Loose1. Miscellaneous parts, including subplatform ladder assembly and handrails, shall be tagged or marked with tag item number for which they are intended. Such parts shall be suitably boxed, firmly attached to main item, and shipped with unit.2. Purchaser reserves right to advise, at final inspection, of items removed for shipping purposes.3. Ship loose items shall be crated for protection prior to shipment.4. Loose items shall be properly tagged to facilitate reassembly.5. Hose connections and hose assembly ends shall be marked correspondingly to facilitate field assembly.