GEAR AS-OIL PUMP 1443004 - Caterpillar

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Install relief valve (15) to head (10) . Tighten relief valve (15) to a torque of 35 2 N m (26 1 lb ft).
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Install O-ring seals (14) to head (10) .
Install port plate (13) to head (10) .
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Install head (10) to pump (2) .
Install bolts (12) to head (10) . Tighten bolts (12) to a torque of 205 10 N m (151 7 lb ft).
Install O-ring seal (11) to head (10) .
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Note: Wear plate (9) must be installed in the proper orientation.
Install wear plate (9) .
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Install O-ring seals (8) to housing (7) .
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Install housing (7) to pump (2) .
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Install bolts (6) to pump housing (2) .
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Install Tooling (A) and a suitable lifting device. Connect pump housing (1) to pump housing (2) . The weight of each pump is 42 kg (93 lb).
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Install bolts (5) .
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Install hub (4A) . Measure the distance from hub (4A) to the pump cover. Set the distance to the recorded measurement from the disassembly. Apply Tooling (N) to bolt (4B) . Install bolt (4B) . Tighten bolt (4B) to a torque of 102 5 N m (75 4 lb ft).
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Install tube assemblies (3) and (4) .Note: The correct priming and break-in procedures should always be used, when the parts of the rotating group have been rebuilt or replaced. The break-in procedure is important because improper break-in will result in failures after minimal hours of the pumps and of the motors. Improper break-in procedures leave little evidence about the failure. Prime a rebuilt pump or a rebuilt motor.Note: Abrasive particles must be removed from the hydraulic system. Contamination is a frequent cause of pump failures. Pump failures are often due to improper flushing techniques from a previous failure.Note: Hydraulic system repair is required if the components have been run to catastrophic failure. The amount of hydraulic system repair will depend on the extent of metal contamination. Do not use the kidney loop filtering method as the only clean up procedure. Refer to Special Instruction, SMHS6866 for loaders. Refer to Special Instruction, SMHS6936 for excavators. These procedures can be adapted to the hydraulic systems on other Caterpillar machines. The basic flushing procedures are similar. Be sure to flush the system thoroughly after a failure. Use 130-6061 Hose Cleaner Group to assist flushing the hydraulic system. Refer to Tool Operating Manual, NEHS0643 for information on the 130-6061 Hose Cleaner Group .Note: Once all contaminants have been thoroughly flushed from the system, a baseline SOS analysis must be completed. Refer to Special Instruction, SEBF3116 for information on oil sampling. The SOS oil sample is used to determine the size and the quantity of the contaminants. Particle count is the recommended method for particle detection.Note: Use 138-9656 Contamination Counter Group during the cleaning procedure for the hydraulic system. Clean the hydraulic system for four hours. Refer to Tool Operating Manual, NEHS0580 for information on the 138-9656 Contamination Counter Group .End By: Install