COMPRESSOR GP 5029409 - Caterpillar

To prevent personal injury, move the control levers backward and forward to release the pressure in the hydraulic system. Slowly loosen the cap of the hydraulic tank to release any pressure in the tank. Be cautious of hot hydraulic oil when any lines are disconnected in the hydraulic system.
2. Remove identify and plug two hydraulic hoses (3). Remove two bolts (1) and remove brake pump (2). Install in reverse order. 3. Install pump (2) onto spline coupling (4) on the shaft of the implement pump.4. Install two bolts (1) and tighten to a torque of 36 to 45N m (27 to 33 lb ft)5. Install two hydraulic hoses (3) to the brake pump.Disassemble And Assemble Brake Charging Pump
Start By:a. remove brake charging pump Place alignment marks on all portions of the pump that will separate. This will assist during assembly. 1. Remove four bolts (1) remove rear cover (2). 2. Remove spring (3), remove O-ring (4), and remove plate (5). 3. Remove two pins (8) remove carridge (7) and remove O-ring (6). 4. Remove rotor and vanes (9) from the pump shaft. 5. Using tooling (A) remove snap ring (12) from front housing (10). Remove shaft and bearing (11) from Housing (10). 6. Remove seal (13) from front housing. 7. Using tooling (A), remove snap ring (14) from the pump shaft and remove bearing (15) from pump shaft. Assemble in reverse order. Check alignment marks placed on the pump at disassembly to insure proper configuration. Tighten bolts (1) to a torque of 54 7 N m (40 4 lb ft).End By:a. install brake charging pump