BRAKE GP-PARKING 9C9835 - Caterpillar

1. Disconnect hose assembly (1) for the transmission oil filter from the pump.2. Disconnect hose assembly (2) for the transmission oil return from the pump. 3. Disconnect tube assembly (5) for the torque converter oil scavenge from the pump.4. Disconnect tube assembly (4) for the transmission oil supply from the pump.5. Remove bolts (3) and remove the pump from the torque converter.Install Transmission Oil Pump
1. Put a new gasket on the pump and put the pump in position in the torque converter housing. 2. Install bolts (1) and tighten to a torque of 36 2 lb.ft. (46 3 N m).3. Connect tube assemblies (2) and (3) to the pump. 4. Connect hose assemblies (4) and (5) to the pump.5. Fill the transmission with transmission oil to the correct level.Disassemble Transmission Oil Pump
start by:a) remove transmission oil pump 1. Loosen nut (1) and pull gear (2) loose with tool (A).2. Remove tooling (A), nut (1) and gear (2). 3. Loosen the eight bolts on the back of plate (6).4. Remove key (3) from the shaft.5. Remove plate assembly (5) from the pump.6. Remove seal (4) from plate assembly (5). 7. Remove case (7) and remove O-ring seals (8) from each side of the case. 8. Remove bolts (14) from the pump.9. Remove spacer assembly (13), shaft (9), gear (11), shaft (10) and gear (12) as a unit. 10. Remove shaft (10) and gear (12) from spacer assembly (13).11. Remove ring (15) and gear (11) from shaft (9). 12. Remove ring (16) on each side of gear (12) from shaft (10).13. Remove gear (12) from shaft (10) and remove the pin from shaft (10). 14. Remove pin (17) and ring (18) from shaft (9).15. Remove shaft (9) from the bottom of spacer assembly (13).16. Remove the ball from shaft (9). 17. Remove gears (20) and case (21) from plate (6).18. Remove O-ring seals (19) from each side of case (21).Assemble Transmission Oil Pump
1. Make a replacement of pins (2) in plate (5) if necessary.2. Install O-ring seals (1) on each side of case (3).3. Put case (3) and gears (4) in position on plate (5). 4. Make a replacement of pins (6) in spacer assembly (7) if necessary.5. Install ring (12), pin (8), gear (11) and ring (9) on shaft (10).6. Install shaft (10) in spacer assembly (7) and install the ball that holds the shaft in position. 7. Install spacer assembly (7) on case (3) and turn shaft (10) until the ball fits into the groove (slot) in gear (4). 8. Install the pin in shaft (13) that holds gear (15).9. Install gear (15) on shaft (13) and install the two rings (14) on each side of the gear.10. Install shaft (13) in spacer assembly (7). 11. Install O-ring seals (16) on each side of case (17).12. Install case (17) on the spacer assembly. 13. Install the lip type seal in plate assembly (18) with tooling (A). Make sure that the spring loaded lip of the seal