AFTERCOOLER AIR LINES 9S8725 - Caterpillar

1. Remove two hydraulic lines (3).2. Remove two nuts (2) and hydraulic oil pump (1).Install Hydraulic Oil Pump
1. Put hydraulic oil pump (1) in position on the power take-off drive and install the two nuts that hold it.2. Connect the two hydraulic lines to the pump.Disassemble Hydraulic Oil Pump
start by: a) remove hydraulic pump1. Put marks on pump body and cover so the parts can be assembled correctly.2. Disassemble the pump in number sequence. At assembly, tighten bolts (1) to a torque of 150 10 lb.ft. (203.4 13.6 N m). Assemble Hydraulic Pump
TYPICAL EXAMPLE1. Assemble the inserts (1) and vanes (2) in the rotor (5) and install the rotor in ring (4). The sharp edge of the vanes must be on the same side as the direction shown by the arrows on the ring and rotor for correct pump rotation.2. Assemble the pressure plate (3), ring (4) and wear plate (6).
TYPICAL EXAMPLE The passage (A) and passages (C) are on an angle toward the direction of pump rotation. The sharp edge of the vanes (B) must be toward the direction of pump rotation.
TYPICAL EXAMPLE3. If new back-up rings (D) and O-ring seals (E) are installed on the pressure plate, they must be installed as shown. Put lubrication on the parts and install the back-up rings so the sides that make a curve in are next to the O-ring seals.
TYPICAL EXAMPLE4. Check to see that pins (9) in cartridge (7) are in alignment with the holes in cover (10). Assemble body (8), cartridge (7) and cover (10). Tighten the bolts to a torque of 55 5 lb.ft. 75.2 6.7 N m).ROTATION:Pump rotation, clockwise (CW), or counterclockwise (CCW), is the direction the pump turns when viewed from the drive shaft end. See the TESTING AND ADJUSTING and SPECIFICATIONS for pump rotation.GENERAL:1. Put lubricant in pump. Pump shaft must turn by hand.2. Close outlet port of pump.3. Use air or oil at 30 psi (206.9 kPa) (2.11 kg/cm2) to check seals for leaks. Connect air or oil supply to inlet port of pump.end by: a) install hydraulic pump