PIN AS 3863778 - Caterpillar

Removal Procedure
Do not disconnect the air lines until the air pressure in the system is at zero. If hose is disconnected under pressure it can cause personal injury.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines.Dispose of all fluids according to local regulations and mandates.
Remove the air pressure from the air tank and drain the coolant from the cooling system.
Illustration 1 g00484206
Disconnect hose (1), (2) and (9) from the air compressor. Remove tube (4) from the air compressor.
Remove bolt (5) and the washer. Remove clamp (7) from the breather tube. Move the breather tube aside.
Remove three bolts (3) and the washers that hold the air compressor to the timing gear housing.
Remove two bolts (6) and remove air compressor (8) and the gasket from the engine.Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Check the condition of the gaskets and O-ring seals. If gaskets or O-ring seals are damaged, use new parts for replacement.
Illustration 2 g00484206
Use three bolts (3) and the washers to install air compressor (8). Apply 4C-4030 Thread Lock Compound to the threads of two bolts (6). Torque bolts (6) to 160 30 N m (118 22 lb ft).
Install clamp (7) for the breather tube with bolt (5) and the washer.
Install tube (4) and connect hoses (9), (2) and (1) to air compressor (8) .