TUBE AS 5138075 - Caterpillar

Illustration 6 g01969515
Typical example
If necessary, follow Step 1.a through Step 1.d to install gear (21) to air compressor (6).
Ensure that the shaft of air the compressor is clean, free from damage, and dry. Ensure that the gear is clean, free from damage, and dry.
Install gear (21) and a new spring washer (22) (not shown) to the shaft of the air compressor.
Apply Tooling (D) to the threads of the shaft of the air compressor. Install nut (23) to the shaft of the air compressor.
Use a suitable tool to prevent the shaft of the air compressor from rotating. Tighten nut (23) to a torque of 190 N m (140 lb ft).
Use Tooling (E) to lubricate a new O-ring seal (24). Install the O-ring seal to air compressor (6).
Use Tooling (A) to rotate the crankshaft so that number one piston is at the top center position on the compression stroke. Refer to Systems Operation, Testing and Adjusting, "Finding Top Center Position for No.1 Piston" for the correct procedure.Note: The air compressor must be timed with the engine to minimize engine vibration.
Illustration 7 g02021419
Illustration 8 g01970516
Typical example
Ensure that Tooling (B) is installed in Hole (X) in the cylinder block. Use Tooling (B) to lock the crankshaft in the correct position.Note: Do not use excessive force to install Tooling (B). Do not use Tooling (B) to hold the crankshaft during repairs.
Rotate the crankshaft of the air compressor until timing Mark (Y) is within (+ / -) 6 degrees of Position (Z).
Illustration 9 g01969454
Typical example
Illustration 10 g03360864
Compressor oil feed tube assembly
If necessary, install studs (17) to the front housing. Tighten the studs to a torque of 25 N m (221 lb in).
If necessary, loosely install tube assembly (12) to the connection on the cylinder block. Tighten nut (8) finger tight.
Align air compressor (6) with studs (17). Install the air compressor to the front housing. If necessary, rotate the crankshaft of the air compressor to allow the gears to align.Note: Ensure that timing Mark (Y) is aligned with timing Marks (Z). Refer to Illustration 8 for the correct position of timing marks.
Install nuts (18). Tighten the nuts to a torque of 78 N m (58 lb ft).
If necessary, follow Step 10.a through Step 10.c to install cover (19).
Use Tooling (E) to lubricate a new O-ring seal (16). Install the O-ring seal to cover (19).
Install cover (19) to air compressor (6).
Install bolts (20). Tighten the bolts to a torque of 16 N m (142 lb in).
Illustration 11 g02022020
Illustration 12 g03360862
Typical example
Position support bracket (14) onto air compressor (6). Install bolts (13) finger tight.
Install bolts (15) finger tight.
Tighten bolts (15) to a torque of 44 N m (32 lb ft).
Tighten bolts (13) to a torque of 22 N m (195 lb in).Note: Ensure that the air compressor is not stressed as the bolts are tightened.
Connect the air line to port (5) (not shown) and the air line to port (7) in the air compressor. Ref to (OEM) for the correct procedure.
Connect coolant hose (3) and coolant hose (4) to the air compressor. Slide hose