CAMSHAFT AS 8N9245 - Caterpillar

Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1854 Retaining Ring Pliers 1
B - Plate
51.0 by 102.0 by 6.0 mm (2.00 by 4.00 by 0.25 inches) 2
C 1P-1857 Retaining Ring Pliers 1 Start By:
Remove the air starting motor. Refer to Disassembly and Assembly, "Air Starting Motor - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Several different air starting motors are available for use. An example of disassembling a typical air starting motor gp is described below.
Illustration 1 g00925011
Remove elbow (1) and bracket (2) from motor housing (3).
Illustration 2 g00925012
To ensure correct assembly, mark the position of motor housing (3) in relation to gear case (6). Remove bolts (4). Remove gear case (6) and drive housing (5) as a unit.
Illustration 3 g00925015
Use Tooling (A) to remove retaining ring (8) from drive gear (7).
Illustration 4 g00925059
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Note: Bolt (9) has left hand threads.
Remove bolt (9) and washer (10). Remove drive pinion (11), the spring sleeve, and the pinion spring. To ensure correct assembly, mark the position of drive housing (5) in relation to gear case (6). Remove bolts (12) and drive housing (5) from gear case (6).
Illustration 5 g00925061
Remove O-ring seal (13) from drive housing (5).
Illustration 6 g01142879
The drive shaft, the piston, and the drive gear are under a spring force. Slowly release the spring force before you remove these components.
Place Tooling (B) between drive gear (7) and piston (14). Use a suitable press to compress the return spring. Remove retaining ring (15) that holds the drive shaft and the piston in drive housing (5).
Illustration 7 g00925068
Slowly release the suitable press in order to remove the force of return spring (16). Remove Tooling (B). Remove retaining ring (15). Remove the drive gear, piston (14), and the drive shaft from drive housing (5) as a unit. Remove return spring (16).
Illustration 8 g00925083
Loosen the bolt for the drive gear with a 5/16 inch hex wrench until the bolt moves freely. Remove drive shaft (17) and piston (14) from drive gear (7) as a unit.
Illustration 9 g01143104
Remove bulkhead (18) from piston (14). Remove O-ring seals (19) from bulkhead (18).
Illustration 10 g00925092
Remove retaining ring (20) from piston (14). Remove the piston from drive shaft (17).
Illustration 11 g00925095
Remove O-ring seal (22) and lip seal (21) from piston (14).
Illustration 12 g01052459
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Remove retaining ring (31), cup (30), spring (29), driven clutch jaw (28), driving clutch jaw (27), bearing (26), washer (25), lockwasher (24), and bolt (23) from drive shaft (17).
Illustration 13 g00925104
Remove retaining ring (32) and bearing (33) from drive shaft (17). Note: Note: Do not reuse retaining ring (32).
Illustration 14 g00925105
Use Tooling (C) to remove lock ring (35). Remove bearing (34) from gear case (6).
Illustration 15 g00925107
Remove spring seat (36) and