NUT 2M5656 - Caterpillar

Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1855 Retaining Ring Pliers 1
B 9S-9152 Bearing Puller Gp 1
C 1P-0510 Driver Gp 1
D 1P-1861 Retaining Ring Pliers 1
E 1P-1863 Retaining Ring Pliers 1
F 8B-7551 Bearing Puller Gp 1
G 277-7088 Spanner Socket 1
H 8H-0663 Bearing Puller Gp 1 Start By:
Remove the air starting motor. Refer to Disassembly and Assembly, "Air Starting Motor - Remove". Note: The individual parts of the air starting motor are nonserviceable. An overhaul kit must be purchased in order to service the air starting motor.
Mark all the adjacent parts of the housing for the air starting motor for assembly purposes.
Illustration 1 g01170823
Remove bolts (1) and remove drive housing (2) from gearbox housing (3).
Illustration 2 g01170843
Illustration 3 g01171324
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Note: When bolt (4) is removed spring tension will be released from drive assembly (7).
Position drive housing (2) into a suitable press. Remove bolt (4) and washer (5). Remove pinion gear (6). Slowly release the suitable press in order to release the spring tension on drive assembly (7).
Illustration 4 g01170867
Remove drive assembly (7), spring (8), and washer (9) from drive housing (2).
Illustration 5 g01171383
Use Tooling (A) and remove retaining ring (10) from drive assembly (7).
Illustration 6 g01171410
Use Tooling (B), Tooling (C), and a suitable press in order to remove bearing (11) from drive assembly (7).
Illustration 7 g01171415
Remove spacer (12). Remove lip seal (13).
Illustration 8 g01171417
Use Tooling (C) and a suitable press in order to remove spur gear (14) from drive housing (2).
Illustration 9 g01171422
Use Tooling (D) to remove retaining ring (15). Use Tooling (E) to remove retaining ring (16).
Illustration 10 g01171531
Use Tooling (C) and a suitable press in order to remove bearing (17).
Illustration 11 g01171424
Use Tooling (F), Tooling (C), and a suitable press in order to remove bearing (18) from spur gear (14).
Illustration 12 g01171533
If necessary, remove bearing (19) from drive housing (2).
Illustration 13 g01171573
Remove bolts (20) and remove gearbox housing (3).
Illustration 14 g01171575
Remove ring gear (21).
Illustration 15 g01171580
Remove allen head bolts (22).
Illustration 16 g01171591
Remove planetary assembly (23). Remove O-ring seal (24).
Illustration 17 g01171739
Bend the tab of lock washer (26) out of slot in spanner nut (25).
Illustration 18 g01171744
Position planetary assembly (23) into a soft jawed vise. Use Tooling (G) and remove spanner nut (25).
Illustration 19 g01171752
Remove lock washer (26). Remove spur gear (27) and the woodruff key.
Illustration 20 g01171762
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Use a suitable press and remove planetary carrier assembly (29) from bearing housing (28).
Illustration 21 g01171769
Use Tooling (D) and remove retaining ring (30) from bearing housing (28). Remove bearing (31).
Illustration 22 g01171772
Remove spacer (32), washer (33), and spring washers (34).
Illustration 23 g01171774
Use Tooling (H) and a suitable press in order to remove bearing (35) from planetary carrier assembly (29).
Illustration