DRUM-STEER-YM 2167821 - Caterpillar

Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 439-3938 Link Bracket 3
B 1P-0074 Slide Hammer Puller Gp 1
C FT-1934 Puller Beam 1
- (16 mm x 190.5 mm) Bolt 4
5P-8247 Hard Washer 4
6V-3170 Double Acting Cylinder 1
9U-6600 Hand Hydraulic Pump 1
1P-0521 Driver Group 1
D 439-3940 Bracket As 2 Start By:
Remove the final drive.
Illustration 1 g01234745
Attach Tooling (A) and a suitable lifting device to carrier (1). The weight of carrier (1) is approximately 50 kg (110 lb).
Remove bolts (2) and carrier (1) from sprocket hub (3). Position carrier (1) onto suitable cribbing.
Illustration 2 g01234760
Remove bolt (4), the washer, the retainer, and the O-ring seal from carrier (1).
Use a suitable press to remove shaft (5) from carrier (1).
Repeat Steps 3 and 4 for the remaining shafts.
Illustration 3 g06077476
Remove planetary gear (8) from carrier (1).
Remove bearing cones (6) and (9) from planetary gear (8).
Remove bearing cups (7) from planetary gear (8).
Repeat Steps 6 through 8 for the remaining planetary gears.
Illustration 4 g00988981
Remove bolts (10) and retainer (11).
Remove ring gear hub (12) and ring gear (13).
Illustration 5 g00988984
Remove ring (14) and ring gear hub (12) from ring gear (13).
Illustration 6 g00988985
Use Tooling (B) to remove bushing (15) and lip-type seal (16) (not shown).
Illustration 7 g00988979
Raise the temperature of bearing cone (17).
Use Tooling (C) to remove bearing cone (17) from the spindle.Note: Do not lift the sprocket hub so that the sprocket hub contacts the fittings that are on the hydraulic cylinder. Damage to the fittings could occur.
Remove Tooling (C).
Illustration 8 g01235181
Attach Tooling (D) and a suitable lifting device to sprocket hub (3). The weight of sprocket hub (3) is approximately 135 kg (298 lb). Remove sprocket hub (3) from the spindle.
Illustration 9 g01235238
Remove bearing cups (18) and (19) from sprocket hub (3).
Remove Duo-cone seal (20) from sprocket hub (3).
Illustration 10 g01235241
Remove Duo-cone seal (22) from spindle (23).
Remove bearing cone (21) from spindle (23).