PM820, PM822, and PM825 Cold Planer Machine Systems Caterpillar

Final Drive Planetary - Disassemble

Usage:

Disassembly Procedure

Show/hide table

Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	1P-2420	Transmission Repair Stand	1
B	6V-3009	Crossbar	1
	1P-0510	Driver Gp	1
	6V-5696	Bolt	2
	5P-8245	Washer	2
	4C-6142	Spacer	1
	⁽¹⁾ 126-7176	Forcing Screw	1
	126-7181	Sliding Plate	2
C	6V-5684	Bolt	2
	5P-8245	Hard Washer	2
	6V-3009	Crossbar	1
D	1P-0510	Driver Gp	1
E	8H-0663	Bearing Puller	1

Show/hide table

⁽¹⁾	Part of 126-7175 Push-Puller Tool Gp

Show/hide table




Illustration 1	g06333132

Attach the final drive to Tooling (A) or suitable fixture. The weight of the final drive is approximately 54 kg (119 lb).

Remove plug (1).

Show/hide table




Illustration 2	g06333137

Show/hide table

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 Tooling (B) to remove retaining ring (2).
Show/hide table

Illustration 3 g06333142
Remove plate (3).
Show/hide table

Illustration 4 g06333143

Note: Note the orientation of springs (4) for assembly purposes.
Remove springs (4).
Show/hide table

Illustration 5 g06333158
Attach Tooling (C) to the final drive. Use air pressure to unseat piston (5). Remove Tooling (C) and piston (5).
Show/hide table

Illustration 6 g06333172
Remove coupling (6).
Show/hide table

Illustration 7 g06333192

Show/hide table

Illustration 8 g06333239

Note: Note the orientation of friction discs (9) and plates (10) for assembly purposes.
Remove O-ring seals (7) and (8).
Remove friction discs (9) and plates (10).
Show/hide table

Illustration 9 g06333244
Invert the final drive. Remove plugs (11) and the O-ring seals.
Remove retaining ring (12) and cover (13).
Show/hide table

Illustration 10 g06333248
Remove O-ring seal (14).
Show/hide table

Illustration 11 g06333347
Remove planetary carrier assembly (15).
Show/hide table

Illustration 12 g06338698
Remove bolts (16) from planetary retainer (17).
Show/hide table

Illustration 13 g06335748
Place the final drive in a suitable press. The weight of the final drive is approximately 45 kg (100 lb). Use Tooling (D) and a suitable press to remove planetary retainer (17).
Show/hide table

Illustration 14 g06335751
Use Tooling (D) and a suitable press to remove hub (19) from housing (18). The weight of hub (19) is approximately 27 kg (60 lb).
Show/hide table

Illustration 15 g06335755
Use Tooling (D), (E), and a suitable press to remove bearing cone (20) from hub (19).
Show/hide table

Illustration 16 g06335756
Remove top half of Duo Cone seal (21) from hub (19).
Show/hide table

Illustration 17 g06335758
Remove O-ring seal (22) from top half of Duo Cone seal (21).
Show/hide table

Illustration 18 g06335759
Remove lower half of Duo Cone seal (23) from hub (19).
Show/hide table

Illustration 19 g06335762
Remove O-ring seal (24) from lower half of Duo Cone seal (23).
Show/hide table

Illustration 20 g06335765
Reposition bearing cone (25) to allow access to bearing cup (26). Remove bearing cup (26) from the housing.
Show/hide table

Illustration 21 g06335768
Invert housing (18). Remove retaining ring (27) and spacer (28).
Show/hide table

Illustration 22 g06335769
Invert the housing . Reposition bearing cone (25) to allow access to bearing cup (29). Remove bearing cup (29) and bearing cone (25).