PL61 Pipelayer Power Train Caterpillar

Final Drive and Sprocket - Disassemble

Usage:

PL61 6P2

Disassembly Procedure

Show/hide table

Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	439-3941	Link Brackets	3
B	1U-9200	Lever Puller Hoist Gp	1
B	386-6031⁽¹⁾	Lever Puller Hoist Gp	1
C	3E-3879	Eyebolt	1
D	160-2245	Abrasion Sleeve	1
E	150-1782	Crossblock	1
	360-6965	Hydraulic Cylinder Gp	1
	439-5245	Hydraulic Hand Pump Gp	1
F	1P-0520	Driver Gp	1
G	1P-2322	Combination Puller	1
H	439-3941	Link Brackets	2
J	1P-0074	Slide Hammer Puller Gp	1
J	4C-5655	Threaded Adapter	1
K	1P-0510	Driver Gp	1

Show/hide table

⁽¹⁾	This part number complies with European requirements.

Start By:

Remove the final drive and brake.
Remove the track brake.

Show/hide table

When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death.

Drain the final drive oil. Refer to Operation and Maintenance Manual, "Final Drive Oil - Change" for the correct draining procedure.
Show/hide table

Illustration 1 g03039906
Attach Tooling (A), Tooling (B), and a suitable lifting device to final drive (1). The weight of final drive (1) is approximately 590 kg (1300 lb). Position final drive (1) onto suitable cribbing.
Show/hide table

Illustration 2 g03039916
Remove bolts (2), cover (1), and the O-ring seal.
Show/hide table

Illustration 3 g03040636
Use Tooling (C) to remove sun gear shaft assembly (4).
Show/hide table

Illustration 4 g03041498
Attach Tooling (D) and a suitable lifting device to planetary assembly (6). The weight of planetary assembly (6) is approximately 109 kg (240 lb). Remove bolts (5) and planetary assembly (6).
Show/hide table

Illustration 5 g03041719
Remove O-ring seal (11).
Remove bolt (7), washer (8), retainer (9), and O-ring seal (10). Repeat for the remaining planetary gears.
Show/hide table

Illustration 6 g03041721

Show/hide table

Illustration 7 g03041776
Use a suitable press to remove shaft (12). Remove shaft (12), bearing cone (13), planetary gear (15), and bearing cone (17) from the planetary carrier. Remove bearing cup (14) and bearing cup (16) from planetary gear (15). Repeat for the remaining planetary gears.
Show/hide table

Illustration 8 g03042099
Attach Tooling (D) and a suitable lifting device to ring gear (18) and hub (19). The combined weight of ring gear (18) and hub (19) is approximately 40 kg (88 lb). Remove bolts (20) and retainer plate (21). Remove ring gear (18) and hub (19) as a unit.
Show/hide table

Illustration 9 g03042177
Attach Tooling (D) and a suitable lifting device to hub (19). The weight of hub (19) is approximately 18 kg (40 lb). Remove retaining ring (22). Remove hub (19) from ring gear (18).
Show/hide table

Illustration 10 g03042296
Attach Tooling (E) and Tooling (F) to separate bearing cone (23) and sprocket hub (24).
Show/hide table

Illustration 11 g03043624
Remove bearing cone (23).
Attach Tooling (A) and a suitable lifting device to sprocket hub (24). The combined weight of sprocket hub (24) and the sprocket segments is approximately 186 kg (410 lb). Remove sprocket hub (24) and the sprocket segments as a unit.
Show/hide table

Illustration 12 g03043818
Remove Duo-Cone seal (25) and bearing cups (26) from sprocket hub (24). Refer to Special Instruction, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals" for installation instructions.
Show/hide table

Illustration 13 g03043819
Remove Duo-Cone seal (27). Refer to Special Instruction, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals" for installation instructions.
Show/hide table

Illustration 14 g03043837

Show/hide table

Illustration 15 g03043839
Use Tooling (G) and Tooling (F) to remove bearing cone (28).
Attach Tooling (H) and a suitable lifting device to spindle (30). The weight of spindle (30) is approximately 127 kg (280 lb). Remove bolts (29), spindle (30), and O-ring seal (32).
Remove bearing outer race (31) from spindle (30).
Show/hide table

Illustration 16 g03043841
Remove bull gear (33).
Show/hide table

Illustration 17 g03043842
Use Tooling (G) and Tooling (F) to remove inner bearing (34) from bull gear (33).
Show/hide table

Illustration 18 g03043844
Remove thrust button (35).
Show/hide table

Illustration 19 g03043896
Attach Tooling (A) and a suitable lifting device to final drive case (36). The weight of final drive case (36) is approximately 75 kg (165 lb). Position final drive case (36) as shown.
Show/hide table

Illustration 20 g03043898
Remove bolts (38) and retainer (37).
Show/hide table

Illustration 21 g03043900
Use Tooling (J) to remove gear assembly (39) and bearing cup (40).
Show/hide table

Illustration 22 g03043901
Use Tooling (G) and Tooling (K) to remove bearing cones (41).
Show/hide table

Illustration 23 g03043902
Remove bearing cup (42).