D3G, D4G and D5G Hystat Track-Type Tractors Power Train Caterpillar

Final Drive and Sprocket - Disassemble

Usage:

D3G CFC

Disassembly Procedure

Show/hide table

Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	1P-0510	Driver Gp	1
B	8H-0663	Bearing Puller Gp	1
C	1P-2321	Combination Puller	1
D	5P-7311	Bearing Puller	1
	1P-7461	Leg	1
	1P-0074	Slide Hammer Puller Gp	1
E	138-7575	Link Bracket	3
F	1P-2420	Transmission Repair Stand	1
G	8B-7548	Push-Puller Tool Gp	1
	150-1782	Crossblock	1
	8B-7559	Adapter	2
	5F-7369	Puller Leg	2
	6B-6682	Full Nut	2
	3H-0465	Push-Puller Plate	2
H	1P-0520	Driver Gp	1
J	1H-3112	Bearing Cup Puller	1
J	1P-0074	Slide Hammer Puller Gp	1
K	1P-2322	Combination Puller	1

Start By:

Remove the final drive. Refer to Disassembly and Assembly, "Final Drive - Remove".

Show/hide table

NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat^® products. Dispose of all fluids according to local regulations and mandates.

Show/hide table




Illustration 1	g00833234

Show/hide table




Illustration 2	g00833235

Remove studs (1), two O-ring seals (2), O-ring seal (3), and O-ring seal (4) from the cage.
Use a suitable press and Tooling (A) in order to remove bearing (5) from cage (6).
Show/hide table

Illustration 3 g00833237
Use a press and Tooling (B) in order to remove race (7) from gear (8). Repeat this Step in order to remove the race on the other end of the gear.
Show/hide table

Illustration 4 g00833238
Remove gear (9) from the case.
Show/hide table

Illustration 5 g00833236
Use Tooling (A) and Tooling (C) to remove bearing (10) from the gear.
Show/hide table

Illustration 6 g00833239
Remove bolts (11) and cover (12) from the carrier assembly.
Show/hide table

Illustration 7 g00833486
Remove O-ring seal (13) from cover (12).
Show/hide table

Illustration 8 g00833489
Remove shaft (14) by pushing the shaft from the opposite side.
Show/hide table

Illustration 9 g00833490
Use Tooling (D) in order to remove race (15).
Show/hide table

Illustration 10 g00833492
Use Tooling (D) in order to remove bearing (16).
Show/hide table

Illustration 11 g00833494
Attach Tooling (E) to the carrier assembly. Use chains, Tooling (E), and a suitable lifting device in order to install the final drive assembly on Tooling (F).
Remove Tooling (E).
Show/hide table

Illustration 12 g00833495
Attach Tooling (E) to the top of the carrier assembly with three M10 by 35 mm bolts and washers. Use a chain and a suitable lifting device in order to support the carrier assembly. Remove bolts (17).
Show/hide table

Illustration 13 g00833496
Install two M12 by 175 mm forcing bolts and remove carrier assembly (18). The weight of the carrier assembly is approximately 75 kg (165 lb).
Show/hide table

Illustration 14 g00833497
Remove bolts (19).
Show/hide table

Illustration 15 g00833536
Install three M16 by 60 mm forcing bolts and remove plate (20).
Show/hide table

Illustration 16 g00833537
Use Tooling (D) and remove gear (21), the shaft, and the bearings.
Show/hide table

Illustration 17 g00833538
Use a suitable press in order to remove shaft (22) from bearing (23), and gear (21).
Place the shaft and the bearing in a position in order to remove the remaining bearing on the other end of the shaft.
Show/hide table

Illustration 18 g00833540
Use Tooling (D) in order to remove cup (24) from gear (21). Repeat this Step for the cup on the other side of the gear.
Repeat Steps 17 through 20 for the remaining two gears.
Show/hide table

Illustration 19 g00833542
Remove bolts (25) and retainer (26) from the hub.
Show/hide table

Illustration 20 g00833543
Use straps and a suitable lifting device in order to remove hub (27) and the ring gear. The weight of the hub and ring gear is approximately 27 kg (60 lb).
Show/hide table

Illustration 21 g00833544
Remove retainer (28). Remove hub (27) from ring gear (29).
Show/hide table

Illustration 22 g00833559
Install Tooling (G) and Tooling (H), as shown. Pull hub (30) and bearing (31) away from the spindle.
Show/hide table

Illustration 23 g00833560
Remove bearing (31) and O-ring seal (32). Install Tooling (E). Use chains, Tooling (E), and a suitable lifting device in order to remove hub (30). The weight of the hub is approximately 64 kg (140 lb).
Remove Tooling (E).
Show/hide table

Illustration 24 g00833561
Use Tooling (J) in order to remove cup (33).
Remove Duo-Cone Seal kit (34).
Repeat Steps 27 and 29 for the opposite side of the hub.
Show/hide table

Illustration 25 g00833562
Remove bolts (35).
Show/hide table

Illustration 26 g00833563
Remove Duo-Cone Seal kit (36).
Install Tooling (E) with two M12 by 40 mm bolts. Use chains, Tooling (E), and a suitable lifting device in order to remove spindle (37) from case (38). The weight of the spindle is approximately 43 kg (95 lb).
Remove Tooling (E).
Show/hide table

Illustration 27 g00833565
Use Tooling (H) and Tooling (K) in order to remove bearing cone (39).
Note: The removal procedure may cause damage to the bearing cone.
Show/hide table

Illustration 28 g00833635
Place the spindle in this position, as shown. Remove O-ring seal (40).