349F and 352F Excavators Machine Systems Caterpillar

Final Drive - Assemble

Usage:

Specifications

Show/hide table




Illustration 1	g03844910

Show/hide table

Table 1
Specification for 480-7429 Final Drive Gp
Item	Qty	Part	Specification Description
1	20	143-0811 Bolt	Before assembly, the contact surfaces of the bolts, the washers, and the tightened parts must be clean and free from protective coating and oil. Torque to 120 ± 20 N·m (89 ± 15 lb ft).
2	2	096-3216 Socket Setscrew	Before assembly, apply blue Loctite 243 to the threads. Torque to 105 ± 20 N·m (77 ± 15 lb ft).
3	28	7Y-5217 Bolt	Torque to 530 ± 70 N·m (391 ± 52 lb ft).
4	2	2R-0525 Bearing Cup	Apply Loctite C5A Copper Anti-Seize to the inside diameter and outside diameter of the mating parts.
5	1	255-2272 Duo-Cone Seal Gp	Rubber toric seals and all surfaces in contact with the seals must be clean and dry at assembly. Apply a thin layer of 6V-4876 Lubricant on the surfaces of the metal seals that are in contact just before installation. The metal seal must be assembled square with the bore. The rubber toric seals must not bulge. The rubber toric seals must not be twisted.
6	2	346-5556 Bearing Cone	Apply Loctite C5A Copper Anti-Seize to the inside diameter and outside diameter of the mating parts.
7	1	7Y-0808 Shim	As required, use the following shim to adjust the clearance (D) from 1.0 to 2.6 mm (0.04 to 0.10 inch). Thickness is 1.6 (0.06 inch).
8	6	114-1541 Dowel Pin	Before assembly, apply Loctite C5A Copper Anti-Seize to the inside diameter and outside diameter of the mating parts.
9	20	6V-8200 Bolt	Torque to 105 ± 20 N·m (77 ± 15 lb ft).
10	2	3E-2338 Pipe Plug	Torque to 80 ± 10 N·m (59 ± 7 lb ft).
12	As required, use the following shims. If two shims are required, install the thinner shim next to coupling gear (11).
	1	7Y-1472 Shim	Thickness is 0.15 ± 0.03 mm (0.006 ± 0.001 inch).
	1	7Y-1473 Shim	Thickness is 0.30 ± 0.04 mm (0.012 ± 0.002 inch).
	1	7Y-1474 Shim	Thickness is 0.40 ± 0.05 mm (0.016 ± 0.002 inch).
	1	7Y-1475 Shim	Thickness is 0.50 ± 0.05 mm (0.020 ± 0.002 inch).
	1	7Y-1476 Shim	Thickness is 0.60 ± 0.06 mm (0.024 ± 0.002 inch).
	1	7Y-1477 Shim	Thickness is 0.70 ± 0.06 mm (0.028 ± 0.002 inch).
	1	7Y-1478 Shim	Thickness is 0.80 ± 0.07 mm (0.031 ± 0.003 inch).
	1	7Y-1479 Shim	Thickness is 1.00 ± 0.08 mm (0.039 ± 0.003 inch).
	1	7Y-1480 Shim	Thickness is 1.60 ± 0.10 mm (0.063 ± 0.004 inch).
13	12	6V-8133 Bolt	Before assembly, the contact surfaces of the bolts, the washers, and the tightened parts must be clean and free from protective coating and oil. Apply blue Loctite 243 to the threads. Torque to 900 ± 100 N·m (664 ± 74 lb ft).

Assembly Procedure

Show/hide table

Table 2
Required Tools
Tool	Part Number	Part Description	Qty
A	1P-2420	Transmission Repair Stand	1
B	138-7575	Link Brackets	2
C	4C-8359	Eyebolt	3
D	138-7574	Link Brackets	2
E	8T-9206	Duo-Cone Seal Installer As	1
F	5P-3931	Anti-Seize Compound	-
G	-	Loctite 242	-
H	-	Loctite High Flex GM	-
J	6V-2012	Depth Micrometer	1
K	-	Bar Stock 2 inch x 2 inch by 17 inch	1
L	6V-7059	Micrometer	1

Show/hide table




Illustration 2	g02431679

Apply Tooling (F) to the outside surface of bearing cups (52). Install bearing cups (52). Make sure that bearing cups (52) are properly seated.
Install O-ring seal (53).
Show/hide table

Illustration 3 g02431696
Apply Tooling (F) to the inside surface of bearing cone (50). Install bearing cone (50).
Note: Make sure the contact surfaces of bolts (48) and plate (49) are free of oil and debris.
Install plate (49) and bolts (48).
Use Tooling (E) to install Duo-Cone seal (51). Install Duo-Cone seal (51).
Show/hide table

Illustration 4 g02431676
Apply Tooling (F) to dowel pins (46). Install dowel pins (46).
Use Tooling (E) to install Duo-Cone seal (47). Install Duo-Cone seal (47).
Show/hide table

Illustration 5 g02431654
Attach Tooling (D) and a suitable lifting device to sprocket housing (40). The weight of sprocket housing (40) is 127 kg (280 lb). Install sprocket housing (40).
Apply Tooling (F) to the outside surface of bearing cone (45). Install bearing cone (45).
Show/hide table

Illustration 6 g02433384
Use Tooling (J) to measure Dimension (X) on coupling gear (43). Record Dimension (X).
Show/hide table

Illustration 7 g02433416

Show/hide table

Illustration 8 g02433419
Use Tooling (K) and a suitable press to apply force to bearing cone (45). Apply a force of 10000 kg (22045 lb) to the top of Tooling (K). Rotate sprocket housing (40) to seat the bearings.
Reduce the force on top of Tooling (K) to 3500 ± 350 kg (7715 ± 770 lb). Use Tooling (J) to measure Dimension (W). Record Dimension (W).
Show/hide table

Illustration 9 g02431653
Subtract Dimension (W) from Dimension (X) and record the difference as Dimension (V). The correct shim thickness is Dimension (V). Use Tooling (L) to measure the correct thickness of shims (44). The tolerance of Dimension (V) is 0 ± 0.05 mm (0 ± 0.002 inch). Install shims (44).
Note: Use a maximum of two shims (44). If two shims (44) are used to achieve the proper dimension, install the thinner of the two shims toward the coupling gear.
Show/hide table

Illustration 10 g02431650
Apply Tooling (G) to the threads of bolts (42) Tighten bolts (42) evenly and tighten the bolts in crisscross pattern. Install coupling gear (43) and bolts (42). Tighten bolts (42) to a torque of 900 ± 100 N·m (665 ± 75 lb ft).
Install O-ring seal (41) on sprocket housing (40).
Show/hide table

Illustration 11 g02431649
Thoroughly clean the mating surface of sprocket housing (40) and ring gear (39).
Apply Tooling (H) on the mating surface of ring gear (39). Attach Tooling (C) and a suitable lifting device to ring gear (39). The weight of ring gear (39) is approximately 82 kg (180 lb). Install ring gear (39).
Show/hide table

Illustration 12 g02431642

Show/hide table

Illustration 13 g00513451
Install thrust washer (38), bearings (37), planetary gear (36), thrust washer (35), planetary shaft (33). Install spring pin (34) even with the outside surface of the carrier. Orient the split in the spring pin horizontally to the carrier. Use a suitable punch and a suitable hammer to install spring pin (34). Make a stake mark on each side of the spring pin hole in the carrier. Each stake mark should be approximately 1.5 to 3.00 mm (0.59 to 0.118 inch) from the spring pin hole. Repeat for the remaining planetary gears.
Show/hide table

Illustration 14 g02431641
Attach Tooling (C) and a suitable lifting device to carrier assembly (32). The weight of carrier assembly (32) is approximately 64 kg (140 lb). Remove carrier assembly (32).
Show/hide table

Illustration 15 g02431639
Install spacer (31).
Show/hide table

Illustration 16 g02431636
Install sun gear (30) and retaining ring (29).
Show/hide table

Illustration 17 g02431600

Show/hide table

Illustration 18 g00513451
Install thrust washer (28), bearing (27), planetary gear (26), thrust washer (25), planetary shaft (23). Install spring pin (24) even with the outside surface of the carrier. Orient the split in the spring pin horizontally to the carrier. Use a suitable punch and a suitable hammer to install spring pin (24). Make a stake mark on each side of the spring pin hole in the carrier. Each stake mark should be approximately 1.5 to 3.00 mm (0.59 to 0.118 inch) from the spring pin hole. Repeat for the remaining planetary gears.
Show/hide table

Illustration 19 g02431519
Attach Tooling (C) and a suitable lifting device to carrier assembly (22). The weight of carrier assembly (22) is approximately 45 kg (100 lb). Install carrier assembly (22).
Install spacer (21).
Show/hide table

Illustration 20 g02431518
Install sun gear (20) and retaining ring (19).
Show/hide table

Illustration 21 g02431405
Install thrust washer (18), bearing (16), planetary gear (14), thrust washer (13), and retaining ring (12). Repeat for the remaining planetary gears.
Install spacer (17).
Show/hide table

Illustration 22 g01207864
Install carrier assembly (11).
Install sun gear (10).
Show/hide table

Illustration 23 g02433426
Install ring gear (9) and socket head bolts (8).
Show/hide table

Illustration 24 g02433423
Use a suitable straight edge and Tooling (J) to measure Dimension (Y). Subtract the thickness of the suitable straight edge from Dimension (Y) and record this measurement as Dimension (R).
Show/hide table

Illustration 25 g01207835
Install spacer (6).
Show/hide table

Illustration 26 g02433424
Use a suitable straight edge and Tooling (J) to measure Dimension (Z). Subtract the thickness of the suitable straight edge from Dimension (Z) and record this measurement as Dimension (S).
Show/hide table

Illustration 27 g02433436

Show/hide table

Illustration 28 g02431238
Subtract Dimension (R) from Dimension (S) and record this as Dimension (M). Add shims (7) to achieve Dimension (M). Install shims (7).
Note: Dimension (M) is 1.00 to 2.60 mm (0.039 to 0.102 inch).
Show/hide table

Illustration 29 g01207801
Apply Tooling (H) to the mating surface of cover (5) and the ring gear.
Attach Tooling (B) and a suitable lifting device to cover (5). The weight of cover (5) is approximately 52 kg (115 lb). Install cover (5), the washers, and bolts (4). Tighten bolts (4) to a torque of 900 ± 100 N·m (665 ± 75 lb ft).
Show/hide table

Illustration 30 g01207796
Apply Tooling (G) to the threads of setscrews (3). Install setscrews (3) even with the cover.
Show/hide table

Illustration 31 g02431160
Attach a suitable lifting device to the final drive, and turn final drive (2) over 180 degrees. The weight of final drive (2) is approximately 590 kg (1300 lb).
Install coupling (1) in final drive (2).