3778485 LINER-CYLINDER Caterpillar parts
793F, 793F CMD, 793F OEM, 795F AC, 795F XQ, 797, 797B, 797F, C175-16, C175-20
Rating:
Alternative (cross code) number:
CA3778485
377-8485
3778485
CA3778485
377-8485
3778485
Weight: 55 pounds 24 kg.
GENERATOR SET, TRUCK,
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2024-06-24
2021-11-17
Compatible equipment models: 3778485:
Information:
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7576 Link Bracket 3
B 1U-7234 Feeler Gauge 1
Thoroughly clean the mating surfaces of the differential and bevel gear and of the axle housing. Replace O-ring seals with new parts.
Illustration 1 g01447852
Install O-ring seal (14) on the differential and bevel gear.
Illustration 2 g01448013
Attach Tooling (A) and a suitable lifting device to differential and bevel gear (13). The weight of differential and bevel gear (13) is approximately 816 kg (1800 lb).
Use Tooling (A) and the suitable lifting device in order to install differential and bevel gear (13) in the axle housing.
Illustration 3 g01447841
Install bolts (12). Tighten bolts (12) to a torque of 300 30 N m (221 22 lb ft). Then, tighten bolts (12) for an additional 120° 10°.
Illustration 4 g01447738
Position bracket (10) and all of the tubes as one unit.
Install bolts (9) in order to fasten bracket (10) to the differential and bevel gear. Tighten bolts (9) to a torque of 300 30 N m (221 22 lb ft). Then, tighten bolts (9) for an additional 120° 10°.
Connect tube assemblies (7) and (8) to each service brake.
Connect clips (11) to tube assemblies (7) and (8).
Illustration 5 g01447728
Install guard assemblies (6) on the rear axle assembly.
Illustration 6 g01447722
Install O-ring seal (5) on pin (4).
Lubricate pin (4) and O-ring seal (5) with the oil that is being sealed. Install pin (4) in the axle housing.
Illustration 7 g01448031
Install cover (1) without shims.
Install bolts (2). Tighten bolts (2) enough to remove the end play between pin (4) (not shown) and cover (1).
Use Tooling (B) in order to measure the gap between cover (1) and the axle housing. Record this measurement. Use this measurement to determine the correct thickness of required shims.
Install a thickness of shims that will establish a −0.03 mm (−0.001 inch) preload to a 0.03 mm (0.001 inch) end play in pin (4) (not shown).
Illustration 8 g01447717
Install cover (1) with the measured amount of shims (3). Install bolts (2). End By:
Install the front support for the rear axle. Refer to Disassembly and Assembly, "Trunnion Support (Oscillating Axle, Front) - Install".
Install the axle shafts. Refer to Disassembly and Assembly, "Axle Shaft - Remove and Install".
Install the axle. Refer to Disassembly and Assembly, "Oscillating Axle (Rear) - Install" or, refer to Disassembly and Assembly, "Fixed Axle (Front) - Remove and Install".
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7576 Link Bracket 3
B 1U-7234 Feeler Gauge 1
Thoroughly clean the mating surfaces of the differential and bevel gear and of the axle housing. Replace O-ring seals with new parts.
Illustration 1 g01447852
Install O-ring seal (14) on the differential and bevel gear.
Illustration 2 g01448013
Attach Tooling (A) and a suitable lifting device to differential and bevel gear (13). The weight of differential and bevel gear (13) is approximately 816 kg (1800 lb).
Use Tooling (A) and the suitable lifting device in order to install differential and bevel gear (13) in the axle housing.
Illustration 3 g01447841
Install bolts (12). Tighten bolts (12) to a torque of 300 30 N m (221 22 lb ft). Then, tighten bolts (12) for an additional 120° 10°.
Illustration 4 g01447738
Position bracket (10) and all of the tubes as one unit.
Install bolts (9) in order to fasten bracket (10) to the differential and bevel gear. Tighten bolts (9) to a torque of 300 30 N m (221 22 lb ft). Then, tighten bolts (9) for an additional 120° 10°.
Connect tube assemblies (7) and (8) to each service brake.
Connect clips (11) to tube assemblies (7) and (8).
Illustration 5 g01447728
Install guard assemblies (6) on the rear axle assembly.
Illustration 6 g01447722
Install O-ring seal (5) on pin (4).
Lubricate pin (4) and O-ring seal (5) with the oil that is being sealed. Install pin (4) in the axle housing.
Illustration 7 g01448031
Install cover (1) without shims.
Install bolts (2). Tighten bolts (2) enough to remove the end play between pin (4) (not shown) and cover (1).
Use Tooling (B) in order to measure the gap between cover (1) and the axle housing. Record this measurement. Use this measurement to determine the correct thickness of required shims.
Install a thickness of shims that will establish a −0.03 mm (−0.001 inch) preload to a 0.03 mm (0.001 inch) end play in pin (4) (not shown).
Illustration 8 g01447717
Install cover (1) with the measured amount of shims (3). Install bolts (2). End By:
Install the front support for the rear axle. Refer to Disassembly and Assembly, "Trunnion Support (Oscillating Axle, Front) - Install".
Install the axle shafts. Refer to Disassembly and Assembly, "Axle Shaft - Remove and Install".
Install the axle. Refer to Disassembly and Assembly, "Oscillating Axle (Rear) - Install" or, refer to Disassembly and Assembly, "Fixed Axle (Front) - Remove and Install".
Caterpillar parts catalog:
Parts liner Caterpillar catalog:
2117826
LINER-CYLINDER
3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5130, 5130B, 5230, 5230B, 776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793B, 793C, 793D, 797...
3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5130, 5130B, 5230, 5230B, 776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793B, 793C, 793D, 797...
1189494
LINER-CYLINDER
3508B, 3512, 797, G3516
3508B, 3512, 797, G3516
1175764
LINER
623E, 623F, 623G, 793C, 795F AC, 795F XQ, 797, 797B, 797F, M315, M315C, M315D, M316C, M316D, M317D 2, M318, M318C, M318C MH, M318D, M318D MH, M322D MH, MH3049, MH3059
623E, 623F, 623G, 793C, 795F AC, 795F XQ, 797, 797B, 797F, M315, M315C, M315D, M316C, M316D, M317D 2, M318, M318C, M318C MH, M318D, M318D MH, M322D MH, MH3049, MH3059
1453774
LINER-BEARING
365C, 365C L, 365C L MH, 374D L, 550, 550B, 560B, 570, 570B, 580, 580B, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 797, 797B, 797F, 844, 844H, 844K, 990 II, 990H, 993K, 994F, 994H, M320, M322C,...
365C, 365C L, 365C L MH, 374D L, 550, 550B, 560B, 570, 570B, 580, 580B, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 797, 797B, 797F, 844, 844H, 844K, 990 II, 990H, 993K, 994F, 994H, M320, M322C,...
1527936
LINER-CAB
797, 797B
797, 797B
2233892
LINER AS
797B
797B
2233893
LINER AS
797B
797B
2233894
LINER AS
797B
797B
2233895
LINER AS
797B
797B
3047487
LINER-CAB
793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797F
793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797F
3890506
LINER AS-CAB
793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797F
793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797F
3066616
LINER
793F
793F
3271099
LINER
3508C, 3512C, 3516C
3508C, 3512C, 3516C
1793168
LINER
3606, 3608, C280-12, C280-6, C280-8
3606, 3608, C280-12, C280-6, C280-8
1953507
LINER
3618
3618
1793167
LINER
3606, 3608, 3612, 3616, C280-12, C280-16, C280-6, C280-8
3606, 3608, 3612, 3616, C280-12, C280-16, C280-6, C280-8
1161042
LINER-CYLINDER
3606, 3608, 3612, 3616
3606, 3608, 3612, 3616
8B0375
LINER
583H, D342, D342C, D364, D375D, D397D, D8H, D8K, G342C
583H, D342, D342C, D364, D375D, D397D, D8H, D8K, G342C
5S3772
LINER
16, 1693, 631C, 633C, 641, 641B, 650B, 657, 657B, 769, 772, 773, 824B, 834, 983, 988, 992, D343, D346, D348, D349, G343
16, 1693, 631C, 633C, 641, 641B, 650B, 657, 657B, 769, 772, 773, 824B, 834, 983, 988, 992, D343, D346, D348, D349, G343
5S6346
LINER
12F, 14E, 1673C, 1674, 3304, 3306, 561C, 920, 941, 950, 955K, 955L, 966C, 977K, D334, D4D, D5, D6C
12F, 14E, 1673C, 1674, 3304, 3306, 561C, 920, 941, 950, 955K, 955L, 966C, 977K, D334, D4D, D5, D6C
1S2587
LINER CYLINDER
D353C, D379, D379A, D398A, D399, D9G, D9H, G353D, G379, G398, G399
D353C, D379, D379A, D398A, D399, D9G, D9H, G353D, G379, G398, G399
4331391
LINER-CYLINDER
C140-16
C140-16
8N9174
LINER-CYLINDER BLOCK
D353C, D379B, D398B, D399
D353C, D379B, D398B, D399