PRODUCT SUPPORT PROGRAM FOR REPLACING THE REAR AXLE HOUSING ON CERTAIN 785C OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE REAR AXLE HOUSING ON CERTAIN 785C OFF-HIGHWAY TRUCKS

Usage:

TEBE6741-01

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11Jan2018

(Revised 25Jul2018)

K680

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Before/After (Limited distribution)	PRODUCT SUPPORT PROGRAM FOR REPLACING THE REAR AXLE HOUSING ON CERTAIN 785C OFF-HIGHWAY TRUCKS
3260		PS45752

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NOTE:

Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.

NOTE:

This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS45752" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

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NOTE:

The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.

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NOTE:	This Revised Service Letter replaces the 11Jan2018 Service Letter. Changes have been made to the Service Claim Allowances.

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TERMINATION DATE

31May2019

PROBLEM

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The existing Rear Axle Housing can crack on certain 785C Off-Highway Trucks. If the existing housing fails, it can leak, resulting in unwanted machine downtime.

AFFECTED PRODUCT

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Model	Identification Number
785C	APX02031, 2074, 2119, 2124, 2134, 2344

PARTS NEEDED

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Qty	Part Number	Description
25	1H9696	SEAL-O-RING
6	2M9780	SEAL-O-RING-STOR
1	3D2824	SEAL-O-RING-STOR
6	3D3295	SEAL-O-RING
5	4J0522	SEAL-O-RING
2	4J0524	SEAL-O-RING
1	4J0527	SEAL-O-RING
3	4J0528	SEAL-O-RING
1	4L7711	SEAL-O RING
1	5P6603	STUD-TAPERLOCK
1	6D1355	SEAL-O-RING
24	6V8398	SEAL-O-RING-ORFS
1	7J9108	SEAL-O-RING-ORFS
4	8F6711	SEAL-O RING
3	0068352	SEAL-O-RING
2	0617540	SEAL-O-RING
1	5002538	HOUSING GP-AXLE
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 32% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.

ACTION REQUIRED

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Refer to SENR1490 and SENR1489 for the required Disassembly & Assembly and Testing & Adjusting procedures.

Remove the rear tires and rims. Remove the transmission. Remove the rear axle assembly by unbolting it from the A-Frame, lateral control rod, and suspension cylinders. Remove the differential, axle shafts, and wheel stations from the old axle housing and transfer into the new axle housing. Adjust the differential thrust pin. Reinstall the axle assembly and transmission into the truck.

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-40000 hrs, 0-84 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 118.0-hour job
Payload management plays a critical role in axle housing component life. Careful consideration should be given to the Customer's payload management. If the Customer demonstrates poor payload management, Dealer must ensure Customer is aware that they may have the claim allowances adjusted. Please refer to 10/10/20 payload policy.

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