PRODUCT SUPPORT PROGRAM FOR INSPECTING AND TIGHTENING FRONT WHEEL HUB BOLTS ON CERTAIN 785C OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSPECTING AND TIGHTENING FRONT WHEEL HUB BOLTS ON CERTAIN 785C OFF-HIGHWAY TRUCKS

Usage:

TEBE7594-00

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04May2018

V351

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Containment - Before/After (Limited distribution)	PRODUCT SUPPORT PROGRAM FOR INSPECTING AND TIGHTENING FRONT WHEEL HUB BOLTS ON CERTAIN 785C OFF-HIGHWAY TRUCKS
7551 4201 4215 3259 4251 4006		PS90876

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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 Containment Program can be administered either before or after a failure occurs. In either case the decision whether to apply the Program is made by the dealer and service rep. Obtain the service reps Goodwill Approver Code before completing the repair. EAME dealers should use their standard Industry Group specific goodwill approval codes. The Goodwill Approver Code must be included when submitting the claim.

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NOTE:	When reporting the repair, use "PS90876" as the Part Number and "7777" as the Group Number. If administered before failure, use "56" as Warranty Claim Description and "T" as the SIMS Description Code. If administered after failure, use "96" as Warranty Claim Description Code and use "Z" as the SIMS Description Code.
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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TERMINATION DATE

30Nov2018

PROBLEM

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The existing bolts for the front wheel hub may not be tightened to the correct torque on certain 785C Off-Highway Trucks. If the bolts are not tightened to the correct torque and loosen it will cause a failure of the conical bearing of the wheel hub, plus potential failure of other parts of the wheel.

AFFECTED PRODUCT

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Model	Identification Number
785C	APX02395-02404

PARTS NEEDED

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No parts needed for this program

ACTION REQUIRED

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Refer to the attached Rework Procedure.

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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%
0-6000 hrs, 0-12 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 12.0-hour job

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PARTS DISPOSITION

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Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

Rework Procedure

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Step 1: Checking torque of the bolts.
Drain the oil from the wheel hub. Remove the weight from the wheel (using suitable lifting device - jack). Check the torque of the hub bolts. If the torque is found to be out of specs - perform Step 2.

Step 2: Adjusting wheel bearing preload.
Remove the wheel from the machine. Drain the oil from the wheel. Adjust the bolts.
Refer to SENR1492 - Front Wheel Bearing ? Adjust.