PRODUCT SUPPORT PROGRAM FOR REWORKING THE FRONT TRACK ROLLER FRAME ON CERTAIN D8T, D9T, AND D9R TRACK-TYPE TRACTORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REWORKING THE FRONT TRACK ROLLER FRAME ON CERTAIN D8T, D9T, AND D9R TRACK-TYPE TRACTORS

Usage:

REBE2342-00

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09Aug2007

U-391

A-325

D-323

O-348

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR REWORKING THE FRONT TRACK ROLLER FRAME ON CERTAIN D8T, D9T, AND D9R TRACK-TYPE TRACTORS
4151		PS42488

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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 "PS42488" 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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TERMINATION DATE

31Aug2009

PROBLEM

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The existing Front Track Roller Frame can fail at the side weld of top plate weld joint on certain D8T, D9T, and D9R Track-Type Tractors.

AFFECTED PRODUCT

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Model	Identification Number
D8T	KPZ02046, 2048-2174, 2176-2186, 2190, 2192-2194, 2196-2197, 2199-2204, 2208, 2210, 2212-2214, 2216-2217, 2219, 2222, 2254
D9R	WDM00825-00859, 861-897, 900-906, 908-909
D9T	RJS00851-00881, 883, 887, 892

PARTS NEEDED

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No parts needed for this program

ACTION REQUIRED

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1. Use a suitable lifting device to raise and support the track over the Front Track Roller Frame. Refer to the Operation and Maintenance Manual to loosen the track as necessary. Note that disconnecting the master link of the track is not required.
2. Visually inspect weld for visible undercut along the cover plate.
3. Visually inspect weld for lack of fusion along the cover plate on both sides of the plate.
4. If necessary, remove bad weld joint and re-weld, using the weld procedures outlined in the General Weld Specifications section below.
5. Adjust the track. Refer to the Operation and Maintenance Manual.

General Weld Specifications:

THE FOLLOWING ARE WELDING PROCESSES THAT ARE PREFERRED FOR THIS REPAIR:

Gas Metal Arc Welding (GMAW)
Use 35 +/- 5 CFH of 75% Argon and 25% CO2.
Mixed Shielding Gas
"AWS Class ER70S-3"

Flux Cored Arc Welding (FCAW)
"AWS Class E71T-1"
Use the manufacture's suggestion for the gas mixture and the flow.

THE FOLLOWING ARE WELDING PROCESSES THAT ARE ACCEPTABLE FOR THIS REPAIR:

Shielded Metal Arc Welding (SMAW)
Use E7018 Electrode
Direct Current Electrode Positive

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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%
0-10000 hrs, 0-60 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%