PRODUCT SUPPORT PROGRAM FOR REPLACING THE FAILED TRACK ADJUSTMENT GROUP ON CERTAIN 385B, 385BL, 5090B, 385C, 385CL, 385CL MH AND 385C FS EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE FAILED TRACK ADJUSTMENT GROUP ON CERTAIN 385B, 385BL, 5090B, 385C, 385CL, 385CL MH AND 385C FS EXCAVATORS [REBE3061]

UNDERCARRIAGE

PRODUCT SUPPORT PROGRAM FOR REPLACING THE FAILED TRACK ADJUSTMENT GROUP ON CERTAIN 385B, 385BL, 5090B, 385C, 385CL, 385CL MH AND 385C FS EXCAVATORS

REBE3061-00

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30Apr2008

U-222

A-179

D-176

O-199

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*After Failure Only*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE FAILED TRACK ADJUSTMENT GROUP ON CERTAIN 385B, 385BL, 5090B, 385C, 385CL, 385CL MH AND 385C FS EXCAVATORS
4157		PS51486

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NOTE:

This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS51486" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "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 AVSpare product analyst.

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TERMINATION DATE

30Apr2010

PROBLEM

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The existing 168-6743 Track Adjustment Group can seize due to the 095-1631 Seal-O-ring or 136-2442 Piston on certain 385B, 385BL, 5090B, 385C, 385CL, 385CL MH and 385C FS Excavators. If the existing seal-o-ring or piston seized, replace the entire 168-6743 Track Adjustment Group with a new 297-9154 Track Adjustment Group. The new track adjustment group has an improved 297-9158 Piston made with SQP treatment on the surface and an improved 248-7179 Seal-O-Ring made from urethane for a longer life of the component.

AFFECTED PRODUCT

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Model	Identification Number
385B	ANS00227-00346 CLS00206-00277 RCD00152-00276
385B L	FDL00151-00283 MYA00291-00292
385C	JCM00175-00182 KBC00201-00240 KKK00123-00195
385C FS	EAM00264-00286 MMA00245-00258 T2F00181-00188
385C L	EDA00189-00463 KGB00275-00409 SBE00168-00296 T2E00291-00341
385C L MH	WAW00211-00220
5090B	CLD00312-00350 SJY00106-00107

PARTS NEEDED

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Qty	Part Number	Description
1	2979154	ADJUSTMENT GP
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 3% 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 the attached Rework Procedure.

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	AVSpare		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-4000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
4001-8000 hrs, 25-48 mo	33.3%	50.0%	0.0%	0.0%	50.0%	50.0%

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NOTE: This is a 8.0-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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WARNING:
1. Personal injury can result from hydraulic oil pressure and hot oil.
2. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.
3. Make sure that all of the attachments have been lowered to the ground and the oil is cooled before removing any components or lines.

Introduction:
Procure the tools that are listed below (Image1.2.1)

Image1.2.1

1. Release the tension on the track assembly. Slowly loosen relief valve (2) for track adjuster (1). Do not loosen the relief valve more than one turn.

Image1.3.1

Note:
If the track assembly does not loosen with the relief valve open, move the machine forward and backward until the tension is released.

2. Remove bolt (4) and cover plate (3) from the track roller frame.

Image1.5.1

3. Position the track, as shown. Use Tooling (A) to remove the bolts and nuts that hold track shoe (5) that is directly above the hydraulic track adjuster.

Image1.6.1

4. Use a lifting sling and a hoist to remove track shoe (5). The weight of the track shoe is approximately 64 kg (140 lb).

Image1.7.1

5. Fasten a lifting sling and a hoist to hydraulic track adjuster (1).

Image1.8.1

6. Remove bolts (6) from the track roller frame assembly.

Image1.9.1

7. Remove hydraulic track adjuster (1) from the track roller frame assembly. The weight of the hydraulic track adjuster is approximately 93 kg (205 lb).