PRODUCT SUPPORT PROGRAM FOR REPLACING THE STABILIZER CYLINDER TUBES AND RELATED HARDWARE ON CERTAIN 422E, 428E, 432E, 434E, 442E, AND 444E BACKHOE LOADERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE STABILIZER CYLINDER TUBES AND RELATED HARDWARE ON CERTAIN 422E, 428E, 432E, 434E, 442E, AND 444E BACKHOE LOADERS [REBE3690]

HYDRAULIC SYSTEM

CYLINDER GP

PRODUCT SUPPORT PROGRAM FOR REPLACING THE STABILIZER CYLINDER TUBES AND RELATED HARDWARE ON CERTAIN 422E, 428E, 432E, 434E, 442E, AND 444E BACKHOE LOADERS

REBE3690-00

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22Apr2008

U-207

A-166

D-162

O-184

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*After Failure Only*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE STABILIZER CYLINDER TUBES AND RELATED HARDWARE ON CERTAIN 422E, 428E, 432E, 434E, 442E, AND 444E BACKHOE LOADERS
5057 5468		PS51482

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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 "PS51482" 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 219-8533, 219-8534, 219-8535, and 219-8536 Tubes may fail at the brazed sleeve joint near the stabilizer cylinder connection.

AFFECTED PRODUCT

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Model	Identification Number
422E	HBE00240-01406, 1600-2308
428E	SNL00150-02073, 2200-3567
432E	BXE00188, 260-2060
434E	FSH00280-00830
442E	GKZ00290-00511
444E	LBE00310-00498

PARTS NEEDED

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Qty	Part Number	Description
4	6V0826	GROMMET
8	6V8398	SEAL-O-RING-ORFS
4	8T1889	CLIP-2 PIECE
4	8T1890	CLIP-2 PIECE
2	8T4121	WASHER-HARD
2	8T4196	BOLT
1	3163225	TUBE AS
1	3163226	TUBE AS
1	3163227	TUBE AS
1	3163228	TUBE AS
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%
0-4500 hrs, 0-36 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%

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NOTE: This is a 1.5-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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. Park the machine on firm level ground and apply the hand brake.
. Lower the stabilizer feet to the ground without holding any machine weight.
. Lower the boom and stick to the ground.
. Release the pressure in the hydraulic system. Refer to Disassembly and Assembly Manual, "Hydraulic System Pressure - Release".
. Remove the following 219-8533, 219-8534, 219-8535, and 219-8536 Tubes plus original clips, bolts and washers.
. Refit new tubes and relevant hardware highlighted in the parts needed list and in the attached Images 1.1.1 and 1.1.2
. After assembly of the new parts, test for leaks and operation of the stabilizer legs.
. Inspect, and if required, adjust the stabilizer leg wear pads in accordance with the information described in the Operations and Maintenance Manual, SEBU7687.