PRODUCT SUPPORT PROGRAM FOR REPLACING THE REAR DRIVE AXLE GROUP ON CERTAIN 422F, 422F2, 427F2, 428F, 428F2, 432F, AND 432F2 BACKHOE LOADERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE REAR DRIVE AXLE GROUP ON CERTAIN 422F, 422F2, 427F2, 428F, 428F2, 432F, AND 432F2 BACKHOE LOADERS

Usage:

TEBE4716-00

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18Jul2016

U-374

A-283

D-328

O-326

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After Failure Only	PRODUCT SUPPORT PROGRAM FOR REPLACING THE REAR DRIVE AXLE GROUP ON CERTAIN 422F, 422F2, 427F2, 428F, 428F2, 432F, AND 432F2 BACKHOE LOADERS
3278 3282 3258		PS53254

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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 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 "PS53254" 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 Caterpillar product analyst.

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TERMINATION DATE

31Jul2018

PROBLEM

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The existing 199-0694 Retaining Bolts for the bevel gear can come loose on certain 422F, 422F2, 427F2, 428F, 428F2, 432F, and 432F2 Backhoe Loaders. If the bolts come loose, they will cause noise in the axle. If the existing bolts come loose, they will contact the brake housing, shear and generate debris in the axle, causing failure to the axle components.

AFFECTED PRODUCT

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Model	Identification Number
422F	LRH00150-02375
422F 2	LYF00150-00240
427F 2	HWK00150-00168
428F	LBH00150-05614, 33976 RAK00150-00610 SJW00150-00425, 430-707
428F 2	HWN00150-00217, 219-237 LYG00150-00401
432F	LNR00150-00754, 756-1287 PXR00150-00893 SEJ00150-00445, 447-824, 833-895
432F 2	HWP00150-00332 LYJ00150-00208

PARTS NEEDED

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Qty	Part Number	Description
1	2305738	AXLE GP-REAR
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% 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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An SOS sample of the rear axle fluid will indicate iron in the fluid. The center section of the axle must be separated to verify that the noise is coming from the 199-0694 Retaining Bolts contacting the brake housing. Image1 and 2 illustrate examples of this failure. An image must be attached to the SIMSi claim illustrating the damage from the 199-0694 Retaining Bolts backing out.

Replace the rear axle. Refer to the Disassembly and Assembly, "Rear Axle - Remove/Install", for your model, in order to replace the axle.

NOTE: Please attach images to the SIMSi claim illustrating the failure.

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Image1

Image2

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%
0-1500 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
1501-3000 hrs, 25-48 mo	33.0%	50.0%	0.0%	0.0%	50.0%	50.0%