PRODUCT SUPPORT PROGRAM FOR INSPECTING AND REPLACING IF NECESSARY THE FINAL DRIVE COUPLING GEAR BOLT ON CERTAIN 320C EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR INSPECTING AND REPLACING IF NECESSARY THE FINAL DRIVE COUPLING GEAR BOLT ON CERTAIN 320C EXCAVATORS [REBE3155]

POWER TRAIN

DRIVE GP-FINAL

PRODUCT SUPPORT PROGRAM FOR INSPECTING AND REPLACING IF NECESSARY THE FINAL DRIVE COUPLING GEAR BOLT ON CERTAIN 320C EXCAVATORS

REBE3155-00

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04Jan2008

U-8

A-5

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR INSPECTING AND REPLACING IF NECESSARY THE FINAL DRIVE COUPLING GEAR BOLT ON CERTAIN 320C EXCAVATORS
4050		PS42596

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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 "PS42596" 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 AVSpare product analyst.

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TERMINATION DATE

31Jan2010

PROBLEM

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The existing 227-6034 Bolts that hold the final drive coupling gear may loosen on certain 320C Excavators. The torque needs to be checked on the existing 227-6034 Bolt in order to prevent extensive damage to the final drive.

AFFECTED PRODUCT

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Model	Identification Number
320C	RAW00171-00745
320C FM LRR	GAD00186-00201
320CL	SBN00787-01327

PARTS NEEDED

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Qty	Part Number	Description
28	2276034	BOLT-FLANGED
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 7% 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 Disassembly and Assembly Manual, RENR3826, for the final drive disassembly and assembly.

1. All 227-6034 Bolts that hold the final drive coupling gear need to be inspected
to verify that the bolts are tightened to the correct torque of 270 +/- 40 Nm
(230 +/- 30 lb ft).
2. If one or more bolts are tightened to a torque below 230 Nm (200 lb ft), all
227-6034 Bolts must be replaced with new bolts. Apply sealant to thread (Loctite
Product 242) and tighten the bolts to the torque of 270 +/- 40 Nm
(230 +/- 30 lb ft).

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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, 25-36 mo	33.0%	50.0%	0.0%	0.0%	50.0%	50.0%