PRODUCT SUPPORT PROGRAM FOR REPLACING THE DAMPER BOLTS ON CERTAIN C175-20 LOCOMOTIVE ENGINES Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE DAMPER BOLTS ON CERTAIN C175-20 LOCOMOTIVE ENGINES

Usage:

TEBE8753-00

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27Feb2019

U-97

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Before/After	PRODUCT SUPPORT PROGRAM FOR REPLACING THE DAMPER BOLTS ON CERTAIN C175-20 LOCOMOTIVE ENGINES
1220		PS46136

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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 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 "PS46136" 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

28Feb2021

PROBLEM

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The existing damper bolts can fail on certain C175-20 Locomotive Engines. If the existing damper bolts fail it can/will result in a loss of clamp load on the engine damper.

AFFECTED PRODUCT

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Model	Identification Number
C175-20	R4F00100-00142

PARTS NEEDED

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Qty	Part Number	Description
16	5P6604	WASHER-HARD
16	3283377	BOLT-12 POINT HD
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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Perform these steps every 3,000 hours of engine operation.

1. Label and photograph the damper bolt heads before removal.

2. Check breakaway torque of the damper bolts using click type torque wrench to 300 ft/lb.

3. Note any bolts that loosen with less than 300 ft/lb of torque.

4. Remove damper bolts and install new damper bolts one at a time finger tight.

NOTE: Lubricate the threads, under the head of the bolt flange and the washer with moly sulfide base lubricant (preferred) or clean engine oil.

5. Tighten bolts (3) 1-4 to 800+/-100 Nm following the torque tightening sequence as shown to fully seat components. Tighten all bolts (3) 1-16 to 800+/-100 Nm following the torque tightening sequence as shown.

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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%
0-7000 hrs, 0-60 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%