PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE DAMPER FASTENER GROUP ON CERTAIN C175-16 GENERATOR SETS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE DAMPER FASTENER GROUP ON CERTAIN C175-16 GENERATOR SETS

Usage:

REBE6423-00

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29Nov2010

U-476

A-389

D-417

O-417

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Priority Parts stock action needed	PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE DAMPER FASTENER GROUP ON CERTAIN C175-16 GENERATOR SETS
7553 1205		PI31824

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31824" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. Exception: If the repair is done after failure, use "PI31824" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

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NOTE:

When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7751" as the Group Number, "56" as the 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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COMPLETION DATE	TERMINATION DATE
31May2011	30Nov2011

PROBLEM

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The existing damper bolts can fail due to fretting at the mating surface between the damper spacer and the underside of the bolt head. The spacer and bolts need to be replaced to prevent a failure and subsequent unscheduled downtime.

AFFECTED PRODUCT

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Model	Identification Number
C175-16	WYB00110-00111, 129, 135, 159, 218-219, 221, 242, 251-252, 254-256, 261, 263, 301-302, 304

PARTS NEEDED

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Qty	Part Number	Description
12	2400312	BOLT-12 POINT HD
1	3601190	SPACER
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 45% 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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****Parts Stock ****

Remove all 283-1677 Spacers from dealer parts stock.

****Affected Product****

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Note: 2 Guide Bolts (tool part number 323-4712) are recommended for this procedure

1. Remove the 8J-8919 damper guard cover to allow access to bolts and spacer.

2. Remove two bolts and install guide bolts as shown in Image1.

3. Remove remainder of the bolts and the old 283-1677 spacer.

4. Lubricate new 240-0312 Bolt threads, under bolt head, and the new 360-1190 Spacer plate with clean engine oil.

5. Install spacer and 4 bolts in the countersink holes. Bolts should be finger tight or snug fit using a torque gun, caution must be used to ensure the bolt head seats in the countersink.

6. Remove guide bolts and install remaining 8 bolts.

7. Start by tightening the four countersink bolts (A,B,C,D pattern) to 350 +/- 50Nm.

8. Tighten all the other bolts to 350 +/- 50 Nm in a star pattern (as shown in image 2).

9. Tighten to 700 +/- 50Nm in the same pattern.

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Image1

Image2

OWNER NOTIFICATION

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U.S. and Canadian owners will receive the attached Owner Notification.

SERVICE CLAIM ALLOWANCES

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****Parts Stock****

1.0 hour of labor will be allowed to remove all 283-1677 Spacers from dealer parts stock.

Submit one claim for all parts removed from dealer parts stock.

****Affected Product****

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Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
100%	100%	0%	0%	0%	0%

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NOTE: This is a 2.0-hour job
1.0 hour will be allowed for removing all parts from dealer parts stock.

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PARTS DISPOSITION

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****Parts Stock****

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

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****Affected Product****

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

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COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE DAMPER FASTENER GROUP

MODELS INVOLVED - C-175 Generator Sets

Dear Caterpillar Product Owner:

The damper bolts and spacer need to be replaced on the products listed below. The existing bolts can fail and lead to unscheduled downtime. You will not be charged for the service performed.

Contact your local Caterpillar dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

Please refer the dealer to their Service Letter dated 29Nov2010 when scheduling this service.

We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime.

Caterpillar Inc.

Identification #(s)

Attached to 29Nov2010 Service Letter