PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING THE TURBOCHARGER COMPRESSOR HOUSING ON CERTAIN 3512C AND 3516C ENGINES Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING THE TURBOCHARGER COMPRESSOR HOUSING ON CERTAIN 3512C AND 3516C ENGINES

Usage:

REBE4624-00

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19Nov2008

U-588

D-503

O-542

TM-30

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING THE TURBOCHARGER COMPRESSOR HOUSING ON CERTAIN 3512C AND 3516C ENGINES
1051 1052 1054 1060		PI31581

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31581" 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 "PI31581" 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:

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
31May2009	30Nov2009

PROBLEM

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The turbocharger compressor housing needs to be inspected on certain 3512C and 3516C engines. The existing turbocharger compressor housing can have rust that may affect turbocharger life.

AFFECTED PRODUCT

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Model	Identification Number
3512C	SLM00118-00152 TTC00274-00352 TTF00240-00307 TTG00211-00213
3516C	JTS00108-00117 TTD00273-00343 TTH00206-00221 TTJ00236-00265

PARTS NEEDED

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No parts needed for this program

ACTION REQUIRED

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1. Remove the 208-9064 Cover and 226?2779 Element from the air cleaner.

2. If necessary, dry out the element and metal housing.

3. Inspect the turbocharger compressor housing for rust before removing the turbocharger compressor housing. If the housing has rust remove the compressor housing and remove the rust per the appropriate rust removal procedure below.

4. Reinstall turbocharger compressor after rust removal.

5. Reinstall air cleaner.

Rust Removal Procedure:

Definition of types of rust:

- Flash/surface rust - Rust that can be removed with an oiled towel.
- Light rust - No scaling or pitting and cannot be removed with an oiled towel.
- Heavy rust - Scale and pitting.

Removal of rust:

- Flash rust can be removed with penetrating oil such as Kroil or WD40.

- Light rust can be removed with a wire brush. Apply penetrating oil to the surface to prevent future surface rust.

- Heavy rust can be removed with a wire brush to remove the rust but it must also be neutralized with a neutralizing solution such as MP-7. The MP-7 neutralizing solution should be sprayed on until the surface is "wet". Let it stand for 10 minutes to neutralize the surface. Re-spray the surface during this 10 minute period to keep the surface "wet". Flush the surface with water after the 10 minute
neutralization period. Reference SEBF8018 for reuse of the turbocharger compressor housing. Apply penetrating oil to the surface to prevent future surface rust.

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OWNER NOTIFICATION

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

SERVICE CLAIM ALLOWANCES

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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 5.0-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.

MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

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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 INSPECTING THE TURBOCHARGER COMPRESSOR HOUSING ON CERTAIN 3512C AND 3516C ENGINES

MODELS INVOLVED - 3512C and 3516C Engines

Dear Caterpillar Product Owner:

The turbocharger compressor housing needs to be inspected on the products listed below. The existing turbocharger may have reduced life due to rust. 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 19Nov2008 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 19Nov2008 Service Letter