PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING A NEW 368-1458 LOW PRESSURE FUEL RETURN LINE ON CERTAIN C175-20 ENGINES INSTALLED IN 797F OFF-HIGHWAY TRUCKS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING A NEW 368-1458 LOW PRESSURE FUEL RETURN LINE ON CERTAIN C175-20 ENGINES INSTALLED IN 797F OFF-HIGHWAY TRUCKS

Usage:

REBE6522-01

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19Oct2010

(Revised 01Nov2010)

U-426

A-343

D-387

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING A NEW 3681458/">368-1458 LOW PRESSURE FUEL RETURN LINE ON CERTAIN C175-20 ENGINES INSTALLED IN 797F OFF-HIGHWAY TRUCKS
1252		PI31813

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31813" 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 "PI31813" 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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NOTE:	This Revised Service Letter replaces the 19Oct2010 Service Letter. Changes have been made to Affected Product to remove engines that do not have the tube interference issue.

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COMPLETION DATE	TERMINATION DATE
30Apr2011	31Oct2011

PROBLEM

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The 327-0843 low pressure fuel return line needs to be replaced on certain C175-20 engines installed in 797F off-highway trucks. The existing fuel line may interfere with the torque converter and cause a rub between the low pressure fuel return line and the torque converter.

AFFECTED PRODUCT

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Model	Identification Number
797F	LAJ00152-00192, 195-196

PARTS NEEDED

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Qty	Part Number	Description
1	3681458	TUBE AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 40% 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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1. Remove the 327-0843 low pressure fuel return line shown in Image 1. Retain all mounting hardware for reuse.

2. Install the new 3681458/">368-1458 low pressure fuel return line. Reuse the mounting clamps and hardware from the removal of the 327-0843 low pressure fuel return line.

NOTE: Ensure the new 3681458/">368-1458 low pressure fuel line does not touch the torque converter housing after installation.

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Image1

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 4.0-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 INSTALLING A NEW 3681458/">368-1458 LOW PRESSURE FUEL RETURN LINE ON C175-20 ENGINES

MODELS INVOLVED - 797F Off-Highway Trucks

Dear Caterpillar Product Owner:

The low pressure fuel return line needs to be replaced on the products listed below. The existing low pressure fuel return line can interfere with the torque converter housing. 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 19Oct2010 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 19Oct2010 Service Letter