PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING THE FAN ADAPTER ON CERTAIN 966H AND 972H MEDIUM WHEEL LOADERS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING THE FAN ADAPTER ON CERTAIN 966H AND 972H MEDIUM WHEEL LOADERS

Usage:

REBE2421-00

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28Aug2007

U-418

A-344

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING THE FAN ADAPTER ON CERTAIN 966H AND 972H MEDIUM WHEEL LOADERS
1356 1353		PI31335

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31335" 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 "PI31335" 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
29Feb2008	31Aug2008

PROBLEM

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The nut that holds the fan adapter to the fan motor needs to be inspected for proper torque on certain 966H and 972H Medium Wheel Loaders. The existing fan adapter taper may not be conforming and may allow fan adapter to fan motor joint to loosen.

AFFECTED PRODUCT

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Model	Identification Number
966H	A6D01227-01234, 1236-1237
972H	A7D00524-00527, 529

PARTS NEEDED

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Qty	Part Number	Description
1	1927356	ADAPTER* (IF NEEDED)

ACTION REQUIRED

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1. Raise hood and open access door on side of radiator package.
2. Perform a static torque check of 160 N-m (118 lb-ft) on the 8T-4132 Nut.
If there is no movement of the nut there is no action required.
If there is movement of the nut the 192-7356 Fan Adapter must be replaced. Reference RENR8843, Disassembly and Assembly, 966H and 972H Wheel Loaders Engine Supplement.

Report the machine S/N and your findings from step 2 to MWL Product Support at +1-630-859-6251.

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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 1.0-hour job
NOTE: An additional 4 hours labor and parts costs will be allowed if the fan adapter needs to be replaced.

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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 FAN ADAPTER ON CERTAIN 966H AND 972H MEDIUM WHEEL LOADERS

MODELS INVOLVED - 966H and 972H Medium Wheel Loaders

Dear Caterpillar Product Owner:

The nut that holds the fan adapter to the fan motor needs to be inspected for proper torque on certain 966H and 972H Medium Wheel Loaders. The existing fan adapter taper may not be conforming and may allow fan adapter to fan motor joint to loosen. 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 28Aug2007 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 28Aug2007 Service Letter