PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE TUBE, HOSE, AND DRYER OF THE AIR CONDITIONING LINES GROUP CHARGE ON CERTAIN D6N T3 (XL AND LGP) TRACK-TYPE TRACTORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE TUBE, HOSE, AND DRYER OF THE AIR CONDITIONING LINES GROUP CHARGE ON CERTAIN D6N T3 (XL AND LGP) TRACK-TYPE TRACTORS

Usage:

REBE2501-02

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23Jan2008

(Revised 23May2008)

U-43

A-38

D-35

O-39

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE TUBE, HOSE, AND DRYER OF THE AIR CONDITIONING LINES GROUP CHARGE ON CERTAIN D6N T3 (XL AND LGP) TRACK-TYPE TRACTORS
1808		PI31437

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31437" 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 "PI31437" 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 23Jan2008 (Revised 07Apr2008) Service Letter. Changes have been made to the rework procedure.

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COMPLETION DATE	TERMINATION DATE
31Jul2008	31Jan2009

PROBLEM

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The tube, hose, and dryer need to be replaced on certain D6N T3(XL and LGP) Track-Type Tractors. On the existing tube and hose, the charging ports have been inverted.

AFFECTED PRODUCT

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Model	Identification Number
D6N LGP	DJY00121-00713
D6N XL	DJA00231-00514, 516-557

PARTS NEEDED

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Qty	Part Number	Description
2	9X7380	SEAL-O-RING
2	9X7381	SEAL-O-RING
1	2573227	DRYER
1	3091489	TUBE AS.
1	3091490	HOSE 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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Refer to the attached Rework Procedure.

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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 2.5-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 REPLACING THE TUBE, HOSE, AND DRYER OF THE AIR CONDITIONING LINES GROUP CHARGE

MODELS INVOLVED - D6N T3 XL and LGP Track-Type Tractors

Dear Caterpillar Product Owner:

The hose, tube, and dryer in the air conditioning lines group need to be replaced on the products listed below. On the existing hose and tube, the charging ports have been inverted. 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 23Jan2008 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 23Jan2008 Service Letter

Rework Procedure

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NOTE: The quick couplers used in the original lines group will not be present in the new lines group.

1) Purge the A/C System.
2) Disassemble all necessary sheet metal.
3) Follow Service Manual, SENR5664, for guidelines on disassembly and assembly procedures.
4) Disassemble the 286-0105 Tube, 286-0104 Hose, and 3E-3535 Dryer.
5) Install new 309-1489 Tube, 309-1490 Hose, and 257-3227 Dryer.
6) Reassemble the sheet metal.
7) Charge the A/C System with 1.5 Kg (3.3 lb) of refrigerant.