PRODUCT SUPPORT PROGRAM FOR MAKING IMPROVEMENTS TO THE AIR CONDITIONER AND REPLACING THE AIR CONDITIONER/HEATER FUSE ON CERTAIN 725, 730, 730EJ, 735, 740, AND 740EJ ARTICULATED TRUCKS Caterpillar

PRODUCT SUPPORT PROGRAM FOR MAKING IMPROVEMENTS TO THE AIR CONDITIONER AND REPLACING THE AIR CONDITIONER/HEATER FUSE ON CERTAIN 725, 730, 730EJ, 735, 740, AND 740EJ ARTICULATED TRUCKS

Usage:

REBE2374-03

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07Sep2007

(Revised 27Mar2009)

U-436

A-361

D-357

O-383

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR MAKING IMPROVEMENTS TO THE AIR CONDITIONER AND REPLACING THE AIR CONDITIONER/HEATER FUSE ON CERTAIN 725, 730, 730EJ, 735, 740, AND 740EJ ARTICULATED TRUCKS
7155 1417 1607		PS42504

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NOTE:

This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS42504" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "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 07Sep2007 (Revised 11Apr2008) Service Letter. Changes have been made to Affected Product and Action Required/Rework Procedure.

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TERMINATION DATE

30Sep2009

PROBLEM

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In high ambient temperatures additional cooling of the cab can be achieved on certain 725, 730, 730EJ, 735, 740, and 740EJ Articulated Trucks. The temperature inside the cab can be lowered by reducing the radiant heat entering the cab.
Also, the air conditioner/heater fuse is susceptible to current surges when the engine is started and the blower is in position III.

AFFECTED PRODUCT

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Model	Identification Number
725	AFX00074-01019, 1021-1648 B1L00713-02115
730	AGF00175-01561 B1M00632-02316
730EJ	B1W00198-00349
735	AWR00207-00880 B1N00438-01181
740	AXM00219-02154 B1P01079-04218
740 OEM	DTX00101-00121
740EJ	AZZ00262-00390 B1R00221-00465
CIPI	0EM01629-01640

PARTS NEEDED

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Qty	Part Number	Description
1	6V0447	CLAMP-HOSE
11	9X6165	WASHER
23	1877719	SCREW-HEX FLANGE
6	2768706	PLATE
1	2768707	SEAL
1	2768708	COVER-EXHAUST
1	2915075	BREAKER AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% 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 Special Instruction, REHS4037 "Improvements for the Air Conditioner on Articulated Trucks".
This publication gives guidelines on how to fit addition Seal, Cover and New Circuit Breaker.

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-10000 hrs, 0-60 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%