PRODUCT SUPPORT PROGRAM FOR REPLACING THE HYDRAULIC TEE ADAPTOR ON CERTAIN 320D FM HW EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HYDRAULIC TEE ADAPTOR ON CERTAIN 320D FM HW EXCAVATORS

Usage:

TEBE0445-00

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03Oct2013

U-479

A-328

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*Before/After*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE HYDRAULIC TEE ADAPTOR ON CERTAIN 320D FM HW EXCAVATORS
5057 5059		PS44043

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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 "PS44043" 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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TERMINATION DATE

31Oct2015

PROBLEM

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The existing 337-1183 Tee Adaptor is not the correct part for the hydraulic function on certain 320D FM HW Excavators. If the existing 337-1183 Tee Adaptor is not replaced, it will not allow pump hydraulic flow function of the machine, which will result in poor machine hydraulic performance.

AFFECTED PRODUCT

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Model	Identification Number
320D FM HW	EAX00343, 347-350, 352-356, 359, 361-362, 365-368

PARTS NEEDED

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Qty	Part Number	Description
1	3J1907	SEAL-O-RING
1	6V8397	SEAL-O-RING-ORFS
1	7X2459	ADAPTER-TEE
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 Operation and Maintenance Manual, for your machine, for additional information in order to release hydraulic pressure.

The 337-1183 Fitting Assembly is located on the top of the valve in the top of ATT 2 valve spool cap. It is the last valve section closest to the cab. Refer to Image1.

1. Remove the two pilot hoses and the adaptor. The tee adaptor does not have an oil passageway drilled in it, this should allow you to easily recognize it.

2. Replace the adaptor with the correct 148-8443 Adaptor (this includes 7X-2459 Tee Adaptor, 3J-1907 O-ring Seal, and 6V-8397 O-ring Seal). Refer to Image2.

3. Reinstall the two pilot lines. Check for machine to pump flow functionality and oil leaks.

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Image1

Image2

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%
0-2000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%