PRODUCT IMPROVEMENT PROGRAM FOR CHANGING TWO PORTS ON THE MEDIUM PRESSURE SWIVEL ON CERTAIN M300C-SERIES WHEELED EXCAVATORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR CHANGING TWO PORTS ON THE MEDIUM PRESSURE SWIVEL ON CERTAIN M300C-SERIES WHEELED EXCAVATORS

Usage:

REBE1127-02

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12Oct2006

(Revised 08Apr2008)

U-676

A-655

D-639

O-658

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*Safety*	PRODUCT IMPROVEMENT PROGRAM FOR CHANGING TWO PORTS ON THE MEDIUM PRESSURE SWIVEL ON CERTAIN M300C-SERIES WHEELED EXCAVATORS
5060 5057		PI10543

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI10543" 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 "PI10543" 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:	This Revised Service Letter replaces the 12Oct2006 (Revised 03Nov2006) Service Letter. Changes have been made to the Action Required.

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PROBLEM

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The check valves on the oscillating axles cylinder can open inadvertantly. Inadvertent opening of these check valves could lead to machine instability, which may result in personal injury or death. The medium pressure swivel lines need to be rerouted to prevent this inadvertant action.

AFFECTED PRODUCT

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Model	Identification Number
M313C	BDR00088-00789, 2001-2223 H2A00256-00442
M315C	BDM00312-00862, 2001-2227 H2B00189-00331
M316C	BDX00090-00996, 2001-2322 H2C00197-00420
M316D	W6A00292-00294
M318C	BCZ00211-01114, 2001-2246 BEB00197-00290, 2001-2067 H2D00258-00530 H2F00128-00203
M318D	W8P00205-00210
M322C	BDK00122-00476, 2001-2096 BDY00234-00404, 2001-2082 H2E00247-00345 H2G00247-00337
M322D	W2S00113-00115

PARTS NEEDED

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Qty	Part Number	Description
1	6V8398	SEAL-O-RING
1	6v9851/">6V9851	ELBOW-SWIVEL
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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Be sure that the service brake pedal is in the unlocked position, and release the hydraulic system pressure according to the Disassembly & Assembly Manual. After releasing the hydraulic system pressure, attach a vacuum pump to the hydraulic tank to avoid hydraulic oil loss. Remove the hydraulic hoses from the medium pressure swivel 8U-5851 at port 3 and port 5, and reattach them at the other port (hose from port 3 to port 5 and vice versa). Perform the same swap on the lower part of the swivel, using the 6v9851 Tee-Swivel and 6V8398 Seal O-Ring at port 3 to attach the brake line. Remove the vacuum pump, bleed any air from the brake lines by opening the breather valves and stepping on the brake until oil comes out of the valve, retighten it, and restart the machine, checking for leaks.

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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 1.5-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

SAFETY - PRODUCT IMPROVEMENT PROGRAM FOR CHANGING TWO PORTS ON THE MEDIUM PRESSURE SWIVEL

MODELS INVOLVED - CERTAIN M300C-SERIES WHEELED EXCAVATORS

Dear Caterpillar Product Owner:

The check valves on the oscillating axles cylinder can open inadvertantly which could result in an unstable machine with the potential for serious injury or death. The medium pressure swivel lines need to be rerouted to prevent this inadvertant action. 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 12Oct2006 when scheduling this service.

We regret the inconvenience this may cause you, but urge you to have this service performed for your added safety and satisfaction.

Caterpillar Inc.

Identification #(s)

Attached to 12Oct2006 Service Letter