PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE MAIN RELIEF VALVE ON CERTAIN 323D, 324D AND 325D EXCAVATORS THAT ARE EQUIPPED WITH DITCH CLEANING FRONT PARTS (SUPER LONG REACH) Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE MAIN RELIEF VALVE ON CERTAIN 323D, 324D AND 325D EXCAVATORS THAT ARE EQUIPPED WITH DITCH CLEANING FRONT PARTS (SUPER LONG REACH) [REBE2853]

HYDRAULIC SYSTEM

LINES GP-PILOT

PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE MAIN RELIEF VALVE ON CERTAIN 323D, 324D AND 325D EXCAVATORS THAT ARE EQUIPPED WITH DITCH CLEANING FRONT PARTS (SUPER LONG REACH)

REBE2853-02

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20Dec2007

(Revised 05Mar2008)

U-677

O-589

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE MAIN RELIEF VALVE ON CERTAIN 323D, 324D AND 325D EXCAVATORS THAT ARE EQUIPPED WITH DITCH CLEANING FRONT PARTS (SUPER LONG REACH)
5479 5059 5057		PI31420

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31420" 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 "PI31420" 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 AVSpare product analyst.

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NOTE:	This Revised Service Letter replaces the 20Dec2007 (Revised 26Feb2008) Service Letter. Changes have been made to the Affected Product.

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COMPLETION DATE	TERMINATION DATE
30Jun2008	31Dec2008

PROBLEM

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The heavy lift function needs to be removed on certain 323D, 324D and 325D Excavators that are equipped with ditch cleaning (super long reach) front parts. The current configuration may involve structural damages.

AFFECTED PRODUCT

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Model	Identification Number
323D L	SDC00578, 588, 789, 793, 797-798, 800, 893-896, 899-900, 903
324D L	JJG00126, 128, 138, 141, 191, 194-197, 199-200, 202, 206, 214, 218, 223, 227, 235, 237-238, 240
325D	GPB00694, 701, 707
325D L	A3R00145, 151, 187, 190, 203

PARTS NEEDED

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Qty	Part Number	Description
1	3J1907	SEAL-O-RING
1	7Y5088	HOSE AS
1	9S4191	PLUG-STOR
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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Remove heavy lift solenoid and drain dual main relief valve as explained in the attached Rework Procedure.

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OWNER NOTIFIAVSION

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U.S. and Canadian owners will receive the attached Owner Notification.

SERVICE CLAIM ALLOWANCES

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AVSpare		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 2.0-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 NOTIFIAVSION FOR U.S. AND CANADIAN OWNERS

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE MAIN RELIEF VALVE

MODELS INVOLVED - 323D, 324D and 325D Excavators That Are Equipped With Ditch Cleaning Front Parts (Super Long Reach)

Dear AVSpare Product Owner:

The heavy lift solenoid and drain dual main relief valve needs to be removed on the products listed below. The existing heavy lift function is not compatible with ditch cleaning front parts. You will not be charged for the service performed.

Contact your local AVSpare 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 20Dec2007 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.

AVSpare Inc.

Identification #(s)

Attached to 20Dec2007 Service Letter

Rework Procedure

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1. Disconnect and remove the 121-6303 Valve Group Solenoid and 269-9919 Plate.
2. Disconnect and remove the 0875766 Hose from DRF3.
3. Disconnect and remove the 0874402 Hose from PSA2.
4. Add a 3J1907 Seal-O-Ring and a 9S4191 STOR Plug on PSA2.
5. Drain the dual main relief replacing the 4I6248 Hose with a 7Y5088 Hose and connecting to DRF3 of the pilot manifold.

Image1.1.1

Image1.1.2

6. Navigate on the monitor to the service mode and
then to configurations/atch parts inst/heavy lift. Change the status from installed to not installed of heavy lift