PRODUCT IMPROVEMENT PROGRAM FOR CHECKING THE HYDRAULIC SYSTEM PRESSURE AND, IF REQUIRED, ADJUSTING THE MAIN RELIEF VALVE, ON CERTAIN 320D, 320D 2, AND 320D 2L EXCAVATORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR CHECKING THE HYDRAULIC SYSTEM PRESSURE AND, IF REQUIRED, ADJUSTING THE MAIN RELIEF VALVE, ON CERTAIN 320D, 320D 2, AND 320D 2L EXCAVATORS

Usage:

TEBE1641-00

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08Jul2014

D-363

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR CHECKING THE HYDRAULIC SYSTEM PRESSURE AND, IF REQUIRED, ADJUSTING THE MAIN RELIEF VALVE, ON CERTAIN 320D, 320D 2, AND 320D 2L EXCAVATORS
5069 5117		PI32369

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NOTE:

Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.

NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI32369" 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 "PI32369" 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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COMPLETION DATE	TERMINATION DATE
31Jan2015	31Jul2015

PROBLEM

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The transducer may be out of calibration on certain 320D, 320D 2, and 320D 2L Excavators. During adjustment of the 352-7116 Main Relief Valve, in the hydraulic control valve, the VMC ? Transducer can be found out of calibration. This can lead to incorrect and marginal differences in the hydraulic system pressure, and can lead to erratic implement function.

AFFECTED PRODUCT

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Model	Identification Number
320D	JPD00142-00260
320D 2	DNP00252-00375 FKK00281-00359
320D 2L	EKT00152-00159, 161

PARTS NEEDED

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No parts needed for this program

ACTION REQUIRED

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Verify that the hydraulic system pressure is meeting specifications. Refer to UENR2963, Testing and Adjusting, "Relief Valve (Main) - Test and Adjust".

If the hydraulic system pressure is not meeting specifications, refer to UENR2963, Testing and Adjusting, "Relief Valve (Main) - Test and Adjust", and follow the adjustment procedure in order to complete this Rework.

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OWNER NOTIFICATION

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Owners in the following countries will receive the attached Owner Notification:
US
Canada

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 0.5-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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EXAMPLE COPY OF OWNER NOTIFICATION

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR CHECKING THE HYDRAULIC SYSTEM PRESSURE AND, IF REQUIRED, ADJUSTING THE MAIN RELIEF VALVE

MODELS INVOLVED - CERTAIN 320D, 320D 2, AND 320D 2L EXCAVATORS

Dear Cat Product Owner:

A marginal difference in the hydraulic system pressure may be found on the products listed below. The hydraulic system pressure must be verified to be within specifications. If the pressure is not meeting the specification, main relief valve adjustment is required. You will not be charged for the service performed.

Contact your local Cat dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

If you are no longer the owner of this product(s), please contact your local Cat dealer so that our records can be updated. Please refer the dealer to their Service Letter dated 08Jul2014 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 08Jul2014 Service Letter