PRODUCT IMPROVEMENT PROGRAM FOR FOR REPLACING THE BOOM CONTROL VALVE SPOOL ON CERTAIN 308E2 CR/SR MINI HYDRAULIC EXCAVATORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR FOR REPLACING THE BOOM CONTROL VALVE SPOOL ON CERTAIN 308E2 CR/SR MINI HYDRAULIC EXCAVATORS

Usage:

TEBE2986-01

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13May2015

(Revised 02Jul2015)

D-184

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Priority	PRODUCT IMPROVEMENT PROGRAM FOR FOR REPLACING THE BOOM CONTROL VALVE SPOOL ON CERTAIN 308E2 CR/SR MINI HYDRAULIC EXCAVATORS
5051 5057		PI32486

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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 "PI32486" 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 "PI32486" 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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NOTE:	This Revised Service Letter replaces the 13May2015 Service Letter. Changes have been made to the Affected Product.

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COMPLETION DATE	TERMINATION DATE
30Nov2015	31May2016

PROBLEM

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The existing boom control valve spool can stick when the machine is started in cold situations and is operated without the machine warm up on certain 308E2 CR/SR Mini Hydraulic Excavators. If the operator actuates the joystick to engage the boom lowering function and then returns the joystick to the neutral position, the boom may continue to lowering and may not stop, continuing to contact the bucket with the ground. It can be stopped when the operator actuates the joystick to engage the boom upward function. Spool thermal expansion can occur at the cold oil condition and the spool can stick inside the valve body. This issue is limited to the boom lowering function. If you warm up the machine with the same procedure as the Operation and Maintenance Manual, this behavior will not occur. This Priority Program has been released for only Japanese market request.

AFFECTED PRODUCT

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Model	Identification Number
308E 2CR	EC200151-00158, 160-191, 193-195, 200-211, 218, 220-221, 226-239, 241-242, 245-260, 262-276, 278-283, 285-290, 293-294, 296-306, 311-319, 321-322, 325, 327-335, 337-346, 358-360, 374 MY200181-00207, 209-211, 213-214, 216-225, 227-230, 235-240, 242, 244, 246-254, 256-268, 270-271, 273-276, 281-282, 284-293, 295-297, 300-313, 315-317, 319-320, 326-339, 341, 343-364, 366-369, 372-379, 381-392, 394-409, 411-415, 417, 422, 434, 444-445, 449, 459, 467, 474, 479
308E 2SR	SR800160, 162 TM200173-00176, 178-179, 181-185, 188-192, 194-197, 199-201, 204-208, 210-212, 214, 216, 218-222, 226, 231-232, 238

PARTS NEEDED

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Qty	Part Number	Description
1	4790589	KIT-SPOOL
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 39% 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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Replace the existing boom spool with new 479-0589 Boom Spool Kit. Refer to SEHS0069, Special Instruction, "Procedure for the Replacement of the Control Valve Spool on Certain 308E2 Mini Hydraulic Excavators", in order to complete this Rework Procedure.

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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 1.0-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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EXAMPLE COPY OF OWNER NOTIFICATION

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR FOR REPLACING THE BOOM CONTROL VALVE SPOOL

MODELS INVOLVED - CERTAIN 308E2 CR/SR MINI HYDRAULIC EXCAVATORS

Dear Cat Product Owner:

The boom section spool on the hydraulic control valve needs to be replaced on the products listed below. The existing boom section spool may be stuck when the machine is started without the machine warming up. 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 13May2015 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 13May2015 Service Letter