PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY UPDATING THE HYDRAULIC CONFIGURATION FOR THE QUICK COUPLER ON CERTAIN 336D AND 336E EXCAVATORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY UPDATING THE HYDRAULIC CONFIGURATION FOR THE QUICK COUPLER ON CERTAIN 336D AND 336E EXCAVATORS

Usage:

TEBE0928-00

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14Apr2014

U-203

D-185

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY UPDATING THE HYDRAULIC CONFIGURATION FOR THE QUICK COUPLER ON CERTAIN 336D AND 336E EXCAVATORS
6129 5057		PI32329

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI32329" 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 "PI32329" 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
31Oct2014	30Apr2015

PROBLEM

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The excavator quick coupler control hydraulics need to be inspected on certain 336D and 336E Excavators that were shipped from the factory with Tool Control and a Center-Lock Quick Coupler. If a hydromechanical work tool such as Hammers, Shears, Pulverizers, Multiprocessors, etc. are used with the quick coupler and the machine was not configured with the additional Hydromechanical Convertion Kit as called for in the machine's Operation and Maintenance Manual, the tool may loosen in the coupler.

AFFECTED PRODUCT

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Model	Identification Number
336D 2L	FAR00207, 209, 211-212, 214-215, 217, 219
336D L	WRK00491-00496, 508-522, 524-525, 527-533, 536, 539-547, 550-562, 566-573, 578-582, 584 ZML00248-00249, 251-255, 260, 262-268, 526, 528, 531-532, 534-544, 546-548, 552-553
336E L	BZY01385, 2319, 2362, 2367, 2372, 2405, 2419, 2453, 2457, 2460, 2466, 2471, 2475, 2478, 2492, 2495, 2500, 2502-2503, 2506, 2508-2509, 2512-2513, 2519 FJH00435, 437, 442, 460-461, 464, 468-469, 471, 474, 479, 481, 484, 486, 488, 507, 512, 517-518, 527, 532, 534, 536-537, 539, 541, 543, 545, 575, 585, 618, 621, 625, 627, 645-646, 648-649, 654, 661, 665-667, 670-672, 674-676, 681-683, 685-686, 705, 764, 767-768, 771, 783, 785, 788, 794, 796, 829, 831, 833-835, 840, 843-844, 848, 851, 854 JRJ00238, 242-243, 246-249, 251-253, 255-258, 262, 273-274, 292-293, 299-302, 306, 314-315, 325-330, 332-333, 335-337, 339-340, 347, 351, 354, 356-357, 360-362, 364-368, 371-373 YEP00519, 522, 536-537

PARTS NEEDED

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Qty	Part Number	Description
1	4174689	KIT-HYDRAULIC
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 41% 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 the attached 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 2.0-hour job
If the 4174689 Hydromechanical Conversion kit is out of stock, piece parts ordered to assemble a kit will be covered.

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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 INSPECTING AND POSSIBLY UPDATING THE HYDRAULIC CONFIGURATION FOR THE QUICK COUPLER

MODELS INVOLVED - 336D AND 336E EXCAVATORS

Dear Cat Product Owner:

The excavator quick coupler control hydraulics need to be inspected on the products listed below. The existing Center-Lock Quick Coupler can loosen when operated with hydromechanical work tools if the Excavator was not configured with the Hydromechanical Conversion kit as instructed in the Operation and Maintenance Manual. 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 14Apr2014 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 14Apr2014 Service Letter

Rework Procedure

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336D and 336E Excavators were shipped with Tool Control hydraulics from the factory which allows them to operate many different hydromechanical work tools, such as Hammers, Shears, Pulverizers, and Multiprocessors. The affected Excavators also were equipped with the Center-Lock Quick coupler from the factory. According to the Excavator and Center-Lock Operation and Maintenance Manual, machines need to have the Hydromechanical Conversion kit added to the machine if the Center-Lock Quick Coupler is to operate with hydromechanical work tools. The Hydromechanical Conversion kit was not available from the factory on the affected units and had to be installed by a Cat dealer.

Inspect the machine to insure that the Hydromechanical Conversion kit has been installed on the Excavator. Locate the coupler control solenoid valve block mounted at the boom foot of the Excavator. See the arrow in Image1.1.1 for location reference.

Image1.1.1

If two coupler control solenoid valve blocks, labeled (A) and (2) in Image1.2.1, are present on the Excavator then it is already equipped with the 417-4689 Hydromechanical Conversion kit and no further action is necessary.

Image1.2.1

If only one coupler control solenoid valve blocks, labeled (A) in Image1.3.1, is present on the Excavator then the Excavator needs to have the 417-4689 Hydromechanical Conversion kit installed on it to equip it for use with hydromechanical work tools. Install the 417-4689 Hydromechanical Conversion kit per the Special Instruction, GEHS0431.