PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE 329-7252 VALVE GROUP ON CERTAIN 345C AND 345C L EXCAVATORS, EQUIPPED WITH UHD FRONT PARTS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE 329-7252 VALVE GROUP ON CERTAIN 345C AND 345C L EXCAVATORS, EQUIPPED WITH UHD FRONT PARTS

Usage:

TEBE0714-00

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10Jan2014

U-19

D-18

O-17

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*Safety*	PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE 329-7252 VALVE GROUP ON CERTAIN 345C AND 345C L EXCAVATORS, EQUIPPED WITH UHD FRONT PARTS
5057		PI10953

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI10953" 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 "PI10953" 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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PROBLEM

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The hydraulic circuit, including the current fore-boom 329-7252 Valve Group, is not optimized for integrating the valve and allowing correct functionality on certain 345C and 345C L Excavators, equipped with UHD front parts. The 329-7252 Valve Group can fail and cause the fore-boom to fall. The sudden drop of the fore-boom may, in conjunction with other factors or circumstances, result in a risk of personal injury or death.

AFFECTED PRODUCT

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Model	Identification Number
345C	SPC00221-00283
345C L	SCN00181-00211

PARTS NEEDED

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Qty	Part Number	Description
1	4J0522	SEAL-O-RING
1	5K9090	SEAL-O-RING-ORFS
1	6V8635	ADAPTER-STR
1	6V9833	CAP AS
1	7M8485	SEAL-O-RING
4	7X2543	BOLT-HEX HEAD
1	3884686	VALVE GP-CHECK-E
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 45% 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
Australia
New Zealand

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 4.0-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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XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

SAFETY ? PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE 329-7252 VALVE GROUP

MODELS INVOLVED ? CERTAIN 345C AND 345C L EXCAVATORS, EQUIPPED WITH UHD FRONT PARTS

Dear Cat Product Owner:

The fore-boom valve group needs to be replaced on the products listed below. The existing valve group can fail and cause the fore-boom to fall. The sudden drop of the fore-boom may, in conjunction with other factors or circumstances, result in a risk of personal injury or death. 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.

You may now search for open Safety Service Letters by entering your product serial number(s). Visit the SAFETY.CAT.COM website and click on the Product Safety page for more information. Please refer the dealer to their Service Letter dated 10Jan2014 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 10Jan2014 Service Letter

Rework Procedure

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Place the machine on a flat surface, place the boom/stick on the ground before removing any hydraulic lines.

Refer to the Disassembly and Assembly, "Hydraulic System Pressure - Release", for your machine, in order to release the system pressure.

Assemble the new 388-4686 Check Valve Group (E) for appropriately draining the fore-boom 329-7252 Valve Group.

1. On the swing drive, disconnect the threaded 90 degree end of 333-7979 Hose Assembly (1 7/16 inch). Refer to Image1.1.1.

Image1.1.1

2. Install a 6V-9833 Cap Assembly. Refer to Image1.2.1.

Image1.2.1

3. Disconnect the 275-1380 Hose Assembly. Assemble the new 388-4686 Check Valve Group using the 7X-2543 Bolts and 4J-0522 O-Ring Seal. Assemble the 275-1380 Hose Assembly to the new 388-4686 Check Valve Group. Refer to Image1.3.1.