PRODUCT IMPROVEMENT PROGRAM FOR REWORKING CAM MODULES IN CERTAIN CTG, CTGD, CTS, AND CTSD DELAY TRANSITION AND BYPASS DELAY TRANSITION TYPE AUTOMATIC TRANSFER SWITCHES (ATS) Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REWORKING CAM MODULES IN CERTAIN CTG, CTGD, CTS, AND CTSD DELAY TRANSITION AND BYPASS DELAY TRANSITION TYPE AUTOMATIC TRANSFER SWITCHES (ATS)

Usage:

SEBE8644

February 7, 2004
U-28

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*Safety*	PRODUCT IMPROVEMENT PROGRAM FOR REWORKING CAM MODULES IN CERTAIN CTG, CTGD, CTS, AND CTSD DELAY TRANSITION AND BYPASS DELAY TRANSITION TYPE AUTOMATIC TRANSFER SWITCHES (ATS)
4469		PI10279

NOTE: This Program must be administered as soon as possible. When reporting the repair, use "PI10279" 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 "PI10279" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

PROBLEM

Cam modules in certain CTG, CTGD, CTS, and CTSD delay transition and bypass delay transition type Automatic Transfer Switches (ATS) need to be reworked to prevent misalignment during a rapid transfer causing the mechanical locking cam to jam. This situation only occurs during an accelerated state of transfer.

AFFECTED PRODUCT

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Model	Identification Number
CTG	TSA304, 547
CTGD	TSB108, 110-112, 114-121, 124, 126, 128-132, 134-143, 145, 146, 149, 150, 154, 156-161, 184
CTS	TSG141, 271
CTSD	TSH112-121, 124, 126-132, 136

PARTS NEEDED

Repair parts to be supplied by GE Zenith Controls.

ACTION REQUIRED

The required field rework, repair parts, and materials will be supplied by the ATS manufacturer (GE Zenith Controls). The appropriate Cat dealer is to contact GE Zenith Controls ? Customer Service at (773) 299-6600 option #3. The Cat dealer is to reference GE Zenith Controls Product Alert ZQA-114 when making the necessary repair arrangements with GE Zenith Controls.

OWNER NOTIFICATION

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

SERVICE CLAIM ALLOWANCES

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Caterpillar		Dealer Suggested		Customer Suggested
Parts	Labor Hrs.	Parts	Labor Hrs.	Parts	Labor Hrs.
0	1.0	0	0	0	0
NOTE: This is a 1.0-hour job. NOTE: U.S. and Canadian Dealers Only - Eligible dealers may enter a Type 2 SIMS Report

PARTS DISPOSITION

All parts are supplied by GE Zenith Controls. The dealer is not eligible to file a claim for parts. The parts are to be processed by the GE Zenith Controls representative.

MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

Attach. (1-Owner Notification)
(2-Rework Procedure)

COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

SAFETY - PRODUCT IMPROVEMENT PROGRAM FOR REWORKING CAM MODULES

MODELS INVOLVED - CERTAIN CTG, CTGD, CTS, AND CTSD DELAY TRANSITION AND BYPASS DELAY TRANSITION TYPE AUTOMATIC TRANSFER SWITCHES (ATS)

Dear Caterpillar Product Owner:

The Cam Module needs to be reworked on the products listed below. The cam module in certain delay transition and bypass delay transition type ATS may misalign during a rapid transfer causing the mechanical locking cam to jam and thus not transfer the load. Should the load contain life support devices/systems or other critical support devices/systems, there may be a risk of personal injury or death. This situation only occurs during an accelerated state of transfer (i.e. reduced timer settings and/or overvoltage conditions). You will not be charged for the service performed.

Contact your local Caterpillar 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 February 7, 2004 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 February 7, 2004 Service Letter