PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND IF NECESSARY RE-WIRING THE E-STOP SWITCH ON THE MPD PILOT HOUSE PANELS ON CERTAIN 3508B, 3512B, AND 3516B MARINE ENGINES Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND IF NECESSARY RE-WIRING THE E-STOP SWITCH ON THE MPD PILOT HOUSE PANELS ON CERTAIN 3508B, 3512B, AND 3516B MARINE ENGINES

Usage:

SEBE9538

April 2, 2006
U-99
A-78
D-74
O-86
TM-3

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*Safety*	PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND IF NECESSARY RE-WIRING THE E-STOP SWITCH ON THE MPD PILOT HOUSE PANELS ON CERTAIN 3508B, 3512B, AND 3516B MARINE ENGINES
1416		PI10449

NOTE: This Program must be administered as soon as possible. When reporting the repair, use "PI10449" 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 "PI10449" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

PROBLEM

The E-Stop 109-6507 switch may have been wired incorrectly on the MPD Pilot House panels within the 257-7952 Panel Gp; 249-6961 and 257-7948 MPD Pilot House panels. If the E-Stop is wired incorrectly and the engine is running on the secondary ECM, the engine will not shut down when the E-Stop button is depressed. The E-Stop may also not prevent the engine from starting up again, if a start signal is sent to the engine.

It is estimated that this is a potential issue on 3500B marine engines that were shipped with MPD Pilot House Panels from 18-MAR-05 through 21-DEC-05.

AFFECTED PRODUCT

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Model	Identification Number
3508B	S2E308-309, 311-319, 355-356, 367-374, 430-431 S2F110-112, 117
3512B	S2J182, 188, 246-251, 254-255, 284-285 S2K174 S2L299-300, 312-313, 317, 319, 322, 375, 378, 400, 402-403, 406, 420, 430-431 S2M116, 119, 134-136
3516B	S2S171, 177, 190-193, 204-205 S2X266-271, 280-281, 311-318

PARTS NEEDED

No parts needed.

ACTION REQUIRED

The published 249-6960 Wiring Diagram (MPD Pilot House) is correct. The contacts of the E-Stop need to be checked in order to ensure that they agree with the published diagram. This check can be done as follows:

Ensure that the E-Stop button is not depressed.
Check for resistance across terminals 13 and 14.
This should be a Normally Closed contact; therefore there should be no resistance.

If there is resistance, then the E-Stop wiring does not agree with the published 249-6960. The contacts of the E-Stop must be rewired as follows:

The 111-1324 normally closed contact at terminals 13 and 14 must be rewired to terminals 21 and 22 as shown below.
The 111-1323 normally open contact at terminals 21 and 22 must be rewired to terminal 13 and 14 as shown below:

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.
100%	1.0	0	0	0	0
NOTE: This is a 1.0 hour job.

PARTS DISPOSITION

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

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

Attach. (1-Owner Notification)

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

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

SAFETY - PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND IF NECESSARY RE-WIRING THE E-STOP SWITCH ON THE MPD PILOT HOUSE PANELS

MODELS INVOLVED - CERTAIN 3508B, 3512B, AND 3516B MARINE ENGINES

Dear Caterpillar Product Owner:

The E-Stop switch needs to be inspected on the products listed below. The E-Stop switch may have been wired incorrectly and may not shut down the engine when depressed. The E-Stop switch failing to shut down the engine may result in injury or death. 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 April 2, 2006 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 April 2, 2006 Service Letter