PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE POTENTIOMETER ON CERTAIN 3606, 3608, 3612, 3616, C280-6, C280-8, C280-12, AND C280-16 MARINE PROPULSION ENGINES Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE POTENTIOMETER ON CERTAIN 3606, 3608, 3612, 3616, C280-6, C280-8, C280-12, AND C280-16 MARINE PROPULSION ENGINES

Usage:

REBE4726-00

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18Dec2008

U-650

A-539

D-553

O-593

TM-33

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*Priority*	PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE POTENTIOMETER ON CERTAIN 3606, 3608, 3612, 3616, C280-6, C280-8, C280-12, AND C280-16 MARINE PROPULSION ENGINES
5721 7451		PI31603

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NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI31603" 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 "PI31603" 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
30Jun2009	31Dec2009

PROBLEM

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The secondary speed control potentiometer needs to be replaced on certain 3606, 3608, 3612, 3616, C280-6, C280-8, C280-12, and C280-16 EUI marine propulsion engines. The existing potentiometer may cause a secondary speed control fault code.

AFFECTED PRODUCT

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Model	Identification Number
3606	8RB00379-00380, 656-657, 659-660, 724-725, 730-731, 809-810
3608	6MC00291-00294, 636-637, 650, 709, 715, 718-719
3612	9RC00194, 230, 242, 328-329
3616	1PD00216, 218, 328, 437-438
C280-12	RDW00101-00104, 109-110 TSJ00100-00101, 104-107
C280-16	NKB00121, 123, 134-135 TDX00136-00139
C280-6	LDL00100-00105 SCB00100-00103
C280-8	NDT00107-00124 PKA00100-00101, 112-119

PARTS NEEDED

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Qty	Part Number	Description
1	1229458	POTENTIOMETER
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 40% 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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For engines with the 235-5195 or the 289-0567 Customer Interface Panel:

1. Locate the potentiometer in the panel (Image1).

2. Remove the bracket.

CAUTION: Ensure standard safety precautions are taken while using a heat source / soldering iron on or near the panel.

3. Heat the solder and remove the three wires from the potentiometer.

4. Remove the 127-9069 2K ohm potentiometer from the bracket and replace with the 122-9458 1K ohm potentiometer.

5. Re-install the potentiometer to the bracket and re-solder the three wires.

6. Re-install the bracket.

For engines with the 179-8801 Marine Monitoring System Panel and the 264-9888 MMS2 - EUI Conversion:

1. Locate the potentiometer in the MMS panel (Image2 & Image3).

CAUTION: Ensure standard safety precautions are taken while using a heat source / soldering iron on or near the panel.

2. Heat the solder and remove the three wires from the potentiometer.

3. Remove the 127-9069 2K ohm potentiometer from the panel and replace with the 122-9458 1K ohm potentiometer.

4. Re-solder the three wires.

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Image1

Image2

Image3

OWNER NOTIFICATION

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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%	100%	0%	0%	0%	0%

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NOTE: This is a 0.5-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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COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE POTENTIOMETER ON CERTAIN 3606, 3608, 3612, 3616, C280-6, C280-8, C280-12, AND C280-16 MARINE PROPULSION ENGINES

MODELS INVOLVED - 3606 (EUI), 3608 (EUI), 3612 (EUI), 3616 (EUI), C280-6, C280-8, C280-12, C280-16

Dear Caterpillar Product Owner:

The secondary speed control potentiometer needs to be replaced on the products listed below. The existing potentiometer may cause a secondary speed control fault code. 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 18Dec2008 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 18Dec2008 Service Letter