PRODUCT SUPPORT PROGRAM FOR REPLACING IMAT SENSOR ON CERTAIN C12.9 MARINE ENGINES Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING IMAT SENSOR ON CERTAIN C12.9 MARINE ENGINES

Usage:

TEBE7292-00

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15Mar2018

U-156

A-118

D-138

O-144

TM-2

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Before/After	PRODUCT SUPPORT PROGRAM FOR REPLACING IMAT SENSOR ON CERTAIN C12.9 MARINE ENGINES
1928 1920		PS45827

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NOTE:

Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.

NOTE:

This Program must be administered either before or after failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS45827" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. If administered after failure, use "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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TERMINATION DATE

31Mar2020

PROBLEM

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The existing Intake manifold air temperature (IMAT) sensor may provide incorrect readings due to loss of connectivity on certain C12.9 Marine Engines. If the existing IMAT sensor fails it causes an engine derate and will display an associated DTC code (105-15).

AFFECTED PRODUCT

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Model	Identification Number
C12.9	PC700253-00282, 284-414, 417 TPJ00259-00270, 273-471

PARTS NEEDED

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Qty	Part Number	Description
1	5289637	SFWR GP-A1000 (as required)
1	5289638	SFWR GP-A1000 (as required)
1	5289639	SFWR GP-A1000 (as required)
1	5289640	SFWR GP-A1000 (as required)
1	5390111	SNSR-TEMP
1	5390112	ADAPTER
1	5390113	WASHER
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 32% 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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A sensor is available that is better suited for the application. Install software or latest available in SIS Web, and IMAT sensor. Refer to the attached Rework Procedure.

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SERVICE CLAIM ALLOWANCES

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Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
0-2000 hrs, 0-24 mo	100.0%	100.0%	0.0%	0.0%	0.0%	0.0%
2001-10000 hrs, 25-60 mo	40.0%	50.0%	0.0%	0.0%	60.0%	50.0%

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NOTE: This is a 1.0-hour job
Reasonable travel time and mileage is allowed. Travel time and mileage will only be authorized for one engine for multiple engines being reworked in a vessel. For other engines that are serviced on the same vessel, reference the other engine serial number(s) in the claim story.

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PARTS DISPOSITION

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

Rework Procedure

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Before completing the attached Rework procedure, please review the safety actions in the Operation and Maintenance Manual for the engine.

Caution:
Ensure the engine is shutdown and steps have been taken to prevent any attempt to start the engine while performing work on the engine.

Keep all parts clean from contaminants. Contaminants may cause premature wear and reduced component life.

Step 1: Assemble all necessary components as shown in Image 1.2.1. Item 1 (539-0111) is the new IMAT sensor, Item 2 (539-0112) is the sensor adapter and Item 3 (539-0113) is the washer. Zip ties (Item 4) are shop supply.

Image1.2.1

Parts Removal

Step 2: Disconnect the harness from the IMAT sensor as shown in Image 1.3.1.

Step 3: Remove 90 degree plastic adapter as shown in Image 1.3.2.

Step 4: Cut and remove the zip ties securing the engine harness to its bracket as shown in Image 1.3.3.

Image1.3.1

Image1.3.2

Image1.3.3

Installation of New Parts

Step 5: Install washer and adapter as shown in Image 1.4.1.

Step 6: Tighten adapter to 35Nm. Image 1.4.2

Step 7: Install sensor, tighten sufficiently for it to be free to rotate. Image 1.4.3

Step 8: Position sensor and loop the fly lead alongside the engine hardness. Attach zip ties to engine harness and bracket and finally tighten the sensor to 45Nm. Refer to Image 1.4.4.

Step 9: Reflash ECM with the appropriate dataset appropriate flashfile.