CAP 9V6471 - Caterpillar

Caterpillar: Confidential Yellow
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.
This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS8729" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
Termination Date
October 31, 1997Problem
New software has been developed that provides improved diagnostics on CMS equipped engines. The new diagnostics incorporate improved accuracy and include some diagnostics which were not available on the original software.
Affected Product
Model & Identification Number
G3606 (3XF17, 3XF18, 3XF21-59)
G3608 (4WF16-43)
G3612 (1YG20-92)
G3616 (4CG24-56)
Parts Needed
Only one film is required for each engine.
1 - 1179691 FILM-CONTROL1 - 1180374 FILM-CONTROL1 - 1182403 FILM-CONTROL1 - 1182404 FILM CONTROL1 - 1182405 FILM-CONTROL1 - 1182411 FILM-CONTROL1 - 1182413 FILM-CONTROLAction Required
See the attached rework procedure.
Service Claim Allowances
This is a 4-hour job.
The servicing dealer will be allowed to claim $105.00 as a handling fee for the personality module.
Parts Disposition
Return the personality modules to:
Caterpillar, Inc.
Bldg B Claims Room
Attn: G3600 Rework
3701 State Road 26 East
Lafayette, Indiana 47905
Attach.(1-Rework Procedure)Rework Procedure
Complete the attached questionnaire for each engine to be updated. Send the questionnaire to Caterpillar in Lafayette, Indiana. After the questionnaire has been received, Caterpillar Large Engine Center will ship the personality module. When the new personality module is received, use the attached installation procedure to install the new module. Install the desired Engine Supervisory System (ESS) panel film selected from the following chart:
Update customer service manual with SENR6510-03 Troubleshooting on both inline and vee engines. For inline engines upgrade, order SENR4258-03 Systems Operation, Testing and Adjusting. For vee engines upgrade, order SENR5528-03 Systems Operation, JTesting and Adjusting.
Engine Supervisory System Panel Films
ECM and Personality Module
Standard Mounting of Gas Shut Off ValveImproved Diagnostic Software For G3600 Series Engines
Installation Instructions
Read the instructions completely before installing.
The Diagnostic Display Tool (DDT) must have software version 1.6 installed to acquire the information needed to complete the table below. To check the software version, power up the DDT and advance to screen 00 (zero zero).
Step 1 With the engine stopped and the mode control switch in the STOP position, record the following: Step 2 Rotate the mode control switch to the OFF/RESET position.After the panel has completely powered down, install the new personality module.Step 3 Rotate the mode control switch to the STOP position.The mode control switch must remain in the STOP position for five minutes.The prelube switch (screen 65 on the DDT) must be de-energized for this five minute interval. Step 4 Read the intake manifold pressure on CMS gage #4.If the value is within 2 kPa, or .29 psi of