YOKE-BRAKE FLANGE 1031713 - 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 must be administered as soon as possible. When reporting the repair, use "PI3814" as the Part Number, "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 "PI3814" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.
This Revised Service Letter replaces the November 2, 1995 (Revised April 1996) Service Letter. Changes have been made to the COMPLETION DATE and TERMINATION DATE.
Completion Date
September 30, 1997Termination Date
December 31, 1997Problem
The G3500 Electronic Ignition System (EIS) Control Module has been upgraded to provide improvements in detonation detection, timing, and shutdown control strategies. The existing field units shipped prior to production effectivity of the new configuration will be replaced with remanufactured units for improved ignition system control and reliability.
Affected Product
Model & Identification Number
G3508 (9TG12-47)
G3512 (5JD12-19)
G3512 (7NJ12-95)
G3516 (4EK12-456)
G3516 (8LD12-27)
Parts Needed
The remanufactured modules are not available through the parts system and therefore will be provided by the Caterpillar Gas Engine Customer Service Department. They will be shipped directly to the appropriate dealers according to a predetermined Priority schedule.
Action Required
See the attached procedure.
Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification.
Service Claim Allowances
As the parts are not available through the parts system, dealers may claim $100.00 USD for the parts on this rework.
This is a 2-hour job.
Return shipping will be paid by Caterpillar, Inc.
Parts Disposition
All control modules removed from an engine, along with the engine data sheet should be returned to:
Caterpillar, Inc.
Attn: R. Munguia/EISCM Upgrade Program
Bldg. B - Claims Room
3701 State Road 26 East
Lafayette, Indiana 47905 U.S.A.
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
Rework Procedure
Before a module is replaced on and engine, the following should be thoroughly reviewed:
The upgrade unit is intended to replace the EIS Control Module currently installed on a running engine. Complete the Electronic Troubleshooting Guide Self Test, P-518, on the existing engine module prior to replacement with the upgrade unit. If the existing module fails a self-test, it should NOT be replaced with an upgrade unit. It should be replaced through warranty, if applicable. If not warrantable, the customer should pay the cost of a new 1244565 Module. If the existing module passes the self test procedure, it can then be replaced and returned per this program.
If the engine has been previously updated with a 1244565 Control Group, it is NOT a candidate for this program. The engine serial number, customer, and dealer contact person information should be faxed to Ralph Munguia at fax number (317) 448-5985. An electronic mail note to MUNGUR will also be acceptable. Information about engines that