STUD-TAPERLOCK 3D0490 - Caterpillar

Product Support Program For Replacing The Electronic Control Group (Temperature/Pressure) On Certain 3208, 3304, 3306, 3406, 3408, 3412, 3508, 3512, 3516, 3606 SI, And 3612 SI Generator Set Engines
SMCS - 4490 PS4757
April 24, 1992
U-63
A-45
AU-41
B-26
E-36
O-52
TM-5 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 "PS4757" 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.
Although this Program is to be administered as described above on the Affected Product, parts should be removed from parts stock as soon as possible.
Termination Date
April 30, 1993Problem
A capacitor may not have been installed correctly in the 9X8203 Electronic Control Group (Temperature/Pressure) on certain 3208, 3304, 3306, 3406, 3408, 3412, 3508, 3512, 3516, 3606 SI, and 3612 SI Generator Set Engines.
Affected Product
Model & Identification Number
3208 (29A2278-2630; 30A4031-4863; 5YF1122-1285)
3304 (83Z5995-6730)
3306 (2AJ191-669; 85Z03798-08869)
3406 (2WB8116-10944; 4RG966-1360)
3408 (78Z3643-4376)
3412 (81Z7311-12361)
3508 (1ZF578-620; 23Z3484-3865; 70Z769-788)
3512 (3YF557-617; 24Z3679-4047; 67Z798-878)
3512 SI (4KC190-255)
3516 (4XF373-390; 25Z2156-2458; 73Z406-502)
3516 SI (3RC302-417)
3606 SI (3XF17-21)
3612 SI (1YG20-24)
Parts Needed
1 - 0R6556 Control GroupAction Required
Parts Stock
Remove all 9X8203 Electronic Control Groups (Temperature/Pressure) from parts stock.
Affected Product
Remove the existing 9X8203 Electronic Control Group (Temperature/Pressure) and replace it with a 0R6556 Control Group.
Service Claim Allowances
Parts Stock
Submit one claim for all 9X8203 Electronic Control Groups (Temperature/Pressure) removed from parts stock.
Affected Product
This is a 1-hour job.
Parts Disposition
Parts Stock And Affected Product U.S. and Canadian Dealers
Return all 9X8203 Electronic Control Groups, that are removed from parts stock or from the affected product, and a copy of the claim to:
Caterpillar Inc.
Attn: Harmon\Griffith
Warehouse #4 Docks 7 thru 10
8201 N. University
Peoria, IL 61615
All Other Dealers
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.