RETAINER 8A7865 - Caterpillar

REBE7945-01
11Jan2012
(Revised 17Jan2012)
U-18
A-16
D-19
O-19
Priority
PRODUCT IMPROVEMENT PROGRAM FOR UPDATING THE ENGINE SOFTWARE ON CERTAIN C175 GENERATOR SETS OPERATING AT 1500 RPM
1901 1920 PI31973
This Program must be administered as soon as possible.When reporting the repair, use "PI31973" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Codeand "T" as the SIMS Description code. Exception: If the repair is done after failure, use "PI31973" as the Part Number, "7751" as the Group Number,"96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.
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 Revised Service Letter replaces the 11Jan2012 Service Letter. Changes have been made to the Parts Needed.
COMPLETION DATE
TERMINATION DATE
31Jul2012 31Jan2013
PROBLEM
The engine ECM software needs to be updated on certain C175 Generator Sets operating at 1500 RPM. The existing software may lead to an excessive peak in cylinder pressure and subsequent engine failure at high load.
AFFECTED PRODUCT
Model Identification Number
C175-16 WYB00108, 118, 124, 127-128, 139, 141, 173-174, 178-185, 187-188, 192, 199-200, 204-205, 210-212, 216-217, 219-220, 223-230, 234-246, 248, 253-259, 261, 263, 268-270, 307, 309-318, 320-321, 324, 326, 332-333, 339, 341, 343, 354, 358, 363, 366-370, 372-374, 378, 380-386, 388, 391-392, 395, 398, 410, 412-414, 416-419, 421-425, 435, 440-441, 451, 453, 466, 468, 470-471