NUT 1930042 - Caterpillar

TEBE1377-00
09May2014
U-260
A-197
D-235
O-225
TM-9
Priority
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING THE CAMSHAFT GEAR BACKLASH ADJUSTMENT AND POSSIBLY REPLACING CERTAIN FRONT GEARS ON CERTAIN C18 MARINE ENGINES
1151 1162 1206 1212 PI32340
This Program must be administered as soon as possible.When reporting the repair, use "PI32340" 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 "PI32340" 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.
COMPLETION DATE
TERMINATION DATE
30Nov2014 31May2015
PROBLEM
The camshaft to adjustable idler gear backlash may be incorrectly set during engine assembly on certain C18 Marine Engines. Operation may result in exceedingly high gear or speed sensor temperatures. Gear discoloring and/or camshaft speed sensor diagnostic code 342-8 may be present as a result.
AFFECTED PRODUCT
Model Identification Number
*******Group 1*******
C18 JKX01415-01416, 1453, 1760, 1803-1804, 1943
JLE00133, 156, 163-164, 286-287