GUIDE-VALVE 2033237 - Caterpillar

SEBE8804 June 2, 2004
U-175
A-121
D-134
O-144
Priority PRODUCT IMPROVEMENT PROGRAM FOR INSPECTINGTHE CYLINDER HEAD VALVE ROTATOR ON CERTAIN G3520C GENERATOR SETS
1100 PI30680
This Program must be administered assoon as possible. When reporting the repair, use "PI30680" as the Partnumber and "7751" as the Group Number, "56" as the Warranty Claim DescriptionCode and "T" as the SIMS Description Code. Exception: If the repair isdone after failure, use "PI30680" as the Part Number, "7751" as the GroupNumber, "96" as the Warranty Claim Description Code, and "Z" as the SIMSDescription Code. The information supplied in this serviceletter may not be valid after the termination date of this program. Donot perform the work outlined in this Service Letter after the terminationdate without first contacting your Caterpillar product analyst.
COMPLETION DATE
TERMINATION DATE
December 31, 2004 June 30, 2005PROBLEM
The cylinder head valve rotator needs to be inspectedon certain G3520C Generators Sets. Due to a design tolerance stack up problemthe cylinder head valve rotator could interfere with the valve bridge assembly.This could cause