156810-0720 ZEXEL 9 423 611 558 BOSCH FLYWEIGHT ASSEMBLY 9423611558 1568100720 1157430500

Caterpillar: Confidential Yellow
PSP FOR REPLACING ERODED CYLINDER HEAD INJECTOR SLEEVES IN CERTAIN IT14B INTEGRATED TOOLCARRIERS; E110B, E120B, E200B, EL2 00B, 213B, 214B, 224B, E240B, EL240B EXCAVATORS; 446 BACKHOE LOADERS; AND 3114 AND 3116 INDUSTRIAL AND GENERATOR SET EN GINES - PS0456 - US, CANADA, CACO, LTD COFA - REVISED 10/90
  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.
(Revised October 1990) U-130 A-88 AU-86.1 1100, 1290 PS0456 This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS0456" as Part Number, "7755" as Group Number, and "96" as Description Code. If this Program is administered on E200B or EL200B Excavators, it is recommended that the June 22, 1990 Service Letter - PS4442 be done at the same time. This Revised Service Letter replaces the June 25, 1990 Service Letter. Changes have been made to add Affected Product. Termination Date
June 30, 1991
Problem
The fuel injector sleeves in the cylinder head of certain IT14B Integrated Toolcarriers; E110B, E120B, E200B, EL200B, 213B, 214B, 224B, E240B, and EL240B Excavators; 446 Backhoe Loaders; CB-434, CP-563, and CS-563 Compactors; AP-1050 Asphalt Pavers; and 3114 and 3116 Industrial and Generator Set Engines are subject to pitting and erosion due to fuel cavitation between the injector and the sleeve. The sleeves may pit or crack through, allowing fuel to contaminate the coolant. Coolant contaminated with fuel may also damage the radiator and coolant hoses.
Affected Product
Model Identification Number IT14B 3NJ1-42 E110B 8MF1-151 E120B 6JF1-212 E200B* 6KF1-439 6KG1-249 EL200B* 7DF1-986 213B 1EJ1-233, 236-245, 247, 248 214B