407918-1150 ZEXEL 0 281 012 872 BOSCH CONTROL UNIT 0281012872 4079181150

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 - MAILED CFEL
  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.
E-81 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 23, 1990 Service Letter - PS4442 be done at the same time. 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; 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 4CF1-261, 263, 265-275, 278 9MF1-171, 173-182, 185 224B 7WF1-47, 51, 56, 65 E240B 8SF1-36 9PF1-196 EL240B 5WG1-166 6MG1-104 446 6XF1-227 3114 5EF1-675 6AF1-581 1ZG1-432 5JG1-743 3116 2SG1-936 2WG1-859 4PG1-611 1NJ1-999 * The E200B and EL200B Excavators need to be updated to a new injector design released for that machine. The new injectors have a different orifice size to help eliminate black smoke problems reported on some earlier machines. When replacing injectors on E200B and EL200B Excavators, use injector part number 7E8729 if available. Reset the fuel setting and timing if the injectors are available.