CONTROL GP-THROTTLE 4499291 - Caterpillar

Caterpillar: Confidential Yellow
SERVICE LETTER SUPPLEMENT FOR DECEMBER 7, 1990 SL - PSP FOR UPDATING THE GOVERNOR SHUTOFF GROUP ON CERTAIN 3408 AND 3412 GEN ERATOR SET AND INDUSTRIAL ENGINES EQUIPPED WITH ENERGIZE TO RUN FUEL SHUTOFF SOLENOIDS - PS4539 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
  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.
U-31 A-24 AU-20 E-28 O-30 Some information needs to be changed in the Service Letter which follows: December 7, 1990 - PS4539; Product Support Program For Updating The Governor Shutoff Group On Certain 3408 And 3412 Generator Set And Industrial Engines Equipped With Energize To Run Fuel Shutoff Solenoids Under the headings Problem and Affected Product, change the 7W1075 Solenoid Assembly to a 7X1075 Solenoid Assembly.