The Payload Measurement System Control Groups Need To Be Replaced On Certain 777B, 777C, 785B, 789B, 793 And 793B Trucks Caterpillar

NOTE: 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.

NOTE: This Program must be administered as soon as possible. When reporting the repair, use "PI3635" as the Part Number, "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description Code. Exception: If the repair is done after failure, use "PI3635" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

Completion Date

Termination Date

Problem

The 1019980 Control Groups of the payload measurement system need to be replaced on certain 777B, 777C, 785B, 789B, 793 and 793B Trucks.

Affected Product
Model & Identification Number

777B 4YC1790

777C 4XJ124-, 4XJ129-130, 4XJ134, 4XJ189, 4XJ189, 4XJ191

785B 6HK110-124

789B 7EK121-140

793 3SJ56

793B 1HL15-26

Parts Needed

Dealers will need to order parts for this Program.

4 - 0R6669 Control Group

Action Required

Replace the four existing 1019980 Control Groups with four 0R6669 Control Groups.

Owner Notification

U.S. and Canadian owners will receive the attached Owner Notification.

Service Claim Allowances

NOTE: This is a 3-hour job.

NOTE: U.S. and Canadian Dealers Only - Eligible dealers may enter a Type 2 SIMS Report.

Parts Disposition

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

NOTE: MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

Attach. (1-Owner Notification)

Copy Of Owner Notification For U.S. And Canadian Owners