FAN GP-SUCTION 3650010 - Caterpillar

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 "PS5692" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
This Revised Service Letter replaces the November 24, 1999 (Revised March 2000)Service Letter. Changes have been made to the Parts Needed.
Termination Date
May 31, 2002Problem
The C-frame may fail and needs to be replaced on certain D3C, D4C, and D5C Series III Track Type Tractors. The failure is due to a problem with the welding of the box cross section plates.
Affected Product
Model & Identification Number
D3C III (6SL2556-2897, 7XL1108-1494, 4KS1-689, 4TS1-716, 5GS1-500, 9TS1-442)
D4C III (6YL1990-2251, 7SL674-876, 4LS1-410, 6BS1-515, 8CS1-837, 1FW1-462)
D5C III (9DL2023-2528, 6ZL795-1091, 5HS1-629, 6CS1-597, 7PS1-955, 8ZS1-446)
Parts Needed
8 - 5P2228 Bolt (All machines except 6SL)8 - 8T4223 Washer (All machines except 6SL)1 - 1396790 Frame Assembly (for 6SL only)1 - 1401060 Frame As. (6YL, 6BS, 1FW, 8CS, 7SL, 4LS, 9DL, 5HS)1 - 1402780 Frame Assembly (for 4KS, 9TS, 4TS, 7XL and 5GS)1 - 1411590 Frame Assembly (for 8ZS and 7PS)1 - 1415600 Frame Assembly (for 6ZL and 6CS)2 - 1503806 Pin (All machines except 6SL)4 - 1706631 Bar (All machines except 6SL)2 - 1706632 Pin (All machines except 6SL)Action Required
Replace the C-frame if it has cracked along the box cross section welds. See Illustration 1.
Service Claim Allowances
This is a 6-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Attach.(1-Illustration of C-frame)Illustration Of C-Frame
Illustration 1.