DISC-FRICTION 3570450 - Caterpillar

SEBE8577 November 18, 2003
U-319
A-218
D-237
O-267
beforeor
after failure PRODUCT SUPPORT PROGRAM FOR REPLACINGTHE MAIN BEARING STUDS ON CERTAIN 3606, 3608, 3612, 3616, G3606, G3608,G3612, AND G3616 INDUSTRIAL ENGINES
1201 PS41467
This Program can be administered eitherbefore or after failure. In either case the decision whether to apply theProgram is made by the dealer. When reporting the repair, use "PS41467"as the Part number and "7755" as the Group Number. If administered beforefailure, use "56" as the Warranty Claim Description Code and use "T" asthe SIMS Description Code. If administered after failure, use "96" as theWarranty Claim Description Code and use "Z" as the SIMS Description Code. The information supplied in this serviceletter may not be valid after the termination date of this program. Donot perform the work outlined in this Service Letter after the terminationdate without first contacting your Caterpillar product analyst.TERMINATION DATE
November 30, 2005PROBLEM
The main bearing studs need to be replaced oncertain 3606, 3608, 3612, 3616, G3606, G3608, G3612, and G3616 IndustrialEngines. It was discovered that a number of pieces within a particularlot number of bolts were manufactured below the nominal requirements ofthe hardness specification. This problem can cause a bolt to yield morethan the specification allows.AFFECTED PRODUCT
Model Identification Number
*** Group 1 (Inspection Only)***
3606 8RB887, 888
3608 6MC673, 681, 682
G3606 4ZS315, 316, 324, 325,326, 327
G3608 BEN228, 230
G3612 BKE227
G3616 BLB187, 188
*** Group 2 ***
3608 6MC677, 678, 679, 687,688
3612 9RC395, 400, 401
3616 1PD400
G3608 BEN229
G3612 BKE228
G3616 BLB198PARTS NEEDED
Qty
Part Number Description
6-16 1W0121 STUD-TAPERLOACTION REQUIRED
See the attached Rework Procedure.SERVICE CLAIM ALLOWANCES
Product smu Caterpillar Dealer Suggested Customer Suggested
Parts Labor Hrs Parts Labor Hrs Parts Labor Hrs
0-500 100% 40.0 0 0 0 0
This is at most a 40.0?hr job.Caterpillar will pay the following labor plustravel and miscellaneous expenses:
Inspection allowance is 2 hrs. per engine. Thoselisted in Group 1 need only to be inspected.
Stud change allowance = 2 hrs. per stud plus 4hrs. per engine (group 2 engines only) for removal and replacement of starters,oil, etc.
All of the main studs on the engines listed belowwill require visual inspection and those studs with a steel lot numberof FC602 must be replaced.
FC602 indication does not mean thestud is necessarily bad, but it is within the lot where it could be bad.All studs in the parts system even those markedFC602