HOSE ASSEM. 12 dm(48.03 in.) 2V0207 - Caterpillar

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.
This Program must be administered as soon as possible. When reporting the repair, use "PI3788" 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 "PI3788" 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
January 31, 1996Termination Date
July 31, 1996Problem
The bolts in the turbocharger compressor housing may fail on certain 3606, 3608, 3612 and 3616 Engines.
Affected Product
Model & Identification Number
3606 (8RB296, 8RB297, 8RB305, 8RB313, 8RB317, 8RB321-323, 8RB329, 8RB349, 8RB350, 8RB369, 8RB370, 8RB376, 8RB378, 8RB390, 8RB391, 8RB398, 8RB408, 8RB422, 8RB432, 8RB436, 8RB437, 8RB449, 8RB450, 8RB457, 8RB462, 8RB463, 8RB473, 8RB476, 8RB479, 8RB500, 8RB501, 8RB504, 8RB505, 8RB508, 8RB509)
3608 (6MC289, 6MC326, 6MC341-344, 6MC362-363)
3612 (9RC51, 9RC86, 9RC88, 9RC100, 9RC101, 9RC116, 9RC117, 9RC123, 9RC124)
3616 (1PD55-58, 1PD73-76, 1PD86-89)
Parts Needed
Dealers will need to order parts for this Program.
16 - 3B4508 Lockwasher16 - 6V3668 BoltAction Required
See attached rework procedure.
Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification.
Service Claim Allowances
This is a 2-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
Attach.(1-Owner Notification)(2-Rework Procedure)Copy Of Owner Notification For U.S. And Canadian Owners
Rework Procedure
Refer to the illustration below.
1. At location "A"remove the twelve existing 6V3668 Bolts and 3B4508 Lockwashers. Install twelve new 6V3668 Bolts and 3B4508 Lockwashers. Bolts should be removed and replaced one at a time so the compressor housing "C" does not come loose.
2. At location "B", remove four of the six existing 6V3668 Bolts and 3B4508 Lockwashers. Install four new 6V3668 Bolts and 3B4508 Lockwashers. The remaining two bolts and lockwashers are not accessible, and do not need to be replaced.