SHIELD AS 1W6185 - Caterpillar

Caterpillar: Confidential Yellow
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 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 "PS5342" 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.
Termination Date
October 31, 1998Problem
The 2W3791 and 7W5130 Air Pipes used in the 1W0888 and the 1W0921 Aftercooler Groups may wear abnormally due to engine vibration. This may cause an air leak resulting in a loss of air inlet manifold pressure.
Affected Product
Model & Identification Number
3612 (9RC13, 9RC15-25, 9RC27-73, 9RC75-85, 9RC87-106, 9RC108-241 9FR13-16 )
3616 (1PD18-20, 1PD22, 1PD24-168, 1PD176, 1PD178, 1PD180-253, 1PD260-266, 1PD269-282 1FN138-149 )
Parts Needed
18 - 0S1591 Bolt 6 - 0T0573 Bolt48 - 3V3308 Washer 4 - 1356950 Seal-O-Ring 2 - 1369706 BellowAction Required
Replace the 2W3791 and 7W5130 Air Pipes with the parts listed in this program.
Right Side ViewService Claim Allowances
This is a 2-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.