40201-ZW6-020ZA Honda CASE, EXTENSION *NH246* (Honda Code 8580250). (LOOSY GRAY)

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PSP FOR INSTALLING NEW TURBOCHARGERS ON CERTAIN 789 TRUCKS AND 3516 ENGINES (SPARE) - PS4472 - MAILED US AND CANADA, COFA, LIM ITED CACO, LIMITED COSA, LIMITED CFEL
  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.
U-192 A-132.2 AU-122 E-115.1 O-148.2 1052 PS4472 This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS4472" as Part Number, "7755" as Group Number, and "96" as Description Code. Termination Date
September 30, 1991
Problem
New turbochargers can be installed on certain 789 Trucks and 3516 Engines (Spare) to improve performance/response, lower smoke levels, and reduce exhaust gas temperatures. These turbochargers also include the improvements to the compressor wheel, turbine wheel, and bearing housing that were implemented in the May 27, 1989 Service Letter - PS4278.
Affected Product
Model Identification Number 789 9ZC1-454, 457, 458, 460-462 3516 54Z170, 179, 190, 196, 206, 217, 233, 239, 240, 264, 284, 291, 293-296, 311, 334, 349, 350, 364, 381, 384, 385, 406, 407, 431, 432, 441, 458-461, 494, 495, 512
Parts Needed
***** If Remanfuactured Products Are Available ***** 1 - 7M7273 Gasket 1 - 7N7559 Gasket 4 - 7N7628 Gasket 1 - 7N8875 Gasket 1 - 0R6158 Turbocharger 2 - 5P5700 Seal Quantities listed are per turbocharger. There are 4 turbochargers per Affected Product. ***** Only If Remanfuactured Products Are Not Available ***** 9ZC1-335 9ZC336-462 1 - 7M7273 Gasket 1 - 7C6370 Clamp 1 - 7N7559 Gasket 1 - 7M7273 Gasket 4 - 7N7628 Gasket 1 - 7E9496 Turbine Housing 1 - 7N8875 Gasket 1 - 7E9497 Turbocharger 2 - 5P5700 Seal Quantities listed are per turbocharger. There are 4 turbochargers per Affected Product.
Action Required
Replace each of the four existing turbochargers with a 0R6158 Turbocharger, the new gaskets, and seals. Adjust the smoke limiter to the proper setting.
Service Claim Allowances
Product Caterpillar Dealer Suggested Customer Suggested smu Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (D/N) (Cost) (C/L) (Sell) 0-4000 100% 4 0 4 0 0 4001-7000 33 1/3% 2 0 2 50% 4 This is an 8-hour job to replace all four turbochargers. If there has been a previous repair in which the customer participated, part age will apply. Retain a copy of the previous repair invoice in the dealer's records for audit purposes, and specify repair date and machine hours in the "Additional Comments" section of the warranty claim. When filing a claim for a spare engine use the following serial numbers as the vehicle serial number: U.S. Dealers - 99Z21 Canadian and CACO Dealers - 99Z621 CofA Dealers - 99Z121 CFEL Dealers - 99Z821 COSA Dealers - 99Z421
Parts Disposition
Any parts removed (with the exception of cores used for Caterpillar Remanufactured parts) can be rendered useless and scrapped immediately upon completion of the repair.