154403-8500 ZEXEL 9 421 611 484 BOSCH COILED SPRING 9421611484 1544038500 8943399690

Caterpillar: Confidential Yellow
PSP FOR INSTALLATION OF NEW INTERNAL FUEL INJECTION LINES ON CERTAIN 992C LOADERS; 773B TRUCKS; D9L, 651E, 657E, 772B TRA CTORS - MAILED US AND CANADA, CACO, COSA, LIMITED BRAZIL
  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.
PRODUCT SUPPORT PROGRAM FOR INSTALLATION OF NEW INTERNAL FUEL INJECTION LINES ON CERTAIN 992C LOADERS; 773B TRUCKS; D9L, 651E, 657E, 772B TRACTORS, 1252, PS4094 U-116 A-52 C-112 B-10.1 O-84 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 "PS4094" as Part Number and "7755" as Group Number. Although products in the field are to be administered as described above, dealers should purge parts stock immediately. Termination Date
November 30, 1987
Problem
There have been some failures of the 2W8142 Line As. (internal fuel lines - under the valve cover) on the Affected Product. These failures have been cracks in the fuel lines which can result in poor engine performance and dilution of the engine oil with fuel. New fuel lines are now used in production.
Affected Product
Model Identification Number D9L 14Y2971, 3023-3039, 3041-3046, 3048-3139, 3141-3569, 3571-3609, 3611-3661, 3663-3675, 3677-3686, 3688-3697, 3699-3701, 3705-3707, 3709-3730, 3732-3775, 3777-3960, 3962-3966, 3974-3976, 3983 651E 89Z109 - 113, 116-142 657E 90Z127 - 133, 135-173 91Z217 - 282 772B 64W172, 173 773B 63W1443, 1462, 1464-1489, 1491-1827, 1831, 1836, 1842, 1843 992C 49Z622, 623, 626-628, 630, 634, 636, 638, 639, 641-643, 645-649, 651-765, 767-771, 773-819, 821-939, 944
Parts Needed
12 - 7C5570 Line As. Use as needed. If one or more 7C5570 Line As. have already been installed, they should not be replaced. Only replace the 2W8142 Line Assemblies.
Action Required
Parts Stock Remove all 2W8142 Line Assemblies from parts stock. Affected Product All 2W8142 Line Assemblies on an engine should be replaced at the same time. Install the new parts according to the procedures in the appropriate Service Manuals. WARRANTY ALLOWANCES Parts Stock Submit one claim for all 2W8142 Line Assemblies that are removed from parts stock. (SEE ILLUSTRATION)
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.