12251-881-003 SEE PART DETAILS - PRI; GASKET, CYLINDER HEAD (Honda Code 8538753). Honda
BF8AK0 LA, BF8AK0 SA
SEE
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PSP FOR OIL PUMP ROTOR ASSEMBLY FAILURES IN 953 LOADERS - PS4041 - MAILED US, COFA, CANADA, CFEL, COSA
  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 OIL PUMP ROTOR ASSEMBLY FAILURES IN CERTAIN 3204 ENGINES, 1304, PS4041 (Revised June, 1986) U-66 A-30 AU-52 C-65 E-44 O-46 See September 3, 1986 Replace Service Letter (PS4041) dated January 8, 1986, with this revised Service Letter. Dealers in Caterpillar Americas did not receive the January 8, 1986 Service Letter as a general mailing because of a limited population of the Affected Product (953 only) at the time of the Service Letter. These dealers should consider this to be the original Service Letter. 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 "PS4041" as Part Number and "7755" as Group Number. Although products in the field are to be administered as described above, dealer should purge parts stock immediately. Some of the affected product in this Program are also affected by another Program, PS4022, dated September 17, 1985 (Revised April, 1986). Dealers may want to administer this Program (PS4041) at the same time they administer the other Program (PS4022). Termination Date
June 30, 1987
Problem
The 2W1506X Oil Pump Rotor Assembly used in the Affected Product may not provide acceptable service life. The rotor assembly can experience worn, chipped or broken teeth and can result in low engine oil pressure. This has only been a problem with 2W1506X Rotor Assemblies. 2W1506 Rotor Assemblies (without the "x" after the part number) have the manufacturers name (Reef Ind.) and the part number etched on them. The 2W1506 Rotor Assemblies have provided good service life.
Affected Product
(SEE ILLUSTRATION)
Parts Needed
1 - 7C3440 or 2W1506 (Reef Ind.) Rotor Assembly 1 - 6V2588 Gasket Kit 1 - 6V8059 Gasket Kit (D4H, IT18, IT28, 916, 926.953 only) 1 - 6V6445 Gasket Kit (D3B, 931B only) 1 - 6V9881 Gasket Kit (3204 Industrial Engine only) 1 - 6V2589 Gasket Kit (943 only)
Action Required
Remove all 2W1506X Rotor Assemblies from parts stock. Remove only the rotor assemblies which have an "X" after the part number on the box (2W1506X). For affected product, first inspect the engine serial number plate. If "OP" is stamped on the plate the engine has already been reworked. If the engine has not been reworked, install the new parts using the procedures in the Service Manual. After the new rotor assembly has been installed, stamp "OP" on the engine Serial Number plate. WARRANTY ALLOWANCES Submit one claim for all 2W1506X Rotor Assemblies removed from parts stock. (SEE ILLUSTRATION)
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
PSP FOR OIL PUMP ROTOR ASSEMBLY FAILURES IN 953 LOADERS - PS4041 - MAILED US, COFA, CANADA, CFEL, COSA
  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 OIL PUMP ROTOR ASSEMBLY FAILURES IN CERTAIN 3204 ENGINES, 1304, PS4041 (Revised June, 1986) U-66 A-30 AU-52 C-65 E-44 O-46 See September 3, 1986 Replace Service Letter (PS4041) dated January 8, 1986, with this revised Service Letter. Dealers in Caterpillar Americas did not receive the January 8, 1986 Service Letter as a general mailing because of a limited population of the Affected Product (953 only) at the time of the Service Letter. These dealers should consider this to be the original Service Letter. 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 "PS4041" as Part Number and "7755" as Group Number. Although products in the field are to be administered as described above, dealer should purge parts stock immediately. Some of the affected product in this Program are also affected by another Program, PS4022, dated September 17, 1985 (Revised April, 1986). Dealers may want to administer this Program (PS4041) at the same time they administer the other Program (PS4022). Termination Date
June 30, 1987
Problem
The 2W1506X Oil Pump Rotor Assembly used in the Affected Product may not provide acceptable service life. The rotor assembly can experience worn, chipped or broken teeth and can result in low engine oil pressure. This has only been a problem with 2W1506X Rotor Assemblies. 2W1506 Rotor Assemblies (without the "x" after the part number) have the manufacturers name (Reef Ind.) and the part number etched on them. The 2W1506 Rotor Assemblies have provided good service life.
Affected Product
(SEE ILLUSTRATION)
Parts Needed
1 - 7C3440 or 2W1506 (Reef Ind.) Rotor Assembly 1 - 6V2588 Gasket Kit 1 - 6V8059 Gasket Kit (D4H, IT18, IT28, 916, 926.953 only) 1 - 6V6445 Gasket Kit (D3B, 931B only) 1 - 6V9881 Gasket Kit (3204 Industrial Engine only) 1 - 6V2589 Gasket Kit (943 only)
Action Required
Remove all 2W1506X Rotor Assemblies from parts stock. Remove only the rotor assemblies which have an "X" after the part number on the box (2W1506X). For affected product, first inspect the engine serial number plate. If "OP" is stamped on the plate the engine has already been reworked. If the engine has not been reworked, install the new parts using the procedures in the Service Manual. After the new rotor assembly has been installed, stamp "OP" on the engine Serial Number plate. WARRANTY ALLOWANCES Submit one claim for all 2W1506X Rotor Assemblies removed from parts stock. (SEE ILLUSTRATION)
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Parts see Honda:
36182-ZV4-650
36182-ZV4-650 SEE PART DETAILS - SUP; WIRE, EMERGENCY (Honda Code 3704129).
BF115A1 LA, BF115A1 LCA, BF115A1 XA, BF115A1 XCA, BF115A2 LA, BF115A2 LCA, BF115A2 XA, BF115A2 XCA, BF115A3 LA, BF115A3 LCA, BF115A3 XA, BF115A3 XCA, BF115A4 LA, BF115A4 LCA, BF115A4 XA, BF115A4 XCA, BF115A5 LA, BF115A5 LCA, BF115A5 XA, BF115A5 XCA,
17650-921-003ZB
17650-921-003ZB SEE PART DETAILS - PRI; CONNECTOR, FUEL *NH1* (Honda Code 2920890). (BLACK)
BF5A1 LA, BF5A1 SA, BF5A2 LA, BF5A2 SA, BF5A3 LA, BF5A3 SA, BF5A4 LA, BF5A4 SA, BF5A5 LA, BF5A5 SA, BF5A6 LA, BF5A6 SA, BF5AK0 LA, BF5AK0 SA, BF5AM LA, BF5AM SA, BF5AW LA, BF5AW SA, BF5AX LA, BF5AX SA, BF5AY LA, BF5AY SA, BF8A3 LA, BF8A3 SA, BF8A4 LA
17660-ZW9-003
17660-ZW9-003 SEE PART DETAILS - PRI; CONNECTOR, FUEL (Honda Code 6639777).
BF115A1 LA, BF115A1 LCA, BF115A1 XA, BF115A1 XCA, BF115A2 LA, BF115A2 LCA, BF115A2 XA, BF115A2 XCA, BF115A3 LA, BF115A3 LCA, BF115A3 XA, BF115A3 XCA, BF115A4 LA, BF115A4 LCA, BF115A4 XA, BF115A4 XCA, BF115A5 LA, BF115A5 LCA, BF115A5 XA, BF115A5 XCA,
17661-921-010
17661-921-010 SEE PART DETAILS - PRI; PRIMER BULB (Honda Code 7604903).
BF115A1 LA, BF115A1 LCA, BF115A1 XA, BF115A1 XCA, BF115A2 LA, BF115A2 LCA, BF115A2 XA, BF115A2 XCA, BF115A3 LA, BF115A3 LCA, BF115A3 XA, BF115A3 XCA, BF115A4 LA, BF115A4 LCA, BF115A4 XA, BF115A4 XCA, BF115A5 LA, BF115A5 LCA, BF115A5 XA, BF115A5 XCA,
19210-881-A02
19210-881-A02 SEE PART DETAILS - PRI; IMPELLER, PUMP (Honda Code 6246565).
BF5A1 LA, BF5A1 SA, BF5A2 LA, BF5A2 SA, BF5A3 LA, BF5A3 SA, BF5A4 LA, BF5A4 SA, BF5A5 LA, BF5A5 SA, BF5A6 LA, BF5A6 SA, BF5AK0 LA, BF5AK0 SA, BF5AK2 LA, BF5AK2 SA, BF5AK3 LA, BF5AK3 SA, BF5AM LA, BF5AM SA, BF5AW LA, BF5AW SA, BF5AX LA, BF5AX SA, BF5A
87123-881-A21
87123-881-A21 SEE PART DETAILS - PRI; LABEL, INDICATION (E) (Honda Code 7536287).
BF8A3 LA, BF8A3 SA, BF8A4 LA, BF8A4 SA, BF8A5 LA, BF8A5 SA, BF8A6 LA, BF8A6 SA, BF8AK0 LA, BF8AK0 SA, BF8AM LA, BF8AM SA, BF8AM XA, BF8AW LA, BF8AW SA, BF8AW XA, BF8AX LA, BF8AX SA, BF8AX XA, BF8AY LA, BF8AY SA, BF8AY XA
94301-10120
94301-10120 SEE PART DETAILS - PRI; PIN, DOWEL (10X12) (Honda Code 2028900).
BF115A1 LA, BF115A1 LCA, BF115A1 XA, BF115A1 XCA, BF115A2 LA, BF115A2 LCA, BF115A2 XA, BF115A2 XCA, BF115A3 LA, BF115A3 LCA, BF115A3 XA, BF115A3 XCA, BF115A4 LA, BF115A4 LCA, BF115A4 XA, BF115A4 XCA, BF115A5 LA, BF115A5 LCA, BF115A5 XA, BF115A5 XCA,
36182-ZV4-651
36182-ZV4-651 SEE PART DETAILS - PRI; WIRE, EMERGENCY (Honda Code 8576969).
BF115A1 LA, BF115A1 LCA, BF115A1 XA, BF115A1 XCA, BF115A2 LA, BF115A2 LCA, BF115A2 XA, BF115A2 XCA, BF115A3 LA, BF115A3 LCA, BF115A3 XA, BF115A3 XCA, BF115A4 LA, BF115A4 LCA, BF115A4 XA, BF115A4 XCA, BF115A5 LA, BF115A5 LCA, BF115A5 XA, BF115A5 XCA,