PSP FOR RACK INTERFERENCE IN THE REAR GOVERNOR HOUSING; 3304, 3306 ENGINES WITH NSFS - MAILED US AND CANADA, CACO, COFA, CFE L, COSA
Usage:
@media screen {
div.divFooter {
display: none;
}
}
@media print {
div.divFooter {
position: fixed;
bottom: 0;
right: 0;
}
}
PSP FOR RACK INTERFERENCE IN THE REAR GOVERNOR HOUSING; 3304, 3306 ENGINES WITH NSFS - MAILED US AND CANADA, CACO, COFA, CFE L, COSA
NOTE:   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 RACK INTERFERENCE IN THE REAR GOVERNOR HOUSING; 3304, 3306 ENGINES WITH NSFS, 1287, PS4052 U-19 A-12 AU-17 C-19 E-16 O-15 NOTE: This Program can be administered either before or after a failure. When reporting the repair, use "PS4052" as Part Number and "7755" as Group Number.
Termination Date
March 31, 1987
Problem
A casting change was made to the 8N2501 (Rear) Governor Housing used on the above products. This change eliminated a needed boss in the housing. Without the boss, it is possible for the shutoff lever (2W5373) to swing back into the governor housing causing the front of the lever to miss the end of the servo shaft. When the lever misses the end of the servo shaft, the rack normally will be held in a near shutoff position. It is also possible, but unlikely, for the rack to be held in the full open position. The misengagement of the shutoff lever and the servo shaft can only occur when the rear governor housing is being installed after a repair.
Affected Product
Ranges are shown for the products. Not all the products in the ranges need to be reworked. Model Serial/Identification Number 3304 Industrial 10E1545-1577 3304 Marine 13E699-708 3304 Generator Set 83Z2710-2860 3306 Truck 63Z2612-2760 3306 Industrial 64Z4204-4342 3306 Marine 84Z773-802 3306 Generator Set 85Z2241-2384 D6D 5X1278-1280 6X2051 D6H 4RC430-488 D7H 79Z836-884 77Z871, 872 12G 3WC900-907 61M11229-11284 14G 96U6723-6746 120G 2AB47-51 87V7531-7811 130G 7GB1671-1886 59K68-71 74V2239-2254 140G 72V9065-9077 235B 7WC306 518 94U1355 528 96C297-300 615 46Z1266-1268 627B 14S1286-1291 15S1734-1737 815B 17Z640-654 816B 15Z579-588 936 33Z1603-1781 950B 22Z2012-2053 966D 99Y4125-4140
Parts Needed
1 - 5H1351 Pin (Spring)
Action Required
Check to see if the product needs to be reworked. The 8N2501 Governor Housings, which is unacceptable, can be identified by internal differences in the casting. See Illustration 1. Also check to see if the housing has already been reworked. The letter "P" is stamped on all housings that have already been reworked. See Illustration 2. ILLUSTRATION 1 (SEE ILLUSTRATION) ILLUSTRATION 2 (SEE ILLUSTRATION) To rework the 8N2501 Housing, remove the housing from the governor. Drill a 3.2 mm (.125") hole as shown in Illustration 3. Install the 5H1351 Pin so the top of the pin is 43.61 +/- .64 mm (1.717 +/- .025) away from the front of the rear housing. USTRATION 3 (SEE ILLUSTRATION) WARRANTY ALLOWANCES Caterpillar Dealer Suggested Customer Suggested Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (D/N) (Cost) (C/L) (Sell) 100% 1 0 0 0 0
Parts Disposition
Not applicable
Caterpillar Information System:
PRIORITY PARTS STOCK ACTION NEEDED INSTALLATION OF NEW OIL FILTER STUD; 3304 AND 3306 NATURAL GAS ENGINES - MAILED US AND CAN ADA, LIMITED CACO, COFA, CFEL, COSA PRIORITY PARTS STOCK ACTION NEEDED INSTALLATION OF NEW OIL FILTER STUD; 3304 AND 3306 NATURAL GAS ENGINES - MAILED US AND CAN ADA, LIMITED CACO, COFA, CFEL, COSA
PSP FOR OIL PUMP ROTOR ASSEMBLY FAILURES IN CERTAIN 3204 ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA PSP FOR OIL PUMP ROTOR ASSEMBLY FAILURES IN CERTAIN 3204 ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
PSP FOR FRONT TIMING GEAR FAILURES - 3208 TURBOCHARGED AFTERCOOLED MARINE ENGINES USED IN PLEASURE CRAFT APPLICATIONS - M AILED US AND CANADA, LIMITED CACO, COFA, CFEL, MARINE TEPS PSP FOR FRONT TIMING GEAR FAILURES - 3208 TURBOCHARGED AFTERCOOLED MARINE ENGINES USED IN PLEASURE CRAFT APPLICATIONS - M AILED US AND CANADA, LIMITED CACO, COFA, CFEL, MARINE TEPS
PSP FOR CRACKS IN 4N919 OIL PANS - 3406 AND 3406B TRUCK ENGINES - PS0258 - MAILED US, AMERICAS, CANADA, AUSTRALIA, AND TRU CK TEPS PSP FOR CRACKS IN 4N919 OIL PANS - 3406 AND 3406B TRUCK ENGINES - PS0258 - MAILED US, AMERICAS, CANADA, AUSTRALIA, AND TRU CK TEPS
PSP FOR FUEL TRANSFER PUMP VALVES; 3406B TRUCK,MARINE, INDUSTRIAL, GEN SET ENGINES; 16G MOTOR GRADERS; 245 EXCAVATORS & F RONT SHOVELS; 824C TRACTORS, 825C, 826C COMPACTORS; 980C LOADERS - PS4021 - MAILED US, CANADA, CFEL AND COSA PSP FOR FUEL TRANSFER PUMP VALVES; 3406B TRUCK,MARINE, INDUSTRIAL, GEN SET ENGINES; 16G MOTOR GRADERS; 245 EXCAVATORS & F RONT SHOVELS; 824C TRACTORS, 825C, 826C COMPACTORS; 980C LOADERS - PS4021 - MAILED US, CANADA, CFEL AND COSA
PSP FOR THE USE OF TWO CLAMPS TO HOLD THE BODY AND FUEL NOZZLE IN POSITION ON 3406, 3408 AND 3412 ENGINES - MAILED WORLDWIDE EXC EPT CANADA, BRAZIL & CACO PSP FOR THE USE OF TWO CLAMPS TO HOLD THE BODY AND FUEL NOZZLE IN POSITION ON 3406, 3408 AND 3412 ENGINES - MAILED WORLDWIDE EXC EPT CANADA, BRAZIL & CACO
INSPECT ALL 4W4599 BRACKETS IN PARTS STOCK - WORLDWIDE EXCEPT AUSTRALIA INSPECT ALL 4W4599 BRACKETS IN PARTS STOCK - WORLDWIDE EXCEPT AUSTRALIA
PSP FOR WATER PUMP SEAL FAILURES IN 3406 (92U) AND 3406B (7FB) TRUCK ENGINES - MAILED US AND CANADA, COFA PSP FOR WATER PUMP SEAL FAILURES IN 3406 (92U) AND 3406B (7FB) TRUCK ENGINES - MAILED US AND CANADA, COFA
REMOVE 7N5005 NOZZLE ASSEMBLIES WITH K3 DATE CODE FROM PARTS STOCK PI7154 REMOVE 7N5005 NOZZLE ASSEMBLIES WITH K3 DATE CODE FROM PARTS STOCK PI7154
SUPPORT INSTALL NEW 7W1035 FUEL INJECTOR ASSEMBLY FOR SMOKE REDUCTION AT LOWER RPM - 3500 SERIES MARINE AND GENERATOR SET ENG INES WITH 1301 TO 1600 FULL LOAD RPM - PS0254 - MAILED TO US, AMERICAS, AUSTRALIA AND CANADA ONLY SUPPORT INSTALL NEW 7W1035 FUEL INJECTOR ASSEMBLY FOR SMOKE REDUCTION AT LOWER RPM - 3500 SERIES MARINE AND GENERATOR SET ENG INES WITH 1301 TO 1600 FULL LOAD RPM - PS0254 - MAILED TO US, AMERICAS, AUSTRALIA AND CANADA ONLY
REMOVE CYLINDER LINERS FROM PARTS STOCKS 3304, 3306 ENGINES IN ALL APPLICATIONS - PI7144 - MAILED US, CANADA AND AMERICAS ONL Y REMOVE CYLINDER LINERS FROM PARTS STOCKS 3304, 3306 ENGINES IN ALL APPLICATIONS - PI7144 - MAILED US, CANADA AND AMERICAS ONL Y
PSP INSPECT 9G4234 BATTERIES FOR REVERSE POLARITY - PI7153 - MAILED WORLDWIDE EXCEPT BRAZIL AND COSA PSP INSPECT 9G4234 BATTERIES FOR REVERSE POLARITY - PI7153 - MAILED WORLDWIDE EXCEPT BRAZIL AND COSA
PSP FOR FUEL TRANSFER PUMP VALVES; 3406B TRUCK, MARINE, INDUSTRIAL, MARINE, GENERATOR SET ENGINES; 16G MOTOR GRADERS; 245 EXCAVATORS AND FRONT SHOVELS; 824C TRACTORS, 825C 826C COMPACTORS; 980C LOADERS - MAILED US AND CANADA, CFEL, COSA A, CFEL, COS PSP FOR FUEL TRANSFER PUMP VALVES; 3406B TRUCK, MARINE, INDUSTRIAL, MARINE, GENERATOR SET ENGINES; 16G MOTOR GRADERS; 245 EXCAVATORS AND FRONT SHOVELS; 824C TRACTORS, 825C 826C COMPACTORS; 980C LOADERS - MAILED US AND CANADA, CFEL, COSA A, CFEL, COS
SERVICE LETTER EXTENSION - REPLACE PISTON COOLING JETS AND INSPECT RECENTLY OVERHAULED ENGINES - 3406B, 3408, 3412 TRUCK, MAR INE, AND INDUSTRIAL ENGINES AND GENERATOR SETS; 637D TRACTORS - MAILED US, CACO, BRAZIL, CFEL, COSA, TEPS DEALERS SERVICE LETTER EXTENSION - REPLACE PISTON COOLING JETS AND INSPECT RECENTLY OVERHAULED ENGINES - 3406B, 3408, 3412 TRUCK, MAR INE, AND INDUSTRIAL ENGINES AND GENERATOR SETS; 637D TRACTORS - MAILED US, CACO, BRAZIL, CFEL, COSA, TEPS DEALERS
PARTS STOCK ACTION ONLY REMOVE CERTAIN 9F3099 AND 302266 MAGNETIC SWITCHES FROM PARTS STOCK - MAILED US AND CANADA, CAC O, COFA, CFEL, COSA PARTS STOCK ACTION ONLY REMOVE CERTAIN 9F3099 AND 302266 MAGNETIC SWITCHES FROM PARTS STOCK - MAILED US AND CANADA, CAC O, COFA, CFEL, COSA
SERVICE LETTER EXTENSION - INSTALL NEW 7W1035 FUEL INJECTOR ASSEMBLY FOR SMOKE REDUCTION AT LOWER RPM - 3500 SERIES MARINE AND GENERATOR SET ENGINES WITH WITH 1301 TO 1600 FULL LOAD RPM - MAILED US AND CANADA, CACO, COFA SERVICE LETTER EXTENSION - INSTALL NEW 7W1035 FUEL INJECTOR ASSEMBLY FOR SMOKE REDUCTION AT LOWER RPM - 3500 SERIES MARINE AND GENERATOR SET ENGINES WITH WITH 1301 TO 1600 FULL LOAD RPM - MAILED US AND CANADA, CACO, COFA
SERVICE LETTER EXTENSION FOR AUGUST 28, 1985 SL - PS0255 - PSP FOR INSTALLATION OF NEW LONGER VALVES IN 3304 AND 3306 NATURAL GAS ENGINES - MAILED COFA, CFEL, COSA SERVICE LETTER EXTENSION FOR AUGUST 28, 1985 SL - PS0255 - PSP FOR INSTALLATION OF NEW LONGER VALVES IN 3304 AND 3306 NATURAL GAS ENGINES - MAILED COFA, CFEL, COSA
PSP FOR INSTALLATION OF NEW LONGER VALVES IN 3304 AND 3306 NATURAL GAS ENGINES PSP FOR INSTALLATION OF NEW LONGER VALVES IN 3304 AND 3306 NATURAL GAS ENGINES
PRIORITY PARTS STOCK ACTION NEEDED UNDERSIZE PUSHROD CUP CAN CAUSE OVERHEATING OF PUSHROD AND ADJUSTING SCREW ON CERTAIN 350 0 SERIES ENGINES - MAILED US AND CANADA, LIMITED CACO, COFA CFEL, COSA PRIORITY PARTS STOCK ACTION NEEDED UNDERSIZE PUSHROD CUP CAN CAUSE OVERHEATING OF PUSHROD AND ADJUSTING SCREW ON CERTAIN 350 0 SERIES ENGINES - MAILED US AND CANADA, LIMITED CACO, COFA CFEL, COSA
E293-OR SHOCK MOUNTS ON SOME SR4 GENERATORS - MAILED US AND CANADA,COFA, CFEL, COSA, LIMITED CACO E293-OR SHOCK MOUNTS ON SOME SR4 GENERATORS - MAILED US AND CANADA,COFA, CFEL, COSA, LIMITED CACO
PSP FOR CYLINDER HEAD GASKET FAILURE ON SOME 3208 ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA, PSP FOR CYLINDER HEAD GASKET FAILURE ON SOME 3208 ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA,
PSP FOR OIL PUMP ROTOR ASSEMBLY FAILURES IN CERTAIN 3204 ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA - SER VICE LETTER SUPPLEMENT PSP FOR OIL PUMP ROTOR ASSEMBLY FAILURES IN CERTAIN 3204 ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA - SER VICE LETTER SUPPLEMENT
PSP FOR WATER PUMP SEAL FAILURES IN 3406B (92U) AND (7FB) TRUCK ENGINES - MAILED US AND CANADA, TRUCK TEPS PSP FOR WATER PUMP SEAL FAILURES IN 3406B (92U) AND (7FB) TRUCK ENGINES - MAILED US AND CANADA, TRUCK TEPS
PSP FOR FAILURE OF ELECTRIC SOLENOID TO SHUT DOWN ENGINE ON 3304B AND 3306B GENERATOR SET ENGINES EQUIPPED WITH NSFS AND WOO DWARD GOVERNOR - MAILED US AND CANADA, CACO, COFA, CFEL, COSA PSP FOR FAILURE OF ELECTRIC SOLENOID TO SHUT DOWN ENGINE ON 3304B AND 3306B GENERATOR SET ENGINES EQUIPPED WITH NSFS AND WOO DWARD GOVERNOR - MAILED US AND CANADA, CACO, COFA, CFEL, COSA