PSP FOR CAMSHAFT FAILURES - 3406B TRUCK ENGINES - MAILED US AND CANADA, TRUCK TEPS
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PSP FOR CAMSHAFT FAILURES - 3406B TRUCK ENGINES - MAILED US AND CANADA, TRUCK TEPS
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 CAMSHAFT FAILURES; 3406B TRUCK ENGINES, 1210, PS0309 U-58 TT-4 NOTE: This Program can only be administered after a failure occurs. When reporting the repair, use "PS0309" as Part Number and "7755" as Group Number.
Termination Date
April 30, 1988
Problem
The 7W3797 Camshaft Assemblies used in some of the Affected Product may not provide acceptable service life. The valve train camshaft may break at the seat of the cam gear.
Affected Product
Model Identification Number 3406B Truck Engine 7FB1 - 72555
Parts Needed
1 - 7W3797 Camshaft Assembly Any parts damaged as a result of the camshaft failure.
Action Required
If there is a failure of a valve train camshaft, inspect the following components and replace as necessary. 1. Replace the broken camshaft and gear assembly using a new 7W3797 Camshaft Assembly. 2. Inspect the front camshaft bushing for damage. 3. Inspect for edge loading or pitting of the timing (idler) gear, timing advance gear or accessory drive (idler) gear. 4. Inspect for loose idler gear stub shaft bolts/nuts. 5. Check for broken valve train components such as rotocoils, rocker arms, bridges, bridge dowels, shafts, stands, valve guides, valve seats. 6. Check for loose pins/wire in the lifter assemblies. 7. Inspect for bent push rods and valves. Note: Replace the lifter assembly if either the valves or push rods have been bent because of the valve train components coming in contact with the pistons. This will eliminate any possibility that the lifter assembly may have a loose pin. 8. Check the pistons for damage. See the Guideline For Reusable Parts, Form SEBF8049, Page 13, to determine piston reusability. WARRANTY ALLOWANCES Caterpillar Dealer Suggested Customer Suggested Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (D/N) (Cost) (C/L) (Sell) 100% See Note 0 0 0 0 If OEM, parts are at C/L and labor at the sell rate. NOTE: Labor will be allowed in accordance with the Time Requirement Guide times for the job operations required to correct the defect and consequential damage.
Parts Disposition
Return only the portion of the camshaft which includes the cam gear along with a copy of the claim form to: Caterpillar Inc. Attn: C. M. Berger Warehouse #4, Docks 5 thru 9 8201 N. University Peoria, Il 61615 Handle all other parts in accordance with your Warranty Bulletin on warranty parts handling.
Caterpillar Information System:
SERVICE LETTER SUPPLEMENT FOR MARCH 3, 1987 SL - PS0273 - PSP FOR SHUTOFF SOLENOID FAILURES ON CERTAIN 3306B AND 3406B TRUCK AND INDUSTRIAL ENGINES - MAILED US AND CANADA, COFA, COSA, TRUCK TEPS SERVICE LETTER SUPPLEMENT FOR MARCH 3, 1987 SL - PS0273 - PSP FOR SHUTOFF SOLENOID FAILURES ON CERTAIN 3306B AND 3406B TRUCK AND INDUSTRIAL ENGINES - MAILED US AND CANADA, COFA, COSA, TRUCK TEPS
SAFETY - MODIFICATION NEEDED FOR FUEL LINES FOR PRESSURE AND FUEL FILTER DIFFERENTIAL PRESSURE GAUGES ON CERTAIN 3500 FAM ILY ENGINES - PI1075 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA SAFETY - MODIFICATION NEEDED FOR FUEL LINES FOR PRESSURE AND FUEL FILTER DIFFERENTIAL PRESSURE GAUGES ON CERTAIN 3500 FAM ILY ENGINES - PI1075 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
PSP FOR RESETTING THE PROGRAMABLE CUSTOMER SPECIFIED PARAMETERS ON 3406B PEEC TRUCK ENGINES - MAILED US AND CANADA, TRU CK TEPS - REVISED 09/88 PSP FOR RESETTING THE PROGRAMABLE CUSTOMER SPECIFIED PARAMETERS ON 3406B PEEC TRUCK ENGINES - MAILED US AND CANADA, TRU CK TEPS - REVISED 09/88
REPLACEMENT SERIAL - PRODUCT IDENTIFICATION NUMBER PLATES FOR EARTHMOVING EQUIPMENT - MAILED US REPLACEMENT SERIAL - PRODUCT IDENTIFICATION NUMBER PLATES FOR EARTHMOVING EQUIPMENT - MAILED US
PSP FOR SHUTOFF SOLENOID FAILURES ON CERTAIN 3306B, 3406B TRUCKAND INDUSTRIAL ENGINES - MAILED US AND CANADA, COFA, COSA, TR UCK TEPS PSP FOR SHUTOFF SOLENOID FAILURES ON CERTAIN 3306B, 3406B TRUCKAND INDUSTRIAL ENGINES - MAILED US AND CANADA, COFA, COSA, TR UCK TEPS
SERVICE LETTER EXTENSION FOR DECEMBER 5, 1985 SL - PS4036 - PSP FOR FRONT TIMING GEAR FAILURES - 3208 TURBOCHARGED AFT ERCOOLED MARINE ENGINES USED IN PLEASURE CRAFT APPLICATIONS - PS4036 - MAILED US AND CANADA, CFEL, MARINE TEPS, LIMITED CACO SERVICE LETTER EXTENSION FOR DECEMBER 5, 1985 SL - PS4036 - PSP FOR FRONT TIMING GEAR FAILURES - 3208 TURBOCHARGED AFT ERCOOLED MARINE ENGINES USED IN PLEASURE CRAFT APPLICATIONS - PS4036 - MAILED US AND CANADA, CFEL, MARINE TEPS, LIMITED CACO
SERVICE LETTER EXTENSION FOR AUGUST 28, 1985 (REVISED JUNE 1986) SL - PS0255 - PSP FOR INSTALLATION OF NEW LONGER VALVES IN 3304 AND 3306 NATURAL GAS ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA SERVICE LETTER EXTENSION FOR AUGUST 28, 1985 (REVISED JUNE 1986) SL - PS0255 - PSP FOR INSTALLATION OF NEW LONGER VALVES IN 3304 AND 3306 NATURAL GAS ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
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 US AND CANADA, CACO, COFA - SERVICE LETTER EXTENSION 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 US AND CANADA, CACO, COFA - SERVICE LETTER EXTENSION
PSP FOR COMPLAINTS OF EXCESSIVE SMOKE FROM CERTAIN 3500 SERIES HIGH SPEED ENGINES - MAILED US AND CANADA, CACO, LIMITED COFA, LIM TED CFEL, LIMITED COSA PSP FOR COMPLAINTS OF EXCESSIVE SMOKE FROM CERTAIN 3500 SERIES HIGH SPEED ENGINES - MAILED US AND CANADA, CACO, LIMITED COFA, LIM TED CFEL, LIMITED COSA
PARTS STOCK ACTION ONLY - INSPECT ALL 2N2384 AND 2N2385 FUEL SHUTOFF SOLENOIDS IN PARTS STOCK - MAILED US WORLDWIDE EXCEPT BRA ZIL PARTS STOCK ACTION ONLY - INSPECT ALL 2N2384 AND 2N2385 FUEL SHUTOFF SOLENOIDS IN PARTS STOCK - MAILED US WORLDWIDE EXCEPT BRA ZIL
SERVICE LETTER SUPPLEMENT FOR SEPTEBMER 21, 1986 SL - PS4082 - PSP FOR FAILURE OF ELECTRIC SOLENOID TO SHUT DOWN ENGINE ON 330 4B AND 3306B GENERATOR SET ENGINES EQUIPPED WITH NSFS AND WOODWARD GOVERNOR - MAILED US AND CANADA, CACO, COFA, CFEL, COSA SERVICE LETTER SUPPLEMENT FOR SEPTEBMER 21, 1986 SL - PS4082 - PSP FOR FAILURE OF ELECTRIC SOLENOID TO SHUT DOWN ENGINE ON 330 4B AND 3306B GENERATOR SET ENGINES EQUIPPED WITH NSFS AND WOODWARD GOVERNOR - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
PARTS STOCK ACTION ONLY - REMOVE CERTAIN 2S7264 FUEL INJECTION PUMP ASSEMBLIES FROM PARTS STOCK - MAILED WORLDWIDE EXCEPT BRA ZIL PARTS STOCK ACTION ONLY - REMOVE CERTAIN 2S7264 FUEL INJECTION PUMP ASSEMBLIES FROM PARTS STOCK - MAILED WORLDWIDE EXCEPT BRA ZIL
SERVICE LETTER SUPPLEMENT FOR MARCH 31, 1984 SL - PI1075 - SAFETY - MODIFICATION NEEDED FOR FUEL LINES FOR PRESSURE AND FUE L FILTER DIFFERENTIAL PRESSURE GAUGES ON CERTAIN 3500 FAMILY ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA SERVICE LETTER SUPPLEMENT FOR MARCH 31, 1984 SL - PI1075 - SAFETY - MODIFICATION NEEDED FOR FUEL LINES FOR PRESSURE AND FUE L FILTER DIFFERENTIAL PRESSURE GAUGES ON CERTAIN 3500 FAMILY ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
SERVICE LETTER SUPPLEMENT FOR APRIL 2, 1986 SL - PS4021 - PSP FOR FUEL TRANSFER PUMP VALVES; 3406B TRUCK, MARINE, INDUSTRIAL, GE NERATOR SET ENGINES; 16G MOTOR GRADER; 245 EXCAVATOR, FRONT SHOVELS; 824C TRACTOR, 825C, 826C COMPACTORS; 980C LOADERS - SERVICE LETTER SUPPLEMENT FOR APRIL 2, 1986 SL - PS4021 - PSP FOR FUEL TRANSFER PUMP VALVES; 3406B TRUCK, MARINE, INDUSTRIAL, GE NERATOR SET ENGINES; 16G MOTOR GRADER; 245 EXCAVATOR, FRONT SHOVELS; 824C TRACTOR, 825C, 826C COMPACTORS; 980C LOADERS -
COMPLAINTS OF EXCESSIVE OIL CONSUMPTION ON 3208 NATURALLY ASPIRATED (NA) ENGINES - MAILED WORLDWIDE EXCEPT BRAZIL COMPLAINTS OF EXCESSIVE OIL CONSUMPTION ON 3208 NATURALLY ASPIRATED (NA) ENGINES - MAILED WORLDWIDE EXCEPT BRAZIL
PSP FOR OIL PUMP ROTOR ASSEMBLY FAILURES IN CERTAIN 3204 ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA - SER VICE LETTER EXTENSION PSP FOR OIL PUMP ROTOR ASSEMBLY FAILURES IN CERTAIN 3204 ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA - SER VICE LETTER EXTENSION
SERVICE LETTER EXTENSION - AUGUST 5, 1986 - PS0276; PSP FOR CYLINDER HEAD GASKET FAILURES ON SOME 3208 ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA, TRUCK, MARINE & AGRICULTURE TEPS SERVICE LETTER EXTENSION - AUGUST 5, 1986 - PS0276; PSP FOR CYLINDER HEAD GASKET FAILURES ON SOME 3208 ENGINES - MAILED US AND CANADA, CACO, COFA, CFEL, COSA, TRUCK, MARINE & AGRICULTURE TEPS
PRIORITY - OIL PUMP BOLT NEEDS TO BE RETIGHTENED ON CERTAIN 215B AND 225B EXCAVATORS; 936, 950B AND 966D LOADERS; 3304 AND 330 6 GENERATOR SET ENGINES - MAILED US, CANADA, COSA PRIORITY - OIL PUMP BOLT NEEDS TO BE RETIGHTENED ON CERTAIN 215B AND 225B EXCAVATORS; 936, 950B AND 966D LOADERS; 3304 AND 330 6 GENERATOR SET ENGINES - MAILED US, CANADA, COSA
PSP FOR WATER PUMP SEAL FAILURES IN 3406...92U, 3406B...7FB TRUCK ENGINES - MAILED US AND CANADA, COSA, TRUCK TEPS PSP FOR WATER PUMP SEAL FAILURES IN 3406...92U, 3406B...7FB TRUCK ENGINES - MAILED US AND CANADA, COSA, TRUCK TEPS
SERVICE LETTER SUPPLEMENT FOR AUGUST 18, 1987 SL - PS0322 - PSP FOR WATER PUMP SEAL FAILURES IN 3406...92U, 3406B...7FB TRU CK ENGINES - MAILED US AND CANADA, COSA, TRUCK TEPS SERVICE LETTER SUPPLEMENT FOR AUGUST 18, 1987 SL - PS0322 - PSP FOR WATER PUMP SEAL FAILURES IN 3406...92U, 3406B...7FB TRU CK ENGINES - MAILED US AND CANADA, COSA, TRUCK TEPS
SERVICE LETTER EXTENSION FOR MARCH 30, 1989 SL - PS5991 - PSP FOR RESETTING THE PROGRAMMABLE CUSTOMER SPECIFIED PARAMETERS ON 3406B PEEC TRUCK ENGINES - MAILED US AND CANADA, TRUCK TEPS SERVICE LETTER EXTENSION FOR MARCH 30, 1989 SL - PS5991 - PSP FOR RESETTING THE PROGRAMMABLE CUSTOMER SPECIFIED PARAMETERS ON 3406B PEEC TRUCK ENGINES - MAILED US AND CANADA, TRUCK TEPS
PSP FOR TURBOCHARGER SURGE AND HIGH EXHAUST TEMPERATURE PROBLEMS ON CERTAIN 3508 GENERATOR SET ENGINES - MAILED US AND CAN ADA, CACO, COFA, LIMITED COSA - REVISED 1/89 PSP FOR TURBOCHARGER SURGE AND HIGH EXHAUST TEMPERATURE PROBLEMS ON CERTAIN 3508 GENERATOR SET ENGINES - MAILED US AND CAN ADA, CACO, COFA, LIMITED COSA - REVISED 1/89
CRANKSHAFT DAMPER BOLTS NEED TO BE RETIGHTENED ON CERTAIN D10N TRACTORS, 992C LOADERS, 773B TRUCKS, 3408, 3412 MARINE ENGINES - M AILED WORLDWIDE EXCEPT BRAZIL. CRANKSHAFT DAMPER BOLTS NEED TO BE RETIGHTENED ON CERTAIN D10N TRACTORS, 992C LOADERS, 773B TRUCKS, 3408, 3412 MARINE ENGINES - M AILED WORLDWIDE EXCEPT BRAZIL.
THROTTLE POSITION SENSOR NEEDS TO BE CHECKED ON CERTAIN 3406B PEEC ENGINES - MAILED US, CANADA, TRUCK TEPS THROTTLE POSITION SENSOR NEEDS TO BE CHECKED ON CERTAIN 3406B PEEC ENGINES - MAILED US, CANADA, TRUCK TEPS