PRODUCT SUPPORT PROGRAM FOR REPLACING THE ENGINE OIL PRESSURE SWITCH ON CERTAIN 525B AND 535B WHEEL SKIDDERS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE ENGINE OIL PRESSURE SWITCH ON CERTAIN 525B AND 535B WHEEL SKIDDERS

Usage:

SEBE8185-01

October 13, 2002
(Revised July 2003)
U-275
A-188
AU-203
S-202
H-200
O-223

Show/hide table

*After failure only*	PRODUCT SUPPORT PROGRAM FOR REPLACING THE ENGINE OIL PRESSURE SWITCH ON CERTAIN 525B AND 535B WHEEL SKIDDERS
1408		PS50557

NOTE: This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS50557" as the Part number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

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.

NOTE: This Revised Service Letter replaces the October 13, 2002 Service Letter. Changes have been made to the Termination Date, Problem, and Rework Procedure.

TERMINATION DATE

July 31, 2004

PROBLEM

The engine oil pressure switch needs to be replaced on certain 525B and 535B Wheel Skidders. The 3E7692 Oil Pressure Switch may give false low oil pressure indications to the Caterpillar Monitoring System warning system. The de-actuation pressure for this switch may be above the lowest acceptable engine oil pressure that may occur during normal operation. A new switch is available that better matches the expected oil pressure of the engine.

A number of quality improvements have been made to the 3E7690 Oil Pressure Switch. The new 3E7690 will have a higher service life.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
525B	3KZ225-325, 400-835
535B	AAE401-462, 500-571

PARTS NEEDED

1 - 3E7690 Switch Assembly - Pressure
1 - 3J1907 Seal - O-Ring

ACTION REQUIRED

See the attached Rework Procedure.

SERVICE CLAIM ALLOWANCES

Show/hide table

Product smu/age whichever comes first	Caterpillar		Dealer Suggested		Customer Suggested
Product smu/age whichever comes first	Parts	Labor Hrs	Parts	Labor Hrs	Parts	Labor Hrs
0-4000 / 0-24 months	100%	1	0	0	0	0
4001-6000 / 25-36 months	33 1/3%	0.5	0	0	50%	0.5
NOTE: This is a 1?hour job.

PARTS DISPOSITION

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

Attach. (1-Rework Procedure)

Rework Procedure

Refer to RENR3611, Disassembly and Assembly, 3114 - 3116 and 3126 Engines for Caterpillar Built Machines, Engine Oil Pressure Sensor - Remove and Install, for 525B and 535B Wheel Skidders.

Illustration 1 - Left Side View

The switch is located on the L.H. side of the machine and L.H. side of the engine, threaded directly into the side of the engine, near the engine oil sampling port fitting. The switch can be accessed through the service panel on the L.H. side of the machine.

Illustration 2 - Switch Location on LH side of engine

Remove the current 3E7692 or 3E7690 Switch and replace with new 3E7690 Switch, using a new 3J1907 O-ring Seal.

NOTE: Ensure the new 3E7690 Switch that is being installed has a date code of at least H03R.

Tighten the switch to 35 ± 3 N.m (26 +/- 2 lb.-ft). Do not over tighten this switch.

Caterpillar Information System:

PRODUCT SUPPORT PROGRAM FOR RELOCATING A CHECK VALVE IN THE AXLE OIL COOLING SYSTEM ON CERTAIN 988G WHEEL LOADERS AND 834G WHEEL DOZERS PRODUCT SUPPORT PROGRAM FOR RELOCATING A CHECK VALVE IN THE AXLE OIL COOLING SYSTEM ON CERTAIN 988G WHEEL LOADERS AND 834G WHEEL DOZERS

PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING A REMOTE MOUNTED ENGINE OIL FILTER ON CERTAIN 973C TRACK TYPE LOADERS PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING A REMOTE MOUNTED ENGINE OIL FILTER ON CERTAIN 973C TRACK TYPE LOADERS

PRODUCT SUPPORT PROGRAM FOR REPLACING DRIVE TRAIN HOSES ON CERTAIN D8R SERIES II TRACK-TYPE TRACTORS PRODUCT SUPPORT PROGRAM FOR REPLACING DRIVE TRAIN HOSES ON CERTAIN D8R SERIES II TRACK-TYPE TRACTORS

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE ROPS/FOPS CERTIFICATION PLATE ON CERTAIN D3G, D4G AND D5G TRACK TYPE TRACTORS PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE ROPS/FOPS CERTIFICATION PLATE ON CERTAIN D3G, D4G AND D5G TRACK TYPE TRACTORS

PRODUCT SUPPORT PROGRAM FOR INSPECTING AND/OR REPLACING THE VALVE SPRINGS THAT MAY BREAK ON CERTAIN D5M AND D6M TRACK TYPE TRACTORS PRODUCT SUPPORT PROGRAM FOR INSPECTING AND/OR REPLACING THE VALVE SPRINGS THAT MAY BREAK ON CERTAIN D5M AND D6M TRACK TYPE TRACTORS

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE DRIVE PUMPS ON CERTAIN 973C TRACK TYPE LOADERS PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE DRIVE PUMPS ON CERTAIN 973C TRACK TYPE LOADERS

PRODUCT SUPPORT PROGRAM FOR REPLACING THE ELECTROHYDRAULIC CONTROLS THAT MAY BIND ON CERTAIN 950G, 962G, 966G, 972G AND 980G WHEEL LOADERS PRODUCT SUPPORT PROGRAM FOR REPLACING THE ELECTROHYDRAULIC CONTROLS THAT MAY BIND ON CERTAIN 950G, 962G, 966G, 972G AND 980G WHEEL LOADERS

PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING A GROUND WIRE BETWEEN THE STARTER MOTOR AND ENGINE BLOCK ON CERTAIN 980G SERIES II WHEEL LOADERS PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING A GROUND WIRE BETWEEN THE STARTER MOTOR AND ENGINE BLOCK ON CERTAIN 980G SERIES II WHEEL LOADERS

PRODUCT IMPROVEMENT PROGRAM FOR MODIFYING THE HYDRAULIC PUMP SIGNAL HOSE ON CERTAIN D7R SERIES II TRACK-TYPE TRACTORS PRODUCT IMPROVEMENT PROGRAM FOR MODIFYING THE HYDRAULIC PUMP SIGNAL HOSE ON CERTAIN D7R SERIES II TRACK-TYPE TRACTORS

PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING A BUCKET INSTALLATION KIT ON BUCKETS USED ON CERTAIN 902, 906 AND 908 COMPACT WHEEL LOADERS PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING A BUCKET INSTALLATION KIT ON BUCKETS USED ON CERTAIN 902, 906 AND 908 COMPACT WHEEL LOADERS

PRODUCT SUPPORT PROGRAM FOR REPLACING THE LIFT CYLINDER POSITION SENSOR(S) ON CERTAIN D11R CARRYDOZER TRACTORS PRODUCT SUPPORT PROGRAM FOR REPLACING THE LIFT CYLINDER POSITION SENSOR(S) ON CERTAIN D11R CARRYDOZER TRACTORS

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING FAILED 1746625 IMPLEMENT PUMP ON CERTAIN 988G WHEEL LOADERS PRODUCT IMPROVEMENT PROGRAM FOR REPLACING FAILED 1746625 IMPLEMENT PUMP ON CERTAIN 988G WHEEL LOADERS

PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND REMOVING DEFECTIVE 9Y7662 AIR FILTER ELEMENTS FROM DEALER STOCK PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND REMOVING DEFECTIVE 9Y7662 AIR FILTER ELEMENTS FROM DEALER STOCK

PRODUCT SUPPORT PROGRAM FOR REINFORCING THE STEERING CYLINDER MOUNT AREA ON THE REAR FRAME ON CERTAIN 994 AND 994D WHEEL LOADERS PRODUCT SUPPORT PROGRAM FOR REINFORCING THE STEERING CYLINDER MOUNT AREA ON THE REAR FRAME ON CERTAIN 994 AND 994D WHEEL LOADERS

PRODUCT IMPROVEMENT PROGRAM TO CHECK FOR PROPER TORQUE OF THE ELECTRIC STARTER MOTOR NUTS ON CERTAIN D7R SERIES II TRACK-TYPE TRACTORS PRODUCT IMPROVEMENT PROGRAM TO CHECK FOR PROPER TORQUE OF THE ELECTRIC STARTER MOTOR NUTS ON CERTAIN D7R SERIES II TRACK-TYPE TRACTORS

PRODUCT IMPROVEMENT PROGRAM FOR RESETTING THE VALVE LASH ON CERTAIN 3126, 3126B, 3126E, AND C-9 ENGINES USED IN TRUCK, COMMERCIAL, AND MACHINE APPLICATIONS PRODUCT IMPROVEMENT PROGRAM FOR RESETTING THE VALVE LASH ON CERTAIN 3126, 3126B, 3126E, AND C-9 ENGINES USED IN TRUCK, COMMERCIAL, AND MACHINE APPLICATIONS

PRODUCT SUPPORT PROGRAM FOR ADDING STOPS TO THE BLADE TO PREVENT ANGLE CYLINDER FAILURES ON CERTAIN D6M TRACTORS PRODUCT SUPPORT PROGRAM FOR ADDING STOPS TO THE BLADE TO PREVENT ANGLE CYLINDER FAILURES ON CERTAIN D6M TRACTORS

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE MODULAR HANDLE GROUP ON CERTAIN IT14G, IT28G, 914G, 924G, AND 928G SMALL WHEEL LOADERS PRODUCT IMPROVEMENT PROGRAM FOR REPLACING THE MODULAR HANDLE GROUP ON CERTAIN IT14G, IT28G, 914G, 924G, AND 928G SMALL WHEEL LOADERS

PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN 3E6332 ETHER VALVES FROM DEALER STOCK PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN 3E6332 ETHER VALVES FROM DEALER STOCK

PRODUCT SUPPORT PROGRAM FOR REPLACING THE RADIATOR THAT LEAKS ON CERTAIN 525B AND 535B SKIDDERS PRODUCT SUPPORT PROGRAM FOR REPLACING THE RADIATOR THAT LEAKS ON CERTAIN 525B AND 535B SKIDDERS

PRODUCT IMPROVEMENT PROGRAM FOR RESETTING THE TRANSMISSION CLUTCH ENGAGEMENT PRESSURES ON CERTAIN 824G II WHEEL DOZERS, 825G II SOIL COMPACTORS AND 826G II LF COMPACTORS PRODUCT IMPROVEMENT PROGRAM FOR RESETTING THE TRANSMISSION CLUTCH ENGAGEMENT PRESSURES ON CERTAIN 824G II WHEEL DOZERS, 825G II SOIL COMPACTORS AND 826G II LF COMPACTORS

PRODUCT SUPPORT PROGRAM FOR REPLACING THE IMPLEMENT PUMP ON CERTAIN 988G WHEEL LOADERS PRODUCT SUPPORT PROGRAM FOR REPLACING THE IMPLEMENT PUMP ON CERTAIN 988G WHEEL LOADERS

PRODUCT IMPROVEMENT PROGRAM FOR CHANGING THE SOLENOID VALVES AND POWERTRAIN SOFTWARE IN THE TORQUE CONVERTER MODULATING VALVES ON CERTAIN 994 AND 994D WHEEL LOADERS PRODUCT IMPROVEMENT PROGRAM FOR CHANGING THE SOLENOID VALVES AND POWERTRAIN SOFTWARE IN THE TORQUE CONVERTER MODULATING VALVES ON CERTAIN 994 AND 994D WHEEL LOADERS

PRODUCT SUPPORT PROGRAM FOR RETORQUING BOLTS ON CERTAIN 3126, 3126B, C-9 TRUCK ENGINES, 325C, 325C L, 330C, 330C L MEDIUM EXCAVATORS, 12H MOTOR GRADERS, AND 637G SCRAPERS PRODUCT SUPPORT PROGRAM FOR RETORQUING BOLTS ON CERTAIN 3126, 3126B, C-9 TRUCK ENGINES, 325C, 325C L, 330C, 330C L MEDIUM EXCAVATORS, 12H MOTOR GRADERS, AND 637G SCRAPERS