1996/12/23 Caterpillar

New Temperature Sensors Used Which Prevent False Over Temperature Warnings{1906,1400}

Usage:

IT38 (6FN, 5DR) Integrated Toolcarrier;
814F (9DM),
Wheel Tractor;
815F (1GN),
Soil Compactor;
816F (5FN),
Landfill Compactor 938F (1KM, 2RM, 7SN, 8SM, 8YN),
950F Series II (4DJ, 5SK, 8TK),
960F (1YM, 4CL, 6XL, 9ZJ),
966F Series II (1SL, 8BG, 9YJ),
970F (7PL, 7SK, 9JK),
980G (2KR, 2SR, 9CM) Wheel Loaders;

SUPPLEMENT: SEPTEMBER 22, 1997

Service Magazine; December 23, 1996; Page 13, "New Temperature Sensors Used Which Prevent False Over Temperature Warning."

The following temperature sensor information for the models listed should b added to the service magazine article listed in the above reference.

--------------- END SUPPLEMENT ---------------

Reference: Service Manual Module, SENR6717-02, "Caterpillar Monitoring System".

Description of Change: New temperature sensors with improved accuracy are now available for use with the Caterpillar Monitoring System. The new sensors prevent false over temperature warnings.

Adaptable To: The new temperature sensors are direct replacements for the former sensors. These sensors monitor hydraulic oil temperature (980G), engine coolant temperature (all models listed) and torque converter oil temperature (980G). Chart A shows the correct replacement part numbers for the former temperature sensors. Chart B lists a partial list of effective serial numbers for the new temperature sensors.

Caterpillar Information System:

1996/12/23 Larger Washer Used With Tube Clamps On Hydrostatic Transmission Prevents Clamp From Loosening{3218}

1996/12/23 Externally Adjusted Relief Valve Used In Steering Control Valve Group{4307,4322}

1996/12/23 Cab Heater Efficiency Improved{7304}

1996/12/23 Grapple Rotator Motor Joint Strengthened{5082,6307}

1996/12/23 Rear Axle Oil Level Raised To Improve Axle Lubrication{3013}

1996/12/23 Service Procedures For Special Application Rollers And Idlers Summarized For Track-Type Troctors{4159,4180}

1996/12/23 Longer Bosses Increase Blade Assembly Service Life{5057,6060,6051,6071,7167}

1996/12/16 Improved Fuel Sender Assembly Available {7481}

1996/12/16 Cab Air Conditioner Group Improvements Eliminate Debris {7320}

1996/12/16 Longer Tie Rods For Control Valve Groups {5051,5124}

1996/12/16 Cab Improvements Reduce Vibration {7266}

1996/12/16 Spring Force Adjustment Allows Hydraulic Levers To Remain In Detent Position {5051}

1996/12/23 Ride Control Accumulator Recharging Procedure Changed{5081,5077}

1996/12/23 New Sight Gauge Replaces Former Dip Stick For Improved Visibility Of The Front Implement Hydraulic Tank Oil Level{7479}

1996/12/23 New Rotocoil Assembly Used In Engine Cylinder Head Groups{1109}

1996/12/30 Wiring Harness Routing Changed To Increase Wire Harness Service Life {1408}

1996/12/30 Improved Clapper Spring Available For Pilot Valve Groups {5059,5125,5126}

1996/12/30 Supplement To Service Manual Module; "Differential Lock-Relief Valve Pressure Check" {3264}

1996/12/30 Service Brake Adjustment Procedure Improves Application Pressure And Performance {4251,4269}

1996/12/30 Systems Operation Testing & Adjusting, 966F & 966F Series II Wheel Loader Air System And Brakes, Service Manual Module Available {0374,4250}

1996/12/30 New Hose Assemblies Are Compatible With The Extended Life Coolant (ELC) And Provide Increased Service Life {1380,1395}

1996/12/30 New Thumb Screw Improves The Ability To Secure The Air Filter Grate To The Cover Assembly {7301,7308,7251}

1996/12/30 Shaft Nut Torque Reduced To Prevent Actuator Valve Seizure {3200}

1996/12/30 Controlled Tightening Torque Eliminates Bolt Failure {3209,3215}