1999/05/03 Caterpillar

New Wiring Harness Assemblies Used On 3500B Machine Engines {1408}

Usage:

777D (3PR),
777D HAA (2YW),
785C (1HW),
785C HAA (5AZ),
789C (2BW),
793C (4AR, 4GZ) Off-Highway Trucks;
776D (5ER),
784C (2PZ) Off-Highway Tractors;
D11R (9TR, 9XR) Tractors;
992G (7HR),
994D (3TZ) Wheel Loaders;
5130B (4CS) Excavators

Description of Change: New wiring harness assemblies are used on the 3500B engines in these machines. These new wiring harness assemblies are made with preformed bends. Also, the heat shrink material is removed with 120 mm (4.7 in) of the connectors, and the braiding material is moved from 70 mm (2.8 in) to 110 mm (4.3 in) back of the connectors. These changes reduce stress on the wires and will result in longer service life for the wiring harness assemblies.

Adaptable To: The chart lists the new and former wiring harness assembly part numbers and their effectivity.

Caterpillar Information System:

1999/05/03 Improved Main Fuel Tank Available {1273}

1999/04/26 Available Rebuild Options For Flexxaire Fans{1356}

1999/04/26 Flexxaire Fan Interactive Product Guide CD Now Available{1356}

1999/04/26 Stronger Brush Springs Improve Actuator Service Life On Flexxaire Fans{1356}

1999/04/26 Serviceable Cover Group-Protection Available{5258,1408}

1999/04/26 New Pulse Width Modulated Steering Sensor Now Available{4800}

1999/04/26 New Oil Pump Group Used{1304}

1999/04/26 Correction To Special Instruction SEHS9737; "Rework Window Regulator On Operator Door"{7308}

1999/04/26 Proper Adjusting Of Body Down Or Up Switch{7258}

1999/04/26 Wheel Bearing Adjustment Procedure For 789 Cast Wheel And High Capacity Bearings{4051,4066,4208}

1999/04/26 New Wheel (Cast) And Required High Capacity Bearings Will Increase Service Life{4051,4066,4208}

1999/04/26 New Caterpillar Monitoring System (CMS) Control Groups Are Available{7490}

1999/05/03 Improved Cab Harness Accommodates Additional Relay {1408}

1999/05/03 144-0835 Pump Enhancements {1714}

1999/05/03 Serviceable Parts Available For Low Pressure Turbocharger In Low Altitude Engine Arrangement {1052}

1999/05/03 Weld Procedure For Field Repair Of Certain Large Off-Highway Truck Differential Housings {4050}

1999/05/03 New Engine Oil Filler Used {1316}

1999/05/03 Correction To Testing And Adjusting Manual RENR2115-01; Torque Converter Stall And Implement Pump Double Stall - Test {0374,3101,5055,7000}

1999/05/03 Correction To Engine Oil Change Interval {1348}

1999/05/03 Installation Procedure For The Fuel Injection Plate On The 914G/IT14G {1251}

1999/05/03 Fully Hydraulic Brake System Now Standard Production {4251}

1999/05/03 Corrections To Electrical System Schematics SENR6735, SENR6737, SENR5985, And SENR1229 {1400}

1999/05/03 Electroplated Axle Mounting Hardware Requires Changes In Torque Procedure And Specifications {3268}

1999/05/03 Improved Gas Springs Increase Service Life {7254}