1996/10/14 Caterpillar

Guide Assemblies From Body Mounting Group Are No Longer Necessary On The Truck Rails To Reduce Stresses In The Frame {7258}

Usage:

771C (3BJ),
771D (6JR),
775B (7XJ),
775D (6KR) Quarry Trucks;
769C (01X),
769D (5TR),
773B (63W),
773D (7ER),
777B (4YC),
777C (4XJ),
777D (3PR) Trucks

The guide assemblies from the body mounting group are no longer necessary on the truck rails to reduce stresses in the frame.

This change is adaptable to all earlier machines ONLY IF stresses develop due to guide assemblies coming in contact with the body assembly.

NOTE: 771D and 775D Quarry Trucks, 769D, 773D and 777D Trucks are not equipped with the guide assemblies.

Typical view of location of the guide assemblies (1).

To remove guide assemblies from both sides of the rails, measure 25.4 mm (1.00 in) (A) from the bottom surface of the guide assemblies. Use welding torch at the 25.4 mm (1.00 in) (A) mark to cut out the top portion of the guide assemblies.

Caterpillar Information System:

1996/10/14 New Seals Available In Seal Kit For Steering Pump Groups And Hoist Pump Group To Improve Service Life {5073,5083,4306}

1996/10/14 Stronger Baffle Tube Assembly For Hydraulic And Transmission Tank {5056}

1996/10/14 New Splined Boom Foot Pins Used For Improved Lubrication {6504}

1996/10/14 Quieter Operating Check Valve Used In Tank Return Line {5067,5129}

1996/10/14 New Poppet Valve Group Used In Lines Relief Valve Groups To Prevent Excessive Implement Drift {5117}

1996/10/14 Improved Alternator Adjustment Strap And Retention Hardware Used To Maintain Belt Tension {1405}

1996/10/07 Parts Manuals May List Air Conditioning Compressors Incorrectly {1802,1809,7320}

1996/10/07 Effectivity Of Upgrades To Remanufactured Transmissions, Torque Converters And Wheel Assemblies {3001,4051}

1996/10/07 New Fuse Cap Available {1417}

1996/10/07 Special Instruction SEHS9983 Available For Installation And Adjustment Of Truck Body {7258}

1996/10/07 New Hoist Rotary Switch Assembly Used To Increase Reliability {1400}

1996/10/07 New Temperature Sensors Used To Monitor Oil Temperature In The Differential Housing {7601,3067}

1996/10/14 New Instrument Panel Lamps Used To Prevent Film Damage {7451}

1996/10/14 A New Hoist, Retarder, And Turn Signal Levers Now Used To Prevent Loosening {1430,3121}

1996/10/14 Brake Actuator Spring Now Serviced {4262}

1996/10/14 New Front Suspension Arms Now Used To Increase Service Life {7200}

1996/10/14 Improved O-Ring Seal On Turbocharger Drain Tubes {1052}

1996/10/14 Alternator Circuit Breaker May Cause Loss Of Joystick Operated Functions {1420}

1996/10/14 Improved Mounting For Transmission Oil Filler Tube Prevents Tube Cracking {3014}

1996/10/14 Make Sure Brake Hose Is Clear Of Engine Oil Pan {4257}

1996/10/14 Changes Made To CETOP 3 Control Valve {5000}

1996/10/14 Be Sure To Remove Clip From Inside Coupling Assembly When Replacing Hydraulic Pump {5062,1017}

1996/10/14 Improved Lubrication Of Attachment Coupler Bushing {5133}

1996/10/14 Avoid Damage To Boom And Attachment Control Joystick {5700}