1999/05/03 Caterpillar

Electroplated Axle Mounting Hardware Requires Changes In Torque Procedure And Specifications {3268}

Usage:

914G (7ZM, 9WM) Wheel Loader;
IT14G (1WN, 8ZM) Integrated Toolcarrier

Changes have been made to the front and rear axle mounting hardware to eliminate the use of the former phosphate and oil type bolts and washers. The latest bolts and washers are electroplated using zinc dichromate. The electroplated hardware is part of the 109-5500 Axle Mounting Group. See Illustration 1.

The electroplated hardware requires changes to the torque procedure and torque specifications. The torque procedure now uses the "Torque-Turn or Yield" method when tightening, which involves a Pre-Torque value and an additional Turn Angle value.

The electroplated hardware and torque values are specified in Chart 1.

Illustration 1.
The 109-5500 Axle Mounting Group.

(1) 7X-2475 Bolt.

(2) 7X-0515 Washer.

(3) 7X-2559 Bolt.

(4) 7X-2558 Bolt.

(5) 7X-2555 Bolt.

Caterpillar Information System:

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

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

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

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

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 New Engine Oil Filler Used {1316}

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

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

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

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

1999/05/03 New Wiring Harness Assemblies Used On 3500B Machine Engines {1408}

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

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

1999/05/03 Identification Of Minifuses, Minifuse Blocks, And Minifuse Locks For Operator Station Instrument Panel {7451,1417}

1999/05/03 Improved Rotor Hood Side Disk Pivot Now Available {6635,5608}

1999/05/03 New Mounting Arrangement Used For Pulse Width Modulated Steering Sensor {4800}

1999/05/03 Operation Of The Hydraulic Screed Counterbalance System {5051,5420}

1999/05/03 Revision To Special Instruction, SEHS9043, "Field Installation Of Valves For Scheduled Oil Sampling" Is Available {7542}

1999/05/10 Improved Throttle Lever Increases Service Life {1265}

1999/05/10 Additional Serviceable Parts Available For Front Axle {3020}

1999/05/10 Improved Idlers (D7R-D11R) and Improved Rollers (D9R, D11R) With Symmetrical Duo-Cone Seals Now Available {4159,4180}

1999/05/10 Corrections For Special Instruction REHS0082-01 And Special Instruction REHS0267 {3030,3124}

1999/05/10 Service Parts For Electric Drive Pump In Secondary Drive System {5703,4324,4354}

1999/05/10 Incorrect Service Interval Specified For Battery, Battery Cable And Disconnect Switch {1402,1401,1411,7528}