1999/02/22 Caterpillar

Correction To Service Brake Disc Information {4250,4255,7473}

Usage:

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

Reference: Service Manual Module, SENR6771-01, IT14G Integrated Toolcarrier and 914G Wheel Loader Braking System Specifications; "Service Brakes," Page 9.

The 109-5504 Brake and Planetary Group uses an alternate friction disc. The 110-8708 Friction Disc has been cancelled and has been replaced by the 128-9522 Friction Disc.

Illustration 1.
109-5504 Brake and Planetary Group.

The following information is correct for the 128-9522 Friction Disc:

Item (2):128-9522 Friction Disc

Thickness of new disc: 7.09 ± 0.08 mm (.279 ± .003 inch)

Minimum thickness of worn disc: 6.11 mm (.241 inch)

Minimum depth of oil grooves: 0.32 mm (.013 inch)

Caterpillar Information System:

1999/02/22 Engine Control Axle Protection Override {1902}

1999/02/22 Improved Hydraulic Accumulator Mounting Clips Available {5077}

1999/02/22 Improved Radiator Cores Now Available {1353}

1999/02/15 New Brake Disc Wear Specifications {4250}

1999/02/15 Air Conditioning And Heater System Updates Improve Operation And Reliability {7304,7309,7337,7343}

1999/02/15 Rework Procedure Available To Upgrade Differential Case Assembly {3258}

1999/02/15 New Weld Procedures On 994 Wheel Loader Buckets Increase Service Life {6101}

1999/02/15 100 cm Of 5P-1471 Hose Required For each 994 Wheel Loader Dust Ejector {1068}

1999/02/15 New Auxiliary Drive Coupling Group Improves Service Life {3252}

1999/02/15 Correction To Disassembly And Assembly Manual, RENR2116 {0374,1387}

1999/02/15 Correction To Operation & Maintenance Manual, SEBU6492-02 {0374,0375,7490}

1999/02/15 New Thrust Washer Improves Service Life Of Differential Group {3258}

1999/02/22 Shielded Metal Arc Welding And Flux Cored Arc Welding Information {0679}

1999/03/01 Washers Added To Avoid Bolt Interference On The D6G And D6G SR Hydraulic Pump{3108}

1999/03/01 Larger Capacity Power Train And Transmission Oil Filter{3005}

1999/03/01 Correction To Hydraulic System Oil Change Interval{5095}

1999/03/01 New Flywheel Housing Gasket For 3406 Machine Engines{1157}

1999/03/01 New Water Pumps With Improved Resistance To Shock Loads Used{1361}

1999/03/08 New Basic Fuel Transfer Pump Group Includes New Outer Lip Type Seal {1256}

1999/03/08 Instructions For Flashing ECMs On 657E Tractor Scrapers {7620,1901}

1999/03/08 Engine Hood Door Improved To Increase Service Life {7251,7263}

1999/03/08 New Muffler Reduces Cab Noise {1062}

1999/03/08 Use 147-1924 Portable Printer For Use On Wheel Loaders Equipped With The Payload Control System

1999/03/08 Correction To Testing And Adjusting Manual, RENR2148-01 {0374,1435,5700,5700}