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 The 110-8708 Friction Disc has been cancelled and has been replaced by the 128-9522 Friction Disc.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 PS-360B Tires {4203}
1999/02/22 3116 Engine Oil Capacity {1326}
1999/02/22 New Scraper Available For Asphalt Compactors {6607}
1999/02/22 Vibratory Relief Pressure Increased To Shorten Vibratory Start And Stop Times {5652}
1999/02/22 Use Special Care With 143-3629 O-Ring Seals {1071}
1999/02/22 Production Process Change Eliminates Anti-Rotation Retaining Pin In Rear Wheel Station For Certain Off-Highway Trucks {4208,4234}
1999/02/22 Improved Steering Spherical Race Bearing Available {4303,4300}
1999/02/22 Supplement To Correct Torque Specifications On Differential And Bevel Gear {3258,3270,3281,3283,3284}
1999/02/15 New Actuator Motors Available for Power Screed Options {6640}
1999/02/15 Emulsion System Changes {5615}
1999/02/15 Purging Lines Have Been Added To Conveyor Lines Group {5264,5643,6631}
1999/02/15 Filters On X-Series Machines {1054,1308,1261,5068}
1999/02/22 New Improved Tow Point Roller Design Now Being Used {6600}
1999/02/22 New Radiator And Oil Cooler Mounting Configuration {1350}
1999/02/22 Shielded Metal Arc Welding And Flux Cored Arc Welding Information {0679}
1999/03/01 Stronger Floatpin Design Available{5102,7120}
1999/03/01 Fan Pulley/Adapter Changes Summarized{1356,1384,1359}
1999/03/01 Special Instruction, REHS0103-01, Available For Procedure For Dynamometer Test For Power Take-Off{3107}
1999/03/01 Supplement To Correct Manual Modulation Pedal Adjustment{3059,3071}
1999/03/01 Improved Brake Switch Now Used{4262,1408}
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}
1999/03/01 New Tie-Down Available For Asphalt Paver{6600,6100,6300}
1999/03/08 Software Improvements {7620}
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