1997/10/20 Caterpillar


Correct Retaining Ring Specified For Shaft Seal In Piston Motor Group For Fan Drive{5058}

Usage:


824G (4SN) Wheel Tractors;
825G (6RN) Soil Compactors;
826G (7LN) Landfill Compactors;
980G (9CM, 2KR, 2SR) Wheel Loaders

The 4M-9480 Ring-Retainer, specified for the shaft seal in 128-0038 and 129-2413 Piston Motor Groups, is incorrect.

128-0038 and 129-2413 Piston Motor Groups for fan drive have always used 135-2037 Ring-Retaining (1).

128-0038 and 129-2413 Piston Motor Groups were effective with the following machines:

824G (4SN317) Wheel Tractors;
825G (6RN259) Soil Compactors;
826G (7LN146) Landfill Compactors;
980G (9CM1, 2KR1, 2SR1) Wheel Loaders

NOTE: Some service publications may call for a washer between the shaft seal and thrust bearing. If a washer is used, the shaft seal and retaining ring cannot be assembled correctly.


128-0038 and 129-2413 Piston Motor Groups
(1) 135-2037 Ring-Retaining.

Caterpillar Information System:

1997/10/20 New Off-Highway Truck Electronic Control Group (EPTC II) Used{7601,7490,7463}
1997/10/20 New Hose Assembly In Oil Cooler Lines Group Prevents Rubbing{1365,4268,7554}
1997/10/20 New Body Assembly Used In Off-Highway Truck Air Cleaner Group To Improve Air Flow To Pre-Cleaners{1051,1055}
1997/10/20 Special Instruction, REHS0078, "Retrofit Procedure For Air Operated Exhaust Diverter" Is Available{0374,1061}
1997/10/20 New Hold Back Latch Available{7310}
1997/10/20 Improved Rust Protection On Cab Doors{7308}
1997/10/20 Tandem Oil Level Verification{4064}
1997/10/20 New Battery Box Covers Now Used To Improve Access To The Batteries{2553,7250,7257}
1997/10/20 Radial Seal Air Filters Adaptable To Earlier Machines{1054,1051}
1997/10/13 Robust Signal Lamps Now Available For 24V Machines{1429}
1997/10/13 Follow Guidelines When Cleaning And Storing Friction Discs To Improve Service Life{3187}
1997/10/13 New Sheet Metal Rework Procedure Improves Durability Of The Air Filter Mounting Assembly{7342}
1997/10/20 Service Repair Procedure For Engine Cowls{7263,7251}
1997/10/20 Improved Sealing On Caterpillar Monitoring System And VIMS Modules Provides Resistance To Lens Fogging{7490,7601}
1997/10/20 Service Interval Change For Extended Life Coolant Extender And Extended Life Coolant{1395,7543,7545}
1997/10/27 Improved Steering Column Boot Resists Cracking{4338,7300}
1997/10/27 Stronger Sun Visor Guides Available {7300,7340}
1997/10/27 All "H" Series Motor Graders (Except 24H) Are Now Equipped With 2 Cylinder Air Compressors{1803}
1997/10/27 Reliability Of Transmission Fluid Level Reading Improved With Addition Of Baffle Plate{3081,3080}
1997/10/27 Improved Duo-Cone Seal Group Increases Service Life{4201,4050}
1997/10/27 New Custom Product Support Literature Is Available For 773D And 775D Trucks Equipped With Wiggins Service Center{0374}
1997/10/27 New Custom Product Support Literature Is Available For 777B Trucks Equipped With Air Quick Disconnect{0374}
1997/10/27 New Custom Product Support Literature Is Available For 776C Tractors And 777C Trucks Equipped With Fuel Tank Extension Group{0374}
1997/10/27 Changes Made To Water Lines Group In Order To Reduce Damage Caused By Vibration{1380}
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