New Hardened Locknut Improves Retention Of Impeller On Piston Pump Shaft {5070}
Usage:
245 (94L, 95V, 82X, 84X),
245B (6MF, 1SJ),
245D (7ZJ, 4LK) Excavators;
992C (49Z),
992D (7MJ),
992G (7HR),
994 (9YF) Wheel Loaders
New 159-8522 Locknut (1) replaces the former 6H-6021 Locknut used to retain the impeller on the piston pump shaft. New 159-8522 Locknut (1) is hardened to lessen thread stripping on the shaft.
New 159-8522 Locknut (1) is adaptable to first production for the above models using 1U-3840, 3G-2848, 3G-7230, 4T-2506, 4T-7027, 4Z-5914, 4Z-5915, 6E-5963, 8J-4380, 112-5381, or 124-3761 Piston Pumps.
Typical Piston Pump
Caterpillar Information System:
1998/06/01 Installation Of Tow Hooks To Carbody {7103,7062}
1998/06/01 Shims Prevent Binding Of Rotor In Swivel {5060}
1998/06/01 New Improved Alternator Guard Assembly {7168}
1998/06/01 New Duo-Cone® Seals In Track Rollers Improves Corrosion Resistance And Low Temperature Performance {4180,7561}
1998/06/01 Support Literature Is Now Available For Maintaining Air Conditioning And Heating Systems {7300,7304,7309,7320,7337}
1998/05/25 New Valve Cover Seal Used {1107}
1998/05/25 New Ether Starting Aid Group Used {1456}
1998/05/25 New Main Pump Group Creates New Specifications For Service Manual Module SENR8971 {5050,0372}
1998/05/25 New Main Pump Group Creates New Specifications For Service Manual Module SENR8961 {5050,0372}
1998/05/18 Entertainment Radios Improved With Increased Reliability {7338}
1998/05/18 New Final Drive Parts Reduce Gear Play {4051}
1998/05/11 New Engine Lifter Arm Assembly With Crowned Roller Used In Lifter Groups {1209}
1998/06/01 Information System Builder V1.2 May Experience An "Operating System Error" {7601}
1998/06/01 Uploading VIMS Source And Configuration Software {7601}
1998/06/01 Preload Adjustment Changed For Shaft Bearings And Barrel Face In Piston Motors {5058}
1998/06/01 Effectivity Of Current Production Water Pump Group On Caterpillar Machines Powered By A 3406C Machine Engine {1361}
1998/06/01 Proper Checking For Refrigerant Leaks Ensures Maximum Service Life Of Refrigerant Compressor {1802,1809,7320}
1998/06/01 Manufacturing Process Improvement Increases Reliability Of Speed Sensors {1900}
1998/06/08 Improved Front Lines Group Increases Reliability {5057}
1998/06/08 New Seals Used On Mass Excavator Bucket Linkage Joints {6513}
1998/06/08 Improved Fuel Lift Pump For 3054 Engines {1250,1256,1258}
1998/06/15 New Water Pump Available{1350,1361}
1998/06/15 New Air Intake Pipe Assembly Improves Engines{1050,1071}
1998/06/15 Rubber Seals Protect Fuel Injectors Against Rust{1252,1254}