Margin Pressure Increased For Piston And Vane Pump Group In Steering System{5070,4306}
Usage:
928G (6XR, 7SR) Wheel Loaders;
IT28G (8CR, 9AR) Integrated Toolcarriers
Reference: Service Manual Module, SENR1222, Systems Operation Testing and Adjusting; 928G Wheel Loader; IT28G Integrated Toolcarrier Steering System, November 1966.
Margin pressure for 119-7698 Piston and Vane Pump Group in the steering system has been increased from 3600 ± 100 kPa (520 ± 15 psi) to 3850 ± 100 kPa (560 ± 15 psi). The higher margin pressure assures correct steering response and performance.
Margin pressure can be increased to 3850 ± 100 kPa (560 ± 15 psi) for 119-7698 Piston and Vane Pump Group used on 928G (6XR, 7SR) Wheel Loaders and IT28G (8CR, 9AR) Integrated Toolcarriers to first production.
Caterpillar Information System:
1998/11/16 Improved Throttle Cables Available For Utility Compactors{1265}
1998/11/16 Correction To Testing And Adjusting Manual, RENR3005{0374,5069,5069}
1998/11/16 Hydraulic Electronic Control Now Serviceable{5702}
1998/11/16 Special Instruction, REHS0316, "Troubleshooting Guide For Engine Prelub System" Available{0374,1319,1469}
1998/11/16 Lubrication And Maintenance Literature Available{0374,0375}
1998/11/16 New Manifold In Hoist Lines Eliminates False Actuation Of VIMS (Vital Information Monitoring System){7601}
1998/11/16 New Hoist And Brake Cooling Pumps Are Now Available For Certain Off-Highway Trucks{5083}
1998/11/16 New Clutch Discs With Improved Core Material Now Available For Large Off-Highway Trucks{3187,3030}
1998/11/16 Certain Off-Highway Trucks Shipping With Dry Batteries{1401}
1998/11/16 Torque Converter Lockup Clutch Rebuild{3100,3102,3136}
1998/11/16 Retaining Ring Service Kit Available For Accumulators{5077,4263}
1998/11/16 New Head For Dozer Tilt Cylinders And Change To Head For Ripper Lift Cylinder Assure Oil Flow Through Bypass In Piston. Torque Increased For Piston Nut In Dozer Tilt Cylinders{5102,5104}
1998/11/16 Auger Mounting Bolt Change{5620,5326}
1998/11/16 Compensator And Socket Head Bolts For 3408E And 3412E Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Hydraulic Pump Now Available{1714}
1998/11/16 Revised Special Instruction, REHS0126-02, "Caterpillar Electronic Controls Service Code Information Description List", Available{0374,1901,1927,1930,1948,3168,4348,4802,4808,4810,4812,5511,5701,7490,7494,7601,7602,7610}
1998/11/23 Main Drive Shaft Slip Spline Lubrication Interval Changed {3253}
1998/11/23 Be Sure To Use Correct Stub Shaft When Replacing Cam Idler Gear {1234,1212}
1998/11/23 Dirt Guard On Kingpin Retention Improved {4314,4305,4313}
1998/11/23 Fan Drive Grease Fitting Relocated {7510}
1998/11/23 Supplement For Specification Manual On "Adjustment Procedure For The Bevel Gear Group" {3256,3258}
1998/11/23 Change In Location And Size Of Crankshaft Counterweight Sequence Number {1231,1202}
1998/11/23 Preventing Ether Line From Rubbing Against Other Components {1456}
1998/11/23 Correct Positioning Of Shims On Dump Body Installation {7258}
1998/11/23 Improved Compressor Group Ring Kit {1803}