Longer Steering Hose Assembly Eliminates Rubbing {4304}
Usage:
793C (4AR) Off-Highway Trucks
Description of Change: A longer steering hose assembly will improve service life. This improvement will eliminate frictional interference on the hose assembly from engine and power train cooler components.
Adaptable To: The 155-6178 Hose Assembly is a direct replacement for 126-3754 Hose Assembly in 124-7694 Steering Lines Group (not serviced). 155-6178 is effective with 793C (4AR283-UP) and is adaptable to all earlier models.
(1) 6V-9948 Stem Assembly (2) 4S-5414 Sleeve. (3) 5P-0178 Hose. (4) 6V-9945 Stem Assembly. (A) 90° Stem (11/16-16 THD). (B) 2520 ± 20 mm (99.2 ± .78 in). (C) 2455 mm (96.6 in). (D) Straight Stem (11/16-16 THD).
Caterpillar Information System:
1998/02/09 Exhaust Bypass Group Changes Provide Improved Reliability, Performance, And Serviceability {1057}
1998/02/09 Additional Brake Studs Are Required To Increase Brake Pressure On Certain Off-Highway Trucks {4061}
1998/02/09 Process Changes Result In Improved 3500 Engine Remanufactured Connecting Rod Assembly {1218}
1998/02/09 New Tie Rods And Spindle Assemblies Improve Service Life {4329,3282}
1998/02/09 Windshield Installation Instructions For 24H Motor Graders {7310,7320,7301}
1998/02/09 Improved Limited Slip Differential Thrust Washers And Hardened Discs Improve Service Life {3263}
1998/02/09 Service Charts And Decals Available {0374,0375}
1998/02/02 Machine Flash Software (Non-Engine Software) Ordered Through The Parts Distribution System Is Now Available Through The Corporate Mail Box {1900,1920}
1998/02/02 New Air Conditioning Accumulators Improve Service Life {7309}
1998/02/02 Neutralizer Switch Corrected For Transmission Electronic Control System {3030,3168}
1998/02/02 New Lip Seal Available {3030,3075}
1998/02/02 Revised Labels For Service Manual, SENR6780, Volumes I and II Are Available {0374}
1998/02/09 VIMS Internal Back-Up Battery Life Expectancy And Replacement Procedure {7601}
1998/02/09 Machines Equipped With Snow Tires Can Prevent Fender Damage {3013}
1998/02/09 New Fan Drive Group (Variable Speed) Provides Increased Service Life {1359}
1998/02/09 8N-4617 Air Cleaner Clamp Kit Available {1051}
1998/02/09 Replacements Products Available For 4C-4079 Brake And Component Cleaner {0680}
1998/02/09 New Shaft Seals Available For Gear Type Hydraulic Pump Groups To Prevent Leakage {5073}
1998/02/09 Proper Reading Of LCD Service Meters {7450,7478,7480}
1998/02/09 Replacement Available For 7M-7260 Liquid Gasket {0648,0649,0651}
1998/02/16 Chrome Tension Cylinder Rods Are More Durable And Improve Seal Life {4197}
1998/02/16 24H Motor Grader Windshield Wiper Now Serviced {7305}
1998/02/16 Special Instruction, SEHS9364-02, "Off-Highway Truck Rear Wheel Salvage", Is Now Available {0374,4208}
1998/02/16 Procedure For Engine Pre-Lubrication System Bypass On Certain Off-Highway Trucks {1469}