New Ring Seal Material Used In Brake Groups For Improved Service Life {7555,4251}
Usage:
All Off-Highway Trucks
Description of Change: The ring seal material and part numbers have been changed in the brake groups. The change in the material of the ring seals is indicated by the change in the color of the seals, from orange to blue. This change in material will provide better sealing and easier assembly.
Adaptable To: The change in material specification of ring seals is effective with and adaptable to all the trucks listed in the following charts.
NOTE: The 123-7272 Ring Seal has replaced 5P-5011 Ring Seal and 123-7275 Ring Seal has replaced 8W-1358 Ring Seal in brake groups for all applicable tractors and trucks.
Caterpillar Information System:
1996/06/10 Special Instruction SEHS9966 Available For Field Installation For Remanufactured Wheel Arrangement And Axle Housing Assembly {3260}
1996/06/10 Special Instruction SEHS9965 Available For Installation Procedure For 129-0899 Bearings Located In Rear Suspension Group {7212,7551}
1996/06/10 New And Modified Hoist Cylinder Valves And Plates Available To Soften Landing Of Body {5102}
1996/06/10 New Hose Assembly Now Used In Oil Cooler Lines Group For Easier Orientation During Installation {4257}
1996/06/10 New Torque Converter Ring (Seal) Used To Improve Service Life {3100}
1996/06/10 Service Magazine Special Edition, SEPD0305, Available {0374}
1996/06/10 Hydraulic Valve Groups Use New Implement Quick Couplers {6129,5057,5051}
1996/06/03 New O-Ring Seal Improves Engine Initial Combustion Gas Sealing{1290}
1996/06/03 Improved Governor Servo Components Available For Use With Energize To Run Solenoids; Energize To Run Solenoid Stop Bolt Adjustment Procedure{1264,1259}
1996/06/03 U-Cup Rod Seals Available For Hydraulic Cylinders Used In Cold Temperatures{5102,5104}
1996/06/03 Long Life Coolant Antifreeze (LLCA) Used In Cooling System{1395}
1996/06/03 Field Repair For Cracked Upper Strut Mount Plate{7051}
1996/06/10 Special Instruction SEHS8433 Available For Repair Of Wheel And Track Loader Lift Arms And Levers {6107,6119}
1996/06/10 Adjustment Screw With Better Fit Available For Pump Pressure Compensator Valve Groups {5086}
1996/06/10 New U-Cup Seal And Spacer(s) Replace Cylinder Rod Packing Seal {5101,5102,5103,5104,5213,5223,5229,5265}
1996/06/10 Stainless Steel Sleeve Assemblies Used In Exhaust Ports {1059}
1996/06/10 Incorrect Full Torque Setting Values Displayed On Engine Information Tags {1901}
1996/06/17 Special Instruction SEHS9948 Available For Rear Axle Lubrication And Filtration Retrofit For 793 And 793B Off-Highway Trucks{3278,3013}
1996/06/17 New Final Assembly Tightening Procedure For Retainer Plate Bolts{4215}
1996/06/17 New Configuration Software Developed For Off-Highway Trucks{7852}
1996/06/17 New Dust Seal Used In The 1G-6666 Drum Support Housing{5656}
1996/06/17 Tamper-Proof Caps Available For Hydraulic Implement Pump Groups{5073}
1996/06/17 Improved Roller Switch Assembly Used{1400}
1996/06/17 New Roller Switch Assemblies Used{1400}