Differential Steering Carrier Requires Additional Cover{4130,3284}
Usage:
Challenger 65 Tractors
The new 6Y2187 Differential Carrier Assembly used in the 7T7926 Differential Steering Planetary Group replaces the 7T7925 Differential Carrier. The distinguishing differences between the new and former carriers are the presence of raised bosses for some of the hold-down bolts and a port in the top deck, adjacent to the steering motor opening. The port is not used in the current application and must be covered. See illustration for port location.
Port location in differential carrier assembly.
Caterpillar Information System:
1989/09/04 Improved Guards For Brake Actuators {4262,7150}
1989/09/04 New Switch Drive Coupling Assembly Used In Transmission Hydraulic Controls {3167,3168}
1989/09/04 New Final Drive And Brake Wheel Arrangement Is Available {4001,4051,4251}
1989/09/04 Optional Method To Improve Lubrication To Stubshaft Portion Of Drive Shaft {3253}
1989/09/04 Spacers Added To Street Pads On Side Shift Stabilizers To Prevent Contact With Ground {7222}
1989/09/04 Diagnostic Tools For All Wheel Drive Motor Graders {4350}
1989/08/28 New Fuel Injectors Available For Parts Service{1290}
1989/08/28 Use Larger Screws To Fasten Overhead Console{7325}
1989/08/28 New Hose for Electronic Height Sensor{7215}
1989/08/28 New Screw Used In Cab To Fasten Trim In Place{7325}
1989/08/28 New Seals Used In Torque Converter Group And Transfer Gear Group{3101,3159}
1989/08/28 New Drum And Gear Assembly Improves Gear Ratio Of Transfer Drive On 4-WD Backhoe Loaders{3159,3176}
1989/09/11 Orifice Connector Added To Hydraulic Oil Lines Group{5057}
1989/09/11 New Seal Kit Available For Hydraulic System Oil Cooler Gear Pumps{5073}
1989/09/11 Rubber Belted Steps Used{7254}
1989/09/11 New Flywheel Housing Uses No Gasket{1157}
1989/09/11 New Plate Used In Extension Stick Group{6502}
1989/09/11 Converting A Transmission For A 785 Truck For Use In A 789 Truck{3150,3190}
1989/09/11 Intermediate Cylinders In Telescoping Hoist Cylinder Groups Changed To Cylinder Assemblies{5102}
1989/09/11 New Seals Available For The Input And Output Shafts On Differential And Bevel Gear Groups{3253}
1989/09/11 New Seal Retainer In Differential And Bevel Gear Groups{3280}
1989/09/11 New Setscrew For Retainer Collar At Drive Axle Bearing Assembly{3278}
1989/09/11 Repair Parts And Troubleshooting Procedures For Grade And Slope Controls{5645,7220}
1989/09/11 New Key And Pin Assembly And Axle Shaft Used In Lower Rear Drive Assembly{3259}