CONTROL GP-TRANSMISSION 8Y7482 - Caterpillar

The drive hydrostatic pumps are located above the bottom guard. The pump is mounted in line with the shaft for the engine output.Reference: Refer to Systems Operation, UENR4089, "Piston Pump (Hydrostatic)" for additional information.Crossover Relief (COR) Valves
Illustration 2 g03704786
(3) Left drive COR valves
(4) Right drive COR valves The drive hydrostatic COR valves are located above the bottom guard on the piston pump.Reference: Refer to Systems Operation, UENR4089, "Relief Valve (Crossover)" for additional information.Charge Pump
Illustration 3 g03704856The charge pump is located above the bottom guard. The pump is mounted to the back of the implement pump.Reference: Refer to Systems Operation, UENR4089, "Piston Pump (Implement)" for additional information.Hydrostatic Piston Motors
Illustration 4 g03704864The drive motors are mounted inboard of the final drive and parking brake units.Reference: Refer to Systems Operation, UENR4089, "Piston Motor (Hydrostatic)" for additional information.Final Drives
Illustration 5 g03704875The final drives are located to the rear of the machine on both sides.Reference: Refer to Systems Operation, UENR4089, "Final Drive" for additional information.Parking Brake Switch
Illustration 6 g03704878The switch is located on the switch panel that is located to the right of the seat.Reference: Refer to Systems Operation, UENR4089, "Electronic Control (Power Train System)" for additional information.Brake and Deceleration Pedal (Sensor)
Illustration 7 g03704904The sensor is a part of the pedal housing. Remove the access panel in order to access the sensor.Reference: Refer to Systems Operation, UENR4089, "Electronic Control (Power Train System)" for additional information.Power Train Joystick
Illustration 8 g03704919The power train joystick is located on the left-hand side of the operator. The following items are located on the power train joystick.
Steering sensor
Horn switch
Speed recall
Thumb wheelReference: Refer to Systems Operation, SEBU9226, "Operation and Maintenance Manual" for additional information.Motor and Track Speed Sensor
Illustration 9 g03704970
(5) Left track speed sensor
(6) Left motor solenoid
(7) Right motor solenoid
(8) Right track speed sensor The track speed sensors are located on the left and right motor.The motor solenoids are located on the left and right motor.Reference: Refer to Systems Operation, UENR4089, "Electronic Control (Power Train System)" for additional information.Backup Alarm
The backup alarm is mounted on the rear of the machine.
Illustration 10 g02915906The alarm is located through the panel on the rear of the machine from the corner of the right-hand sideReference: Refer to Systems Operation, UENR4089, "Electronic Control (Power Train System)" for additional information.Electronic Control Module
Illustration 11 g02821897The electronic control module is located on the machine right side, in the rear access panel.Reference: Refer to Systems Operation, UENR4089, "Electronic Control (Power Train System)" for additional information.