The drive controller is only on loaders equipped with the SJC option. This controller processes information for the drive functions.
The drive controller is located behind the right side access panel near the operators right foot.
The drive controller monitors the position of the left joystick, pump swash plate angles and the output of the wheel speed sensors.
The drive controller works along with the ACS controller and communicates with the main Bobcat controller in an SJC system. All these controllers are capable of software upgrades.
The SJC system uses electronic joysticks to control both of the workgroups (lift and tilt) and the drive functions of the loader. The control can be switched from ISO and H-Pattern drive control layouts.
The workgroup actuators are the same used on the ACS system.
The hydrostatic drive pump is a Rexroth A22 unit. It has two electromagnetic coils on each of the two pumps to control the drive of the loader. The coils will direct the forward and reverse outputs of the pump to the drive motors. The Rexroth pump is equipped with position sensors mounted to the bottom of the swash plates to provide feedback to the controllers to sense uncommanded swash plate movement.
