Assestment Maintenance Training

Why should the remote switch on the instrument panel in the dozer be turned off before disconnecting a CM2200 receiver?

If an operator reported that a machine does not respond until the joystick has been moved to half its maximum travel, what action is required by maintenance staff to rectify this situation?

What are some of the common causes that may result in a disparity fault resulting in the machine shutting down?

• Poorly maintained plugs and sockets.

• Ingress of moisture into the connectors, etc.

• Damaged leads/cables, etc.

What method does the ControlMaster CM2200 receiver use to control the proportional functions?

List the three methods that can be used to test the proportional outputs of the CM2200 receiver.

• Using an oscilloscope to view the actual PWM signal.

• Using a multimeter to measure the average dc voltage.

• A test light, which will vary in intensity.

How can it be confirmed that the transmitter functions are being correctly interpreted by the ARX/CM2200 receiver?

What is the purpose or function of the RCT uninterruptable power supply located on the machine and connected to the ARX/CM2200 receiver?

What voltage do the Teleremote cameras operate on?

Why is it important to undertake calibrations of the RCT system to the machine’s input sensors?

What are the two types of calibrations that are possible to be undertaken?

• Electric-over-hydraulic function (tramming)

• Hydraulic-only function.