User's Manual

2. Cleaning
A. External
1. Case- general
2. Emergency stop knob.
3. Start key and socket. Remove key and blow out socket with low-pressure
compressed air.
4. Around dials and buttons.
B. Internal
1. Battery compartment and holder.
2. The inside of the unit should not require cleaning if covers, gaskets, and
joystick boots are intact. Low-pressure compressed air may be used
sparingly if desired.
3. Test the unit thoroughly
A. Verify all functions are operating correctly.
1. A thorough, discriminating test of all transmitter functions will disclose most
problems before they can cause trouble. Use the TEST/RUN switch in the
receiver to prevent crane movement. Set this switch to TEST position. Match
functions with corresponding LED on receiver.
6.0 Troubleshooting Common Mistakes In Installation:
− Receiver dead: Is 120 volt AC applied between X1 and X2 wires? These are
wires 1 and 2. You must provide both the hot and the neutral sides of the control
transformer secondary to power the unit.
− Relays close but there is no movement from the crane: Are the COMMON
wires hooked up properly? The receivers have “dry” contacts. Even though X1
and X2 have been applied to power the receiver, you still need to apply power to
the common side of the relay contacts in order to get power to your contactors.
These are the COM wires for each of the outputs on the receiver. Each COM
wire is completely isolated from the others as well as the power wires. In most
cranes, the COM wires will be connected to the X1 supply.
− If the transmitter does not work: Check that all four batteries have sufficient
power and verify correct battery polarity as shown on the battery pack.
If you have any problems or questions not covered above, please call ITL at 1-800-382-3558.
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