System Testing
©PAT Rev. F 03/26/03
190136_f
9
7 SYSTEM
TESTING
To test the electronics:
Each LED on the receiver will light for 2 seconds when the system is powered. All of the indicator
lights must come on or the system is not functioning properly. If any light does not function, do not use
the system until it has been repaired.
Following the successful testing, the LINK LED should come on. If the LED’s do not come on, there is
an error in the transmission. Do not use the system until it has been repaired or replaced. (Refer
Troubleshooting section.)
To test the hoist limiting:
After the electrical connections have been checked to ensure that the system is properly connected for
the crane configuration, the following checks must be made:
The following tests must be performed with care to prevent damage to the machine or injury
to personnel. Proper functioning of the system requires successful completion of these
tests before operating the machine.
•
Check the anti two-block switches and weights for free movement. If the operator cannot see
the load-handling device approaching the boom nose, an assistant (signal person) must watch
the load-handling device. The operator must be prepared to stop the machine immediately
should the RATB system not function properly. This is indicated by lighting the red warning
light, sounding the audible alarm and locking the following crane movements: hoist up,
telescope out and boom down.
•
Manually lift the weight attached to the anti two-block switches. When the weight is lifted, the
audible alarm should sound, the anti two-block alarm light should light.
