Page 20 | Stellar
®
Large OTR Service Crane Owner’s Manual
Crane will not
operate.
Radio control system is not
functioning.
Ensure manual/remote switch in the 'Remote'
position.
Ensure transmitter is properly started. Refer to
the radio system manufacturer's manual for
details.
Verify receiver is getting proper electrical
power.
Ensure transmitter battery is charged.
If error code is displayed, refer to the radio
system manufacturer's manual for details.
Ensure E-Stop switch is not engaged.
Manual control system is not
functioning.
Ensure manual/remote switch in the 'manual'
position.
Ensure E-Stop is not engaged.
Crane operates
slowly.
Crane is not receiving proper
hydraulic ow
Check hydraulic reservoir uid level.
Ensure PTO is engaged.
Ensure Panic Bar E-Stop is not engaged.
Verify selector switch is in crane mode and not
stabilizer/off mode.
Ensure dump valve is receiving proper electrical
signal and operating properly.
Verify hydraulic pump is producing proper ow.
Ensure hydraulic oil is at the proper operating
temperature.
Verify engine speed control has been
activated.
Crane is not receiving proper
hydraulic pressure
Check hydraulic reservoir uid level.
Ensure PTO is engaged.
Ensure Panic Bar E-Stop is not engaged.
Verify selector switch is in crane mode and not
stabilizer/off mode.
Ensure dump valve is receiving proper electrical
signal and operating properly.
Verify hydraulic pump is producing proper
pressure.
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