Furukawa Unic URW370C4U Series, Operation & Maintenance Manual

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18-4
MODE INDICATOR LAMP (CONTROL BOX)
Mode Mode description
Radio
control
operation
mode
Manual
operation
mode
Manual lever is not at its neutral position when power is
turned ON.
Do not operate the crane as it is carrying out system diagno-
sis for about 3 seconds after power has been turned ON.
If this appears even when the crane has not been operated,
ask an authorized UNIC service shop for repair.
× ×
Either one of Outrigger control switches
”
in switch panel
of the crane is in failure.
(Failed switch cannot be controlled but crane operation is
possible.)
◯ ◯
Stop radio control operation to try controlling levers manu-
ally.
Check that the manual control levers make a smooth move-
ment and that any of levers will not interfere with any-
thing.
If indication fails to return to be normal, ask an authorized
UNIC service shop for repair.
× ×
Engine speed control is not carried out correctly.
Crane can be operated but if this appears more frequently,
ask an authorized UNIC service shop for repair.
◯ ◯
No radio control operation is possible.
× ◯
No operation is possible either by radio control or by man-
ual control.
× ×
Capacity of batteries has been dropped.
Try actuating reset switch in the control box to reset it
once.
If the trouble persists, ask a UNIC authorized service shop
for repair.
Replace old batteries with new ones as capacity of them has
already been dropped.
× ×
Batteries of radio control transmitter are running out.
Replace old batteries with new ones and turn OFF power
once then turn it ON again.
◯ ◯