Furukawa Unic URW370C4U Series, Operation & Maintenance Manual

Page: 241 / 248

18-3
MODE INDICATOR LAMP (CONTROL BOX)
Mode Mode description
Radio
control
operation
mode
Manual
operation
mode
No operation is possible either by radio control or by man-
ual control.
× ×
Turn OFF power once then turn it ON.
If the trouble persists, ask an authorized UNIC service shop
for repair.
(Although it can be operated either by radio control or by
manually, shock-less function returns to be active
”
.)
◯ ◯
No radio control operation is possible.
× ◯
(Lights)
Radio control receiver is not connected.
Check that cable connector (located inside switch box) of
receiver is securely connected.
Check cable to receiver for damage and break.
× ◯
Either mode selector switch
”
, hook storing switch
”
or
radio control selector switch
”
in the control box is faulty.
(Failed switch cannot be controlled but crane operation is
possible.)
◯ ◯
No operation is possible either by radio control or by man-
ual control.
× ×
No operation is possible either by radio control or by man-
ual control.
Turn OFF power once then turn it ON again.
× ×
Radio control operation cannot be possible and engine
speed control and safety devices will not function.
× ◯
Emergency stop switch
”
has been depressed.
If this is indicated even when the emergency stop switch
”
has not been depressed, ask a UNIC service shop for repair.
× ×
Mode description when crane is in trouble (Blinking indication)
2.
◆
Mode indication when crane is in trouble
When the mode indicator lamp
”
is blinking figures larger than [ ] (or [ ] lights),
the crane system is in trouble (system trouble indication).
If the system trouble indication is found on the mode indicator lamp
”
, confirm and follow
the mode description on the table illustrated below:
If the crane becomes impossible to be operated, store the crane by following procedures
described in section 12.
◆
5.Operation in an emergency
”
(on page 12-42), and ask an
authorized UNIC service shop for repair.