８．５ Error indication
When an error is detected, the mode indicator goes off or blinks and the voice message “Service remote control” sounds.
Mode
indication
Trouble
Available
operation
None System error
４２
４３
４４
４５
４６
No operation
is possible.
Readjust zero point.
４７
Operation is
possible.
Turn power ON again.
４８
In case where it happens again,
４９
replace control box.
５０
５１
Check transmitter and receiver.
５２ After turning power ON again,
５３
５４
Check connection of cable to receiver.
５５ After turning power ON again,
Turn power ON again.
５６ System error
No operation
is possible.
Turn power ON again.
５７
５８
Unloading error
Radio controller
cannot be
o
erated.
Replace control box.
５９
No operation
is possible.
Turn OFF both emergency stop switches.
６０ Spool neutral error Derrick After turning power ON again,
６１ Hoisting
６２ Telescoping
６３ Slewing
Check that manual lever has not been caught.
６４ Outrigger
６５ Acceleration
６６ Outrigger selection switch Front right RET/EXT Damaged switch exchange
６７ Front left RET/EXT It is possible to operate it excluding the damaged switch.
６８ Rear right RET/EXT
６９ Rear left ET/EXT
（８－４）
“Radio controller selector switch”in control box has
been controlled before indicator "8.8" goes off.
Radio
controller
cannot be
operated.
In case where it happens again,
replace control box.
wait until mode on "8.8" indicator goes off to
operate radio controller.
Manual lever (spool) fails
to be returned to neutral
within 2 seconds after
power has been turned
ON.
Measures
Either one of emergency stop switches has been
depressed.
No operation
is possible.
Failure in radio controller receiver Transmitter lever
has been pulled before indication on indicator
“8.8” goes off.
Transmitter switch has be depressed before
indication on indicator "8.8" goes off.Signal from
receiver failed to be received
Operation is
possible.
wait until mode on "8.8" indicator goes off to
operate radio controller.
Replace fuse in control box.
Turn power ON again.
In case where it happens again,
replace control box.
“Hook storing/releasing switch”on crane side has
been controlled before indicator "8.8" goes off.
In case where it happens again,
replace control box.
No operation
is possible.
wait until “8.8”on mode indicator goes off to
operate radio controller.
If lever has no problem, replace proportional
solenoid valve.
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