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[12] OVER-HOISTING CANCEL SWITCH
• The Over-hoisting cancel switch cancels the auto-stop function of the over hoist detector.
Operate the winch lever carefully when stowing the hook block. Pay sufficient attention not to
let the hook block collide with the boom.
• Use this switch only when stowing the hook block.
The purpose of the switch (12) is to stow the hook block into it‟s
stowage position in the boom top.
The pilot lamp inside the switch button lights when it is pushed to
the RELEASE position and is off when positioned AUTO.
・Release: Keep the button pushed and operate the control lever
to raise the HOOK . The hook block will be winched for stowage
to the boom top.
・Auto: Release the finger from the button. It returns to the previous
position and the auto-stop function of overwind detector will be
enabled.
• When turning this switch to the RELEASE position, the red
lamp of the working status lamp will light up.
• When the hook block is hoisted and this switch is pushed, the
winch speed is slower, however it is not a winch failure.
[13] WINCH SPEED SELECTOR SWITCH
• High speed winch hoisting and lowering are allowed only in a condition that no load is hoisted.
When any load is hoisted or lowered in high speed, it may cause an accident to the machine ,
overturning or damaging it, or the hoisted load may drop which results in a serious injury or
death to personnel.
• Where the load of the hoisting is "0.5 tons" or more, the high speed operation is not available
even when the winch speed selector switch is pushed to the "High speed" position (with it’s
pilot lamp ON).
While the load of the hoisting is "0.2 tons" or less, the high speed hoisting/lowering are
enabled, however such practice may cause an accident to the machine overturning or
damaging it, or the hoisted load may drop which results in a serious injury or death to
personnel. It is advisable to avoid such a practice.
The purpose of the switch (13) is to use it for changing the winch
speed for hoisting and lowering. During such hoisting and lowering
operation, the pilot lamp inside the switch button lights when it is
pushed to the "High speed" position and is off when positioned to
"Low speed".
• High speed: Push the switch button, then hoisting/lowering speed
is accelerated.
• Low speed: Push the switch button, again. Then hoisting/
lowering speed resumes to normal.
During the FALL MODE in the moment limiter, when set to "1 FALL", the high speed winching is not
available, even when this selector switch is positioned "High speed" (, the lamp of the switch keeps
OFF). The winch is fixed to "Low speed".
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