4.6 SWITCHES M A E D A Crawler Crane
4-38 5/2020 CC1908S-1
[8］ Roof window wiper switch
Use this switch to operate the wiper and window
washer on the cab roof window.
(a) Wiper position: The wiper operates.
(b) Washer position:
When the switch is depressed, washer fluid is
sprayed out and the wiper operates.
When you release your hand from the switch,
the switch returns, the washer fluid stops, and
the wiper also stops.
(c) Stop position: The wiper stops.
[9］ Buzzer cancelling switch
For your safety, set the switch to the normal
position while working.
(a) Cancel position:
The warning buzzer sound is stopped.
(b) Normal position:
The warning buzzer tone sounds.
Only the buzzer tone when an error code is
displayed can be cancelled.
[10] Winch 1st speed/2nd speed selector
switch
WARNING
• Raise and lower at high speed only when
there is no load and no load is being hoisted.
Raising and lowering a hoisted load at high
speed may cause serious personal injury
due to the machine toppling, breakage, or
dropping the load.
• If the hoisted load weighs 0.5 t or more, it
cannot be operated at high speed even when
the winch 1st speed/2nd speed selector
switch is operated.
If the hoisted load weighs 0.2 t or less, it can
be raised and lowered at high speed, but this
should be avoided where possible, as there
is a risk of serious personal injury due to
machine toppling, breakage, or dropping of
the load.
Use this switch to change the speed when raising
or lowering the winch.
The lever switch selects "Low speed (1st speed)"
or "High speed (2nd speed)".
• Low speed (1st speed): The speed returns to
the normal raising and lowering
speed.
• High speed (2nd speed): Raising and lowering
speed is increased.
Check that the monitor display also changes when
the lever switch is pressed.
When the number of falls on the moment limiter is
set to "Single fall" or "2 falls", the speed cannot be
set to high even if this switch is set to the "High
speed (2nd speed)" position. The speed is fixed to
"Low speed (1st speed)".
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