Section 4 – RADIO REMOTE CONTROL SYSTEM OPERATION Mini-Crawler Crane M A E D A
4-114 9/2020 MC285CB-3
Slewing Operation
WARNING! Sudden Movement Hazard. Always
move the accelerator lever slowly and operate
the motor at low speed when slewing a load.
Do not allow abrupt slewing of the load.
WARNING! Check for safety in the vicinity and
honk the horn before slewing.
WARNING! Operate the lever as slowly as
possible. Make sure to start smoothly, slew at
low speed, and stop quietly. Especially avoid
sudden lever operations when the load is
hoisted, which may cause the load to waggle
and cause the machine to lose balance, and
thus may damage the crane or tip the
machine.
WARNING! Even if the outriggers are set
correctly, the hoisted load is slightly unstable
in a specific direction. Exercise caution when
slewing the boom with a suspended load.
WARNING! In some cases, depending on the
configuration of the outriggers, the hoisted
load may hit the outriggers, resulting in
damage to the crane or overturning of the
machine. Exercise caution to prevent the
hoisted load from hitting outriggers.
Move the operation lever (9) as follows:
• Clockwise (right): Push the lever forward.
• Neutral: Release your hand from the lever.
• The lever returns to the “Neutral” position and
the slewing stops.
• Counterclockwise (left): Pull the lever toward
you.
Fig. 4-283
NOTICE: Adjust the crane slew speed by moving
the lever forward or backward.
Micro Speed Mode Switch Operation
Press the Micro Speed Switch to set or cancel
Micro speed mode.
Setting Micro speed mode limits the maximum
movement speed even when the levers are
moved by a large amount, allowing stable
operation at low speeds.
Fig. 4-284
Fig. 4-285
Emergency Stop Switch (EMO)
Operation
NOTICE:
• If any emergency or abnormality in crane
operation is experienced, immediately press the
Emergency Stop (EMO)/Transmitter Power OFF
Switch to stop the machine. The abnormality
mentioned above includes: continuation of
crane operations even after the release of
operation levers, or unexpected crane
movements before the operation levers are
used.
• In the event of an emergency stop of the
machine, investigate the cause for the
abnormality and repair the fault location.
• The Emergency Stop Switch (EMO) can also be
used for turning OFF the power to the
transmitter.
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