Maeda MC815C, Operation Manual, Page: 175 / 426

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2.21 SLEWING OPERATION
• Check it is safe in the vicinity and honk the horn before slewing.
• Operate the left control 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 trip the Machine.
• Even if the outriggers are set correctly, the
suspended load is slightly unstable in a specific
direction. Exercise caution when slewing the boom
with a suspended load.
• In some cases, depending on the configuration of
the outriggers, the suspended load may hit the
outriggers, resulting in damage to the crane or
overturn of the machine. Exercise caution to
prevent the suspended load from hitting
outriggers.
• If the boom angle is less than 12 degrees, all boom slewing operations are disabled
within the range between 335 to 3 degrees, to prevent it from hitting the operators.
However, 360 degrees slewing can be operated with radio control, regardless of the
boom angle.
Operate the left control lever (2) as follows:
• Clockwise: Push the lever to the left.
• Neutral: Release your hand from the lever.
The lever returns to the “NEUTRAL” position and
the slewing stops.
• Counter clockwise: Push the lever to the right.
NOTES
Control the crane slewing speed with the left control lever
and the stroke of the accelerator pedal.
2.22 ACCELERATOR OPERATION
Accelerating the operation speed of the crane more than is necessary is dangerous.
CAUTION
Decrease the speed at the beginning and near the end of an operation. Change the
speed to low or high according to the load.
Operate the accelerator pedal (6) as follows:
･
Low idling: Take your foot off the pedal.
The engine speed decreases, causing the
operation speed of each crane component to
decrease.
• Full speed: Fully depress the pedal.
The engine speed increases, causing the
operation speed of each crane part to
increase.
NOTES
Operate the machine by pressing down on the accelerator
pedal according to the engine speed required for the work
to be done.