Maeda MC405C-3 - Page 171

Mini-Crawler Crane M A E D A Section 4 – REMOTE CONTROL SYSTEM COMPONENTS
1/2019 MC405C-3 4-95
Boom Derricking/No.4 Outrigger Operation
Lever
This operation lever functions in two ways as
below:
Fig. 4-244
1. In the CRANE MODE, this lever controls the
boom derricking angle:
• Boom raising: Push the upper end
of the lever.
• Neutral: Release your finger
from the lever.
• Boom lowering: Push the lower end of
the lever.
2. In the OUTRIGGER MODE, this lever
controls extension (setting) and retraction
(stowing) of either only No.4 or all of the
outriggers at once:
• Retraction (stowing): Push the upper end
of the lever.
• Neutral: Release your finger
from the lever.
• Extension (setting): Push the lower end of
the lever.
Accelerator Lever
The Accelerator lever controls the flow rate of the
control valves and the engine speed or output.
Fig. 4-245
• Low idling: Release your finger from the
Accelerator lever.
• Full throttle: Squeeze the accelerator lever to
the full.
NOTICE:
• The Accelerator lever itself cannot control
either flow rate of the control valves or the
engine speed when it is manipulated alone.
In the condition that any of the other operation
levers are also used, the Accelerator lever
launches specified operation of the Crane in
the idling state of the engine, when it is
manipulated, then, the engine speeds up by
further manipulation of it; the crane operation
turns to be faster, accordingly.
• The Accelerator lever does not control
outriggers.
• The acceleration rate is always indicated in the
right part of the LCD screen during crane
operations.
Fig. 4-246