M A E D A Mini-Crawler Crane Section 3 – MACHINE FEATURES
3/2019 MC305C-3 3-2
MACHINE FEATURES
This machine is only to be used for crane
operation.
This machine is a mobile crane with a rubber track
travelling dolly (carrier) mounted with a boom
crane.
This self-propelled crane is capable of moving
(travelling) on a worksite and craning an object
weighing within the rated total load capacity. This
crane can be operated from the operation seat or
with a remote control system.
Main Features
Viewed from the operation seat, the front, back,
left, and right of the machine are determined in
this manual, viewing in the travelling direction
(front) of the machine.
Boom slewing motion is determined with the
machine viewed from immediately above; slew
clockwise (right) denotes right-handed motion and
slew counterclockwise (left) denotes left-handed
motion.
This machine is composed of the units listed
below.
Travelling Dolly
This is a compact machine designed to keep the
overall width between the crane and outrigger
minimised with them housed (in travelling
position).
This compact design is ideal for work in confined
areas.
Two-travelling lever operation enables not only
direction changes among forward, backward, and
right/left but pivot turn and spin turn.
Crane
An automatic slide outrigger is embedded in the
crane to permit outrigger extension and grounding
from the operation seat.
Through the combined use of telescoping, boom
lift, and slewing besides winch system operation,
the crane is capable of raising or lowering the
hook block and moving an object weighing within
the rated total load to a designated position within
the confines of the working envelope.
Radio- and remote-control system allow remote
outrigger setting and remote crane operation.
Safety Devices
This is composed of the following parts and
devices:
•
Over winding detector
•
Rope over unwinding detector
•
Automatic stop device (moment limiter)
•
Angle indicator
•
Hydraulic safety valve
•
Hydraulic automatic locking device
•
Latch
•
Alarm buzzer
•
Audio alarm
•
Level gauge
•
Crane tip-over alarm (an alarm issued in the
event of the crane operation at 3-degree
inclination and travelling at 15-degree
inclination)
•
Travelling lever lock
•
Travelling/crane/outrigger selector switch
(designed to prevent the machine from
craning at travelling)
•
Outrigger safety device (outrigger interlock
and crane interlock)
•
Working envelope limited
•
Working status lamp
•
Outrigger un-set warning lamp
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