Section 3 – MACHINE FEATURES Mini-Crawler Crane M A E D A
3-2 1/2019 MC405C-3
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 travelling
on a worksite and craning an object weighing
within the rated total load capacity. This crane
can be operated with a remote control system.
Main Features
Viewed from the travel lever, the front, back, left
and right of the machine are illustrated in this
manual from the front of the machine. Boom
slewing motion is determined with the machine
viewed from directly above; slew clockwise (right)
denotes right-handed motion and slew
counterclockwise (left) denotes left-handed
motion.
The main components of this machine are the
travelling dolly and crane.
Travelling Dolly
The travelling dolly is composed of a travelling
gear, engine, travelling operation unit and crane
operation unit.
This machine is compact in design in order to
keep the overall width between the crane and
outrigger minimised while housed (in travelling
position). This compact design is ideal for work in
confined areas.
Two-travel lever operation enables direction
changes forward, backward and right/left, and
also pivot and spin turns.
Crane
The crane is composed of a telescoping system,
boom system, hook block, winch system and
outrigger system.
Through the combined use of telescoping, boom
slewing and winch operation, the crane is
capable of raising or lowering the hook block and
moving an object weighing within the rated total
load capacity to a designated position within the
confines of the working area.
A remote control system allows remote crane
operation.
Safety Devices
The following safety devices are used on this
machine:
•
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 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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