Maeda MC285C-3 - CRANE OPERATION

Section 4 – CRANE OPERATION Mini-Crawler Crane M A E D A
4-54 1/2019 MC285C-3
CRANE OPERATION
The following list of potential hazards must be
observed while operating the crane or boom.
Before operating the crane, be sure to verify that
the Moment Limiter Override Switch is at the “OFF”
position. Do not attempt to operate the crane with
the Moment Limiter Override Switch set to “ON.”
The Moment Limiter Override Switch should be
set to “ON” only when the moment limiter is faulty
or for crane inspection and maintenance work.
WARNING! Unsafe Operation Hazard. Do not
operate the crane and boom if an abnormal
condition occurs. Stop the operation
immediately and correct the problem. Contact
us or our sales service agency to request
inspection and repair service.
WARNING! The following safety messages
address a potential Crush Hazard while
operating the crane and boom. Prevent any
body part from entering the following areas:
• Between the boom and the travelling dolly
• Between the outrigger support and the
ground contact surface
• Between the boom/post and the boom
cylinder
• Between the winch drum and the wire ropes
• Between sheaves and wire rope
• Between the crawlers and the ground
Fig. 4-148
WARNING! The following safety messages
address a potential Crush Hazard while
operating the crane and boom:
• Verify there are no people within the working
radius of the crane and boom before
operating the crane and boom. Blow the
horn to signal operations are to begin. Be
sure people do not enter the area inside
working radius while the crane and boom
are operating. Take into consideration that
the working radius increases when a load is
hoisted and the boom deflects.
Fig. 4-149
• Never move people with the crane and boom.
People must stay off of the crane and boom
while the machine is operating.
Fig. 4-150
• Use caution when operating the boom with a
low boom angle. Do not allow the boom to
hit the operator or the machine when the
boom angle is low.
WARNING! The following safety messages
address a potential Tip Hazard while operating
the crane or boom:
• Do not work beyond the capacity of the
machine. Always observe the "RATED
TOTAL LOAD CHARTS" on page 3-13.
• Do not raise or lower the boom quickly.
• Always set the outriggers on solid, level
ground when performing crane operations.
WARNING! The following safety messages
address a potential Unsafe Operation Hazard
while using more than one crane to hoist a
load:
• Avoid using more than one crane to hoist a
load.
• When using more than one crane, establish
a work process with responsible operators.
• Communicate the process fully and assure
that the process is understood by all
involved.