Maeda MC305C-3 - Cautions When Placing Outrigger

M A E D A Mini-Crawler Crane Section 4 – OUTRIGGER SETTING
3/2019 MC305C-3 4-37
Cautions When Placing Outrigger
Always observe followings to prevent serious
injuries and death accidents when placing the
outriggers.
• When placing the outriggers, ALWAYS keep the
Machine sternly level while looking at the level
gauge. Occasionally view the level gauge and
make sure to keep the Machine level during the
crane works as well. Performing the crane
operation with the body tilted will cause
overturning.
This device indicates how much the machine
body is tilted.
The bubble position shows how much the
machine is tilted in which direction.
Use this device to verify that the machine is
levelled when setting the outriggers.
Fig. 4-84
• Place the outriggers at a maximum extension
condition as the basic rule.
In case of placing in a non-maximum extension
condition for unavoidable reason, ALWAYS find
the values outrigger middle extension or
outrigger minimum extension values in the rated
total load chart before work.
Fig. 4-85
• Place the outriggers in a style that the rubber
tracks are approximately 50 mm above the
ground.
Fig. 4-86
• Make sure all of the outrigger position pins are
securely fixed.
• Do NOT let people approach nearby when
placing the outriggers.
Otherwise, serious accidents for instance the
outrigger support catching a foot may occur.
• Verify that the Moment Limiter Override Switch
is at the "OFF" position.
• Do NOT attempt any outrigger operation with
the moment limiter override switch 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.
If the Moment Limiter Override Switch is "ON",
an alarm buzzer will sound intermittently.
Fig. 4-87
Ground for Setting Outriggers
Always set the outriggers to the level, safe and
solid ground.
Performing the crane operation without setting the
outriggers can contribute to the overturning of the
machine.
Outrigger Safety Device
Always set the moment limiter override switch to
the "OFF" position when operating the outriggers.
Do not operate the outriggers with the moment
limiter override switch at the "ON" position.
Set the moment limiter override switch to the "ON"
position only when performing the inspection and
maintenance.