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• SELECTING LOCATION TO SET OUTRIGGERS
• When setting the outriggers on the structural objects such
as construction site or concrete floor, verify in advance that
the surface where the outriggers will be set has sufficient
strength.
Insufficient strength in the setting surface will result in
overturning or fall of machine due to collapse of the setting
surface.
• Setting the outriggers on the soft ground as given below
will cause the tray of the outriggers to sink in the ground,
leading to the overturning of the machine.
• Road surface with low-cost pavement (low-cost asphalt or
thin concrete)
• Surface with paving stones.
• Area reclaimed after excavation work
• Landfill
• Road shoulders or area close to hole such as excavation
work
• Deteriorated pavement surface
• Areas where under the pavement surface is hollow due to water erosion and the top soil
appears to be hard but soft in the ground.
• Slope
• PROTECTING GROUND
• Place a sole plate of sufficient size with sufficient strength under the tray of all the outriggers
on the soft ground to protect the ground.
• If you have to set the outriggers near the road shoulder by necessity, take secure action to
prevent the collapse of the road shoulder.
• When working on the slope, level the tray of all the outriggers and the ground under the
rubber tracks before setting the outriggers.
Setting the outriggers with the tilted ground surface without leveling the ground surface will
cause the outriggers to slip or overturn, causing serious accidents.
• If the ground is not protected or if the outriggers may sink even after protecting the ground,
do not perform the crane operations.
Leveling ground of slope
Use of stable sole plate
Surface with low-cost pavement
Surface with paving stones
Landfill, etc.
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