• It is dangerous to work under an overhang. Mudslide or
rockfall may occur, or the overhang may collapse. Never
perform digging under an overhang.
• Do not excavate too deeply under the front of the machine.
The ground under the machine may collapse and cause
the machine to fall.
• For a quick escape in an emergency, set the tracks at right
angles to the road shoulder or cliff with the sprocket at the
rear when performing operations.
• Do not pass the bucket over the heads of other workers or over the operator's seat of dump trucks or other
hauling equipment. There is a danger that the load may spill or the bucket may hit the dump truck and
cause serious personal injury or death.
• Generally speaking, the machine is more liable to tip over when the work equipment is at the side than
when it is at the front or rear of the machine.
Be extremely careful when swinging the work equipment from the front or rear to the side of machine while
it is carrying a load. It is dangerous that the machine may tip over.
• When using a breaker or other heavy work equipment, it is dangerous that the machine may lose its bal-
ance and tip over. When operating the machine on the flat ground as well as on slopes, observe the follow-
ing.
• Do not suddenly lower, swing, or stop the work equipment.
• Do not suddenly extend or retract the boom cylinder. It is dangerous that the machine may tip over by
the impact.
PRECAUTIONS FOR OPERATION SAFETY
2-38
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