Komatsu PC220LC -8 Operation & Maintenance Manual page 40

SAFETY SAFETY
When carrying out demolition work, do not carry out demolition
work under the front of the machine. This makes the ground
unstable, and there is a hazard of the machine falling.
When carrying out demolition work, do not carry out demolition
work above your head. There is a hazard of broken parts falling
or of the building collapsing and causing serious injury or death.
When carrying out demolition work, do not use the impact force
of the work equipment for breaking work. There is a hazard of
damage to the work equipment and also a hazard of serious
personal injury or death being caused by flying pieces of broken
materials, or of the machine tipping over due to reaction from the
impact.
The 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 danger that the load may spill or the bucket may hit the dump truck and cause
serious personal injury or death.
When working on or from the top of buildings or other structures, check the strength and the structure before
starting operations. There is a hazard of the building collapsing and causing serious injury or damage.
Generally speaking, the machine is more liable to overturn when the work equipment is at the side than when it
is at the front or rear.
When using a breaker or other heavy work equipment, there is a hazard of the machine losing its balance and
tipping over. When operating on flat ground as well as on slopes.
Do not suddenly lower, swing, or stop the work equipment.
Do not suddenly extend or retract the boom cylinder. There is a hazard that impact will cause the machine to
tip over.
PRECAUTIONS FOR OPERATION PRECAUTIONS FOR OPERATION
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