Komatsu PC1250-11, Original Instructions Manual

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ceiling window is scratched and is not replaced, there is a danger that any rocks falling on it will cause it to
break, leading to injury to the operator.
PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING
The engine exhaust gas contains substances that may damage
your health or even cause death. Start or operate the engine in
a place where there is good ventilation. If the engine or ma-
chine must be operated inside a building or underground,
where the ventilation is poor, take steps to ensure that the en-
gine exhaust gas is removed and that ample fresh air is
brought in.
,&
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTE-
NANCE
SAFETY
2-18