Komatsu PC450-8 Operation & Maintenance Manual page 45

SAFETY
VENTILATION FOR ENCLOSED AREA
Exhaust fumes from the engine can kill.
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If it is necessary to start the engine within an enclosed area,
or when handling fuel, flushing oil, or paint, open the doors
and windows to ensure that adequate ventilation is provided
to prevent gas poisoning.
SIGNALMAN'S SIGNAL AND SIGNS
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Set up signs to inform of road shoulders and soft ground. If the visibility is not good, position a signalman if nec-
essary. Operators should pay careful attention to the signs and follow the instructions from the signalman.
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Only one signalman should give signals.
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Make sure that all workers understand the meaning of all signals and signs before starting work.
EMERGENCY EXIT FROM OPERATOR'S CAB
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If it should be impossible to open the door of the cab, break the window glass with the hammer supplied and use
the window as an emergency escape.
For details, see "EMERGENCY ESCAPE HAMMER (3-84)" in this volume.
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When escaping, remove all the pieces of glass from the window frame first and be careful not to cut yourself on
the glass. Be careful also not to slip on the broken pieces of glass on the ground.
ASBESTOS DUST HAZARD PREVENTION
Asbestos dust in the air can cause lung cancer if it is inhaled.
There is danger of inhaling asbestos when working on job sites
handling demolition work or work handling industrial waste.
Always observe the following.
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Spray water to keep down the dust when cleaning. Do not
use compressed air for cleaning.
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If there is danger that there may be asbestos dust in the air,
always operate the machine from an upwind position. All
workers should use an approved respirator.
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Do not allow other persons to approach during the operation.
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Always observe the rules and regulations for the work site
and environmental standards.
This machine does not use asbestos, but there is a danger that imitation parts may contain asbestos, so always
use genuine Komatsu parts.
ELECTROMAGNETIC INTERFERENCE
When this machine is operating close to a source of high electromagnetic interference, such as a radar station,
some abnormal phenomena may be observed.
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The display on the monitor panel may behave erratically.
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The warning buzzer may sound.
These effects do not signify a malfunction and the machine will return to normal as soon as the source of interfer-
ence is removed.
SAFETY INFORMATION
2-21