Komatsu PC2000-8 BACKHOE, Operation & Maintenance Manual

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SAFETY
PRECAUTIONS FOR MAINTENANCE
2-41
HANDLING HIGH-PRESSURE HOSES AND PIPING
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If oil or fuel leaks from high-pressure hoses or piping, it may cause fire or misoperation, and lead to serious
personal injury, or death. If the hose or piping mounts are loose or oil or fuel is found to be leaking from the
mount, stop operations and tighten to the specified torque.
If any damaged or deformed hoses or piping are found, please consult your Komatsu distributor.
Replace the hose if any of the following problems are found.
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Damaged hose or deformed hydraulic fitting.
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Frayed or cut covering or exposed reinforcement wire layer.
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Covering swollen in places.
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Twisted or crushed movable portion.
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Foreign material embedded in covering.
PRECAUTIONS FOR HIGH VOLTAGE
When the engine is running and immediately after it is stopped,
high voltage is generated inside the engine controller and the
engine injector, and there is danger of electrocution. Never
touch the inside of the controller or the engine injector portion.
If it is necessary to touch the inside of the controller or the
engine injector portion, please contact your Komatsu distribu-
tor.
NOISE
When carrying out maintenance of the engine and you are exposed to noise for long periods of time, wear ear cov-
ers or ear plugs while working.
If the noise from the machine is too loud, it may cause temporary or permanent hearing problems.