Komatsu PW130ES-6K Operation & Maintenance Manual page 40

SAFETY
WARNING: Failure to follow these safety precautions may lead to a serious accident.
If water gets into the electrical system, there is danger that
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the machine may not move or may move unexpectedly.
Do not use water or steam to clean the sensors, connectors,
or the inside of the operator's compartment.
PRECAUTIONS WITH BATTERY
When repairing the electrical system or when carrying out
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electrical welding, remove the negative (-) terminal of the bat-
tery to stop the flow of current.
HANDLING HIGH-PRESSURE HOSES
Do not bend high-pressure hoses or hit them with hard
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objects. Do not use any bent or cracked piping, tubes or
hoses. They may burst during use.
Always repair any loose or broken fuel hoses or oil hoses. If
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fuel or oil leaks, it may cause a fire.
PRECAUTIONS WITH HIGH PRESSURE OIL
Do not forget that the work equipment circuits are always
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under pressure.
Do not add oil, drain oil, or carry out maintenance or inspec-
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tion before completely releasing the internal pressure.
If oil is leaking under high pressure from small holes, it is dan-
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gerous if the jet of high-pressure oil hits your skin or enters
your eyes. Always wear safety glasses and thick gloves, and
use a piece of cardboard or a sheet of wood to check for oil
leakage.
If you are hit by a jet of high-pressure oil, consult a doctor
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immediately for medical attention.
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE AT
HIGH TEMPERATURE OR HIGH PRESSURE
Immediately after stopping operations, the engine cooling
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water and oil at all parts is at high temperature and under high
pressure.
In this condition, if the cap is removed, or the oil or water are
PRECAUTIONS FOR MAINTENANCE
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