Komatsu Utility 76243, Operation & Maintenance Manual

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PRECAUTIONS FOR MAINTENANCE
SAFETY
2-34
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.
PRECAUTIONS WHEN USING HAMMER
When using a hammer, pins may fly out or metal particles may
be scattered. This may lead to serious injury. Always do as
follows.
q
If hard metal parts such as pins, bucket teeth, cutting
edges, or bearings are hit with a hammer, there is a hazard
that pieces might be scattered and cause injury. Always
wear safety goggles and gloves.
q
When hitting pins or bucket teeth, there is a hazard that
broken pieces might be sent flying and injure people in the
surrounding area. Always check that there is no one in the
surrounding area.
q
There is a hazard that the pin hit with strong force may fly out and injure people in the surrounding area.
REPAIR WELDING
Welding operations must always be carried out by a qualified welder and in a place equipped with proper equip-
ment. There is a hazard of gas, fire, or electrocution when carrying out welding, so never allow any unqualified
personnel to carry out welding.
REMOVING BATTERY TERMINAL
When repairing the electrical system or when carrying out electrical welding, remove the negative (-) terminal of
the battery to prevent the flow of current.
PRECAUTIONS WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSION
q
Grease is pumped into the track tension adjustment sys-
tem under high pressure. If the specified procedure for
maintenance is not followed when making adjustment,
grease drain valve (1) may fly out and cause serious injury
or damage.
q
When loosening grease drain valve (1) to loosen track ten-
sion, never loosen it more than one turn. In doing so,
loosen the valve slowly.
q
Never put your face, hands, feet, or any other part of your
body directly in front of grease drain valve (1).