Komatsu PC18MR-3, Operation & Maintenance Manual

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TROUBLESHOOTING
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183
3.7.4 PRECAUTIONS TO BE TAKEN WHEN
WORKING IN PARTICULAR CONDI-
TIONS
q
When carrying out digging operations in water, if water gets on
the pins of the work equipment, always add grease to the buck-
et articulations (1), (2), (3), (4) and (5) before work.
q
When carrying out heavy duty digging and deep digging opera-
tions, always add grease to the bucket articulations (1), (2), (3),
(4) and (5) (total: 5 points) before work.
After greasing, operate the bucket more than once, then add
grease again.
3.7.5 IF THE BATTERY IS DOWN
WARNING
q
It is dangerous to charge the battery when it is installed in
the machine. Always remove it before recharge.
q
Before any operation related to the battery, stop the engine,
wait at least one minute, and afterwards turn the battery
main switch to OFF and extract the specific key.
q
The battery produces hydrogen, which may explode. Do
not smoke and avoid producing sparks near the battery.
q
The battery electrolyte is made of diluted sulphuric acid
that may corrode clothes and even the skin; in case of con-
tact with this fluid, immediately rinse the involved part with
plenty of water. If the acid gets into the eyes, immediately
rinse with plenty of water and consult a doctor without de-
lay.
q
When working on the battery, always wear goggles and
rubber gloves.
q
When removing the battery, disconnect the earth cable (-)
first. When installing the battery, connect the positive ter-
minal (+) first.
If a tool touches the positive terminal and the frame of the
machine at the same time, sparks may be generated, thus
causing an explosion hazard.
q
Carefully tighten the connection terminals, since false con-
tacts may generate sparks with consequent risk of explo-
sion.
q
The accumulation of oxide around the terminals causes the
battery to discharge. Clean the terminals carefully and cov-
er them with a thin film of grease before installation.
RYA02950