Komatsu PC118MR-8, Operation And Maintenance Manual

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MAINTENANCE
GUIDE TO MAINTENANCE
4-9
STORING OIL AND FUEL 4
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Keep oil and fuel indoors to prevent any water, dirt, or other impurities from getting into them.
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When storing drums for a long period, position them on one side, so that the opening is lateral. This prevents
moisture from being sucked in through the drum filling opening. If drums have to be stored outside, cover them
with a waterproof sheet or take other measures to protect them.
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To prevent any change in quality during long-term storage, be sure to use the fluids following the first in - first
out (use the oldest oil or fuel first) method.
FILTERS 4
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Filters are very important components for safety. They prevent any impurities from getting into the oil, fuel, or
in the air circuits, thus avoiding problems to important components of the machine
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Periodically change all the filters. For further information, see the relevant Use and Maintenance manual.
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However, when working in extreme conditions, it is necessary to change the filters more frequently, depending
on the type of oil and fuel used (sulphur content).
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Do not attempt to clean the filters (type with cartridge) and reuse them. Always change them with new filters.
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When changing the oil filters, check if metal particles are present. If you find large quantities of metal particles,
contact your Komatsu distributor.
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Do not open the spare filter packages before using them.
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Always use Komatsu original spare parts.
NOTES ON THE MAINTENANCE OF THE ELECTRICAL SYSTEM 4
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If the cables are wet or their insulating material is damaged, the electrical system leaks and this may result in
malfunctions of the machine.
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The maintenance operations required for the electrical system are the following:
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Check of the alternator belt tension.
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Check of the alternator belt for damage or breakages.
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EBattery electrolyte level check.
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Do not remove or eliminate any electric component installed on the machine and do not install any electric
component with characteristics different from those specified and approved by Komatsu.
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Keep the electric system dry.
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When working on the seashore or on river or lake banks, protect the jack plugs from corrosion.
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External electromagnetic interference may cause a malfunction of the controller of the control system; before
installing a radio receiver or any other wireless tools, contact Komatsu distributor.
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Do not connect any optional device to the fuses, ignition switch, battery, relays, etc.; for the installation of any
optional equipment, contact your Komatsu distributor.
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If electric welds are necessary, turn the battery main switch to OFF and disconnect the alternator and the
KOMTRAX system control unit.
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