Komatsu PC450-8 Operation & Maintenance Manual page 276

OUTLINE OF SERVICE
ELECTRIC SYSTEM MAINTENANCE
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It is extremely dangerous if the electrical equipment becomes wet or the covering of the wiring is damaged.
This will cause an electrical short circuit and may lead to malfunction of the machine. Do not wash the inside of
the operator's cab with water. When washing the machine, be careful not to let water get into the electrical
components.
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Service relating to the electric system is checking fan belt tension, checking damage or wear to the fan belt
and checking battery fluid level.
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Never install any electric components other than those specified by Komatsu.
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External electro-magnetic interference may cause malfunction of the control system controller, before install-
ing a radio receiver or other wireless equipment, contact your Komatsu distributor.
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When working at the seashore, carefully clean the electric system to prevent corrosion.
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When installing electrical equipment, connect it to the special power source connector.
Do not connect the optional power source to the fuse, starting switch, or battery relay.
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MAINTENANCE
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