Komatsu WA500-6H, Operation & Maintenance Manual

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4.2 Outlines of service
Outline of electric system
Maintenance
4-10
WA500-6H – VEAM430100
Filters
z
Filters are extremely important safety parts. They prevent
impurities in the fuel and air circuits from entering important
equipment and causing problems.
Replace all filters periodically. For details, see the Operation
and Maintenance Manual.
However, when working in severe conditions, replace the fil-
ters at shorter intervals according to the oil and fuel (sulfur
content) being used.
z
Never try to clean the filters (cartridge type) and use them
again. Always replace with new filters.
z
When replacing oil filters, check if any metal particles are
affixed to the old filter. If any metal particles are found,
please contact your KOMATSU distributor.
z
Do not open packs of spare filters until just before they are to
be used.
z
Always use KOMATSU genuine filters.
4.2.2 Outline of electric system
z 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 malfunc-
tion 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.
z
Service relating to the electric system is checking fan belt
tension, checking damage or wear in the fan belt and check-
ing battery fluid level.
z
Never install any electric components other than those spec-
ified by KOMATSU.
z
External electro-magnetic interference may cause malfunc-
tion of the control system controller, so before installing a
radio receiver or other wireless equipment, please contact
your KOMATSU distributor.
z When working at the seashore, carefully clean the electric
system to prevent corrosion.
z The optional power source must never be connected to the
fuse, starting switch, or battery relay.