Komatsu WA100M-7, Operation And Maintenance Manual

Page: 216 / 304

5.2 Basic maintenance guidelines
Maintenance
5-14
WA80M-7, WA100M-7 – VENAM03001
Filters
 Filters are extremely important safety components. They pre-
vent impurities in the fuel and air circuits from entering impor-
tant equipment and causing problems.
Replace all filters periodically. For details see: “Maintenance
schedule (5-25)”.
However, when working in rough conditions, replace the fil-
ters at shorter intervals according to the oil and fuel (sulphur
content) being used.
 Never try to clean filters (cartridge type) and use them again.
Always replace with new filters.
 When replacing oil filters, check if the old filter contains any
metal particles. If any metal particles are found, please con-
tact your Komatsu distributor.
 Do not open packs of spare filters until just before they are to
be used.
 Exclusively use Komatsu genuine filters.
Biodegradable hydraulic oil and lubricants
The use of biodegradable hydraulic oils and lubricants based on
synthetic esters with Komatsu machines is permitted. For infor-
mation on products cleared for use and best suited for your appli-
cation, please contact your Komatsu distributor.
5.2.2 Outlines of the electrical system
 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 malfunctions of the
machine. Do not wash the inside of the operator's cab with
water. When washing the machine, be careful not to let any
water enter the electrical components.
 The maintenance of the electrical system involves checking
fan belt tension, checking the fan belt for damage or wear,
and checking the battery fluid level.
 Never install any electric components other than those spec-
ified by Komatsu.
 External electro-magnetic interference may cause a malfunc-
tion of the system controller. Please contact your Komatsu
distributor before installing a radio receiver or other wireless
equipment.
 When working close to the sea, carefully clean the electrical
system to prevent corrosion.
 Never connect an external power source to the fuses, the
starting switch, or the battery relay.