MAINTENANCE BASICS
7-5
LUBRICANTS AND OPERATING AGENTS
DRAINING HOT LUBRICANTS AND FLUIDS
There is danger of scalding, when you drain off hot oils or hot
coolant and remove the corresponding filters immediately after
you have switched off the engine. For this reason, wait until the
engine has cooled down to approx. 60° C, before you start to
perform maintenance work.
Do not remove oils when the engine is cold.
CHECKING THE OIL LEVEL AND CHANGING OIL
Check the oil level and change the oil and oil filter in a dust-free
place to avoid contamination of service fluids by undesired ma-
terial.
After an oil change or oil filter change, check the oil and oil filter
for an unusual high number of metal parts or other undesired
material. In case you detect an unusual high contamination, in-
form your responsible Komatsu dealer.
CHANGING FILTERS
Filters avoid introduction of undesired material into the individual
cycles and the equipment where they may cause malfunctions.
• Regularly replace all filters. For details refer to "Maintenance
Schedule" for the proper interval.
• Replace the filters more often, if you work under difficult con-
ditions, depending on the oil and fuel that you use (e.g. high
sulphur content).
• Do not try to clean filter cartridges for re-use. Always replace
used filter cartridges by new ones.
• Do not open the packages containing the spare filters unless
you will mount them immediately.
• Always use genuine Komatsu filters.
REFUELLING AND TOPPING OFF OIL
Always refuel and top off oil in a sufficiently ventilated place. If
the machine is equipped with a fuel strainer in the tank filler
neck, do not remove the fuel strainer when refuelling. After refu-
elling or topping up of oil, close the filler openings again.
Spilled fuel or oil involve danger of slipping and fire. For this rea-
son, immediately remove any spilled fuel or oil.
Do not let oil or fuel seep into soil or water. Dispose of oil and fu-
el according to applicable environmental regulations.
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