Laski FZ 500 H, Operating Instructions Manual

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Service life of the battery installed in the machine is rather limited. It is usually 3-4
years and after this period the battery should be replaced by a new one.
Oil change
The first oil change after 100 working hours and next changes every 100 hrs. Change the oil
always when the engine is turned off and still warm. Discharge the used oil into a bin through
the drain valve on the right side of
the machine. Having discharged the whole volume close the valve and fill new oil of proper
viscosity through the filler neck and then screw up the filler plug. In case of any failure in the
lubrication system the engine stops.
Oil filter element
Exchange every 200 working hours.
Air filter
The air filter with two filter elements provides maximum protection against mechanic impurities
and keeps continuous air flow into the fuel system. Remove the filter cap and unscrew the
locking nut and remove the filter element.
Check the air pre-cleaner every 25 working hrs as follows:
a) Remove the pre-cleaner carefully from the paper element and clean it in the warm water
with a non-foamy detergent.
b) Rinse the element with the water, press the water out and dry it up. Put the cleaned
element into the body, tighten up the nut and fit the cap again. In case of heavy fouling
check up the element more frequently.
Check up the paper element every 10 working hours. If fouled, change the element
immediately. Never oil the element and never clean it with paraffin or similar detergents.
Valves
The structure of valves and especially of hydraulic tappets minimises operating noises and
removes any further valves adjustment.
Ignition
The electromagnetic ignition system requires no adjustment.The spark plugs should be
checked every 100 hrs. This check consists in cleaning electrodes and setting the spark plug
gap to 1,02 mm. The spark plugs should be changed every 300 hrs.