Active ST32 Series User Manual page 29

ST32 - ST37 ENGLISH
7. PERIODIC MAINTENANCE
Periodically check that all brushcutter screws are in place and tight. Replace
damaged, worn, cracked and uneven blades. Always check that the nylon
wire head or blade is fitted correctly, and that the screw securing the blade
is properly tightened.
AIR FILTER
Fig.20 -
- Check the air filter periodically depending on the working conditions.
- Remove cover
- Remove filter
- Use compressed air only
- Do not damage the filter with tools or wire brushes
- Do not wash the filter with water, petrol or liquids
- Do not oil the paper
- Replace the filter if damaged.
FUEL FILTER
Fig.21 - For cleaning or replacement, remove the cap(1) from the tank and
pull out the filter(2)using a hook(1)or long-nose pliers. Periodically check the
condition of the filter (2); if it is excessively dirty, replace it.
ENGINE
To prevent the engine from overheating, regularly remove dust and dirt from
the slots, cylinder cover and cylinder fins, using a brush or compressed air.
SPARK PLUG
Fig.22 - Remove and clean the spark plug periodically (at least every 50
hours) and adjust the electrode gap (0.5 - 0.6 mm).
Replace the spark plug if excessively encrusted and worn and in any case
every 100 operating hours. In the event of excessive fouling, check the
carburetor setting, the mixture oil percentage and make sure that the oil is of
good quality and of the type for 2-stroke engines.
Type of spark plug supplied: ACTIVE® RAX 80 (Art. No. 021816).
BEVEL GEAR
Fig.23 - Every 50 hours of operation, add specific grease through hole(A) in
the gearbox. ACTIVE grease ref.21230 is recommended.
DISC
Always check the general condition of the blade. Replace the blade as soon
as cracks or breaks appear.
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