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CAUTION: Before doing any work on the brush cutter, always stop the engine and pull the plug cap off the
spark plug (see “checking the spark plug”).
Always wear protective gloves!
To ensure a long service life and to avoid any damage to the equipment, the following servicing
operations should be performed at regular intervals.
Daily checkup and maintenance
– Before operation, check the machine for loose screws or missing parts. Pay particular attention to the
tightness of the cutter blade.
– Before operation, always check for clogging of the cooling air passage and the cylinder fins.
Clean them if necessary.
– Perform the following work daily after use:
• Clean the brush cutter externally and inspect for damage.
• Clean the air filter. When working under extremely dusty conditions, clean the filter the several
times a day.
• Check the blade for damage and make sure it is firmly mounted.
• Check that there is sufficient difference between idling and engagement speed to ensure that the
cutting tool is at a standstill while the engine is idling (if necessary reduce idling speed).
If under idling conditions the tool should still continue to run, consult your nearest Authorized
Service Agent.
– Check the functioning of the I-O switch, the lock-off lever, the throttle lever.
REPLACEMENT OF ENGINE OIL
Deteriorated engine oil will shorten the life of the sliding and rotating parts to a great extent. Be sure to check
the period and quantity of replacement.
ATTENTION: In general, the engine main unit and engine oil still remain hot just after the engine is
stopped. In replacement of oil, confirm that the engine main unit and engine oil are
sufficiently cooled down. Otherwise, there may remain a risk of scald.
Note: If the oil filled above the limit, it may be contaminated or may catch fire with white smoke.
Interval of replacement: Initially, every 20 operating hours, and subsequently every 50 operating hours
Recommended oil: SAE10W-30 oil of API Classification SF Class or higher (4-stroke engine oil for
automobile)
In replacement, perform the following procedure.
1) Confirm that the tank cap is tightened securely.
2) Detach the oil gauge.
Keep the oil gauge free from dust or dirt.
SERVICING INSTRUCTIONS
Fuel tank cap
Oil gauge