24
CAUTION:
Before doing any work on the Brush cutter, always switch off the motor and detach the plug
cap from the spark plug (see “Checking the spark plug”). Always wear protective gloves.
CAUTION
: Never remove the recoil starter for yourself, which may cause an accident. It should be
asked to the Authorized Service Agent.
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 inspection and maintenance
1. Before operation, check the machine for loose screws or missing parts. Pay particular attention to the
tightness of the cutter blade or nylon cutting head.
2. Before operation, always check for clogging of the cooling air passage and the cylinder fins.
Clean them if necessary.
3. Perform the following maintenance operations 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 or the nylon cutting head 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.
4. Check the functioning of the I-O switch, the lock-off lever, the control lever, and the look button are all
functioning correctly.
Cleaning of air filter
1. Unscrew the screw anti-clockwise. (Fig.19A/Fig.19B)
2. Remove the air cleaner cover.
3. Remove the sponge element, wash it in lukewarm water and dry it completely.
4. After cleaning, put back the air cleaner cover and fasten it with screw.
NOTE: If there is excessive dust or dirt adhering to the air cleaner, clean it every day. A clogged air
cleaner may make it difficult or impossible to start the engine or may increase the engine rotational speed.
Fig.19A Fig.19B
Checking the spark plug
1. Only use the supplied universal wrench to remove or to install the spark plug.
2. The gap between the two electrodes of the spark plug should be 0.5 – 0.7 mm. If the gap is too wide or
too narrow, adjust it. If the spark plug is clogged with carton or fouled, clean it thoroughly or replace
it.(Fig.20)
CAUTION:
Never touch the spark plug connector while the engine is running (danger of high voltage
electric shock).
