For maximum performance, to avoid the risk of blade thrust/
kickout and to extend the service life of the brush cutter,
always use blades with sharp teeth. A badly sharpened or
damaged blade increases the risk of an accident.
See the blade packaging for proper sharpening instructions.
Use a flat file to sharpen the blades. Sharpen all edges
evenly to keep the balance of the blade.
Never attempt to straighten a deformed blade so that it can
be reused.
Always discard a blade that is bent, twisted, cracked, broken
or damaged in any other way.
Dirty air filters reduce engine power, increase fuel
consumption, make starting difficult, cause carburettor
malfunctions and wear on engine parts.
1. Move the choke lever until it stops at the top. This
prevents debris from entering the carburettor when the
filter element is removed;
2. Loosen the bolts, remove and clean the air filter cover
(13);
3. Remove the filter element and blow it out with
compressed air until it is completely clean. If it does not
allow efficient cleaning or is damaged, replace it;
4. Fit the filter element and assemble the other
components in the reverse order of disassembly.
A dirty filter will restrict the air flow into the
carburettor, and this will affect the performance of
the brush cutter.
1. Empty the fuel tank (14);
2. Pull the fuel hose from inside the tank and remove the
filter;
3. Blow out the filter with compressed air until it is
completely clean. If it does not allow efficient cleaning
or is damaged, replace it.
To ensure proper engine operation, the spark plug should
be clean and with adequate gap between the electrodes.
There are several factors that can affect the operation of the
spark plug: incorrect carburettor adjustment and fuel
mixture, and dirty air filter. These factors cause particles
accumulations in the spark plug electrodes, which leads to
operating problems and difficult start-ups.
If the brush cutter is running low or shows difficulties in
starting, check the spark plug condition before making any
further inspections.
1. Remove the cap (12), unscrew the spark plug (12) with
the wrench supplied and check that it is clean. If it is
dirty, remove the soot with a brush;
2. If the spark plug is "wet", with excess fuel, place a clean
cloth over the spark plug hole and pull the recoil starter
several times without the spark plug installed;
3. Measure the distance between the electrodes with
appropriate tools. The distance should be between 0.6-
0.7 mm. If necessary, bend the electrode until enough
clearance is reached;
4. Install the spark plug with your hand to prevent damage
to the thread and tighten it to compress the sealing
washer, using the wrench provided;
5. If the spark plug does not produce any sparks, replace
it.
A loose spark plug may overheat and cause damage
to the engine.
Always use the type of spark plug recommended by
the manufacturer (VIVELA5510). The use of an
incorrect spark plug can damage the cylinder.
The brush cutter does not need constant or daily
lubrication, however you should periodically check the
grease in the clutch cone (11) and in the rotation shaft
gears (2), to ensure a longer service life.