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English---19
115391527 Rev. 4 5/15/12
MAINTENANCE
Air filter
The air filter must be regularly cleaned to
remove dust and dirt in order to avoid:
S Carbur etor malfunctions
S Starting problems
S Loss of engine power
S Unnecess ary wear to engine parts
S Ex cessive fuel cons umption
Clean thefilter every 25 hours,or more
regularly if condit ions are exceptionally
dusty.
Cleaning the air filter
Remove the air filter cover and take out the
filter. Wash it clean in warm , soapy water.
Rinse thoroughly. Ensure that the filter is dry
before refit ting it.
An air filter that has been in usefor a long
time cannotbe cleaned completely. The
filter must therefore be replaced with a new
one at regular intervals. A damaged air
filter must always be replaced.
Maintenance schedule
Below you will find some general mainte-
nance instructi o ns.
Daily maintenance
S Check throttle trigger and throttle trigger
lockout function.
S Check that the stop switch works
correctly.
S Check that there are no fuel leaks from
the engine, tank or fuel lines.
S Check that the cutter does not rotate
when the engine is idling.
S Clean the outside of the machine.
S Check that the harness is not damaged.
S Check that the blade guard is not dam-
aged or cracked.
S Replace the blade guard if it is exposed to
impact or is cracked.
S A non--balanced trimmer head induces
heavy vibrations that m ay damage the
machine.
S Check that nuts and scr ews are tight.
S Check that the trimmer head is tight.
Weekly maintenance
S Check the starter and st arter cord.
S Clean the carburetor area.
S Clean the outside of the spark plug. Re-
move it and check the electrode gap. Ad-
just the gap to 0.024″ (0.6 mm), or
replacethe spark plug. Use resist or spark
plug Champion RCJ--8Y or equivalent.
S Clean the cooling fins on the cy linder and
check that the air intakenear the st arter
is not block ed.
S Clean the air filter.
Monthly maintenance
S Clean the fuel tank.
S Clean the outside of the carburetor and
the space around it.
S Clean the fan and theareaaroundit.
S Check fuel lines for cr acks or other dam-
age. Changeif necessary.
S Change the fuel filter in fuel tank.
S Check the clutc h, clutch springs and the
clutch drum for wear. Replace if neces-
sary.
S Check electrical wires and connect ions.
S Replacethespark plug. Use resistor
spark plug Champion RCJ--8Y or equiva-
lent.
S Change the air filter.
Bevel gear
The bevelgear is filled withthe right quan-
tity of grease at the factory. However, be-
fore using the machine you should check
that the bevel gear is filled three--quarters
full with grease.
The grease in the bevel gear does not nor-
mally need to be changed except if repairs
are car ried out.