GB
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Operating Instruction
strikes a solid object it could break or become worn; if it
gets tangled in a fence it could break abruptly.
In any case, cutting around pavements, foundations,
walls, etc. can cause greater wear than normal in the line.
• Cutting round trees
(Fig. 12)
Walk round the tree from left to right, approaching the
trunks slowly so as not to strike the tree with the line and
keeping the cutting line head tilted forward slightly.
Remember that the nylon line could lop or damage small
shrubs and that the impact of the nylon line against the
trunk of bushes or trees with soft bark could seriously
damage the plant.
• Adjusting line length when working
(Fig. 13)
This machine is fitted with a “Tap & Go” head.
To release more line, tap the cutting line head against
the round with the engine at top speed: the line will be
released automatically and the knife cut off the excess
length.
END OF OPERATIONS
When you have finished your work:
-
Switch off the engine as indicated above (Chap. 6).
-
Wait for the cutting device to stop and fit the blade
guard.
9. MAINTENANCE AND STORAGE
Correct maintenance is essential to maintain the original
efficiency and safety of the machine over time.
WARNING!
During maintenance operations:
-
Remove the spark plug cap.
-
Wait until the engine is sufficiently cold.
-
Use protective gloves when handling the blades.
-
Keep the blade protection device on, except when
intervening directly on the blade.
-
Never dispose of oils, fuel or other polluting mate
-
rials in unauthorised places.
CYLINDER AND SILENCER
To reduce fire risks, periodically clean the cylinder flaps
with compressed air and clear the silencer area to get rid
of sawdust, branches, leaves or other debris.
STARTING SYSTEM
To avoid overheating and damage to the engine, always
keep the cooling air vents clean and free of sawdust
and debris.
The starter rope must be replaced as soon as it shows
signs of wear.
NUTS AND SCREWS
Periodically check that all the nuts and screws are se-
curely tightened and the handgrips are tightly fastened.
CLEANING THE AIR FILTER
(Fig. 14)
IMPORTANT:
Cleaning the air filter is essential to guar
-
antee the efficiency and duration of the machine. Do not
work with a damaged filter or without a filter, as this could
permanently damage the engine.
It must be cleaned after every 8-10 working hours.
Clean the filter as follows:
-
Loosen the knob (3), remove the cover (1) and the
filter element (2).
-
Wash the filter element (2) with soap and water. Do not
use petrol or other solvents.
-
Leave the filter to dry in the open air.
-
Fit the filter element (2) and the cover (1) back on,
tightening the knob (3) again.
CHECKING THE SPARK PLUG
(Fig. 15)
Periodically remove and clean the spark plug using a
metal brush to get rid of any deposits.
Check and reset the correct distance between the elec-
trodes.
Replace the spark plug and fasten it firmly using the
supplied wrench.
The spark plug must be replaced with one with the same
characteristics whenever the electrodes have burnt or the
insulation has worn, and in any case every 100 working
hours.
TUNING THE CARBURETTOR
The carburettor is tuned by the manufacturer to achieve
maximum performance in all situations, with a minimum
emission of toxic gas in compliance with the regulations
in force.
In the case of poor performance contact your Dealer for
a check of the carburetion and engine.
• Tuning minimum speed
WARNING!
The cutting device must not move
when the engine is running idle. If the cutting device
moves when the engine is running idle, contact your
dealer to correctly regulate the engine.
ANGLE TRANSMISSION
(Fig. 16)
Lubricate with lithium-based grease.
Remove the screw (1) and put in the grease, turning the
shaft manually until grease emerges, then replace the
screw (1).
SHARPENING THE 3 POINT BLADE
(Fig. 17)
WARNING!
Use protective gloves. If sharpening
is done without removing the blade, disconnect the
spark plug cap.
Sharpening must be done taking account of the type of
blade and cutting edges, using a flat file and working all
the points equally.
The references for correct sharpening are given in Fig. 17:
A = Incorrect sharpening
B = Sharpening limits
C = Incorrect and unequal angles
It is important to retain the correct balance after sharp-
ening.
3 point blades can be used from both sides. When one
side of the points is worn, the blade can be turned and
the other side used.
GB-10
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