E. START-UP AND STOPPING
Start-up: grip both handles firmly, release the chain
brake lever whilst ensuring hand is still on front
handle, press and maintain the switch block (fig E1)
pressed in, then press the switch (fig E2) (at this
point the switch block can be released).
Stopping: The machine will stop whenever the
switch is released. In the case where the machine
does not stop, activate the chain brake, disconnect
the cable from the main line socket and take the
machine to the Authorised Service Centre.
F. BAR AND CHAIN LUBRICATION
ATTENTION! Insufficient lubrication will provoke
chain breaking and can cause serious and even
fatal injury.
Bar and chain lubrication is performed by an
automatic pump.
Refer to “Maintenance & Storage” for indications on
ensuring that the chain oil is sufficiently distributed.
Choice of chain oil
Always use new oil only (special type for chains)
with adequate viscosity: the oil must adhere well
and guarantee good running properties in both
winter and summer. If chain oil is not available, EP
90 transmission oil can be used.
Never use waste oil because this is this harmful to
health, the machine and the environment. Make
sure that the oil is suitable for the temperature of the
environment where the tool will be used: For
temperatures under 0°C certain oils become thicker,
overloading the pump and causing damage.
Contact your Authorised Service Centre for advice
on oil choice.
Filling oil tank
Unscrew the oil tank cap, and fill the tank taking
care not to spill any oil (if this occurs clean the
machine carefully) and then screw the cap back on
tightly.
G. MAINTENANCE AND STORAGE
Before performing any maintenance or cleaning,
remove the plug from the mains.
ATTENTION! In cases where work environments are
particularly dirty or dusty, the operations described
must be performed more frequently than mentioned
in the instructions.
Before each use
Check that the chain oil pump functions correctly:
direct the bar towards a clear surface at a distance
of about 20 centimetres; after the machine has run
for about a minute, the surface should show clear
traces of oil (fig.1).
Check that excessive strength is not needed for
activating and deactivating the chain brake. Also
check that it is not activated too easily and that it is
not blocked. Then check chain brake function as
follows: release the chain brake, grip the machine
correctly and start up the machine, activate the
chain brake by pushing the front hand guard forward
with the left wrist or arm but without removing the
hand from the handle (fig.2). If the chain brake is
working correctly, the chain should be stopped
immediately.
Check that the chain is sharpened correctly, in good
working condition and that the tension is correct. If
the chain is irregularly worn, or if the cutting teeth
are only 3 mm long, the chain must be replaced
(fig.3).
Clean the air vents regularly to prevent motor
overheating (fig 4).
Check that the switch and switch block function
correctly (to be performed with the chain brake
released): press the switch and the switch block and
ensure that they return to idle position as soon as
they are released; check that it is impossible to
press the switch without activating the switch block.
Check that the chain catcher and the right hand
guard are in correct condition without any visible
faults such as damaged material.
Every 2-3 hours of use
Check the bar condition, if necessary clean the
lubrication holes (fig.5) and the guide grooves (fig.6)
carefully; If the groove is worn or shows signs of deep
notching, it must be replaced. Clean the drive sprocket
regularly and check that it has not been subject to
excess wear (fig.7). Lubricate the nose sprocket with
bearing grease through the hole shown in the
illustration (fig.8).
Chain sharpening (When necessary)
If the chain does not cut correctly, or requires hard bar
pressure against the wood, and if the sawdust is very
fine, this is a sign that it is not sharpened correctly. If
the cutting action produces no sawdust, this means the
cutting edge has been worn completely and the chain
is pulverising the wood during cutting. A well-
sharpened chain crosses through the wood without
effort or pressure and produces large long wood
shavings.
The cutting side of the chain is composed of the cutting
link (fig.9) with a cutting tooth (fig.10) and a cutting limit
gauge (fig.11). The difference between these
determines the cutting depth; a file guide and a 4mm
diameter round file are needed to obtain good
sharpening results; Follow the instructions below:
Once the chain has been mounted and the tension is
correctly adjusted, and the chain brake is activated,
position the file guide perpendicular to the bar as
shown in the illustration (fig.12), filing the cutting teeth
at the angle shown (fig.13), always working from the
interior towards the exterior, lessening the pressure
during the return stage (it is very important to follow the
instructions perfectly: excessive or insufficient
sharpening angles or an incorrect file diameter will
increase the risk of kickback.) To obtain higher
precision on side angles, it is advisable to position the
file so that it exceeds the upper cutter by about 0.5
mm. File all the teeth on one side first, then turn the
machine over and repeat the operation. Make sure
that after sharpening operations, all teeth are the same
length and that the height of the depth gauge is 0.6 mm
lower than the upper cutter: check the height using a
proper template and file (with a flat file) all protruding
parts, rounding off the front part of the depth gauge
(fig.14), paying attention to not file the kickback
protection tooth (fig.15)
Every 30 hours use.
Take the machine to the Authorised Service Centre for
general revision and control check on brake components.
Storage
Store the product in a cool dry place and out of reach
of children. Do not store outdoors.
ENGLISH - 6
