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Alpina C 2.0 ET Manual

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PREPARING TO WORK 7
EN
1. CHECKING THE MACHINE
WARNING! Make sure the machine is
not plugged into the mains socket.
Before starting work please:
– check that the mains frequency and voltage is
the same as the rating data on the “identication
plate” (see chap. 1 - 10.8);
– ccheck that all the screws on the machine and
the bar are tightly fastened;
– check that the chain is tensioned correctly,
sharp and there are no signs of any damage;
– check that handgrips and protection devices
are clean and dry, correctly mounted and well
fastened to the machine;
– check that the chain brake is working eciently;
– check that the trigger switch and the safety
button should move freely without forcing and
return automatically and rapidly back to their
neutral position;
– check that the trigger switch must remain locked
until the safety button is pressed;
– make sure the cooling air vents are not clog ged
up with sawdust or debris;
– check that the power cable and extension lead
are not damaged;
– check that the chain’s oil level is not below the
«MIN» level mark and top up to 1 cm from the
rim of the ller if necessary.
2. CHECKING THE CHAIN TENSION
WARNING! Make sure the machine is
not plugged into the mains socket.
• MACHINES WITH STANDARD
CHAIN TENSION ADJUSTER
– Loosen the guard nut, using the wrench (Fig. 5).
– Turn the chain tension adjuster screw (4) to ad-
just the chain tension (Fig. 5).
– Raise the bar and tighten the guard nut securely
using the wrench (Fig. 6).
The tension is correct when the drive links do not
slip out of the chain guides if you hold the chain in
the middle of the bar (Fig. 7).
Loosen the brake by pressing both the switch
and the safety button. Using a screwdriver, run
the chain along the guides to check that it moves
smoothly.
• MACHINES WITH QUICK CHAIN TENSION
ADJUSTER
– Loosen the handle (11). (Fig. 5a).
– Turn the ring-nut (12) to obtain the desired chain
tension level (Fig. 5a).
– Raise the bar and tighten the handle (11)
securely (Fig. 6a).
The tension is correct when the drive links do not
slip out of the chain guides if you hold the chain in
the middle of the bar (Fig. 7).
Loosen the brake by pressing both the switch
and the safety button. Using a screwdriver, run
the chain along the guides to check that it moves
smoothly.
3. CHECKING THE CHAIN BRAKE
This machine is equipped with a double braking
system that intervenes in two situations:
a) When the switch lever is released, a brake
is automatically activated that slows and stops
chain movement, in order to prevent the risk of
injury should the chain continue to turn after it
has been switched o.
b) In the event of a kickback while working,
following an irregular contact of the tip of the
bar, with a brusque upward movement that
causes the hand to strike the front guard. In
this case, the brake blocks chain movement
and must be released manually in order to di-
sengage it.
This brake can be operated manually by pushing
the front guard forward. To release the brake, pull
the front guard towards the handgrip until you hear
a click.
To check that the brake works eciently, proceed
as follows:
– Start the engine by holding the front handgrip
and push the front hand guard forwards with
your thumb (towards the bar).
– When the brake is engaged, release the trigger
switch.
The chain must stop as soon as the brake is en-
gaged.
5. PREPARING TO WORK
… 12 …


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