Stiga SP 375 Manual De Instrucciones página 21

PREPARING TO WORK
WARNING!
Always close the fuel tank
cap firmly.
WARNING!
Immediately clean all tra-
ces of fuel which may have dripped on the
machine or the ground and do not start the
engine until the petrol fumes have dissipated.
3. CHAIN LUBRICANT
IMPORTANT
Only use special oil for chain
saws or adhesive oil for chain saws. Do not use oil
containing impurities so as not to block the oil filter
and to prevent irreparable damage to the oil pump.
IMPORTANT
The special oil for lubricating
the chain is biodegradable. Use of a mineral oil or
engine oil causes serious damage to the environ-
ment.
It is essential that you use good quality oil to lu-
bricate the cutting parts effectively. Used or poor
quality oil does not guarantee good lubrication and
reduces the duration of the chain and bar.
It is always worth topping up the oil tank complete ly
(using a funnel) every time you refuel. Since the oil
tank capacity is enough to guarantee that the fuel
runs out first, you will avoid the risk of operating the
machine without lubricant.
4. CHECKING THE MACHINE
Before starting work please:
– fill the relevant tanks with fuel and oil;
– check that all the screws on the machine and the
bar are tightly fastened;
– check that the chain is sharp and there are no
signs of any damage;
– check that the air filter is clean;
– check that handgrips and protection devices
are clean and dry, correctly mounted and well
fastened to the machine;
– check that the handgrips are well fastened;
– check that the chain brake is working efciently;
– check the chain tension;
– checking functional of the clutch: Before each
use, confirm that there is no chain movement
when the chain saw running at idling speed.
5. CHECKING THE CHAIN TENSION
WARNING!
Perform all operations
with the engine off.
The tension is correct when the drive links do not
slip out of the chain guides if you hold the chain in
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the middle of the bar (Fig. 5).
• Machines with standard chain tension
– Loosen the cover nuts, using the supplied
– Turn the chain tension adjuster screw (4) to ad-
– Raise the bar and tighten the guard nuts
• Machines with quick chain tension
– Loosen the handle (11) (Fig. 4A).
– Turn the ring-nut (15) to obtain the desired chain
– Raise the bar and tighten the handle (11)
6. CHECKING THE CHAIN BRAKE
This machine is equipped with a safety brake sy-
stem.
In the event of a kickback while working, following
an irregular contact of the tip of the bar, with a bru-
sque 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 disengage 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 efciently, proceed
as follows:
– Make sure you are holding the machine firmly
– Use the accelerator level to keep the chain
– When the chain has stopped, immediately re-
– Release the brake.
the chain brake does not function correctly
and have it inspected by your dealer.
adjuster
wrench (Fig. 4).
just the chain tension (Fig. 4).
securely using the wrench (Fig. 5).
adjuster
(SP 375Q, SP 405Q, C 38 T, C 41 T)
tension level (Fig. 5A).
securely (Fig. 5A).
with both hands when you start the engine
moving, push the brake lever forwards using
the back of you left hand; the chain must stop
immediately.
lease the accelerator lever.
WARNING!
Do not use the machine if
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