Preparing To Work - Stiga Chain-saw Operator's Manual

PREPARING TO WORK

5. PREPARING TO WORK
CHECKING THE MACHINE
Before starting work please:
– 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 the protection devices are well fas-
tened and working efficiently;
– check that the handgrips are well fastened;
– check that the chain brake is working effi-
ciently.
PREPARING THE FUEL
This machine is fitted with a two-stroke engine
which requires a mixture of petrol and lubricating
oil.
IMPORTANT
Using petrol alone will dam-
age the motor and will cause for invalidation of
the warranty.
IMPORTANT
Only use quality fuels and
oils to maintain high performance and guarantee
the duration of the mechanical parts over time.
• Petrol characteristics
Only use unleaded petrol with a fuel grade of at
least 90 N.O.
IMPORTANT
create deposits in the container if preserved for
more than 2 months. Always use fresh petrol!
• Oil characteristics
Only use top quality synthetic oil specifically for
two-stroke engines.
Your dealer can provide you with oils which have
been specifically developed for this type of
engine, and which are capable of guaranteeing a
high level of protection.
The use of these oils makes it possible to pre-
pare a 2% mixture, consisting in 1 part oil to 50
parts petrol.
In the event that no specific oil is available, it is
Unleaded petrol tends to
possible to use a mineral lubricating oil for
engines (class FA or FB), where in this case the
mixture must be 4%, i.e. 1 part oil and 25 parts
petrol.
• Preparation and preservation of the fuel
mixture
DANGER!
!
Petrol and the fuel mixture are highly inflam-
mable!
– Keep the petrol and fuel mixture in homolo-
gated fuel containers, in safe place, away
from any flames or heat sources.
– Never leave the containers within the reach
of children.
– Never smoke whilst preparing the mixture
and avoid inhaling the petrol fumes.
The chart indicates the amount of petrol and oil
to use to prepare the fuel mixture according to
the type of oil used.
Petrol Synthetic oil
2-stroke
litres litres
1 0,02
2 0,04
3 0,06
5 0,10
10 0,20
To prepare the fuel mixture:
– Place about half the amount of petrol in a
homologated tank
– Add all the oil, according to the chart.
– Add the rest of the petrol.
– Close the top and shake well.
IMPORTANT
age. Do not prepare excessive amounts of the
fuel mixture to avoid deposits from forming.
IMPORTANT
Keep the petrol and fuel mix-
ture containers separate and easily identifiable to
avoid the mistake of using one in place of the
other.
EN
Mineral oil
Class FA - FB
cm 3 litres
2,0 0,04
40 0,08
60 0,12
100 0,20
200 0,40
The fuel mixture tends to
7
cm 3
40
80
120
200
400