Zgonc 3910107972, Translation Of The Original Instruction Manual

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GB | 47
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WARNING
The chain brake does reduce the risk of injury in the
event of a kickback but cannot provide the intend-
ed protection if the saw is used carelessly. Always
check the chain brake before using your saw and
check regularly when working. (For details on per-
forming a test on the mechanical brake, see below).
4. TESTING THE CHAIN BRAKE
• The chain brake is RELEASED (the chain can
move) when the BRAKE LEVER (5) IS PULLED
BACKWARDS (fig. 11 / item 2) AND APPLIED as
shown in fig. 11.
• The chain brake is APPLIED (the chain is locked)
when the brake lever (5) is pulled forwards and vis-
ible in the mechanism (shown in fig. 10). The chain
should then not be able to move (fig. 30).
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WARNING
The brake lever should engage in both positions. If
you feel a strong resistance or the lever cannot be
moved, do not use your saw. Take it to a professional
service centre for repair immediately.
5. FUEL AND OIL - RECOMMENDED FUELS
For optimal results, use normal unleaded fuel blend-
ed with special 2-stroke oil. Prepare the mixture as
specified in the fuel mixing table.
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CAUTION
Do not use a fuel mixture that has been stored for
longer than 90 days.
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CAUTION
Do not use 2-stroke oil product with a mixing ratio of
100:1. Insufficient oil will damage the engine and, in
this case, void the warranty for the motor.
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CAUTION
Only use containers designed and approved for
transporting and storing fuels. Fill the correct quan-
tities of petrol and 2-stroke oil into the mixing con-
tainer supplied (see the scale printed on the contain-
er). Then sake the container well.
Recommended fuels
Some conventional gasolines are blended with ingre-
dients such as alcohol or ether compounds to meet
the standards for clean exhaust gases. The engine
runs satisfactorily with all grades of gasoline, but for
the purpose of self-propulsion with oxygenated gaso-
lines, it is best to use regular gasoline.
At best, use regular unleaded gasoline.
• Keep the bar’s tip pointing upwards and turn the
chain tensioning wheel (fig. 9 / item 3) CLOCK -
WISE to increase the chain’s tension. If you turn
the chain tensioning wheel ANTICLOCKWISE , the
chain tension is reduced. Ensure that the chain is
tight around the bar (fig. 4 / item X3).
• After making the adjustments, tighten the chain
tensioning wheel while the bar’s tip is pointing up-
wards (fig. 9 / item 18). The chain is tensioned cor -
rectly if it is tight and can be pulled around the bar
when the chain brake (5) is released.
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WARNING
Always wear high strength gloves when handling the
saw chain or adjusting it.
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If the chain can moves around the bar with difficul -
ty or is blocked, it is tensioned too tightly. Perform the
following fine adjustments:
A Loosen the bar fastening wheel (fig. 9 / item 18) by
turning 1/2 a turn ANTICLOCKWISE . Then reduce
the chain tension by turning the chain tensioning
wheel slowly (fig. 9 / item 3) ANTICLOCKWISE
and then pull the chain forwards and backwards
on the bar (fig. 30). Continue this procedure until
the chain can move freely but is still tight (fig. 4 /
item X2). Increase the chain tension by turning the
chain tensioning wheel CLOCKWISE.
B When the saw chain tension is adjusted correct-
ly, hold the bar with the tip pointing upwards and
tighten the bar fastening wheel (fig. 9 / item 18).
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A new saw chain stretches so that it has to be
re-adjusted after around 5 sawing procedures. This
is normal for new saw chains and the interval for fu-
ture adjustments increases after a short time.
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If the saw chain is tensioned TOO LOOSE or TOO
TIGHT , the drive wheel, the bar, the chain and the
crankshaft bearing wear out quicker. Fig. 4 / item X2
shows the correct tension (when cold) and fig. 4 /
item X3 shows the tension (when cold). Fig. 4 / item
X1 shows a chain that is too loose.
3. MECHANICAL TEST OF THE CHAIN BRAKE
Your chainsaw is equipped with a chain brake that
reduces the risk of injury due to a kickback. The
brake is activated if pressure is exerted on the brake
lever as soon as the operator’s hand hits the lever,
e.g. during a kickback. If the brake is activated, the
chain stops abruptly.