WARNING
■ If not in safe condition, components may no
longer operate correctly, safety devices may
be disabled and fuel leakage may occur. This
may result in serous or fatal injury to people.
►
Work only with an undamaged chainsaw.
► If fuel is leaking from the chainsaw: Do not
use the chainsaw and contact a STIHL
dealer for assistance.
►
Close the fuel tank and oil tank caps.
► If the chainsaw is dirty: Clean the chainsaw.
► Work only with property fitted and undam‐
aged chain catcher.
► Never modify your chainsaw. Exception:
Mounting a combination of guide bar and
saw chain recommended in this User Man‐
ual.
►
If the controls do not function properly: Do
not use your chainsaw.
► Only fit original STIHL accessories
designed for this chainsaw model.
► Mount the guide bar and saw chain as
described in this User Manual.
► Attach accessories as described in this
User Manual or in the User Manual for the
accessories.
►
Never insert objects in the chainsaw’s
openings.
► Replace worn or damaged labels.
► If you have any doubts, be sure to consult a
STIHL dealer.
4.6.2 Guide Bar
The guide bar is in a safe condition if the follow‐
ing points are observed:
–
Guide bar is not damaged.
–
Guide bar is not deformed.
–
The minimum groove depth is maintained,
19.3.
–
Bar rails are free from burrs.
–
Bar groove is not pinched or splayed.
WARNING
■
If the guide bar is not in a safe condition, it can
no longer support and guide the saw chain
properly. The rotating saw chain can jump off
the guide bar. This can result in serious or
fatal injuries.
►
Work only with an undamaged guide bar.
► If the groove depth is less than the mini‐
mum depth: Mount a new guide bar.
► Deburr the guide bar every week.
► If you have any queries: Contact your
STIHL servicing dealer.
4.6.3 Saw Chain
The saw chain is in a safe condition if the follow‐
ing points are observed:
–
Chain is not damaged.
–
Chain is properly sharpened.
–
The service marks on the cutters are still visi‐
ble.
WARNING
■ If components do not comply with safety
requirements, they will no longer function
properly and safety devices may be rendered
inoperative. This can result in serious or fatal
injuries.
►
Work only with an undamaged saw chain.
► Sharpen the chain properly.
► If you have any queries: Contact your
STIHL servicing dealer for assistance.
4.7 Fuel Mixture and Refueling
WARNING
■ This chainsaw requires a fuel mixture of gaso‐
line and two-stroke engine oil. Mixed fuel and
gasoline are extremely flammable. If fuel mix‐
ture or gasoline make contact with open fire or
hot objects, they can cause a fire or explo‐
sions. Persons may be seriously or fatally
injured and property may be damaged.
►
Protect fuel mixture and gasoline from heat
and fire.
► Do not spill mixed fuel or gasoline.
► If fuel has been spilled: Wipe up fuel with a
cloth and do not attempt to start engine until
all parts of the chainsaw are dry.
►
Do not smoke.
► Never refuel near a fire.
► Shut off the engine and allow it to cool
down before refueling.
► Start the engine at least 3 meters from the
fueling spot, outdoors only.
■ Inhaling fuel fumes and gasoline fumes can
have toxic effects.
► Avoid inhaling fuel fumes or gasoline
fumes.
► Refuel in a well-ventilated location.
■ The chainsaw will become hot during opera‐
tion, or in a very hot environment. Depending
on the type of fuel, altitude, ambient tempera‐
ture and the temperature of the saw, the fuel
expands and can cause a build-up of pressure
in the tank. Fuel may spray out and ignite
when the fuel tank cap is opened. The user
may be seriously injured and property damage
may occur.
English 4 Safety Precautions
6 0458-200-0121-B
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