Stihl MSA 220.0 T Instruction Manual page 35

4 Safety Precautions
– The chain brake is operating properly.
– The controls function properly and have not
been modified.
– The chain lubrication is operating properly.
– Wear marks on the chain sprocket are not
deeper than 0.5 mm.
– A combination of guide bar and saw chain rec‐
ommended in this User Manual is mounted.
– The guide bar and saw chain are properly
mounted.
– The saw chain is properly tensioned.
– Only original STIHL accessories designed for
this chainsaw model are fitted.
– The accessories are correctly attached.
– The oil tank cap is closed.
WARNING
■ If not in safe condition, components may no
longer operate correctly and safety devices
may be disabled. This may result in serous or
fatal injury to people.
► Work only with an undamaged chainsaw.
► If the chainsaw is dirty: Clean the chainsaw.
► Work only with an undamaged 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.
► Close the oil tank cap.
► 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,
21.3.
– Bar rails are free from burrs.
– Bar groove is not pinched or splayed.
0458-007-9621-B
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.
4.6.4 Battery
The battery is in safe condition when the follow‐
ing conditions are met:
– The battery is not damaged.
– The battery is clean and dry.
– The battery is working and has not been modi‐
fied.
WARNING
■ The battery cannot function safely if it is not in
safe condition. There is a risk of serious injury
to persons.
► Use an undamaged and functioning battery.
► Do not charge a damaged or defective bat‐
tery.
► If the battery is dirty or wet: clean the bat‐
tery and allow it to dry.
► Do not modify the battery.
► Do not insert objects into the apertures in
the battery.
► Never connect the battery terminals to met‐
allic objects and cause a short circuit.
► Do not open the battery.
► Replace worn or damaged warning signs.
English
35