4 Safety Precautions
WARNING
■ If they are in an unsafe condition, parts of the mowing
head, mowing lines or polymer blades may come off and
be ejected at high speed. They may cause serious injury
to persons.
► Work only with an undamaged mowing head.
► If a PolyCut mowing head with polymer blades is used:
Never work with damaged polymer blades.
► Never use metal objects in place of the nylon mowing
lines or polymer blades.
► If you have any doubts, be sure to consult a STIHL
dealer.
4.6.4
Metal Cutting Attachment
The metal cutting attachment is in a safe condition if the
following points are observed:
– Metal cutting attachment and mounting hardware are
undamaged.
– Metal cutting attachment is not warped.
– Metal cutting attachment is properly mounted.
– Metal cutting attachment is correctly sharpened.
– Cutting edges of the metal cutting attachment have no
burrs.
WARNING
■ If it is not in an safe condition, parts of the metal cutting
attachment may come off and be thrown at high speed.
This can result in serious injuries.
► Never work with a damaged metal cutting attachment or
damaged mounting hardware.
► Sharpen the metal cutting attachment correctly.
► Deburr the cutting edges with a file.
► Have the metal cutting attachment balanced by a STIHL
servicing dealer.
► If you have any queries: Contact your STIHL servicing
dealer for assistance.
0458-709-9921-B
4.6.5
Battery
The battery is in safe condition when the following conditions
are met:
– The battery is not damaged.
– The battery is clean and dry.
– The battery is working and has not been modified.
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 battery.
► If the battery is dirty or wet: clean the battery 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 metallic objects
and cause a short circuit.
► Do not open the battery.
► Replace worn or damaged warning signs.
■ Fluid may leak from a damaged battery. If the fluid
contacts the skin or eyes, this may cause irritation.
► Avoid contact with the fluid.
► In the event of contact with the skin: wash the affected
areas with plenty of soap and water.
► In the event of contact with the eyes: rinse the eyes with
plenty of water for at least 15 minutes and seek medical
attention.
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