Stihl RMA 248 Instruction Manual page 27

4 Safety Precautions
WARNING
■ In unsafe condition, blade parts may come
loose and be expelled. This may result in seri‐
ous injury to people.
► Use an undamaged blade and attachments.
► Attach the blade correctly.
► Sharpen the blade correctly.
► If the minimum thickness or minimum width
is fallen below: replace the blade.
► Have the blade balanced by a STIHL spe‐
cialist dealer.
► If anything is unclear: consult a STIHL spe‐
cialist dealer.
4.6.3 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.
■ 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.
■ A damaged or defective battery may emit an
unusual odour, smoke or catch fire. This may
result in serious or fatal injury to people and
damage to property.
► If the battery emits an unusual odour or
smoke: do not use the battery and keep it
away from flammable materials.
0478-131-9861-B
► If the battery catches fire: try to extinguish
the battery using a fire extinguisher or
water.
4.7 Working
WARNING
■ In certain situations, the user may no longer
be able to concentrate on their work. This may
result in the user stumbling, falling and becom‐
ing seriously injured.
► Work calmly and carefully.
► If the light and visibility conditions are poor:
do not use the lawn mower.
► Operate the lawn mower alone.
► Watch out for obstacles.
► Do not tilt the lawn mower.
► Work standing on the ground and maintain
balance.
► If signs of fatigue occur: take a break.
► If mowing on a slope: mow across the
slope.
► Do not work on slopes with an inclination
greater than 25° (46.6%).
■ The turning blade may cut the user. This may
result in serious injury to the user.
► Do not touch a turning blade.
► If the blade is blocked by an object:
switch the lawn mower off, pull out
the activation key and remove the
battery. Only then remove the object.
■ The lawn mower may cause vibrations when
working.
► Wear gloves.
► Take breaks.
► If signs of a circulatory disturbance occur:
consult a doctor.
■ If the blade hits a foreign object when working,
the foreign object or parts of it may be dam‐
aged or thrown up at high velocity. This may
result in injury to people and damage to prop‐
erty.
► Remove foreign objects from the work area.
■ When the control bar for mowing is released,
the blade continues to turn for a short time.
This may result in serious injury to people.
► Wait until the blade is no longer turning.
■ Sparks may be produced if the turning blade
hits a hard object. Sparks may cause fires in
highly flammable environments. This may
result in serious or fatal injury to people and
damage to property.
► Do not work in a highly flammable environ‐
ment.
■ If the lawn mower is stopped on a sloping sur‐
face, it may unintentionally roll away. This may
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