Stihl BF-MM Instruction Manual page 7

Be extremely cautious when changing
direction with the power tool – especially
on slopes.
On slopes, always work parallel to the
gradient to reduce the risk of injury from
slipping or contact with the attachment.
Never work on steep slopes because of
the risk of injury through loss of control
of the power tool.
Take particular care when working close
to fences, walls, stones, roots, trees and
areas of dense growth. The rotor blades
may snag – risk of injury!
Be particularly alert and cautious when
wearing ear protection because your
ability to hear warnings (shouts, alarms,
etc.) is restricted.
Take breaks when you start getting tired
or feeling fatigue – risk of accidents!
Work calmly and carefully – in daylight
conditions and only when visibility is
good. Proceed with caution, do not put
others in danger.
If your power tool is subjected to
unusually high loads for which it was not
designed (e.g. heavy impact or a fall),
always check that it is in good condition
before continuing work – see also
"Before Starting". Make sure the safety
devices are working properly. Never use
a power tool that is no longer safe to
operate. In case of doubt, contact a
dealer.
Do not touch the attachment while the
engine is running. If the attachment
becomes jammed by an obstruction,
switch off the engine immediately before
attempting to remove the obstruction –
otherwise, risk of injury!
BF-MM, BK-MM
Opening the throttle while the
attachment is blocked increases the
load and reduces engine speed. The
clutch then slips continuously and this
causes overheating and damage to
important components (e.g. clutch,
polymer housing components) – and this
can increase the risk of injury from the
attachment moving while the engine is
idling.
Check the attachment at frequent and
regular intervals during operation, or as
soon as there is a noticeable change in
behavior:
Shut off the engine, hold the
–
machine securely.
Check condition and secure
–
position; look for cracks.
Replace damaged working tools
–
immediately, even if they have only
superficial cracks.
Clean the attachment and deflector at
regular intervals during operation.
Shut off the engine
–
Use gloves
–
Remove grass, weeds, clumps of
–
soil, etc.
To reduce the risk of injury, shut off the
engine before changing attachments.
Do not continue using or attempt to
repair damaged or cracked cutting
attachments by welding, straightening or
modifying the shape (out of balance).
After finishing work
After finishing work or before leaving the
power tool unattended: Shut off the
engine.
After finishing work, clean dirt, soil and
plant residue off the attachment – wear
gloves to reduce the risk of injury.
Do not use any grease solvents when
cleaning.
After thoroughly cleaning, coat metal
surface of attachments with a corrosion
inhibitor.
Maintenance and Repairs
Service the machine regularly. Do not
attempt any maintenance or repair work
not described in the MultiTool and
MultiEngine instruction manuals. Have
all other work performed by a servicing
dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer. STIHL dealers are
regularly given the opportunity to attend
training courses and are supplied with
the necessary technical information.
Only use high-quality replacement parts
in order to avoid the risk of accidents
and damage to the power tool. If you
have any questions in this respect,
consult a servicing dealer.
STIHL recommends the use of original
STIHL replacement parts. They are
specifically designed to match your
model and meet your performance
requirements.
To reduce the risk of injury, always shut
off the engine before carrying out any
maintenance or repairs or cleaning the
machine.
English
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