7BR 340, BR 340 L, BR 420, BR 420 C
English / USA
: Stop switch must move easily to $
: Tightness of spark plug boot - if boot
is loose, sparks may occur and
ignite fuel vapor!
: Condition of fanwheel and fan
housing.
Starting
!Warning!
Your blower is a one-person machine.
To reduce the risk of eye or other injury
from thrown objects, insure that by-
standers are at least 50 feet (15m) away
during use.
Stop the operation immediately if you
are approached.
For specific starting instructions, see the
appropriate section of your owner`s
manual. Place the machine on firm
ground or other solid surface in an open
area. Maintain good balance and secure
footing.
!Warning!
When you pull the starter grip, don`t
wrap the starter rope around your hand.
Do not allow the grip to snap back, but
guide the starter rope slowly back to
permit the rope to rewind properly.
Failure to follow this procedure may
result in injury to hand or fingers and
may damage the starter mechanism.
The assistance of another person may
be needed in placing the unit on your
back after starting. In order to reduce the
risk of injury to the assistant from thrown
objects or from contact with fumes, the
engine should be kept at idle speed
during this brief period, and your
assistant should not stand in the area of
the outlet nozzle or exhaust. Otherwise,
the unit should be started and operated
without assistance.
Catalytic converter
!Warning!
Some STIHL blower
models are equipped with
a catalytic converter,
which is designed to
reduce the exhaust
emissions of the engine
by a chemical process in the muffler.
Due to this process, the muffler does not
cool down as rapidly as conventional
mufflers when the engine returns to idle
or is shut off. To reduce the risk of fire
and burn injuries, the following specific
safety precautions must be observed.
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