ﬁtted with a catalytic converter is also designed to reduce
harmful exhaust gases.
In countries that have a warm and dry climate there is a
signiﬁcant risk of ﬁre. We therefore ﬁt certain mufﬂers with
a spark arrestor mesh. Check whether the mufﬂer on your
machine is ﬁtted with this kind of mesh.
For mufﬂers it is very important that you follow the
instructions on checking, maintaining and servicing your
Never use a machine that has a faulty mufﬂer.
Regularly check that the mufﬂer is securely attached to
If the mufﬂer on your machine is ﬁtted with a spark
arrestor mesh this must be cleaned regularly. A blocked
mesh will cause the engine to overheat and may lead to
WARNING! Mufﬂers ﬁtted with catalytic
converters get very hot during use and
remain so for some time after stopping.
This also applies at idle speed. Contact
can result in burns to the skin.
Remember the risk of ﬁre!
WARNING! The inside of the mufﬂer
contain chemicals that may be
carcinogenic. Avoid contact with these
elements in the event of a damaged
GENERAL SAFETY PRECAUTIONS
WARNING! Bear in mind that:
The exhaust fumes from the engine are
hot and may contain sparks which can
start a ﬁre. Never start the machine
indoors or near combustible material!
A locking nut is used to secure some types of cutting
When ﬁtting, tighten the nut in the opposite direction to the
direction of rotation of the cutting attachment. To remove
it, undo the nut in the same direction as the cutting
attachment rotates. (CAUTION! The nut has a left-hand
thread.) When loosening and tightening the saw blade
nut, there is a risk of injury from the teeth of the saw blade.
You should therefore always ensure that your hand is
shielded by the blade guard when doing this. Always use
a socket spanner with a shaft that is long enough to allow
this. The arrow in the diagram shows the area where you
should operate the socket spanner when loosening or
tightening the nut.
The nylon lining inside the locking nut must not be so worn
that you can turn it by hand. The lining should offer a
resistance of at least 1.5 Nm. The nut should be replaced
after it has been put on approx. 10 times.
This section describes how to choose and maintain your
cutting equipment in order to:
Reduce the risk of blade thrust.
Obtain maximum cutting performance.