Cutting Equipment - Husqvarna 343F Manuel D'utilisation

spark arrestor screen. Check whether the muffler on your
machine is fitted with this kind of screen.
For mufflers it is very important that you follow the
instructions on checking, maintaining and servicing your
machine. See instructions under the heading Checking,
maintaining and servicing the machine's safety equipment.
Never use a machine that has a faulty muffler.
Regularly check that the muffler is securely attached to the
machine.
If the muffler on your machine is fitted with a spark arrestor
screen this must be cleaned regularly. A blocked screen will
cause the engine to overheat and may lead to serious
damage.
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 muffler.
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!
48 – English
GENERAL SAFETY PRECAUTIONS
Locking nut
A locking nut is used to secure some types of cutting
attachment.
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.
Locking screw
The lock screw must be tightened securely for ball-bearing-
mounted support cups.

Cutting equipment

This section describes how to choose and maintain your
cutting equipment in order to: