Bevel Gear; Drive Shaft; Spark Plug; Winter Use - Husqvarna 343F Manuel D'utilisation

An air filter that has been in use for a long time cannot be
cleaned completely. The filter must therefore be replaced with
a new one at regular intervals. A damaged air filter must
always be replaced.

Bevel gear

The bevel gear is filled with the right quantity of grease at the
factory. However, before using the machine you should check
that the bevel gear is filled three-quarters full with grease. Use
HUSQVARNA special grease.
The grease in the bevel gear does not normally need to be
changed except if repairs are carried out.

Drive shaft

The drive shaft must be greased every three months during full-
time use. Contact your dealer if you are uncertain about the
procedure.

Spark plug

The spark plug condition is influenced by:
• Incorrect carburetor adjustment.
• An incorrect fuel mixture (too much or incorrect type of oil).
• A dirty air filter.
These factors cause deposits on the spark plug electrodes,
which may result in operating problems and starting difficulties.
If the machine is low on power, difficult to start or runs poorly at
idle speed: always check the spark plug first before taking any
further action. If the spark plug is dirty, clean it and check that
the electrode gap is 0.020 inch (0.5 mm). The spark plug should
be replaced after about a month in operation or earlier if
necessary.
CAUTION! Always use the recommended spark plug type!
Use of the wrong spark plug can damage the piston/cylinder.
Check that the spark plug is fitted with a suppressor.

Winter use

Running problems can occur when using the machine in the
cold and snowy conditions caused by:
MAINTENANCE
• Too low engine temperature.
• Icing of the air filter and carburetor.
Special measures are therefore often required:
• Partly mask the air inlet on the starter to increase the
working temperature of the engine.
• Preheat the intake air to the carburetor by using the heat
from the cylinder.
Temperature 5°C (41°F) or colder:
The air filter holder is prepared so it can be changed for use in
the cold. Remove the air filter cover and air filter. Turn the winter
cover anticlockwise using a screwdriver so that the preheated
air from the engine can pass inside the carburettor
compartment and prevent, for example, the air filter from icing
up (see figure).
For temperatures below 5°C (41°F) and/or in snow conditions
there is also:
• a special cover for the starter housing
•
a cover for cylinder cover's air inlet should be fitted as
illustrated.
These reduce the cooling air and prevent large amounts of
snow from being sucked into the engine.
IMPORTANT! The machine MUST be returned to its standard
design at temperatures warmer than 5°C (41°F). Otherwise
there is a risk of overheating resulting in serious engine
damage.
IMPORTANT! Any maintenance other than that described in
this manual must be carried out by your servicing dealer
(retailer).
IMPORTANT! Use only HUSQVARNA replacement parts.
Use of other brands of replacement parts can cause damage
to your unit or injury to the operator or others. Your warranty
does not cover damage or liability caused by the use of
accessories and/or attachments not specifically
recommended by HUSQVARNA.
–
English 67