Husqvarna 343FRM User Manual
MAINTENANCE
32 – English
Cleaning the air filter
Remove the air filter cover and take out the filter. Wash it
clean in warm, soapy water.
clean in warm, soapy water.
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 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.
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.
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).
of oil).
•
A dirty air filter.
These factors cause deposits on the spark plug
electrodes, which may result in operating problems and
starting difficulties.
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.
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.
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:
the cold and snowy conditions caused by:
•
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.
working temperature of the engine.
•
Preheat the intake air to the carburettor by utilising the
heat from the engine.
heat from the engine.
There is a special winter kit available when using the
machine in cold and/or snowy conditions, this includes the
following:
machine in cold and/or snowy conditions, this includes the
following:
•
a special air filter cover without air intake (A)
•
a cover for the filter holder (B)
•
a cover for the starter housing (C)
•
a special wear guard with an air duct (D) that routes
the hot air from the muffler to the carburettor
the hot air from the muffler to the carburettor
•
a special air filter with a coarser mesh size (E)
x3
A
B
C
D
E