Filter
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18 – English
MAINTENANCE
Air filter
The air filter (A) should be
cleaned regularly removing
dust and dirt to avoid:
• carburettor malfunction
• starting problems
• reduced engine power
• unnecessary wear to
engine parts
• abnormal fuel
consumption
Clean the filter after every
25 hours or more regularly if
operating conditions are
exceptionally dusty.
Oiling the air filter
Always use HUSQVARNA
filter oil, order no. 503 47
73-01. The filter oil con-
tains a solvent to make it
spread evenly through the
filter. You should therefore
avoid skin contact. Put the
filter in a plastic bag and the
pour the filter oil over it.
Knead the plastic bag to
distribute the oil. Squeeze
the excess oil out of the filter
inside the plastic bag and
pour off the excess before
fitting the filter on the
machine. Never use com-
mon engine oil. This would
drain through the filter
quite quickly and collect in
the bottom.
Cleaning the air filter
Dismantle the air filter cover (B) and remove the air filter.
Wash in clean, warm soapy water. Ensure that the filter is dry
before refitting.
An air filter used for a long period of time can never be cleaned
completely. Therefore it is necessary to replace the filter from
time to time with a new filter. A damaged air filter must always
be replaced.
If the machine is used in dusty conditions the air filter
should be soaked in oil, see the section on “Oiling the air
filter“.
Gearbox
There are three grease
nipples (A) on the gearbox.
Use a grease gun to top up
with grease. This should be
carried out after approxi-
mately every 20 working
hours. Use Husqvarna
special grease, No. 503 98
96-01.
Note that the gearbox must
not be filled completely
with grease. The grease
expands as the machine
heats up during operation.
If the gearbox was com-
pletely filled with grease it
could damage the seals and
lead to leakage.
The lubricant in the gearbox does not normally need to be
replaced other than with repair.
Lubrication
Always lubricate the blade
runners with special grease
531 00 60-74 (UL 21)
before use.