Husqvarna 335RX-Series ユーザーズマニュアル

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MAINTENANCE
Air filter
The air filter must be regularly cleaned to remove dust and dirt 
in order to avoid:
Carburettor malfunctions
Starting problems
Loss of engine power
Unnecessary wear to engine parts
Excessive fuel consumption.
Clean the filter every 25 hours, or more regularly if conditions 
are exceptionally dusty.
Cleaning the air filter
Remove the air filter cover and take out the filter. Wash it 
clean in warm, soapy water. Ensure that the filter is dry before 
refitting it. 
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.
If the machine is used in dusty conditions the air filter should 
be soaked in oil. See instructions under the heading Oiling the 
air filter.
Oiling the air filter
Always use HUSQVARNA filter oil, art. no. 531 00 92-48. The 
filter oil contains a solvent to make it spread evenly through 
the filter. You should therefore avoid skin contact.
Put the filter in a plastic bag and 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 to the machine. Never use 
common engine oil. This would drain through the filter quite 
quickly and collect in the bottom.
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 0.5 mm (0,020"). 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.
Note: 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.