Husqvarna 524LK Operator's Manual page 18

To examine the spark plug
CAUTION: Always use the recommended
spark plug type. Incorrect spark plug type
can cause damage to the product.
• Examine the spark plug if the engine is low on
power, is not easy to start or does not operate
correctly at idle speed.
• To decrease the risk of unwanted material on the
spark plug electrodes, obey these instructions:
a) Make sure that the idle speed is correctly
adjusted.
b) Make sure that the fuel mixture is correct.
c) Make sure that the air filter is clean.
• If the spark plug is dirty, clean it and make sure that
the electrode gap is correct, refer to
on page 21 .
• Replace the spark plug if it is necessary.
To apply grease to the two-piece shaft
• Apply grease to the end of the drive shaft after each
30 hours of operation.
To clean the air filter
CAUTION: An air filter that is damaged, very
dirty or soaked with fuel must always be
replaced.
18
An air filter that is used for a long time can not be fully
cleaned. Replace the air filter regularly and always
replace a defective air filter.
Technical data
1. Move the choke lever up, to close the choke valve.
2. Remove the air filter cover and remove the air filter.
3. Clean the air filter with warm soap water.
4. Clean the inner surface of the air filter cover. Use air
5. Do a check of the surface of the rubber seal.
6. Make sure that the filter is dry before you install it.
To apply oil to the air filter
1. Put the air filter in a plastic bag.
2. Put the oil in the plastic bag.
3. Rub the plastic bag to supply the oil equally across
or a brush.
Replace the filter on the rubber seal if it is damaged.
CAUTION: Always use Husqvarna special
air-filter oil. Do not use other types of oil.
WARNING: Put on protective gloves. The
air-filter oil can cause skin irritation.
the air filter.
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