Husqvarna 525HF3S Operator's Manual page 14

2. Remove the air filter cover and remove the air filter.
3. Clean the air filter with warm soap water.
4. Replace the air filter if it is too dirty to fully clean it.
Always replace a damaged air filter.
5. Also clean the inner surface of the filter cover. Use
air or a brush.
6. Do a check of the rubber sealing surface. Replace
the filter on the rubber seal if it is damaged.
7. Make sure that the filter is dry before you assemble
it.
To apply oil to the foam air filter
CAUTION:
special air filter oil. Do not use other types
of oil.
WARNING:
The air filter oil can cause skin irritation.
1. Put the foam 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
the foam air filter.
4. Push the unwanted oil out of the foam air filter while
in the plastic bag.
To lubricate the gear housing
WARNING:
housing immediately after operation of the
14
Always use Husqvarna
Put on protective gloves.
Do not touch the gear
product. The gear housing is hot and can
cause injury.
• Use Husqvarna special grease. Speak to your
servicing dealer for more information about
recommended grease.
• Add the grease through the grease nipple.
CAUTION:
fully.
To clean and lubricate the blades
1. Clean the blades from unwanted materials before
and after you use the product.
2. Lubricate the blades before long periods of storage.
Note:
Speak to your servicing dealer for more
information about recommended cleaning agents and
lubricants.
To examine the blades
1. Remove the cap on the socket of the gear housing.
2. Put the combination wrench in the socket of the gear
housing and turn clockwise and counterclockwise.
Make sure that the blades move freely.
3. Examine the edges of the blades for damages and
deformation.
4. Use a file to remove burrs on the blades.
Do not fill the gear housing
1118 - 004 - 10.11.2022