Air Filter - Husqvarna K970 III Workshop Manual

6.3.3 To install the flywheel
The crankshaft and the center of the flywheel must be
free from grease. Tightening torque 18 – 22 lbf·ft / 25 –
30 Nm. Use a torque wrench to tighten the nut.
1. Align the key in the flywheel with the keyway on the
crankshaft. Install the washer and nut.
2. Remove the tool and put the springs on the starter
pawls.

6.4 Air filter

6.4.1 Function of the air filter
The centrifugal cleaning is the first step in the process to
clean the inlet air. The blades on the flywheel supply the
cylinder with cool air. This is shown in the illustration.
The blades are also the part in operation on the
centrifugal cleaning of the inlet air of the engine. An inlet
tube is installed near the blades on the flywheel. The
centrifugal force prevents large particles in the inlet tube.
The centrifugal force pushes the large particles out
before they can go into the tube. Only small dust
particles go with the air to the inlet.
32 - Repair and servicing
6.4.2 To replace the air filter
The air filter cannot be cleaned. When the power starts
to decrease, replace the air filter.
1. Remove the air filter, refer to
on page 15 .
CAUTION: Make sure that dust does not fall
into the carburetor inlet.
2. Clean and examine the inlet duct.
a) Make sure that there is no dust on the inner
surface of the inlet duct. If there is dust, the inlet
duct is damaged and must be replaced.
b) Clean dry dust from the outer surface of the inlet
duct with compressed air or a vacuum cleaner.
c) Clean material from wet cutting mechanically.
3. Install a new air filter.
To remove the air filter
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