Centrifugal Clutch Dismantling And Assembly - Husqvarna 322 Workshop Manual

4
The centrifugal clutch has the task of transferring
the power from the engine to the cutting equip-
ment's drive axle. As the name implies, it works
according to a centrifugal principle.
This means the clutch's friction shoes are thrown
outwards towards the clutch drum at a certain
engine speed. When the friction against the drum
is sufficiently great it drives the drive axle at the
same speed as the engine.
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Centrifugal clutch
Some slipping occurs between the clutch and
the clutch drum when accelerating as well as
in the reversed situation when the cutting
equipment jams. Thereby abnormal load
changes on the crankshaft are prevented.
The engagement speed has been carefully
tested so that the engine can idle without the
cutting equipment's drive axle rotating.
Dismantling
Dismantle the clutch by following the
instructions in the chapter "Ignition
system".
Twist open the clutch and inspect the
components with regard to wear or
damage.
Dismantling
The centrifugal clutch is bolted to the
flywheel.
Follow the detailed instructions in the
chapter "Ignition system" when the
clutch is dismantled.
Twist open the clutch.
Inspect the components with regard to
wear or damage.
Pay close attention to the ends of the
springs, which in addition to wear can
also show signs of crack formation in
the material.
Assembly
Put together the clutch shoes with the
springs.
NOTE!
Both clutch shoes should be replaced
even if only one of the shoes shows
signs of heavy wear. This is to prevent
engine vibration due to imbalance in
the clutch.
Bolt the clutch on the flywheel. Do not
forget the washers between the
flywheel and the clutch shoes.