Husqvarna 339XP Chainsaw User Manual


 
English 27
CENTRIFUGAL CLUTCH
Dismantling
1. Dismantle the clutch cover.
2. Remove the spark plug and insert the piston stop (A) in the
spark plug hole. See service tools.
3. Use a 19 mm spanner and dismantle the clutch hub. NOTE!
Left-hand thread.
Cleaning and inspection
Clean all components and check the following:
1. That the outer measurement of the clutch hub is not less
than 58 mm at the most worn position.
2. Check that there is no play between the clutch shoe and
clutch holder.
3. Both springs must always be replaced if just one spring is
damaged.
4. A complete clutch or springs are available as spare parts.
5. Wear to the chain drive sprocket.
6. That the needle bearing is trouble free and that the journal
surface on the crankshaft is not damaged.
7. That the clutch drums friction surface is intact and that the
journal surface is not damaged.
58 mm
5. If necessary, dismantle the clutch shoes as follows:
A. Place the clutch hub in a vice.
B. Using a screwdriver press out the shoe holder.
C. Dismantle the shoes and springs.
4. Remove the washer (B), clutch drum (C) and needle
bearing (D).
B
C
D
A