Husqvarna 390XP Workshop Manual page 27

12.2 Cleaning and inspection
Clean all components and do a check of the following:
1. The lining thickness on the clutch shoes must not be
less than 3.5 mm at the most worn point. See fig. 5.
To avoid imbalance all the clutch shoes must be
replaced at the same time.
2. There must be no play between the clutch shoes and
the clutch hub.
3. Examine the chain drive sprocket for wear or
damage.
4. The needle bearing must be in good condition and
the journal surface on the crankshaft undamaged.
5. The friction surface on the clutch drum should be
intact and the bearing surface undamaged.
12.3 Assembly
When assembling the centrifugal clutch the chain brake
must be in the off position.
1. Fit the clutch shoes on the hub and fit the springs
with circlip pliers. See fig. 4.
2. Fit the clutch hub on the crankshaft and tighten with
the clutch tool.
Note: Left-hand thread! See fig. 6.
3. Remove the piston stop and fit the spark plug and
put on the ignition cable.
4. Grease in the needle bearing before fitting. Fit the
clutch drum (C) with needle bearing (D) and chain
drive sprocket (E). See fig. 2 page 24.
5. Fit the washer and locking ring (B). See fig. 2.
6. Fit the cylinder cover, chain and bar. Refer to the
Operators Manual.
Fig. 5
Fig. 5
Fig. 5
Fig. 6
Fig. 6
Fig. 6
Centrifugal clutch
min 3.5 mm
min 3.5 mm
English - 27