Husqvarna 570 Workshop Manual page 53

Seals
1. To replace the seals on the crank shaft, remove the
following parts first:
On the flywheel side:
• Starter. See page 18.
• Flywheel. See page 20.
• Generator, where appropriate. See page 24.
On the clutch side:
• Chain and bar. See Operator's Manual.
• Chain guide plate. See page 12.
• Centrifugal clutch. See page 26.
• Oil pump. See page 28.
2. Screw the relevant dismantling tool 504 91 40-01
into the seal and pull it out. See fig. 14.
3. Tap in the new seal with the sleeve from tool
502 50 30-20. See fig. 15.
4. Fit the parts in accordance with pos. 1 above.
Bar bolts
1. Drain off the chain oil.
2. Tap in the old bar bolt from outside so that it drops in
the oil tank.
3. Remove the bolt from the oil tank.
4. Fix a piece of steel wire on the end of the new bolt,
and pull it through the oil tank and out through the
bolt hole in the crankcase. See fig. 16.
5. Pull the steel wire so that the bolt comes into its
hole.
6. Pull out the bolt with its nut and shim between the
nut and crankcase. See fig. 17.
7. Check that the square head of the bolt comes in its
recess in the crankcase. Where appropriate, turn the
bolt.
8. Refill with chain oil.
CRANKCASE and CRANKSHAFT
Fig. 14
Fig. 15
Fig. 16
Fig. 17
English – 53