Husqvarna DT18 Operator's Manual page 21

Replacing worn flail blades
1. Allow the engine to cool.
2. Disconnect the spark plug.
3. Tip the machine forward; see the section "Two
minute rule".
IMPORTANT INFORMATION
When tipping the machine forward observe
the "Two minute rule".
4. Remove e-rings (1) (locking washer type) that hold
the blade shaft (2) in place (see the illustration).
5. Inspect the blade shafts and replace if bent or
worn.
6. Drive the blade shafts out towards the center. The
blades (4) and the plastic spacers (3) will fall off.
7. Fit the new blades and replace the plastic spacers
as necessary. Refer to the illustration of the
components for blade/spacer placement.
8. Install e-rings.
9. Repeat this procedure for the remaining three
shafts.
10. Reattach the spark plug cable.
MAINTENANCE
3
1
4
2
8011-027
8062-020
-21
Husqvarna