BlueBird S22S6DA_968999681 - Manual (Page 22)

22
MAINTENANCE
Wear/Rotation/Replacing fl ail blades
After you have used your dethatcher for some time,
the blades will begin to wear on the striking edge.
When this happens, their dethatching performance will
diminish. A new combing edge may be obtained by
rotating the entire rotor shaft assembly laterally (end to
end). This procedure can be repeated until the blades
reach their wear limit; see illustration.
A. New blade
B. Worn blade
C. After rotation
3. Remove the belt guard (see illustration).
4. Remove the belt guard and pulley from the rotor
shaft (see illustration).
5. Remove the 6 bearing bolts and allow the rotor
shaft to slide out.
6. Check the shaft, bearing, blade length, blade
safety clips and spacers.
7. Rotate the shaft end for end.
8. Refi t the bearing bolts.
9. Refi t the pulley and check that it is aligned with top
pulley.
10. Refi t the drive belt.
11. Check the pulley alignment to the engine shaft
pulley. The drive belt should run smoothly in its
track. Adjust as necessary. Tighten the pulleys.
12. Refi t the belt guard.
13. Reattach the spark plug cable.
Rotate the rotor shaft as follows:
Rotating the rotor shaft
1. Allow the engine to cool.
2. Disconnect the spark plug.
IMPORTANT INFORMATION
Only the fl ail blade rotor shaft can be
rotated to achieve even wear.
8011-006
8011-027
DT06
BELT COVER
PR22>3.5" /89mm
A B C