6
1. The hexagonal screws on the bottom blade
assembly allow the distance from the cylinder
and the bottom blade to be adjusted.
2. Turn the hexagonal screw clockwise moves
the bottom blade closer to the cylinder.
Reversely, anti-clockwise moves the blade
from the cylinder.
3. Adjust the setting so that the blades are
just touching. When they are too close
mowing will be difficult and noisy. Adjust so
that the blades rotate easily, but are still in
contact and cutting, rather than ripping the
grass.
4. Periodically check the blade adjustment.
7. TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
The grass is not cut
correctly.
A ragged cut may be caused by
trying to cut too long grass.
Select a higher cut position. Cut more regularly
Grass is ripped out rather than
cleanly cut.
Adjust the blade and cylinder settings as shown
above.
The cylinder and bottom blade are
blunt.
Replace or sharpen the blades by a Cobra
dealer.
Excessive vibration and
noise
Damaged cylinder or bottom blade
Replace the damaged blades.
The bottom blade may be adjusted
too closely to the cylinder
Adjust the blade and cylinder settings as shown
above.