11
GB
7. Troubleshooting
DANGER ! Cutting tool can cause injuries !
V
Wear suitable work gloves when rectifying faults.
Fault Possible
Cause
Rectification
Abnormal Noises
Screws / components loose.
v
Tighten screws.
Foreign bodies on the blade.
v
Remove foreign bodies.
Notch in the blade.
v
Remove notches with
grindstone.
Blades are striking each other
v
Adjust cutting mechanism.
too hard.
Lawn is not cleanly cut
Blade adjustment incorrect.
v
Adjust cutting mechanism.
Blade blunt.
v
Regrind or replace blade.
Grass too long (e.g. after a
v
Cut lawn shorter with a
relatively long absence).
sickle.
The cutting gear of your lawn mower was optimally adjusted be-
fore leaving our company. If, after longer use, a clean cut of the
grass is no longer possible or the blade roller contacts the lower
blade, then the lower blade should be adjusted as follows:
1. Unhook upright and clean cylinder mower.
2. Check cylinder
B
and lower blade
C
for notches and remove
these with a grindstone if necessary.
3. Unscrew internal hexagon screws
D
with an internal hexagon
wrench (5 mm) anticlockwise until the cylinder
B
turns freely.
4. Push the feeler gauge supplied (thin strip of metal)
A
between one blade
B
on the cylinder and the lower blade
C
.
5. Tighten left internal hexagon screw
D
with an internal hexa-
gon wrench (5 mm) until the feeler gauge
A
is held gently.
6. Continue turning the cylinder until the blade
B
, already
adjusted on the left side, is exactly above the lower blade
C
on the right side.
7. Tighten the right internal hexagon screw
D
with an internal
hexagon wrench (5 mm) until the feeler gauge
A
is held
gently.
8. Rotate cylinder
B
. If a banging noise is produced during this,
open up the internal hexagon screw
D
slightly on the side
affected.
When the cylinder and the lower blade can hardly be heard
touching each other, the cutting mechanism has been adjusted
correctly.
9.
Cutting test:
Place a strip of paper
E
in such a way on the lower blade
C
that it points towards the spindle of the cylinder
B
.
10. Turn cylinder
B
carefully.
If the lower blade is set correctly
C
the paper will be cut off
as if with scissors.
11. Repeat the cutting test on the other blades
B
.
Adjusting the cutting
mechanism :
B
A
C
D
B
E
C
