28
KDT
REAR DISC MOWER
OPERATOR’S MANUAL
High and inclined grass
1.
Heighten the cutterbar’s inclination to H = about 1.8".
2.
If there is no inclination the grass will be wedged on the forming drums.
3.
Speed can be more than 8 mph (the faster
–
the better).
4.
Do not turn in the mowed grass.
❑
Optimum inclination of the cutterbar
towards the ground is between 0° to 5°. If the inclination
exceeds 5°, there might be a slight unevenness of mowed grass. It impairs slightly the quality of
mowing and has an influence on the mower’s operation. When the cutterbar is pulled in the other
direction, it significantly impairs the quality of mowing and in some cases the mower stops
mowing. Besides, it may lead to premature wear or even damage of the slides and cutterbar.
❑
When high grass prevails, first and second cut should be mowed at height level 2.4" - 2.8", but when
the grass grows low it should be mowed at 2". The last cut should be mowed a little bit higher, 2.8"
- 3" above the ground.
❑
Too high a PTO rpm whirls the air, which may cause inclination of the grass in front of discs, which
impairs the quality of mowing.
❑
Too low a PTO rpm impairs the quality of mowing and in some cases the mower stops mowing (too
low linear velocity of the knife).
❑
In contrast with 2-drum mowers, straight mounting of the mower and full speed are not always
possible. Adjust inclination of the mower, PTO rpm, speed and correctness of knife-mounting to
get the best results.
❑
In case of mowing soft meadows, the pressure of the cutterbar on the ground should be reduced
by adjusting support springs.
❑
Always check to make sure that the ground speed suits the conditions or work and that it does not
create a potential source of danger
❑
Do not take sharp turns anytime and do not operate in reverse.
Fig. 16.
Shape of the stubble with cutterbar’s inclination 0°, 3° and 5°
