Operator’s manual
Front disc mowers
KDF
- 24 -
Horizontally
Stubble
characteristics -
°
Stubble
characteristics -
High and inclined grass:
4.
Heighten the cutterbar’s inclination to – H = about 4.5 cm.
5.
Operation without cutterbar’s inclination may cause winding of grass on the forming drums.
6.
Speed up to V
≥
12 km/h (the faster – the better)
7.
Do not take turns 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 the mowed grass. It impairs slightly the quality
of mowing and has an influence on mower’s operation. When the cutterbar is pulled in the other
way, 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 the high grass prevails, the first and the second cut should be mowed at the height level -
6 - 7 cm, but when the grass grows low – at the height level - 5 cm. The last cut should be mowed
a little bit higher – 7 – 7,5 cm above the ground.
- Too high PTO rpm whirl the air, which may cause the inclination of the grass in front of the discs.
It impairs the quality of mowing.
- Too low PTO rpm impair the quality of mowing and in some cases the mower stops mowing.(too
low linear velocity of the knife).
- In case of mowing soft meadows the pressure of the cutterbar on the ground should be reduced by
adjusting support springs.
Fig. 15. Shape of the stubble with cutterbar’s inclination 0°, 4° and 8°