Removing Clogging And Jams - SaMASZ KDD 861 Operator's Manual

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. 25. Shape of the stubble with cutterbar's inclination 0°, 3° and 5°

5.9.2. Removing clogging and jams

When operating the mower pay attention to variable conditions on field, which may influence
the mower clogging and jams, such as: terrain unevenness, height and density of grass as well as
other objects in the grass (stones, branches, piles of soil). In order to avoid clogging and jams,
operating speed should be adjusted to the mentioned conditions.
Operator's manual
- 43 -
Double-sided disc mowers
with central suspension