Lift / lower
¾
Lift or lower the coulter until the cylinders on
all segments rest against the stop position.
At this the individual sections of the machine
move in random sequence.
¾
Switch the control unit to floating position.
Adjusting the working
depth
WARNING
Hydraulic movements can lead to severe ac-
cidents and injuries.
Ask people to leave the zone of the tines before
operating the hydraulic system.
The working depth is determined by the pre-load
on the hydraulic cylinders and the depth setting
on the rollers.
The two settings must correspond to each other.
Aluminium clips
The aluminium clips are plugged over the piston
rods of hydraulic cylinders. They limit the retrac-
tion of the piston rod.
Different Aluminium Clips
Adjusting the pre-load
The three rows of tines are each connected to
a hydraulic cylinder via push rods. The tines are
thereby pre-loaded hydraulically on the rubber
elements.
a
b
a
Bracket for aluminium clips not needed (below the
cylinder)
b
Push rod
The fewer aluminium clips are placed on the
hydraulic cylinders, the more the tines are pre-
loaded on lowering.
¾
Lifting the tines.
¾
Remove the clips from or place them on the
hydraulic cylinders.
¾
Check the adjustment of the pre-load
NOTE
¾
Insert the clips in the guide with the spring
pointing up so that the clips cannot twist or
fall out.
¾
Place the same number and colour of clips
on all hydraulic cylinders.
Pre-load too
high
:
¾
The rollers may sink especially into loose soil
or be unnecessarily loaded.
•
The rear support wheels are lifted temporarily
or constantly.
Pre-load too
low
:
•
The placing depth is not ensured. The tine is
not kept steady in the soil.
•
The seed is not sufficiently covered or pressed
down.
33