horsch Avatar 12.20 SW, Operating Instructions Manual

Page: 39 / 63

Uniformer
The uniformers hold the seed in the seedbed
and press it gently down.
Trap rollers (option)
Trap rollers may be installed as an option instead
of the uniformers.
NOTE
If the trap rollers are in working position, the lock-
ing pin (1) must be pulled outward and locked
in each case. The trap rollers must thus be able
to move freely upward.
Under moist conditions and sticky soils the trap
rollers may pick up residues. In this case, the
trap rollers should be directed up or disabled:
1
¾
Pull the indexing bolt (1).
¾
Lift the trap roller until the side plate is located
over the indexing bolt.
¾
Engage the indexing bolt (1).
Closing rollers
Depending on the field conditions, the required
pressure may adjusted in different steps:
1
a
b
2
4
3
5
¾
Let the lever on the torsion spring (a) engage
in one of the three positions (1), (2) or (3).
The pressure applied increases from position
(1) to (3).
The other end of the torsion spring can be
adjusted, in addition, in the 2 positions (4) and
(5). The pressure applied is thereby higher in
position (5).
¾
Relieve the lever for adjustment (a).
¾
Loosen the screw (b), dismantle and adjust
position.
¾
Tighten the screw (b) and let the lever engage.
Ensure the O-ring is seated correctly.
35