horsch Avatar 12.20 SW, Operating Instructions Manual

Page: 38 / 63

Adjusting the drill unit
DANGER
Lowering machine parts can cause severe crush-
ing accidents!
¾
Lock control units, if necessary. Make sure
that the control units cannot be operated
unauthorised. Instruct persons to leave the
danger zone.
¾
Comply with the accident prevention instruc-
tions.
NOTE
Adjust the individual components on all coulters
all equally.
1
2
4
5
7
8
3
6
Drill unit
1 Drilling arm bearing
2 Coulter disc
3 Drill shoe
4 Trap roller (option)
5 Closing roller
6 Depth guiding wheel
7 Depth setting adjustment lever
8 Seed hose
Drill shoes
The drill shoes open the seed furrows and keep
them clear for the placement of the seed.
The drill shoes also keep the coulter discs and
trap rollers free of dirt.
¾
Check drill shoes regularly for function and
wear.
¾
Adjust or replace the drill shoes if worn.
1
2
4
3
¾
If the coulter disc is worn, move the drill shoes
toward the top via the row of holes (1).
The distance of the drill shoes to the edge
of the coulter disc (2) should be approx.
10 - 20 mm.
¾
The drill shoes must have contact with the
coulter disc over the entire length of the edge.
If worn, open the screw (3) and adjust the drill
shoes by adding spacer discs (4).
Rotating the coulter disc by hand must be pos-
sible.
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