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6.2.3.1 SM MODEL
This model is fitted with two types of coulter:
FIXED COULTERS
These coulters are not height adjustable. Consequently, the
sowing depth will be defined by the main tines regulating
the sowing equipment’s chassis (see section 6.2.1 DEPTH TI-
NES).
It is only possible to change the coulters’ pressure by adjus-
ting the nut at the top of the spring (1, Fig. 6.8).
THESE COULTERS HAVE A DUAL SPRING. REMO-
VE THE INNER SPRING TO REDUCE SUBSTANTIA-
LLY THE PRESSURE EXERTED BY THE COULTER.
The coulter is fastened to the bracket by a special SOLÀ bolt (2,
Fig. 6.8) with a self-locking nut. The coulter’s side clearance is
adjusted using this nut.
Fig. 6.8
2
1
FIXED
HEIGHT-ADJUSTABLE COULTERS
These coulters are aligned with the wheels of the tractor and
seed drill.
IMPORTANT:
IT IS ADVISABLE TO ADJUST THE-
SE COULTERS IF THE RUTS ARE VERY DEEP.
Adjust the spring nut to set the pressure exerted by the coul-
ter on the soil (1, Fig. 6.9).
THESE COULTERS HAVE A DUAL SPRING. REMO-
VE THE INNER SPRING TO REDUCE SUBSTANTIA-
LLY THE PRESSURE EXERTED BY THE COULTER.
These coulters are fastened to the bracket by a special SOLÀ
bolt (2, Fig. 6.9) with a self-locking nut. This nut is used to set
the coulter clearance.
These coulters’ depth can be adjusted individually, enabling
the coulters to be lowered to adjust their height, as follows:
1-
Remove the bolts and nuts (3, Fig. 6.9).
2-
Place the coulter in the desired position.
3-
Insert the bolts and nuts in the new position (3, Fig. 6.9).
Fig. 6.9
2
1
ADJUSTABLE
2
3
1
3
