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Idiomas disponibles
ENGLISH
3.6.2 SEED PRESS WHEEL ADJUSTMENT
The purpose of the press wheel, thanks to its spring load system
is toclose the seeding furrow right after the seed has been placed
this operation may vary according to different tactor such as:
- type of soil (light, compacted, huthd or dry);
- amount and rind of residues on the ground;
- seeding speed, etc;
therefore the down pressure must be registered carefully. The
action of the press wheel may be adjusted as follows (Fig. 47):
A) modifying the tension of the spring (1);
B) modifying the space between the wheel and the seeding
furrow by changing the position of the spacer (2).
If necessary, adjust the backlash of the rear seed covering
wheel periodically by carrying out the following operations (Fig.
48):
C) loosen the lock nuts (3);
D) carefully tighten the screws (4) by checking the
backlash of the rear seed covering wheel;
E) tighten the previously loosened lock nuts (3).
3.7 REAR SEED COVERING HARROW
The working pressure of the seed covering harrow
springoperated teeth can be regulated by rotating the spring on
the upper arm (A, Fig. 49).
Changing the position of the pins (B, Fig. 49), vary the cutting
angle of the spring-loaded teeth.
The seed-covering harrow can be disengaged, if necessary, with
very simple operations.
First, completely discharge the compression springs installed
on the top arms (A, Fig. 49). Then, lift the sections of the seed-
covering harrow and lock them in position using the supplied
pegs (C, Fig. 49). Secure the pegs with safety pins.
68
WARNING
USE AND MAINTENANCE
fig. 47
3
4
fig. 48
A
C
fig. 49
g
1
3
2
B
cod. G19503120
