Twine tension on the upper twine strand
The upper strands of twine (1) should be held by the
brakes (2) up to a drawing force of 100 - 120 N.
Before the twine brakes will allow the twine to slip
through, the twine tension arm (3) should move down-
ward against the spring force until the twine (1) is guided
through the eye of the tension arm (4) almost without
moving to the side.
Testing the twine tension:
Tie the cord (1) onto a spring balance. The spring
balance must indicate 100 - 120 N shortly before the
cord slips through.
You can increase the tension by turning the wing nut (5)
tighter. To reduce the tension, loosen the wing nut.
The dimension “X” is based on the tying twine selected and
must be determined in each individual case by testing in the
twine strand. A pretension of the twine strand that is too high
may cause knotting errors and place too heavy a load on the
components involved.
BPXC0205
1
2
BPXC0234
1
2
X
Testing the drawing tension:
1. Thread in the twine according to instructions.
2. Initiate the knotting process manually.
3. Move the flywheel in the working direction manually
until the tying needles have reached their upper dead
point.
4. Pull the tying twine about 200 mm out of the needle
and cut it.
5. Pull the strand of twine slowly and evenly until the
twine tension springs have reached their highest
position under the channel.
6. As the twine is held, the twine tension springs must
remain in this position without any twine being able
to be pulled back by the brake.
7. The brake must allow twine to slip through if there is
a slight increase in the pulling force.
Twine tension on the lower twine strand
You can increase the tension by turning the wing nut (5)
tighter. To reduce the tension, loosen the wing nut.
The twine brakes (1) for the lower twine strand are
behind the packer under the bale channel chamber.
Pre-setting X= 65 mm
Pre-setting X= 70 mm
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