Settings
15
Checking/setting twine tension on upper twine 15.15
BiG Pack 870 HDP XC
Original Operating Instructions 150000760_00_en
209
Pre-setting:
Dimension X = 30–35 mm
In order to increase or reduce the drawing tension, the dimension X must be increased or
reduced via wing nut (2).
15.15
Checking/setting twine tension on upper twine
BP000-193
The twine tension depends on the selected twine and must be checked. A twine tension that is
set too high may cause knotter errors and place too heavy load on the parts involved. The
upper twines (3) should be held by the twine brakes (4) up to a tensile force of
100–120 N
.
Before the twine brakes will allow the upper twines to slip through, the twine tension arms (1)
should move downward against the spring force until the upper twines (3) are guided through
the eyes of the tension arms (2) almost without moving to the side. The twine tension is set via
dimension X.
Factory setting dimension X=65 mm
Checking the twine tension
Tie the upper twine (3) onto a spring balance.
Pull the upper twine (3) and read the tensile force shown on the spring balance.
Æ
If the tensile force is
100–120 N
just before the upper twine slips through, the setting is
correct.
Æ
If the tensile force is
>120 N
just before the upper twine slips through, the tensioning force
of the spring must be reduced (increase dimension X).
Æ
If the tensile force is
<100 N
just before the upper twine slips through, the tensioning force
of the spring must be increased (reduce dimension X).
Increasing tensioning force
The dimension X must be reduced via wing nut (5).
Reducing tensioning force
The dimension X must be increased via wing nut (5).
Repeat this process for all upper twines.
