Duerkopp Adler 4220-6, Инструкция по эксплуатации

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3
1
2
3
4
205
o
5 7
6 ~ 0,5
1
2
5
3 1
1
2
5
295
o
3 4
6 8
7
A
9
3.1.4 Angular setting of the hook (timing)
The hook is to be angularly set in such a way that the hook
point (1) is opposite the needle at the moment, when the
needle shifts by 2.5 mm from its bottom dead center. This
corresponds to the 2O5 ° on the scale of the handwheel (3).
Caution! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
- Remove the throat plate.
- Turn the handwheel (3) to the 2O5 ° and fix it with the screw
(4) which is component part ot the accessory of the machine
(tighten it carefully).
- Loosen the screws (5).
- Turn the hook into the required position.
- Set up the distance of about 0,5 mm between the gear wheel
(6) and the pin (7).
- Tighten the screws (5).
3.1.5 Protection of the needle and of the hook point
The protecting sheet (1) is to be set up in such a way that the
clearance between the protecting sheet and the needle (2) is
the least possible.
Caution ! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
- Remove the throat plate.
- Unscrew the screw (3) of the gib.
- Put the screwdriver into the hole of the screw (3) and, using
the regulating screw, set up the required clearance between
the needle (2) and the protecting sheet (1). When turning to
the right, the clearance is being reduced and vice versa.
- Check up the protecting effect in pushing against the needle
in the sense of the arrow (5). The hook point must not catch
the needle. If so, set up the protecting effect, correct
eventually the setting of the distance of the hook point
from the needle according to the paragraph 3.1.3.
- Screw in the screw (3).
3.1.6 Setting of the bobbin case lifter
The bobbin case lifter (1) is to be set in such a way, so that in
the moment, when the lifter is in its dead centre, there is a
clearing “A” between the lifter (1) and the retaining nose (2) of
the bobbin case, where the finger (3) fits onto the projection
(4) of the throat plate, „A“ = 0.7 mm for the sewing category 1
and 2, „A“ = 0.3 mm for the sewing category 3 and 4.
Caution ! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
- Remove the sheet guard of the hook post.
- On the handwheel (5), set the angle of 295 ° (the hook is in
its dead centre).
- Loosen the screw (6).
- Turn the eccentric (7) in such a way that the required
clearance between the elements (1) and (2) is attained.
- Set the height of the eccentric (7) in such a way that it is in
its highest position in retaining the minimum clearance
between the slide (8) and the fork (9).
- Tighten duly the screw (6).