Duerkopp Adler 4220-6, Инструкция по эксплуатации

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6
1
3
4
2
A
2
1
1
2
3
A
3.2.4 Angular setting the pin of the thread
mechanism
The hinged pin (2) of the connecting rod (3) can be set in
three positions (the pin has got 3 flats ground for the screw):
- for the hook of small diameter (value “A” – minimum)
- for the hook of large diameter , sewing category 100 and
200 (value “A” = medium)
- for the hook of large diameter, sewing category 300 and
400 (value “A” – maximum)
The value “A” is to be measured in the bottom position of the
take-up lever. Set the pin of the connecting rod as follows:
Caution! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
- Remove the front guard.
- Set the lowest (bottom) position of the take-up lever.
- Loosen the screw (1) of the pin (2) of the connecting rod (3).
- The position of the take-up lever is changed when turning
the pin (2).
- Set the pin (2)into the corresponding position and tighten
anew the screw (1).
The correct position is given by the flat on the pin (2), on
which the screw (1) is to be tightened.
3.2.5 Side setting of the needle bar holder
The correct position of this holder is in such case, when the
needle bar is lined up with the presser-foot bar. The needle bar
holder can be set as follows:
Caution! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
- Loosen the screw (1) of the pin (2).
- Loosen the screw (3) of the fixing pin (4).
- In shifting the pin (2) set the needle bar holder on the
measure „A“ = 7.5 mm (distance of the front faces of the
arm and of the needle bar holder) /at the same time the
fixing pin (4) shifts/.
- Tighten the screws (1 and 3).
3.2.6 Setting the needles (the needle bar holder)
When moving the needles through the throat plate, the needles
must pass through the centre of the holes in the insert of the
throat plate.
Caution ! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
- Using the handwheel, set the needles in the position, when
the needles starts passing into the the throat plate.
- Loosen the screw (1) fixing the needle bar holder.
- Moving the needles in the longitudinal direction – around
the pin (2), set the needles into the axis of the holes.
- Tighten the screw (1) and check the given setting.
Caution!
A faulty setting may cause bending or breaking of
needles against the throat plate insert.