Duerkopp Adler 4180-5, Instructions For Service Manual

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6
1
3 4
2
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 two
positions:
- for a small hook, in position „A“ (eccentricity in the sense from
the main shaft)
- for a big hook, in position „B“ (eccentricity in the sense towards
the main shaft).
Set the connecting rod pin 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.
- Loosen the screw (1) of the connecting rod (3) pin (2).
- Set the pin into the corresponding position and tighten anew
the screw.
- The correct position is given by the flat on the pin (2), on which
the screw (1) is 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 guide 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 pin (4) shifts/.
- The guide pin (4) is to be set in such a way that the needle bar
holder moves easily.
- Tighten the screws (1 and 3).
3.2.6 Setting the needle (the needle bar holder)
in the direction of sewing (fine setting)
When shifting out the needle from the throat plate insert,
at the moment, when the needle eye is at the level of the top
surface of the throat plate insert, the distance between
the needle and the wall of the throat plate insert must be „A“ =
0.2 mm.
Caution ! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
- Shift the insert (4) up to the stop in the sense of the arrow.
- Set the maximum allowed stitch length.
- Set the handwheel to the angle of 244°.
- Loosen the screw (3) of the eccentric of the needle bar
holder.
- By turning the eccentric (6), set the required distance „A" =
0.2 mm.
- Tighten up the screw (3) and check up the setting.
Caution!
A faulty setting may cause bending or breaking of
needles against the throat plate insert.
1
2
A
1
2
B
3
3