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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 stitching category 100, 200, 300 - the groove of the pin
(2) is in position (turned) as shown in Fig. “A”
- for stitching category 400 - the groove of the pin (2) is in
position (turned) as shown in Fig. “B”.
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 /imbus/ (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.
-
After having tightened the screw (1) check the axial
clearance of the connecting rod (3).
3.2.5
Side setting of the needle bar holder
In the correct position of the needle bar holder, when the
needle axis passes through the axis of the needle hole of the
feed dog.
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 so that the
needle is in the axis of the feed dog needle hole /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 sewing direction
The feed motion of the needle is timed with the feed-dog
motion. The needle must pass through the centre of the needle
hole on the feed-dog.
Caution ! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
-
Set the maximum permitted stitch length.
- Loosen the screw (1) of the clamping joint of the lever (2).
- Set the lowest (bottom) position of the needle bar with the
handwheel.
- In turning the needle bar holder (3) around the pin (4), set
the needle at the centre of the piercing hole of the feed dog
(5).
- Retighten the screw (1) of the lever (2) and check the given
setting.
Caution!
A faulty setting may cause bending or breaking of
needles against the feed dog.
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