7
3.3 Throat plate and its post
3.3.1 Description
The throat plate (1) is equal for both categories of sewing. In the throat
plate there is fixed by means of two screw (3), (4) the exchangeable
throat plate insert (2). Each category of sewing has its own insert of the
throat plate which differ one from another by the length and width of
the piercinghole.
3.3.2 Mounting and removing the throat plate and
its insert
When mounting the throat plate (1), the finger of the hook (2) must fit
into the recess (3) of the throat plate. When demouting or replacing the
throat plate insert (4), both screws (5), (7) are to be unscrewed and the
insert romoved.
Caution! Danger of injury!
Switch off the main switch! Before starting the setting
operation, wait until the motor stops!
- Turn slightly the finger (2) in the sense towards the throat plate (1).
- Place the throat plate (1) and screw in the screws (6).
- Place the insert (4) and screw in the screws (5), (7).
3.3.3 Side setting of the throat plate post
The post of the throat plate (1) is to be side set in such a way that the
axis of the hole in the insert of the throat plate (2) is at the distance A
= 0.1 mm to the right from the axis of the needle (3).
Caution! Danger of injury!
Switch off the main switch! Before starting the setting
operation, wait until the motor stops!
- Loosen the screws (4 and 5) (from the rear side of the post as well).
- Shift the post (1) in the sense required for attaining the distance A
= 0.1 mm.
- Tighten the screws (4 and 5) and check up for the correct setting.
2
A
3
4
1
5
3
1
2
6
1
3 2
4
7
6
5
4
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