Throat Plate And Its Post; Description; Mounting And Removing The Throat Plate And Its Insert; Side Setting Of The Throat Plate Post - Duerkopp Adler 4181i-3 Instructions For Service Manual

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3.3 Throat plate and its post

3.3.1 Description

The throat plate (1) is equal for all categories of sewing. In the throat
plate there is fixed by means of two screw (3) 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) 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).

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).
- 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.