Beisler 1220-4 - Manual (Page 60)

Operating manual Automatic single head serging unit 1220/4
Page 6-36 © Beisler GmbH, Hösbach
5. Insert a keen knife into the guiding (4) in a way, that the
blade stands levelled with the upper edge of the stitch plate.
6. Tighten screw (3) in this position.
7. Bring the upper knife into its highest position.
8. Loosen screw (1) and let the bottom knife attachment (2)
swing at the upper knife.
9. Tighten screw (1).
6.5.12 Thread regulation for ‘Überwendlich’ grab
Pict. 37 Thread regulation for ‘Überwendlich’ grab
The position of the threat guidings and pusher depends on the sewed
material, threat and stitch type. Therefore the following setting data
must be regarded as basic values.
1. Bring the right-handed grab into its upper change point.
2. Loosen screw (1) and push threat puller (2) in a way, that a
distance of est. 32 mm exists between screw-mid and loop-
mid.