JUKI DDL-8700-7 Engineer's Manual

2) The moving knife spreads the threads. (goed back)
3) The moving knife hooks the needle and bobbin threads
(advances).
4) The threads are trimmed.
1) The blade point of the sewing hook catches the needle thread.
(4) Theory of thread trimming
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JUKI DDL-8700-7 Specifications

General

Max Stitch Length	5 mm
Needle Bar Stroke	30.7 mm
Lift of the Presser Foot	By hand: 5.5 mm, By knee: 13 mm
Lubrication	Automatic
Needle	DB×1
Hook	Full rotary hook
Power Requirement	Single-phase 100~120V, 200~240V
Motor	Direct-drive servo motor
Weight	45 kg