JUKI DDL-9000 Engineer's Manual

−10 −
3-3 Principle of thread trimming
[Caution] This sequence shows the state that the automatic reverse feed stitching switch is turned ON at
the start of sewing and at the end of sewing.
1. Blade point of hook scoops needle thread.
2. Moving knife handles threads (recedes).
3. Moving knife catches needle and bobbin threads (advances).
Fig. 9
Fig. 10
4. Thread trimming
3-4 Sequence of thread trimming
Power
switch ON
Depress front part
of pedal
Needle goes up.
Reverse feed stitching at
sewing start
Detection
Pedal neutral
position
Needle down
stop
Depress back
part of pedal
Reverse feed stitching
at sewing end
Cam engagement
Tension release
Sewing machine rotates from
needle down to needle up.
Knife catches
thread.
Thread handling
Thread trimmer
solenoid is actuated.
Thread
trimming
Up-stop
signal
Thread trimmer solenoid OFF
End of tension release
Cam and roller are
disengaged.
Sewing machine stops
with needle up.
Low speed to
high speed

JUKI DDL-9000 Specifications

General

Brand	JUKI
Model	DDL-9000
Category	Sewing Machine
Language	English