Thread Trimming Sequence - JUKI ddl-8700-7 Engineer's Manual

(5) Thread trimming sequence

The front part
of the pedal
is trodden.
Power switch
"ON"
The needle
goes up.
(Caution) The above chart assumes that the switches for automatic reverse feed stitching
at the start and end have been set to "ON".
Standard adjustment
Low to high speed The back part
of the pedal
is trodden.
Detection
The pedal is
set to the
neutral position.
Reverse feed The machine
stitching at stops with its
the start. needle down.
The machine rotates
to cause the needle
to go up.
The knife hooks
the threads.
The knife spreads
the threads.
The thread
trimming solenoid
is activated.
Reverse feed
Threads are
stitching at
trimmed.
the end.
A needle-up
The cam engages
stop signal
with the roller.
ts given.
The thread tension
is released.
The thread trimming
solenoid is turned OFF.
− 13 −
Tension release
is terminated.
The cam
disengages
from the roller.
The machine stops.