Needle Thread Clamp Motor Origin Adjustment - JUKI LK-1900B Series Engineer's Manual

(8) Needle thread clamp motor origin adjustment

Inching operation of the needle thread clamp motor, operation of origin retrieval, and the status of needle
thread clamp encoder are displayed, and origin retrieval of the needle thread clamp motor is carried out.
A
❷
(Remarks) The description only uses the panel
diagram of the standard specification.
(Caution) This feature is available after the completion of origin retrieval of the needle thread clamp
motor with the start switch.
3) When RETURN key
( 9) Bird's nest short tail step mode
A series of action of bird's nest short tail function can be checked by the step motion.
❷
❼
❾
❽
❾ is pressed, the screen returns to the check program screen.
– 90 –
1) When DATA CHANGE key
the needle thread clamp motor is driven in the
directions of +/- for each pulse.
Position information of the needle thread clamp
encoder is displayed in section A.
2) Press EDIT key
thread clamp to each specified position.
① Standby position (front side)
② Needle thread bending position
③ Needle thread clamp position
④ Refuge position (rear side)
When READY key
two seconds, the motor position of current state
will be needle thread clamp origin.
Setting of the origin position is complete, "27" is
displayed on the screen.
1) Pressing the READY key
the bird's nest short tail function to the step mode.
2) Restore the sewing screen and press the READY
key ❷ .
3) Tread on the pedal to sew.
Sew→Thread trim→Stops before the bird's nest
short tail action.
4) Press the preparation key ❷ .
Pressing the READY key
tions in the following order.
(1) Suction nozzle is turned ON
↓
(2) Shorter-thread remaining thread trimmer is
turned ON
↓
(3) Shorter-thread remaining thread trimmer is
turned OFF
↓
(4) Suction nozzle is turned OFF
↓
(5) Presser foot goes up
5) Pressing the main power off will exit from the "Step
mode".
❼ is pressed,
❽ to drive the needle
❷ is held pressed for
❷ will change
❷ will cause ac-