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1 Needle thread draw-out device (Thread trimmer type only)
This device draws out needle thread at the time of thread trimming.
2 Wiper switch (WB/CB type)
This switch is used to wipe needle thread after thread trimming from the cloth by means of the wiper
signal which is output from the PSC box.
3 Thread take-up cover
This is a cover to protect the human body from the contact with the thread take-up.
4 Finger guard
This is a guard to protect the human body (mainly fingers) from the contact with needle.
5 Thread tension controller
6 Control box
This box contains circuit to control sewing machine and motor, output circuits to activate respective
outputs (thread trimming solenoid, reverse feed stitching solenoid, etc.), pedal sensor to detect pedal
action, and power circuit to activate respective functions.
7 Pedal
This pedal performs sewing machine speed control, thread trimming action, presser lifting action (for
AK121 only), etc. by operation of depressing the front part of pedal or the back part of pedal.
8 Knee lifter lever
9 Power switch
This is the power switch for motor, PSC, operation panel, etc.
!0 TB switch
This is an operation switch to perform reverse feed stitching by means of the TB switch.
!1 Stitch length dial (Excluding A-SR type)
This is a dial to adjust normal feed amount.
!2 Condensation dial (Excluding A-SR type)
This is a dial to adjust reverse feed amount.)
!3 Operation panel
This panel is used for setting automatic reverse feed stitching, pattern stitching, zigzag width, etc.
!4 Bobbin winder
This is a bobbin winder which is built in the machine head.
!5 Tension controller No. 1
!6 Thread stand
!7 Oiling inlet (For A-SS, A-SU and A-SR only)
This is the oiling inlet for hook lubrication. (For A-SS and A-SU, A-SR only)
!8 Reverse feed stitching lever
!9 Mirror switch
This is an operation switch to inverse scallop pattern or custom pattern by means of the mirror switch.
@0 Handwheel
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