Adjusting Height Of The Needle Bar - JUKI LZ-2290C-F Instruction Manual

4) Turn ON/OFF the power to return from the hook adjusting mode to the normal sewing mode.
* Sewing machine does not work even when the front part of the pedal is depressed during the hook ad-
justing mode.
* Needle throwing works by turning the handwheel by hand.
* Needle bar moves when the set value is changed at needle UP position.
It is possible for zigzag width and position of the stitch base line to set up to the width of 10
mm regardless of the max. zigzag width limitation at the time of the hook adjusting mode.
When using the hook adjusting mode for the machine to which presser foot, gauge, etc. are
attached, be very careful in performing the adjustment.

7-2. Adjusting height of the needle bar

WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
❶
1) Set the zigzag width to "0". Bring the needle to the
2) Remove the presser foot, throat plate, semicircle
A
3) Place a semicircle plate on the plane, to which the
❷
– 125 –
center of the zigzag stroke.
plate and feed dog.
throat plate is to be attached, of the bed. Loosen
setscrew ❷ , and adjust so that from the top surface
of semicircle plate A to the bottom end of the nee-
dle bar is as high as "1" of timing gauge ❶ .
1. Thickness of the semicircle plate is
different from that of the throat plate. Be
sure to use the semicircle plate when
adjusting the height of the needle bar.
Be sure to perform the adjustment with
zigzag width set to zero and with the nee-
dle positioned at the center of the zigzag
stroke.
2. Use the timing gauge on which the
indication "E" is engraved which has
been supplied as accessories. (Part No.
22536502)