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15
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Adjustment Procedure
Results of Improper Adjustment
Checking items:
❶
Right hand needle
❷
Throat plate
* Check that the distance between the throat plate surface and the OL
right hand needle point with the needle bar at the highest point of its
stroke is 11.16 ± 0.15 mm (A) when using needle system 130/705H.
ORGAN NEEDLE HA×1SP (130/705H) #11 setting
SCHMETZ NEEDLE (130/705H 15×1H) #80 setting
How to perform adjustment:
○
Remove screw (E) of the needle threader to remove needle threader
unit (F).
○
Loosen the setscrew (B) of the needle bar connection (C) slightly.
(The needle bar should not slip down. If the needle bar slips o, refer
to the orientation of the needle bar connection.)
○
Allow the needle bar (D) to reach its highest position.
○
Move needle bar (D) up and down by hand to adjust dimension (A) is
obtained.
○
Retighten the setscrew (B).
○
After the completion of the adjustment, adjust the needle threader.
Refer to "20. Adjusting the needle bar connection guide of the
needle threader" and "21. Adjusting the needle threader hook".
Orientation of needle bar connection (C)
○
The needle bar connection should be placed with its at surface up.
If the height of the needle bar dif-
fers from the standard adjustment,
stitching failures such as stitch
skipping and thread fraying can be
caused.
If the orientation of the needle bar
connection is wrong, the needle
bar connection can interfere with
the needle bar bushing, disabling
rotation of the sewing machine.
( )
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