Adjusting The Needle Bar Height; Adjusting The Gap Between The Needle And The Rotary Hook Tip; Adjusting Of The Needle And The Hook Timing - HIGHLEAD GC20688-BDCE Series Instruction Manual Parts Catalog

17) Adjusting the needle bar height

Set the feed adjustment dials to the minimum settings. Then adjust so that the distance from the setting surface
of the needle plate 2 to the end of the needle bar 1 is 18.5mm
when the needle bar 1 is at its lowest position.
(1) Remove the face plate.
(2) Set the feed adjustment dials to "0".
(3) Turn the pulley to set the needle bar 1 to its lowest
position.
(4) Loosen the screw 3 and then move the needle bar 1 up or
down to adjust so that the distance from the setting surface of
the needle plate 2 to the end of the needle bar 1 is 18.5 mm.
(5) Tighten the screw 3, install the face plate.
18) Adjusting the gap between the needle and the
rotary hook tip
The gap between the needle and the rotary hook tip 1 is 0.1 mm.
Set the rotary hook tip at the level of the middle of the needle. Then
adjusting the gap as follow:
(1) Loosen the screws 2 and 5 (see the picture of below).
(2) Set the hook base 6 to the fit position.
(3) Rotate the adjusting plate 3, let the hook base 6 depend on the bed plate
4.
(4) Tighten the screws 2 and 5.

19) Adjusting of the needle and the hook timing

(1) Set the stitch length to "0".
(2) Remove the needle plate.
From the library of: Superior Sewing Machine & Supply LLC
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