29
AZ8600SD
6.Adjustment of sewing machine
Fig. 6-17
①
③
④
②
6.9.1 Height of needle
When the needle bar is at the highest point, ad-
just the height “N”
from the top of the stitch
plate to the needle tip to 12.0 - 12.3 mm.
(1) Loosen the screws ① and remove the logo
plate ② . (Fig. 6-17)
(2) Remove the screw ③ .
(3) Rotate the machine pulley to raise the needle
bar at the highest point.
(4) Loosen the screw ④ and move the needle bar
up or down to adjust the height.
1. Tighten the screw ④ with a tightening torque of 1.5
N･m.
2. Check the parallel setting of the needles for 2-needle
machine and 3-needle machine (See“6.9.6 Back-and-
forth position of lower looper”).
3. Apply the liquid packing to the thread of the screw
when tightening it.
AZ8600SD
AZ8620SD
N
N
Fig. 6-18
Fig. 6-19
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