Addition Of Upper Shaft(Needle Bar) Timing Adjustment; Needle And Hook Timing - SunStar SPS/HT-5050B1 Series User Manual

8) Upper Shaft(Needle Bar) Timing
Adjustment
ⓐ Set up the up stop position of no.126 in parameter at
94。 ~96。
ⓑ Check the up stop position of thread take-up lever on
the main shaft motor test.
ⓒ Set up the up stop position of thread take-up lever of the
upper shaft and set up the main shaft motor D Cut
direction like figure.
ⓓ Check the thread take-up lever position by repeating ⓑ
and ⓒ

9) Needle and Hook Timing

Set the stitch length at minimum and place the needle① at
2mm above the lowest position. Then the hook edge② is
positioned at the needle center. The appropriate distance
between the needle groove and the hook edge② is 0.1mm.
At this time, the hook edge② should not contact the needle
①. If the above conditions are not met, perform the
following adjustments.
8~10。
①
2mm
[ Fig. 34 ]
②
0.1mm
[Fig. 35]
31