How To Repair The Machine; Adjusting The Height The Needle Bar; Adjusting The Needle And The Shuttle - SunStar SPS/B-2516 Series User Manual

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HOW TO REPAIR THE MACHINE

The machine is set to be the best condition at the factory. Do not make any discrete adjustments
C C a a u u t t i i o o n n
on the machine and replace accessories approved by the company only.
1) Adjusting the height of the needle bar
When the needle bar is at its lowest position,
unfasten the needle bar holder screw ①. Adjust the
desired height by making the specified upper
carving line fit in with the needle bar bushing.
Then, tighten the needle bar holder screw ① back
on firmly.

2) Adjusting the needle and the shuttle

A. Have the lower carving line for the needle that
is applied when the needle bar goes up fit in
with the lower side of the needle bar bushing as
shown in the picture.
B. After unfastening the shuttle drive screw ①, open the inner hook pressure bar ② left to right and remove the
shuttle lace ring ③ from the (large) shuttle ④.
C. Make the shuttle hook point
facet of the shuttle drive
screw ① firmly.
D. After unfastening the (large) shuttle screw ⑤, turn the large hook adjustment shaft ⑥ to the left to right
and adjust the (large) shuttle ④ so that the needle and the shuttle hook point
each other.
E. After adjusting the (large) shuttle ④ in place, adjust the rotary direction of the (large) shuttle ④ so the
needle and the (large) shuttle ④ is 7.5mm apart from each other. Then, tighten the (large) shuttle screw ①.
[ Caution ]
For safety, make sure all the screws are tightened firmly after adjusting the (large) shuttle.
7.5mm
→ →
②
③
accord with the center of the needle. And make the needle and the front
connect each other to prevent the needle from curving. Then, tighten the drive
0.05~0.1mm → →
②
①
DP×5
DP×17
#22 and below
DP×5
DP×17
#22 and below
is 0.05~0.1mm apart from
0mm
⑤
④
DP×17
#22 and
above
[Fig. 28]
Needle Bar
Lower Bushing
DP×17
#22 and
above
[Fig. 29]
⑥
①
[Fig. 30]
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