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1) Specification
It is the same as the specification of SPS/B(A)-1811(2211)-HS-20.
2) Adjusting the Inital Position of Two-Step Stroke Air Cylinder
Adjust the distance between the center of two-step stroke air cylinder shaft and the center of cylinder knuckle to be
122±0.3 mm.
[ Fig. 67 ]
3) Adjusting the Middle Stop Position of Upper Feed Plate
Adjust the middle stop position of upper feed plate to have efficient height for working according to the position of
sewing materials. Fit the gap between the upper feed plate and sewing materials to be 1mm.
▶ How to adjust
ⓐ Loosen the cylinder bracket fixing nut ②.
ⓑ Turn the cylinder stroke adjusting nut ① to make the middle stop position a little higher than thickness of sewing
materials. If you turn the cylinder stroke adjusting nut ① to the direction of A, the middle stop position will be higher,
but in direction of B, lower.
Fasten the cylinder bracket fixing nut ② for sure.
[ Fig. 68 ]
Cylinder Knuckle
Two-Step
Stroke Air
Cylinder Shaft
122±0.3 (For Maximum Stroke)
Upper Feed Plate
A
B
①
②
88
SPS/B(A)-1811(2211)-HS-21
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