Adjusting Feeding Amount Of Auxiliary Presser Foot - SunStar KM-1640BL-7 User Manual

■ In case of running vertically the auxiliary presser foot and the upper feed presser foot at the same height
A. Adjusting the auxiliary presser foot
- Loosen the presser bar pressure adjustment screw① and the bracket fixing screw②.
- Adjust vertically the bracket fixing screw② so that the auxiliary presser foot④ goes up by 8mm from the upper
side of the needle plate when the presser bar lifter③ is up.
- When the adjustment is finished, fix tightly the bracket fixing screw② and adjust adequately the pressure
adjustment screw①.
- After adjust height of the auxiliary presser foot④, adjust upper feed presser foot.
B. Adjusting the upper feed presser foot
- Place the thread take up at the lowest position and lower the presser bar lifter③.
- Open the rubber cover⑤ of the upper cover and loosen the clamp screw⑥.
- A different adjustment of vertical running amount between the auxiliary presser foot④ and the upper feed presser
foot⑧ is possible by adjusting the presser foot vertical move crank⑦.
- When the adjustment is finished, fix tightly the clamp screw⑥ of the vertical move crank, and place the rubber
cover⑤.
①
8.10) Adjusting feeding amount of auxiliary
presser foot
The normal proportion of feeding amount between the feed
dog and the auxiliary presser foot is 1:1. You can adjust the
feeding amount of the auxiliary presser foot in accordance
with the conditions of materials in use. As in Figure 8-11,
loosen the nut①and move upward the presser foot vertical
move control shaft②, and the feeding amount becomes
smaller. If you move it downward, the amount increases.
Be sure to tight the nut① when the adjustment is finished.
④
8mm
②
⑥
⑤
⑦
⑧
①
③
[Fig. 8-10]
②
[Fig. 8-11]
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