SunStar KM-2510A Manual/Parts Book page 33

25.ADJUSTING THE THREAD TAKE-UP STROKE(FIG.30)
1. When sewing heavy-weight materials, move thr-
ead guide① to the left (in direction"A") to increase
the length of thread pulled out by the thread take-up.
2. When sewing light-weight materials, move thread
guide① to the right (in direction"B") to decrease the
length of thread pulled out by the thread take-up.
3. Normally, thread guide① is opsitioned in a way
that marker line"C" is aligned with the center of the
screw.
26.PEDAL PRESSURE AND PEDAL STROKE(FIG.31)
1.Adjusting the pressure required to depress the front
part of the pedal.
1) This pressure can be changed by altering the
mounthing position of pedaling pressure adjust spring①.
2) The pressure decreases when you hook the spring
on the left side.
3) The pressure increases when you hook the spring
on the right side.
2. Adjusting the pressure required to depress the back
part of the pedal
1) This pressure can be adjusted using regulatorscrew②.
2) The pressure increases as you turn the regulator
screw in.
3) The pressure decreases as you turn the screw cut.
3. Adjusting the pedal stroke
1) The pedal stroke decreases when you insert con-
necting rod③ into the left hole.
A
Fig.
30
①
Fig.
31
6 33
B
①
C
②
③