Adjusting Of Pressure Of Presser Foot; Adjusting The Thread Tension; Adjustment Of Upper Thread Tension; Adjustment Of Lower Thread Tension - HIGHLEAD GC1998-MCDZ Instruction Manual

Materials
Thread(Ref.)
Refer to the table above, and adjust according to the stitching conditions, the material and thread
8) Adjusting of lower thread tension
(1) Lower thread tension can be adjusted by screw (A).
(2) In the case of cotton thread #60, the thread ten-
sion can be checked as the following. Hold the
end of pulled out thread and if the bobbin case
fall slowly, the tension is proper.
Heavy
Polyester
Cotton
Vinylon #30 or more
—
Medium
Polyester #50 to #60
Cotton
Vinylon #50 to #80
5)

Adjusting of pressure of presser foot

Pressure of the presser foot can be adjusted by
turning the pressure regulating thumb screw
6) Adjusting of thread tension
7)Adjusting of upper thread tension
(1) Upper thread tension can be adjusted by
tension nut.
(2)Upper thread is to be adjusted according to the lower
thread tension.
(3)For special fabric sewing with special thread, the de-
sired tension can be obtained by adjusting the strength
and operating range of thread take-up spring.
—
5
Light
Polyester
#50 to #60
thread