Timing Of The Vibrating Presser Foot; Adjusting The Thread Controller Spring - Consew Sewing Machine User Manual

TIMING OF THE VIBRATING PRESSER FOOT

This is the normal timing when turn the balance wheel toward you, after lowering the
presser bar lifter, the vibrating presser foot should reach the feeder earlier than the needle
eye comes to, and when the needle raises, the vibrating presser foot should leave the feeder
after the needle eye has left the feeder.
This is clue to the reason that the vibrating presser foot must tightly hold the goods
while the needle is passing the goods for avoiding irregular stitches.
To adjust this, set the lift of alternating presser feet to equal, loosen the screw (3, Fig.
23) and adjust the rotating position of the cam (4, Fig. 23) faster or slower as desired, and
tighten the screw.

ADJUSTING THE THREAD CONTROLLER SPRING

Normally, the thread controller spring (2, Fig. 2) should hold slack of the upper thread
until the needle reaches to the goods, and it should pause while rising of the needle and
passing of the upper thread through the bobbin case.
For more controller action on the thread, loosen the stop screw (3, Fig. 9) and set the
stop to the right.
For less action, set the stop to the left. Then tighten the screw.
To strengthen the tension of the controller spring, loosen the serrated nut (5, Fig. 9) and
the screw (4, Fig. 19) and turn the tension stud (6, Fig. 9) slightly to the left with a screw
driver, or to lighten the tension, turn to the right.
Then tighten the screws and nut.
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