Consew 206RB - Removing and Adjusting Tension and Thread Controller

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the tab of the hook retainer "K" (fig.lO) permitting the
needle thread loop to be drawn easily through the gap. The
thread release finger can best be adjusted by loosening
the screw "E" on the fork or alternatively the two set
screws on eccentric "M". For adjusting purposes note that
the nudging movement of the bobbin case holder must occtir
at the instant of the stitch-forming cycle when the upper
thread loop is about to pass between the tab of hook re
tainer "K" and the notch in the bobbin case holder. T^e
degree of the nudging movement of the bobbin case holder
should just be sufficient to prevent momentary contact
between tab and notch so that there is an instant of
total clearance between these two components.
Removing and Adjusting Tension and Thread Controller
i) Normal Operation. The tension and thread controller is
composed of two tension controlling components, one
assembled on the tension stud "U", (fig. 11) and the
other assembled on the thread controller "V", (fig.11).
The individtaal parts are shown in fig. 12. The spring
and discs on the tension controller place tension on the
thread when the presser foot is down. The spring in the
thread controller pulls slack out of the thread between
the time the thread take-up lever starts down and the
needle point reaches the material.
FIG. II
From the library of: Superior Sewing Machine & Supply LLC