22
SC-700 Series
[Fig. 32]
11) Feed Cam Adjustment
The timing of the feed dog and needle is adjusted by turning the feed cam① up and down. When the pulley is turned such
that the feed dog is lowered so that the top of the feed dog is aligned with the top of the needle plate, the lower needle hole
will come in direct line with the top of the feed dog. This is the standard position.
A. To have the appropriate amount of tension in the thread, make the feed dog movement a little slower than the needle
movement. To do this, loosen the feed cam fixing screw② and turn the feed cam① in the opposite direction of the arrow.
Then, tighten the feed cam fixing screw②.
B. To prevent material jam, make the feed dog movement a little faster than the needle movement. To do this, loosen the
feed cam fixing screw② and turn the feed cam① in the arrow direction and then tighten the feed cam fixing screw②.
Needle
Needle Plate
Feed Dog (standard position)
(When the feed dog is fast)
(When the feed dog is slow)
SC-700 Series
12) Adjustment of trimmer timing
Turn the pulley to lift the needle bar to the highest position and manually operate the trimmer lever to place the end of the
moving blade between the needles as in the figure. To this end, loosen the tightening screw and adjust the position of the
trimmer.
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