SINGER 191D-30 - Manual (Page 19)

16 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List
3.16
Feed Timing
Adjustment
Loosen screws ‘2’ and ‘3’ in feed
eccentric cam ‘1’, move the feed
eccentric cam ‘1’ in the direction
of the arrow or opposite direction
of the arrow, and firmly tighten the
screws ‘2’ and ‘3’ (Figure 25).
For the standard adjustment, adjust
so that the top surface of feed dog
and the top end of needle eyelet
are flush with top surface of throat plate when the feed dog descends
below the throat plate.
To advance the feed timing in order
to prevent uneven material feed,
move the feed eccentric cam in the
direction of the arrow.
To delay the feed timing in order to
increase stitch tightness, move the
feed eccentric cam in the direction
from the arrow.
Figure 25
If the feed
eccentric cam is
moved too far,
the needle will
be broken.
Caution