Consew 227 - Relative Position between Bobbin Case and Opener; Adjusting the Height of the Presser Feet

j' 1. timing adjustment
/' ance and tighten the screws.
Fig. 25 Be sure to use perfect needle.
RELATIVE POSITION BETWEEN BOBBIN CASE AND OPENER
1. Loosen the screw (1), turn the hand
IR , wheel until the opener (2) is located at
mV I the extreme right hand position of its
^ clearance between the inside edge
^ 1 opener and the tab on the bobbin
case holder is about 0.2 mm.
HH[RBRRH|HRII| ^ After the adjustment, tighten the screw.
ADJUSTING THE HEIGHT OF THE PRESSER FEET
1. ADJUSTMENT BY THE PRESSER BAR LIFTER
Loosen the screw (1, Fig. 2) sufficiently, raise the presser bar lifter and
loosen the set screw {1, Fig. 27).
Move the lifting presser foot (4, Fig. 7) up or down as may be required
so as to get the correct height and tighten the screw.
2. ADJUSTING THE LIFT OF ALTERNATING PRESSER FEET
On the model 227, 227R, 2278 and 227BR if the height of the lifting
presser foot changes, the momentums of the lifting and vibrating presser foot
vary, thus the height of the vibrating presser foot must be adjusted.
A. Lower the presser bar lifter, holding the vibrating presser foot (5, Fig. 7),
loosen the hexagon screw (2, Fig. 27) and move the presser foot up or down
as may be required.
B. After setting the position, tighten the screw.
Normally, the momentums of the alternating presser feet are adjusted to
equal, but for piping work, it is effective to adjust less momentum of the
vibrating presser foot than that of the lifting presser foot.
From the library of: Superior Sewing Machine & Supply LLC