Technical Manual & Parts Lists
22
Machines with Alternating Pressers
The lift of the vibrating and lifting pressers is controlled by an adjustable eccentric. To adjust, remove
the arm cover at the rear of the machine. Turn the machine pulley over toward the operator until the
feeding presser is down. Loosen the two lock screw, Fig. 17, and the two clamp screws. Insert a screw
driver into the notch of the adjusting disc, and turn the machine pulley as indicated in Fig. 17. Then
tighten the two clamp screws and the two lock screws.
When it is desirable to have either one of the pressers lift higher than the other, turn the machine
pulley over toward the operator until the lifting presser is at its highest position. Loosen the tow clamp
screws, Fig. 18, and turn the lifting rock shaft crank up or down until the desired lift of each presser is
attained. Then tighten the tow clamp screws.
Caution: Limit lift of pressers to a minimum required for the work, as this permits higher speeds.
The vibrating presser should be timed so that under normal sewing conditions, the presser foot
will seat on the material at approximately the same time the needle enters the material. This timing can
be advanced or retarded slightly depending on the type of operation being performed, such as sewing
over seams. To adjust, loosen the tow holding screws, Fig. 18, not more than one half turn. Then turn the
adjustable eccentric, Fig. 17, until the vibrating presser seats at the correct time. Securely tighten the tow
holding screws after the adjustment is made.
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