Technical Manual & Parts Lists
19
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Threading the Loopers
Pass the thread from the unwinder through the threading
points as indicated. Draw approximately two inches of thread through
the looper eye with which to start sewing.
Tension
Tension on the thread should be as light as possible while still
sufficient to set the stitch correctly in material.
Needle Thread Tension
To regulate the needle thread tension, turn the thumb screw
indicated in Fig. 8 as may be required.
Important: Regulate the needle thread tension only when the
presser foot is down.
Looper Thread Tension
To regulate the looper thread tension, turn the thumb screws
as indicated in Fig. 9 as may be required.
Pressure
Pressure on material should be as light as possible while
still sufficient to insure correct feeding.
Presser Foot Pressure
To regulate the presser foot pressure, loosen the lock
screw, Fig. 10, at the rear of the machine. Tighten the thumb
screw to increase pressure; loosen to decrease pressure. When the
correct feeding pressure is attained, tighten the lock screw.
Alternating Pressers
To increase pressure, loosen the lower lock nut
and loosen the lock screw, then tighten the upper lock
nut, see Fig. 11. When the correct pressure is attained,
tighten the lock screw. Then tighten the lower lock nut.
To decrease pressure, loosen the upper lock nut and
loosen the lock screw, then tighten the lower lock nut.
When correct pressure is attained, tighten the lock
screw. Then tighten the upper lock nut.
Summary of Contents for 1345-6A
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