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Fig.
7. Upper Threading (Two Needle Machines)
262-21
262-23
262-22
262-25
262-24
Fig. 8. Threading
the
Needles
V >-V\
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p/
Fig. 9. Upper Threading (Three Needle Machines)
UPPER
THREADING - MACHINES 262-20, 262-21,
262-22, 262-23, 262-24, 262-25
Turn machine pulley over toward operator until
needle bar is
at
highest
point.
Pass
each
thread from unwinder through
each
thread
ing point indicated in Fig. 7. See Fig. 8 for needle
threading of
these
machines.
UPPER
THREADING-MACHINES
262-31,
262-32
Turn machine pulley over toward operator until
needle
bar is
at
highest
point.
Pass
each
thread from unwinder through
each
thread
ing
point
indicated
in
Fig.
9. See
inset,
Fig.
9, for
needle threading.
THREADING
THE
LOOPER
(SINGLE
LOOPER
MACHINES)
Pass
thread
from
unwinder through threading points
Indicated in
Fig.
10 and 11. Inset,
Fig.
11, shows
threading on double take-up machines.
When
threading is completed, draw approximately
two inches of thread through looper eye to
start
sewing.
THREADING
THE
LOOPER
(MULTIPLE
LOOPER
MACHINES)
Poss
each thread
from
unwinder through threading
points indicated in
Fig.
12 and 13.
Before threading looper, press looper throw-out
release toward operator and swing looper carrier to the
right
as
shown in Fig. 13.
When
threading is completed, draw approximately
two inches of thread through looper eye to start sewing.
Return looper
carrier
to sewing position.
ADJUSTING
THREAD
TENSION
Regulate needle thread tension only when
presser
foot
is
down.
Tension on thread should be as light
as
possible
while
still
sufficient
to
set
the
stitch
in
material.
To regulate, turn thumb nut
at
front of
tension
discs,
as
shown In
Fig.
14 and 15.