Lewis 17 - Inserting Bobbin

25. SILK: Use either "0" or "00" in the needle and either
"00'' or "000" in the bobbin.
THREADING MACHINE
9
26. For threading Models 17-10 and 24-12, see Threading
Chart on page 11. Until-thoroughly familiar with the process of
t~ding, we recommend that the take-up be at its highest point d~ring
the threading.
INSERTING BOBBIN
27. Turn hand wheel until the needle .is farthest away from
the bobbin case. Open bobbin. case latch, figure A, to discharge empty
bobbin.
28. When inserting full bobbin, be
sure that the thread unwinds· from the under
side of the bobbin, as is clearly shown in
. the· adjoining illustration. Hold the end of
the thread in the right hand anQ: insert it
in the slot on the right side ofthe bobbin
case. Leave the thread three.or four
inches Ion~ on the outside of the,l;>()b1Jin case.
With a new operator we suggest Jhat·the
needle thread be held lightly iri the h!'3-nd
and the wheel be turned by hand '!J:nt~{ the
first stitch is completed, which will draw
the bobbin thread underneath the tension
spring.
·Figure A
Note thattlu7ead unwinds
. ..
from Underside of
Bobbin.
INSERTING AND REMOVING WORK
29. See that the needle is threaded-properly ~nd that the bobbin
is inser.ted c-orrectly.· Have the needle farthest away from the pobbin
case. Open the knee press and insert the. work.
, . 30. 'To remove wor;k from the machine, fir.st make sure that the
;;;,.,:~--" final stitch has been .. s::otnpleted •. This of course means that 'the hook
_.,. , ·will have cast off the needle thread. The needle should be out of the
l),,•··,ufi
1
. . .·· ·
. ''•.!·?i\)'work and approximately as far back on its up stroke as it will go. Turn
. hand wheel by hand backwards about a quarter of a turn to cause the