once
t he
t hread
i s
i nserted
i n
t he
n eedle,
i t
c ompletes
t he
t op
t hread
s et
u p
a nd
n ow
o ne
h as
t o
s et
up
t he
b ottom
t hread
u sing
t he
b obbin.
Step
I II:
S etting
u p
t he
b obbin
t hread
i n
t he
b ottom
o f
t he
m achine
The
b obbin
i s
s lacked
w ith
s ome
t hread
o n
t he
l eft
h and
s ide
a nd
t he
b obbin
d oor
i s
p op
o pened
t o
place
i t
i nside
t he
c avity.
T he
b obbin
i s
p ut
i nside
t he
c avity
a nd
t he
t hread
i s
t aken
t hrough
a
s mall
opening
i n
t he
f ront
o f
t he
c avity.
L ater,
t he
t hread
i s
t aken
o ut
t hrough
a
s mall
r ectangular
o pening
in
t he
c avity
a nd
t he
p lastic
d oor
c an
b e
c losed.
T hese
s teps
a re
p ictorially
s hown
b elow.
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