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26. NEEDLE THREADER (CHECKING THE HOOK POSITION)
STANDARD
1 .
The clearance between the top of hook and the top of
needle eye 1s 0.
Threadmg is capable when needle
2.
mm from the needle
plate.
CHECK
Case A
Hook pos1t10n 1s too
h1
gh.
Case B
Hook pos1t1on
IS
too
low.
catches bottom part of needle eye.)
located h1gher than 8
IS
(Hook enters needle eye but tt
55
-
-
Top of
hook
A
Needle
X
X
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