–
23
–
14. Position of threader support plate mas. asm.
How to adjust
○ Open face cover and remove arm cover asm.
1. Temporarily tighten
❶
threader support plate
mas. asm. with setscrews.
2. Adjust
❶
threader support plate mas. asm. so
that position of threader shaft is 10.5 mm, making
needle bar as reference. Then securely tighten
setscrews
❷
and
❸
.
15. Vertical position of threader hook
How to adjust
○ Open face cover.
(Perform conrmation with HAX1 #14 needle.)
1. Turn handwheel by hand to bring needle bar near to high-
est point. Then stop needle bar at position where
❶
needle
bar guide setscrew can be seen from adjustment hole of
❷
threader support plate.
2. Press down
❸
threader lever to lowest point and check that
clearance between top end of
❹
threader hook and top end
of needle eyelet is 0 to 0.1 mm when
❹
threader hook is
turned.
3. Insert hexagonal wrench key (1.5 mm) from adjustment hole
of
❷
threader support plate and slightly loosen
❶
needle
bar guide setscrew.
When hook is lower -> move needle bar guide upward and
temporarily tighten it.
When hook is higher -> move needle bar guide downward
and temporarily tighten it.
Perform adjustment while confirming position in terms of
needle eyelet.
When hook is out of place in lateral direction, perform correc-
tion of bend of hook with tip of a thin screwdriver or the like,
or replace
❹
threader hook with a new one.
4. When hook is adjusted to aforementioned position, securely
tighten setscrews.
Caution : Hook has to smoothly pass needles HAX1 and HLX5 #11 to #16.
❷
Threader support plate
setscrew (upper)
❸
Threader support plate
setscrew (lower)
❶
Threader support
plate mas. asm.
❶
Needle bar
guide setscrew
0 mm
❸
Threader
lever
❷
Threader
support plate
❹
Threader hook
Needle bar
Threader shaft
10.5 mm
(15.675 mm)
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