Vertical Position Of Threader Hook - JUKI TL series Service Manual

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 .
Needle bar

15. Vertical position of threader hook

How to adjust
○ Open face cover.
(Perform confirmation 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
When hook is higher -> move needle bar guide downward
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.
Threader shaft
10.5 mm
(15.675 mm)
temporarily tighten it.
and temporarily tighten it.
❷ Threader support plate
setscrew (upper)
❸ Threader support plate
setscrew (lower)
❶ Needle bar
guide setscrew
❷ Threader
support plate
❹ Threader hook
23
– –
❶ Threader support
plate mas. asm.
❸ Threader
lever
0 mm