JUKI IP-100A Engineer's Manual page 67

Caution in disassembling
2) Removing the presser bar components
Remove the presser foot setscrew and remove the presser foot.
Loosen presser bar guide bracket screw 1 and remove presser
spring regulator 2, presser guide bar 3, presser spring 4 and
presser bar 5.
3) Removing the needle bar components
Remove the needle clamp screw, and remove the needle and
the needle bar thread guide.
Loosen needle bar guide bracket screw 6 and remove needle
bar 7.
4) Releasing the joint of the needle bar support base shaft
Insert a screwdriver from the bobbin winder unit section and
loosen setscrew 8 in the needle bar support base shaft bracket.
5) Releasing the slide resistance screw
Make sure of the dimension from the processed plane of
machine arm 9 to the head of screw !0 using the vernier
calipers. Loosen nut !2 and release the resistance of the
slide release spring.
6) Remove the needle bar support base from the machine
arm
Hold the needle bar upper metal section of needle bar support
base !1 and draw out needle bar support base !1 from the
machine arm in such a way as pulling the metal section to the
front and turn it clockwise.
* When needle bar support base !1 components are not replaced,
perform assembling by reversing the order of removing without
proceeding to further steps.
* When needle bar support base !1 components are replaced,
proceed to the work of steps after 7).
9
!2
!0
Dimension of height
of screw
63
− −
Caution in assembling