JUKI HZL - 353Z Series, Service Manual

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5-3 Drop middle point of needle
- Choose patterns , zigzag 0 mm.
- Remove face plate.
- Loosen screw (a) of needle bar supporter.
- Turn needle bar supporter (A) forward /
backward to adjust needle.
Backward = to move needle forward
Forward = to move needle backward
- Set needle position above center of
needle plate and fasten screw (a).
a
b
A
B
2
1
10
a
A
5-2 Play of arm shaft
- Remove the face plate and arm top
cover.
- Remove the 2 screws (a, b) of arm shaft
collar (A). ---(1)
- Pull hand wheel backward.
- Push arm shaft collar (A) to left tightly
against arm shaft bushing (B), and then
fasten and secure screws (a, b). ---(1)
- Be sure proper distance between arm
shaft collar and arm shaft bushing. ---(2)
- Be sure arm shaft operates smoothly
after adjustment.
- Arm shaft collar and arm shaft bushing
being too tightly closed might cause
insufficient operation of arm shaft.
- Follow step, in order to re-adjust.
backward
forward