12
104 73 15-26
4. Take up lever
Check
When turning the hand wheel no noise should appear in the thread take up lever. If is too tight, it will be
diffi cult to turn the hand wheel. If is too loose, it will make noise while turning the hand wheel.
Adjustment
1. Remove face plate and top cover.
2. Loosen the screw (a).
3. Adjust thread take up lever(b) by pushing lever support to the right to remove excess play and tighten
the screw (a).
4. Turn handwheel in sewing direction to check for noise and movement.
5. If adjustment is too tight or too loose, proceed as per above step
3. Upper shaft axial play
Check
The axial play of the arm shaft should not be larger than 0.05 mm.
Adjustment
1. Remove the face plate and top cover.
2. Loosen 2 screws (a, b) on main shaft collar (c).
3. Pull hand wheel to the right.
4. Push main shaft collar (c) to the left against main shaft bushing (d), and tighten screws (a, b) .
5. Make sure there is no lateral play between main shaft collar and bushing.
6. Make sure main shaft rotates smoothly after adjustment. No hard spot or bind allowed.
7. If rotation of shaft is too tight, loosen screws (a, b) and proceed as per above step 3-4.
Settings
a
b
1
d
c
a
b
1