5-07
5. ADJUSTMENTS
LZ2-B850,B851
1014S
q
q
w
e
1047S
e
w
1120S
r
t
5-9. Adjusting the forward/back position of the needle bar
*
Make this adjustment if the needle bar bracket assembly
r
and joint
t
are not fixed securely.
Loosen the screw
y
while making this adjustment.
Adjust so that the needle is in the center of the needle plate hole at equal distances from the front and rear edges of the
hole.
When adjusting, also make sure that there is no longitudinal play in the needle bar and that it moves smoothly when
zigzagging.
1. Remove the presser foot while making this adjustment.
2. Loosen the two set screws (hexagonal screws 2 mm diagonally opposite each other)
q
, and then push pin R
w
or
pin F
e
to adjust.
Turn the machine pulley and check that the needle moves down into the center of the needle plate hole.
3. Securely tighten the two screws
q
.
*
After adjusting, check that there is no longitudinal play in the needle bar and that it moves smoothly when zigzag-
ging.
*
After making this adjustment, you should also carry out the adjustment in "5-10. Adjusting the right/left position of
the needle bar" (Page 5-08).
y
