1. POSITION OF SHUTTLE HOOK
STANDARD
When z1gzag stitch is selected and the width
When needle raises from its lowest pos1tion by 4.0-4.3 mm. the hook point should meet with the side of the needle
1.
at left needle movement.
2
The clearance between the hook and needle
.
ADJUSTMENT
1.
Set the machine at z1gzag pattern.
2 . Set zigzag width at its maximum position.
3
.
Loosen three screws.
4.
Adjust the hook to achieve above two standard.
screws. .
5. T1ghten the
NOTE
Make sure two standard are ach1eved if you loosen the
�edtt
bar
3 mm
I
o
The lowest pos1t1on of needle bar
when hook
a
The measurement
b
meet w1th lhe s1de of needle
.
la-4
o-a-4
3)
IS
set at its maximum position.
IS
less than 0.1 mm and never touch each other.
screws.
po1nt
r,,
J
(i)
4 0-4.3 mm
-30-
(2/
Less than
0.
1 mm