18
2
3
4
e
d
B
C
1.1~1.4 mm
Needle's
lowest
position
D
B
5-11 Timing of needle and hook
-Choose patterns
, zigzag 7 mm.
-
Remove face plate, needle plate, shuttle
hook, front cover.
-
Take out screw (a, b, c), and take apart
arm top cover thread guide plate(A).
-
Set the needle bar at its lowest point
while sewing to the left. Place the clamp
of timing adjustment (A) around the
needle bar, tighten its screw (d) but still
allowing movement by hand. (2)
-
Place
gauge
(Height 4.0mm)(B)
between the needle bar support and
clamp, move clamp (B) to hold the
gauge (C), and tighten screw (d). (2)
-
Remove gauge (C), turn hand wheel to
lift needle bar till the clamp (B) reach the
top. (3)
-
Turn the hand wheel until the shuttle
hook holder point is on the right side of
needle, the distance between needle
and hook holder should be 1.1 ~ 1.4 mm.
(4)
If the distance is incorrect, loosen the 3
screws (e,f,g) of lower shaft gear, and
adjust shuttle hook to correct timing, and
tighten the screw. (4)
a
1
A
b
c
Summary of Contents for HZL - 353Z Series
Page 1: ...SEWING MACHINE HZL 350Z series SERVICE MANUAL ...
Page 4: ...3 2 Out look ...
Page 33: ...32 Europe 6 Circuit diagram ...
Page 34: ...33 North America 6 Circuit diagram ...
Page 35: ...030Y4B0101 EN ...
