Instruction manual

Table Of Contents
25
KE-430B, 431B, 432B, 433B
Turn off the power switch before removing and replacing the bobbin case, otherwise the machine
may operate if the foot switch is depressed by mistake and serious injury could result.
q
30mm
Upper thread
Lower thread
Upper thread tension
(N)
Lower thread tension
(N)
Thread take-up spring
height (mm)
Thread take-up spring
tension (N)
Pre-tension (N)
Needle
Large hook
1.0 - 1.3
←←
1.4 - 1.8
Large hook
Ordinary materials
Standard
hook
#50 or
equivalent
#60 or
equivalent
0.6 - 0.9
0.2 - 0.3
6 - 8
0.15 - 0.35
0.1 - 0.3
DP × 5 #14
Denim
Standard
hook
#30 or
equivalent
#50 or
equivalent
1.2 - 1.6
0.2 - 0.3
6 - 8
0.4 - 0.6
0.3 - 0.5
DP × 17NY #19
Knitted materials
Standard hook
#60 or equivalent
#80 or equivalent
0.8 - 1.2
0.25 - 0.3
8 - 9
0.4 - 0.5
0.1 - 0.3
DP × 5#9
Use
7-5. Replacing the bobbin case and threading the thread
Pull the shuttle race cover q toward
you to open it.
Insert a new bobbin into the bobbin
case, and then pass the thread
through the slot w and pull it out
from the thread hole e. Check that
the bobbin turns in the direction of
the arrow when the thread is pulled
at this time.
Pass the thread through the lever
thread hole r, and then pull out ap-
proximately 30 mm of thread.
7-6. Sewing conditions and thread tension
w
e
r
The sewing conditions given in the above table may need to be changed depending on the article being sewn.
7. CORRECT USE
CAUTION
0109Q
0110Q 0111Q