Threading The Machine Head; Thread Tension; Adjusting The Needle Thread Tension; Adjusting The Bobbin Thread Tension - JUKI DDL-9000B Instruction Manual

9. THREADING THE MACHINE HEAD

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.

10. THREAD TENSION

(1) Adjusting the needle thread tension

1) Turn thread tension No. 1 nut 1 clockwise (in
direction A), to shorten the thread length re­
maining on the needle after thread trimming or
counterclockwise (in direction B), to lengthen
the thread length.
2) Turn thread tension nut 2 clockwise (in direction
C) to increase or counterclockwise (in direction
D) to reduce the needle thread tension.
1
3
9
!0
!2
!3
B
A
1
2
C
D
2
4
8
5
6
7
!1
A
3

(2) Adjusting the bobbin thread tension

1) Turn tension adjusting screw 3 clockwise (n
direction E) to increase or counterclockwise (n
direction F) to reduce the bobbin thread tension.
– 9 –
(Note) Do not pass
this thread
through
section A .
F
E