Preparation Before Sewing; Attaching The Needle; Removing/Fitting The Bobbin Case - JUKI DDL-9000C-S Instruction Manual

3. PREPARATION BEFORE SEWING

3-1. Attaching the needle

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
❷
❶
4) Securely tighten screw ❷.
5) Check that long groove C of the needle is facing exactly to the left in direction D.
When polyester filament thread is used, if the indented part of the needle is tilted toward
operator's side, the loop of thread becomes unstable. As a result, hangnail of thread or thread
breakage may occur. For the thread that such phenomenon is likely to occur, it is effective to
attach the needle with its indented part slightly slanting on the rear side.

3-2. Removing/fitting the bobbin case

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
D
D B
A
C
A
B
C
– 16 –
Use the specified needle for the machine. Use the
proper needle in accordance with the thickness of
thread used and the kinds of the materials.
1) Turn the handwheel until the needle bar reaches
the highest point of its stroke.
2) Loosen screw ❷, and hold needle ❶ with its in-
dented part A facing exactly to the right in direc-
tion B.
3) Insert the needle fully into the hole in the needle
bar in the direction of the arrow until the end of
hole is reached.
1) Turn the handwheel to lift the needle above the
throat plate.
2) Install the bobbin in the bobbin case so that the
thread wound direction is clockwise.
3) Pass the thread through thread slit A of the bob-
bin case, and pull the thread in direction C. By
so doing, the thread will pass under the tension
spring and come out from notch B.
4) Check that the bobbin rotates in the direction of
the arrow when thread is pulled.
5) Pinching latch D of the bobbin case with fingers,
fit the bobbin case in the hook.