Attaching The Needle; Setting The Bobbin Into The Bobbin Case; Adjusting The Amount Of Oil (Oil Splashes) In The Hook (Ddl-9000B-S , -M) - JUKI DDL-9000B Instruction Manual

5. 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.
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 2 , and hold needle 1 with its indented part A facing exactly to the right in direction 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.
4) Securely tighten screw 2 .
5) Check that long groove C of the needle is facing exactly to the left in direction D .
(Caution) 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.

6. SETTING THE BOBBIN INTO THE BOBBIN CASE

1) Install the bobbin in the bobbin case so that the thread wound direction is clockwise.
2) Pass the thread through thread slit A , and pull the thread in direction C . By so doing, the thread will pass under the tension spring and come out from notch B .
3) Check that the bobbin rotates in the direction of the arrow when thread is pulled.
7.ADJUSTING THE AMOUNT OF OIL (OIL SPLASHES) IN THE HOOK (DDL-9000B-S , -M )
(1) How to confirm the amount of oil (oil splashes)
1 Amount of oil (oil splashes) confirmation paper
Approx. 70 mm
* Use any paper available regardless of the material.
WARNING :
Be extremely careful about the operation of the machine since the amount of oil has to be checked by turning the hook at a high speed.
* When carrying out the procedure described below in 2), confirm the state that the needle thread from the thread take-up lever to the needle
and the bobbin thread are removed, the presser foot is lifted and the slide plate is removed. At this time, take extreme caution not to allow your
fingers to come in contact with the hook.
1) If the machine has not been sufficiently warmed up for operation, make the machine run idle for approximately three minutes. (Moderate intermittent
operation)
2) Place the amount of oil (oil splashes) confirmation paper under the hook while the sewing machine is in operation.
3) Confirm that oil exists in the oil tank.
4) Confirmation of the amount of oil should be completed in five seconds. (Check the period of time with a watch.)
1
B
2 Position to confirm the amount of oil (oil splashes)
Hook Hook driving shaft front bushing
Oil splashes confirmation paper
* Place the amount of oil (oil splashes) confirmation paper under the
hook and keep it from the hook by 3 to 10 mm to confirm the amount.
– 3 –
D
B
A
C
2
A
C
Bed
Closely fit the paper against
the wall surface of the bed.