JUKI DDL-8700A-7 - Needle Attachment

– 11 –
1) Adjust the amount of oil supplied to the thread
take-up and needle bar crank
2
by turn
ing ad-
just p
in
1
.
2) The minimum amount of oil is reached when
marker dot
A
is brought close to needle bar
crank
2
by turning the adjust pin in direction
B
.
3)
The maximum amount of oil is reached when
marker dot
A
is brought to the position just op-
pos
ite from the needle bar crank by turning the
adjust pin in direction
C
.
minimum
maximum
1
2
A
B
C
1
(6) Sample showing the appropriate amount of oil supplied to the face plate parts
1) The state given in the gure shows the appropr
i-
ate amount of o
il (oil splashes). It is necessary
to nely adjust the amount of oil in accordance
with the sewing processes. However, do not
excessively increase/decrease the amount of oil
in the hook. (If the amount of oil is too small, the
hook will be seized (the hook will be hot). If the
amount of oil is too much, the sewing product
may be stained with oil.)
2) Adjust the amount of oil in the hook so that the
oil amount (oil splashes) should not change
while checking the oil amount three times (on
the three sheets of paper).
Use the specied needle for the machine. Use the
p
roper 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
w
ith 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 lament thread is used, if the indented part of the needle is tilted toward opera-
tor'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.
1
2
C
D
B
A
10. Attaching the needle
WARNING :
Be sure to turn the power OFF before the following work in order to prevent personal injury due to
unintentional starting of the sewing machine.
S plashes of oil from the thread take-up lever
1 mm
Appropriate amount of oil (large)
Appropriate amount of oil (small)
2 mm
S plashes of oil from the thread take-up lever
(5) Adjusting the amount of oil supplied to the face plate parts