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(6) Sample showing the appropriate amount of oil supplied to the face plate parts
Appropriate amount of oil (small)
Splashes of oil from the thread take-up lever
1 mm
Appropriate amount of oil (large)
Splashes of oil from the thread take-up lever
2 mm
13. 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.
❷
❶
1) The state given in the figure shows the appropri-
2) Check the oil amount (oil splashes) three times
Use the specified needle for the machine. Use the
proper needle in accordance with the thickness of
D
B
thread used and the kinds of the materials.
1) Turn the handwheel until the needle bar reaches
A
C
2) Loosen screw ❷, and hold needle ❶ with its
3) Insert the needle fully into the hole in the needle
4) Securely tighten screw ❷.
5) Check that long groove C of the needle is facing
– 13 –
ate amount of oil (oil splashes). It is necessary to
finely adjust the amount of oil in accordance with
the sewing processes. However, do not exces-
sively increase/decrease the amount of oil in the
hook. (If the amount of oil is too small, the face
plate parts will be hot or seize. If the amount of oil
is too much, the sewing product may be stained
with oil.)
(with three sheets of paper).
the highest point of its stroke.
indented part A facing exactly to the right in
direction B.
bar in the direction of the arrow until the end of
hole is reached.
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.
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