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4-10. How to check the amount of oil in the hook
1) Check to make sure that the oil quantity is adequate referring to
"4-1. Lubricating method and check of
.
2) If the machine has not been sufficiently warmed up for operation, make the machine run idle for approxi
-
mately fifteen minutes.
3) Place the amount of oil (oil splashes) confirmation paper under the hook while the sewing machine is in
operation.
4) Confirmation of the amount of oil (oil splashes) should be completed in ten seconds.
(1) How to confirm the amount of oil (oil splashes)
(2) Sample showing the appropriate amount of oil (oil splashes)
❷
Position to confirm the amount of oil (oil splashes)
❶
Amount of oil (oil splashes) confirmation paper
* Use any paper available regardless
of the material.
Approx. 100 mm
Approx.
30 mm
Oil splashes confirmation paper
10 mm
When carrying out the procedure described below, 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.
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.
1) The state given in the figure above shows the
appropriate amount of oil (oil splashes).
2) Check the oil amount (oil splashes) three times
(on the three sheets of paper), and adjust so that
it should not change.
Splashes of oil from the hook
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.
Appropriate amount of oil (State of oil spots )
