JUKI SC-956, Instruction Manual

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4-9-2. How to confirm the amount of oil (oil splashes)
* In the case of measuring the oil quantity in the hook, measure it under the "Bobbin winding
mode".
Refer to "3-5. Winding the bobbin thread [Bobbin winding mode]" p.24 for the bobbin wind -
ing mode.
* 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 five 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.)
* Use any paper available regardless of
the material.
Approx. 70mm
Approx. 25mm
Amount of oil (oil splashes)
confirmation paper
4-9-3. Sample showing the appropriate amount of oil
Minimum Maximum
1) The state given in the figure above shows the appropriate amount of oil (oil splashes). It is neces -
sary to finely 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) Check the oil amount (oil splashes) three times (on the three sheets of paper), and adjust so that it
should not change.
Oil splashing zone on
the race portion Oil splashing zone on
the race portion