How To Confirm The Amount Of Oil (Oil Splashes) In The Hook - JUKI PS-700 Instruction Manual

4-13. How to confirm the amount of oil (oil splashes) in 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.
(1) How to confirm the amount of oil (oil splashes)
❶ Amount of oil (oil splashes) confirmation paper
Approx. 70 mm
* Use any paper available regardless
of the material.
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.
1) Check to make sure that the oil quantity is adequate referring to
of the oil quantity" p.
2) If the machine has not been sufficiently warmed up for operation, make the machine run idle for approxi-
mately three 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 five seconds.
(2) Sample showing the appropriate amount of oil (oil splashes)
Appropriate amount of oil (smaller)
Splashes of oil from the hook
Min. 0.5 mm
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.
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.
12.
❷ Position to confirm the amount of oil (oil splashes)
Oil splashes confirmation paper
"I-4-1. Lubricating method and check
Appropriate amount of oil (larger)
Splashes of oil from the hook
– 21 –
Max. 1 mm