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11. Adjusting the amount of oil (oil splashes)
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) Confirmation of the amount of oil in the hook
① Amount of oil (oil splashes) confirmation paper
* When carrying out the procedure described below in 2), remove the slide plate and 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 approxi-
mately three minutes. (Moderate intermittent operation)
2) Place the amount of oil (oil spots) confirmation paper under the hook immediately after the machine stops
running.
3) Check to make sure that the oil surface in the oil pan remains in the range from "HIGH" to "LOW".
4) Confirmation of the amount of oil should be completed in five seconds. (Check the period of time with a
watch.)
(2) Adjusting the amount of oil (oil spots) in the hook
A
70 mm
Oil splashes confirmation paper
❶
B
② Position to confirm the amount of oil (oil splashes)
Closely fit the paper against the wall
surface of the bed.
1) Tilt the sewing machine. Turn oil amount adjust-
ment screw ❶, which is mounted on the front
bushing of lower shaft, in the "+" direction (direc-
tion A) to increase the oil amount (oil spots), or
in the "-" direction (direction B) to decrease it.
* The oil-amount +/- indication mark is shown on
the underside cover.
2) After the amount of oil in the hook has been
properly adjusted with the oil amount adjustment
screw ❶, make the sewing machine run idle for
approximately 30 seconds to check the amount
of oil in the hook.
– 11 –
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