JUKI DDL-8100B-7 Series, Инструкция по эксплуатации

Страница: 11 / 50

– 9 –
1) The amount of oil shown in the samples on the
left should be finely adjusted in accordance with
sewing processes. Be careful not to 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
(with three sheets of paper).
Splashes of oil from the hook
1 mm
Appropriate amount of oil (large)
Appropriate amount of oil (small)
1) Turning the oil amount adjustment screw at-
tached on the hook driving shaft front bushing in
the “+” direction (in direction
A
) will increase the
amount of oil (oil spots) in the hook, or in the “–”
direction (in direction
B
) will decrease it.
2) After the amount of oil in the hook has been
properly adjusted with the oil amount adjustment
screw, make the sewing machine run idle for
approximately 30 seconds to check the amount
of oil in the hook.
A
B
(2) Adjusting the amount of oil (oil spots) in the hook
(3) Sample showing the appropriate amount of oil in the hook
2 mm
Splashes of oil from the hook
① Amount of oil (oil splashes) confirmation paper
② Position to confirm the amount of oil
(oil splashes)
Oil splashes
confirmation paper
25 mm
70 mm
(4) Confirmation of the amount of oil supplied to the face plate parts
* When carrying out the work described below in
2), remove the face plate and take extreme cau-
tion not to allow your fingers to come in contact
with the thread take-up lever.
1) If the machine has not been sufficiently warmed
up for operation, make the machine run idle for
approximately three minutes. (Moderate intermit-
tent operation)
2) Place the amount of oil (oil spots) confirmation
paper under the hook immediately after the ma-
chine stops running.
3) Confirm the height of the oil surface in the oil
reservoir is within the range between “HIGH” and
“LOW”.
4) The time required for the confirmation of the
amount of oil (oil splashes) should be completed
in ten seconds. (Measure the period of time with
a watch.)