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5. MAINTENANCE OF SAWING MACHINE
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine. In addition, attach the covers which have been removed before operation back in
place.
No.
Region
1
The area under the throat plate, area
surrounding the hook, bobbin case
and its inner portion, thread trimming
area, needle bar area, areas inside
and outside of the presser foot,
openings of the electronic control
box such as air inlet and outlet, and
the regions in which thread waste,
thread end and other stains are likely
to remain.
2
Apply grease to the upper and lower
bushing of the needle bar.
Explanation
Clean up the surface of equipment
with a tool such as an air gun. In
particular, clean up the regions in
which the aforementioned thread
waste, thread end and other stains
are likely to remain.
1. Loosen screw ❶ of the face
plate. Remove the face plate.
2. Loosen screw ❷ of the needle
❶ ❶
bar lower bushing to remove it.
3. While aligning the lubricating
hole of the grease gun with the
tapped hole in the needle bar
lower bushing, pour the grease.
4. The grease amount to be added
must exceed 0.5 cm
5. After the lubrication, tighten the
screw of the needle bar lower
bushing and put the face plate
back into place. Tighten the
screw of the face plate.
6. Apply the grease to the flat part
❷
❷
(baffle part) of the needle bar.
❸ ❸
7. Use the JUKI Grease as the
lubricating grease. Do not mix it
with other lubricating greases.
❷
– 82 –
Operating time
Eight hours
Operation for 720 hours
3
.
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