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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 bush-
ing of the needle bar.
Fig 1
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 and remove screw ❷ of
the needle bar upper bushing
and screw ❸ of the needle bar
lower bushing.
3. Aligning the grease hole of
❶
❶
grease gun with the tapped hole
in the needle bar upper and
lower bushings, add grease.
(See Figs. 1 and 2.)
4. The grease amount to be added
must exceed 0.5 cm
5. After the completion of oiling,
tighten the screws of the needle
bar upper and lower bushings
and return the face plate in po-
❷
❷
sition. Tighten the screw of the
face plate.
❸ ❸
6. Use the lithium based lubricat-
ing grease No. 2. Do not use
it with mixed with other type of
lubricating grease.
Fig 2
– 64 –
Explanation
3
.
Operating time
Eight hours
Operation for 720
hours
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