JUKI AMS-221EN Series Engineer's Manual page 206

o Adding grease to the needle bar upper and lower bushings section, slide block section and intermediate
presser bar lower bushing section
B
(Both sides)
A
1. Open the frame cover to remove intermediate presser
auxiliary spring B
2. Apply JUKI Grease A onto periphery of needle bar
. Turn the sewing machine by hand to apply grease
onto the entire periphery of the needle bar.
Turn needle bar upper bushing grease cover
the direction of arrow A to add grease through the
grease inlet. After completion of the procedure, turn
the needle bar upper bushing grease cover
direction of arrow B to return to its home position.
Remove setscrew
ing grease hole. Put JUKI Grease A through hole
and tighten setscrew
the grease.
3. Apply JUKI Grease A also onto groove section
the slide block.
4. Apply JUKI Grease A onto periphery of intermediate
presser bar .
Remove setscrew
bar bushing grease hole. Put JUKI Grease A through
inlet . Tighten screw
with JUKI Grease A.
* The setscrew
replenishment.
It should be tightened softly to a degree that it is not
loosened due to vibration of the sewing machine.
(Caution) 1. Do not wipe off the grease applied onto
the periphery of needle bar inside the
frame. If the grease has decreased due
to cleaning, air blow or other reasons,
apply grease again without exceptions.
2. When operating the sewing machine,
turn the needle bar upper bushing
grease cover
grease inlet
3. The rear face of the needle bar crank
rod has projection
So, care should be taken to the projec-
tion. Never put your finger to the rear
face of the needle bar crank rod during
greasing procedure.
– 202 –
.
from the needle bar lower bush-
to fill inside the bushing with
from the intermediate presser
to fill inside the bushing
is used for a detent plug for grease
in direction B to close
.
with a sharp edge.
in
in the
of