Threading 4/3 Thread Ol; Lower Looper - JUKI MO-3500 Instruction Manual

2-needle, 2/3/4-thread overlock sewing machine
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Threading 4/3 Thread OL

10
9
10
25
2
Thread
guide No. 1
3
4
5
1
1
Threading
change-
over lever
8
7
20-
30cm
6
Lower looper thread, red markings
Switch the machine off (power switch"0")
Place the spool on the spool holder pin as illustrated.
(1) Raise the threading changeover lever in the direction
of the arrow.
Turn the handwheel toward you until it clicks.
(The threading pipe is connected.)
(2) Thread the thread guide which is located just above
the spool from back to front.
At this time, fit the thread firmly in the groove.
(3) Thread the thread guide No. 1.
(4) Pull the thread by both hands and thread the thread
guide.
(5) Thread the thread guide.
(6) Pull out the thread by 20 to 30 cm to let it sag inside
the looper cover.
(7) Pass the top end of thread through threading hole by
1 to 2 cm.
(8) Press the air-control pushbutton.
(9) Check to be sure that the thread comes out from the
top end of the lower looper.
(10) Bring the pulled-out thread down from above the up-
per looper to route it under the presser foot and pull it
out from its rear.
Note:
If the upper or lower looper thread breaks during sewing,
re-threading is necessary. Remove both the broken and
unbroken looper threads. Then, set the threading change-
over lever to the threading side to carry out threading of
the upper and lower loopers.

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