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LOWER THREADING
B-38
a
Turn the main power to ON and open the
top cover.
b
Align the groove in the bobbin with the
spring on the bobbin winder shaft, and set
the bobbin on the shaft.
a Groove in the bobbin
b Spring on the shaft
c
Pivot the spool pin so that it angles upward.
Set the thread spool on the spool pin so that
the thread unwinds from the front of the
spool.
a Spool pin
b Spool cap
c Thread spool
d Spool felt
d
Push the spool cap onto the spool pin as far
as possible, then return the spool pin to its
original position.
e
While holding the thread with both hands,
pull the thread up from under the thread
guide plate.
a Thread guide plate
f
Pass the thread through the thread guide.
a Thread guide
g
Pass the thread around the pre-tension disk
making sure that the thread is under the
pre-tension disk.
a Thread guide
b Pre-tension disk
h
Follow steps g through k on page B-36
through B-37.
■ Untangling Thread from Beneath the
Bobbin Winder Seat
If the bobbin winding starts when the thread is not
passed through the pre-tension disk correctly, the
thread may become tangled beneath the bobbin
winder seat.
Wind off the thread according to the following
procedure.
a Thread
b Bobbin winder seat
CAUTION
• Do not remove the bobbin winder seat even if
the thread becomes tangled under the bobbin
winder seat. It may result in injuries.