Lower Threading - Brother PS100 Operation Manual

KNOWING YOUR SEWING MACHINE — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
CAUTION
●
Not winding the bobbin properly may
cause the thread tension to loosen, and
may break the needle.
1
1 Wound evenly
2 Wound poorly

Lower threading

Install the bobbin wound with thread.
CAUTION
●
Make sure you turn off the machine
while threading. If you accidentally step
on the foot controller and the machine
starts to sew, you could be injured.
Prepare the bobbin wound properly
1
before threading the lower thread.
• See page 11 for the details about bobbin
winding.
Raise the needle by turning the
2
handwheel toward you
(counterclockwise) and raise the presser
foot lever.
Remove the bobbin cover by sliding it and
3
lift toward you.
1 Bobbin cover
13
4
2
●
5
1
Put the bobbin in so the thread comes out
in the direction shown by the arrow.
CAUTION
Make sure you set the bobbin so the
thread unrolls in the right direction. If
the thread unrolls in the wrong
direction, it may cause the thread
tension to be incorrect or break the
needle.
Hold the end of the thread, push the
bobbin down with your finger, and then
pass the thread through the slit, as shown.
• If the thread is not correctly inserted through
the tension-adjusting spring of the bobbin
case, it may cause incorrect thread tension.
1
1 Tension-adjusting spring