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Removing The Bobbins; Winding The Lower Thread - Brother T-8421D Instruction Manual

Twin needle direct drive lock stitcher
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Removing the bobbins

CAUTION
• Turn off the power switch before
removing the bobbin. The machine may
operate if the treadle is depressed by
mistake, which could result in injury.
Latch type
1
Open the slide plates (1) by moving them to the
right and left.
2
Pull the rotary hook latches (2) upward, and then
remove the bobbins (3).
Bobbin case type
3
Open the slide plates (1) by moving them to the
right and left.
4
Lift up the latch (2) of the rotary hook, and then
remove the bobbin case (3).
5
Remove the bobbins.

Winding the lower thread

CAUTION
• Do not touch any of the moving parts or
press any objects against the machine
while
winding
Otherwise it may result in injury or
damage to the sewing machine.
1
Turn on the power switch.
2
Place the bobbin (1) onto the bobbin winder shaft
(2).
3
Wind the thread several times around the bobbin
(1) in the direction indicated by the arrow.
Check that the thread is not loose anywhere along
the thread path.
4
Push the bobbin presser arm (3) toward the
bobbin(1).
5
Raise the presser foot with the lifting lever.
the
lower
thread.
18

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This manual is also suitable for:

T-8722dT-8752dT-8452dT-8422d