Sewing; Backtacking - Brother T-8420C Instruction Manual

6. SEWING

6. SEWING
Attach all safety devices before using the sewing machine. If the machine is used without these devices attached,
injury may result.
Turn off the power switch at the following times. The motor will keep turning even after the power is switched off as
a result of the motor's inertia. Wait until the motor stops fully before starting work.
The machine may operate if the treadle is depressed by mistake, which could result in injury.
y When threading the needle
y When replacing the bobbin and needle
y When not using the machine and when leaving the machine unattended
Do not touch any of the moving parts or press any objects against the machine while sewing, as this may result in
personal injury or damage to the machine.
Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand
is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.
6- 1. Sewing
Lower
thread

6- 2. Backtacking

23
CAUTION
1. While holding the two upper threads with your fingers, turn
2471B
2. Pull the lower threads toward you and check that they pull
3. Turn on the power switch.
4. Depress the treadle to start sewing.
Lower thread
2472B
When the reverse lever (1) is pressed during sewing, the
feed direction will be reversed. When it is released, the feed
direction will return to normal.
2986M
T-8420C, 8450C, 8720C, 8750C
the machine pulley by hand toward you until the lower
threads come out onto the feed dog.
out smoothly.