Owner's Manual

T-8420B, 8450B, 8720B, 8750B

5. PREPARATION BEFORE SEWING

5-2. Removing the bobbin

CAUTION

Turn off the power switch before removing the bobbin. 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.

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).

1. Open the slide plates (1) by moving them to the right and

left.

2. Lift up the latch (2) of the rotary hook, and then remove the

bobbin case (3).

3. Remove the bobbin.

2982M

3001M