Brother T-8420B Instruction Manual page 24

<A>
<B>
<C>
<Bobbin case type>
1. Insert the bobbin (1) into the bobbin case (2) so that the
winding direction is as shown in the illustration.
2. There are three types of cap (2) (<A>, <B> and <C>).
Thread the thread by one of the following methods in
accordance with the shape of the bobbin case (2) being
used.
<A>
1) Pass the thread through slot (3) and under the thread
2) Pass the thread through the thread hole (8) and pull
<B> <C>
1) Pass the thread through slot (3) and under the thread
2902M
2) Pass the thread through slots (5) and (6), and then
3) Pass the thread through the thread hole (8) and pull
3. Insert the bobbin case (2) into the rotary hook.
4. Push latch (9) of the rotary hook flat.
5. Close the slide plates.
Use bobbins (1) made of light alloy as specified by
BROTHER.
3126M
3127M
2999M
T-8420B, 8450B, 8720B, 8750B
5. PREPARATION BEFORE SEWING
tension spring (4).
out about 50 mm.
tension spring (4).
through the spring (7).
out about 50 mm.
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