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Preparation Before Sewing; Installing The Needle; Removing The Bobbin Case - Brother S-7220B Basic Operation Manual

Single needle direct drive needle feed lock stitcher with thread trimmer
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4. PREPARATION BEFORE SEWING

4. PREPARATION BEFORE SEWING

4-1. Installing the needle

Turn off the power switch before installing the needle.
The machine may operate if the treadle is depressed by mistake, which could result in injury.
3731M

4-2. Removing the bobbin case

Turn off the power switch before removing the bobbin case.
The machine may operate if the treadle is depressed by mistake, which could result in injury.
For thick materials
0798M
13
CAUTION
Front
Long
groove
3732M
CAUTION
3733M
3734M
2121M
S-7220B
1. Turn the machine pulley to move the needle bar to its
highest position.
2. Loosen the screw (1).
3. Insert the needle (2) in a straight line as far as it will go,
making sure that the long groove on the needle is at the
left, and then securely tighten the screw (1).
1. Turn the machine pulley to raise the needle until it is
above the needle plate.
2. Pull the latch (1) of the bobbin case upward and then
remove the bobbin case.
3. The bobbin (2) will come out when the latch (1) is
released.
* There is an anti-spin spring (3) inside the bobbin case.
The anti-spin spring (3) prevents the bobbin from racing at
times such as during thread trimming.
* Use bobbins (2) made of light alloy as specified by
BROTHER.

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