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Brother BB370 User Manual

Brother BB370
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KNOWING YOUR SEWING MACHINE
15
6
While holding the end of the thread,
gently press the foot controller to wind
the thread around the bobbin a few times.
Then stop the machine.
7
Trim the excess thread above the bobbin.
1 1 cm (1/2 inch)
CAUTION
8
Press the foot controller to start.
9
When the bobbin seems full and begins
spinning slowly, take your foot off the foot
controller.
0
Cut the thread, slide the bobbin winder
shaft to the left and remove the bobbin.
When the sewing machine is started or the
handwheel is turned after winding the thread
around the bobbin, the machine will make a
clicking sound; this is not a malfunction.
The needle bar does not move when you slide
the bobbin winder shaft to the right.
CAUTION
Lower threading
Install the bobbin wound with thread.
For more details on using the quick-set
bobbin, see page 16.
CAUTION
1
Prepare the bobbin wound properly
before threading the lower thread.
See page 13 for the details about bobbin
winding.
2
Raise the needle by turning the
handwheel toward you
(counterclockwise) and raise the presser
foot lever.
3
Remove the bobbin cover by sliding it and
lift toward you.
1 Bobbin cover
Make sure you follow the instructions
carefully. If you do not cut the excess
thread completely before winding the
bobbin, when the thread runs low it may
tangle around the bobbin and cause the
needle to break.
1
Not winding the bobbin properly may
cause the thread tension to loosen, and
may break the needle.
1 Wound evenly
2 Wound poorly
Make sure you turn off the machine
while threading. If you accidentally step
on the foot controller and the machine
starts to sew, you could be injured.
1 2
1

Table of Contents

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Questions and Answers:

Brother BB370 Specifications

General IconGeneral
BrandBrother
ModelBB370
CategorySewing Machine
LanguageEnglish

Summary

IMPORTANT SAFETY INSTRUCTIONS

Electric Shock Dangers

Instructions to reduce the risk of electric shock from the sewing machine.

General Warning Instructions

Instructions to reduce risks of burns, fire, electric shock, and injury.

Work Area Safety

Guidelines for maintaining a clear and safe sewing work area.

Sewing Safety Precautions

Specific safety measures to take during sewing operations.

Machine Safety for Children

Precautions when children are present or using the machine.

Repair and Adjustment Guidelines

Procedures for troubleshooting and seeking machine repairs.

KNOWING YOUR SEWING MACHINE

Needle Inspection and Replacement

Checking needle condition and step-by-step guide for replacing it.

Presser Foot Replacement

Step-by-step instructions for changing the presser foot.

Bobbin Winding Procedure

Step-by-step guide for winding thread onto the bobbin.

Lower Threading Installation

Instructions for installing the wound bobbin and threading the lower thread.

Quick-Set Bobbin Lower Threading

Specific steps for threading the lower thread with a quick-set bobbin.

Upper Threading Procedure

Step-by-step guide for threading the upper thread through the machine.

Needle Threader Operation

How to use the automatic needle threader.

Material Selection Guide

Table and notes on choosing appropriate fabric, thread, and needle.

SEWING BASICS

Adjusting Thread Tension

How to achieve correct tension for quality stitches and troubleshoot issues.

BUILT-IN STITCHES

SEWING BUTTONHOLES AND BUTTONS

1-Step Automatic Buttonhole

Step-by-step guide for making automatic buttonholes.

Buttonhole Adjustment and Tips

Adjusting buttonholes for symmetry and handling thick seams.

Sewing Buttons

How to attach buttons using the button sewing foot.

USING ATTACHMENTS AND APPLICATIONS

APPENDIX

Troubleshooting Common Issues

Table of common issues, their causes, and how to fix them.

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