Necchi Q421A, Instruction Manual

Contents

Machine Introduction 

1

Principal parts of the machine ............................................................................................... 2
Accessories .............................................................................................................................. 3

Standard ................................................................................................................................................. 3
Optional .................................................................................................................................................. 3

Connecting machine to power source ................................................................................... 4

Polarized plug information ..................................................................................................................... 4
Foot control ............................................................................................................................................ 4

Machine Setup 

5

Sewing table ............................................................................................................................. 6
Two-step presser foot lifter .................................................................................................... 6

Free arm ................................................................................................................................................. 6

Installing the extension table ................................................................................................. 7
Adjust presser foot pressure .................................................................................................. 7
Winding the bobbin ................................................................................................................. 8
Inserting the bobbin .............................................................................................................. 10
Threading the upper thread .................................................................................................. 11
Using the needle threader (depends on models)  .............................................................. 13
Replacing the needle ............................................................................................................. 14
Matching needle/fabric/thread ............................................................................................. 15
Changing the presser foot .................................................................................................... 16

Remove the presser foot ...................................................................................................................... 16
Attach the presser foot ......................................................................................................................... 16
Remove and insert the presser foot holder.......................................................................................... 16
Insert the edge/quilting guide ............................................................................................................... 16

To raise or drop the feed dogs ............................................................................................. 17
Thread tension ....................................................................................................................... 18

Sewing Basics 

19

How to choose your pattern ................................................................................................. 20
Straight stitch ......................................................................................................................... 21
Three needle position dial .................................................................................................... 21

Adjusting the stitch length .................................................................................................................... 21

Zigzag stitch ........................................................................................................................... 22

Adjusting the stitch length .................................................................................................................... 22
Adjusting the stitch width ..................................................................................................................... 22

Starting to sew ....................................................................................................................... 23
Useful skills ............................................................................................................................ 25

Reverse sewing .................................................................................................................................... 25
Sewing curves ...................................................................................................................................... 25
Sewing corners .................................................................................................................................... 26
Sewing stretch fabrics .......................................................................................................................... 26
Sewing thin fabrics ............................................................................................................................... 26
Sewing heavy fabric ............................................................................................................................. 27

Utility Stitches 

28

Stretch stitch .......................................................................................................................... 29

Straight stretch stitch ........................................................................................................................... 29

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