sewing machine parts - davis school district · if the sewing machine does not sew properly, it is...
TRANSCRIPT
Stitch Plate
• Has guidelines to
help you stitch
straight seams at
measured distances
from the edge of the
fabric.
Presser Foot
• Holds the fabric firmly in place against the feed dogs.
• To change feet
– push the red button on the back while foot is up. The old foot will fall off.
– Place new foot under the leg so that the pin is directly under the groove on the leg.
– Lower the leg and it will grab onto the new foot.
Needle Clamp
• Holds the needle in place.
• To change a broken needle
use a screwdriver
– turn towards you to loosen.
– Remove broken needle.
– Put new needle in, flat side to the
back.
– Tighten screw.
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
Take-up Lever
• Pulls the thread from
the spool.
• Carries the thread up
and down through
the needle.
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
Tension Indicator
• Controls the
tightness or
looseness of the
thread.
• Should be set to 5 for
our class.
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
Pattern Selector
• Shows you which
pattern the machine
will sew.
• Should be set at
green stitch #1/2 for
a straight stitch.
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Winder
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
13. Stitch Width Control
Stitch Width
• Controls the width of the zig-zag stitches.
• 0 = straight stitch
(no width.)
• 5 = widest stitch.
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
13. Stitch Width Control
14. Needle Position Knob
15. Handwheel
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
13. Stitch Width Control
14. Needle Position Knob
Hand wheel
• Controls the
movement of the
take-up lever and
needle.
• Can be controlled by
power or by hand.
• ALWAYS turn
TOWARDS you!!!
15. Handwheel
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
13. Stitch Width Control
14. Needle Position Knob
16. Buttonhole Knob
Buttonhole Knob
• This dial sets the
machine to perform
the 6 steps to form a
buttonhole.
(All you have to do is
change the stitch
length to 0.5 while
the dial is still set at
0)
15. Handwheel
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
13. Stitch Width Control
14. Needle Position Knob
16. Buttonhole Knob
17. Power/Light Switch
Power/Light Switch
• Turns the machine
on and off.
• Turn to first position
to turn on machine.
• Turn to second
position to turn on
light
15. Handwheel
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
13. Stitch Width Control
14. Needle Position Knob
16. Buttonhole Knob
17. Power/Light Switch
18. Stitch Length Control
19. Backstitch Knob
Stitch Length
• Controls the length of the
stitches making them
longer or shorter.
• 1= reinforcement
stitch length
• 3.0= standard stitch
length
• 5= basting stitch
Backstitch or Reverse
• Allows the machine to stitch backward.
• Same dial as stitch length.
• Hold all the way at the top and the machine will sew backward.
• You should always backstitch when you begin and end a line of stitching to secure the thread.
15. Handwheel
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
13. Stitch Width Control
14. Needle Position Knob
16. Buttonhole Knob
17. Power/Light Switch
18. Stitch Length Control
19. Backstitch Knob
20. Stitch Color Indicator
Stitch Color Indicator
• Indicates which
category of stitch you
want to make (red or
green).
• Used with the pattern
selector.
15. Handwheel
21. Feed Dog Control
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
13. Stitch Width Control
14. Needle Position Knob
16. Buttonhole Knob
17. Power/Light Switch
18. Stitch Length Control
19. Backstitch Knob
20. Stitch Color Indicator
Feed Dog Control
• Lowers and raises the feed dogs.
• If the feed dogs are up and running the dial should be pointed towards this picture
• If the dial is pointing to this picture the feed dogs are down the fabric will not move through the machine.
15. Handwheel
21. Feed Dog Control
22. Stitch Selector Knob
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
13. Stitch Width Control
14. Needle Position Knob
16. Buttonhole Knob
17. Power/Light Switch
18. Stitch Length Control
19. Backstitch Knob
20. Stitch Color Indicator
15. Handwheel
21. Feed Dog Control
22. Stitch Selector Knob
1. Needle/Stitch Plate
2. Feed Dogs
3. Presser Foot
4. Needle Clamp
5. Thread Guide
6. Take-Up Lever
7. Stud for winding bobbin
8. Thread Tension Slot 9. Tension Indicator
10. Pattern Selector
11. Bobbin Spindle
12. Spool Pin
13. Stitch Width Control
14. Needle Position Knob
16. Buttonhole Knob
17. Power/Light Switch
18. Stitch Length Control
19. Backstitch Knob
20. Stitch Color Indicator
Front Cover—where bobbin case goes
Bobbin and Bobbin Case
• Bobbin
– Small metal spool that
holds the lower thread.
• Bobbin Case
– Holds the bobbin and
provides tension for
bottom thread.
Sewing Machine Review/Tips
• The seam allowance guidelines are found
on the stitch plate.
• The feed dogs move the fabric while you
are stitching. If you drop the feed dogs,
the fabric will not move by itself.
• The presser foot holds the fabric firmly in
place against the feed dogs.
• The thread tension controls the tightness
or looseness of the thread.
• The presser foot lever raises or lowers the presser foot. It must be lowered onto your fabric before you begin to sew. It is found on the back of your machine.
• The thread take-up lever pulls the thread from the spool pin. It must be at its highest point before you begin to sew or your machine will come unthreaded.
Thread Take-Up
Lever at Its
Highest Point
• The handwheel on the sewing machine
should always be turned TOWARD you to
raise and lower the needle. It will turn
away from you only when you backstitch.
• The bobbin case holds the bobbin. It
looks like this:
Remember, this is what a bobbin looks like:
Resolving Sewing Machine
Malfunctions
• Check whether:
– The upper and lower thread are correctly
threaded.
– The needle has been inserted correctly with
the flat side of the shank to the rear.
• If the upper thread breaks:
– The needle is blunt (not sharp).
– The upper thread tension is too tight.
If the sewing machine does not sew properly, it is usually due to incorrect use.
BEFORE you ask for help, check the following:
• If the lower thread breaks:– The lower thread tension is too tight.
– The bobbin is jammed.
– The needle is blunt or bent.
• If you have skipped stitches:– The needle is blunt, bent or incorrectly
inserted.
– A different needle is needed.
• If your needle breaks:– The needle clamp screw is not tight enough.
– The thread being used is of poor quality.
– The fabric is being pulled while needle is still inserted.