INSTRUCTION BOOK
MODEL
712T
1
SECTION I ESSENTIAL PARTS
Names of Parts ...................................................................... 2 ~ 3
Standard Accessories ...................................................................3
How to Install the Spool Pin ..........................................................4
Fundamentals of Operation ..........................................................4
SECTION II GETTING READY TO SEW
Thread and Needle Chart .............................................................5
Changing Needles ........................................................................6
Raising or Lowering the Presser Foot...........................................7
To Detach and Attach the Foot Holder .........................................7
To Snap the Presser Foot On and Off ..........................................7
Removing the Bobbin....................................................................8
Setting Spool.................................................................................8
Winding the Bobbin .......................................................................9
Inserting the Bobbin ....................................................................10
Threading the Machine ...............................................................11
Drawing up Bobbin Thread .........................................................12
Balancing Needle Thread Tension..............................................12
*
Auto-tension..........................................................................12
*
Manual Needle Thread Tension ...........................................12
Pattern Selector Dial ...................................................................13
Stitch Length Dial ........................................................................13
*
Selecting Stitch Length .........................................................13
*
Selecting Stretch Stitch Patterns ..........................................13
TABLE OF CONTENTS
Dropping the Feed Dogs .............................................................14
Reverse Stitch Lever...................................................................14
SECTION III SEWING
Straight Stitch..................................................................... 15 ~ 16
Zigzag Stitch ...............................................................................16
Overcasting .................................................................................17
Triple Stitch .................................................................................17
Blind Hemming............................................................................18
Buttonhole .......................................................................... 19 ~ 20
Tricot Stitch .................................................................................20
Zipper Application .............................................................. 21 ~ 22
Feather Stitch..............................................................................23
Stretch Stitch Patterns ................................................................23
Rolled Hem .................................................................................24
SECTION IV CARE OF YOUR MACHINE
Cleaning the Bobbin Holder ........................................................25
Cleaning the Hook Race and Feed Dog ............................ 25 ~ 26
Resetting the Bobbin Holder and Needle Plate ..........................26
Oiling the Machine ......................................................................27
Troubleshooting ................................................................. 28 ~ 29
2
SECTION l ESSENTIAL PARTS
Reverse stitch lever
Stitch length dial
Bobbin winder stopper
Bobbin winder spindle
Spool pin
Pattern selector dial
Thread tension dial
Bobbin winder thread guide
Upper thread guide
Thread take-up lever
Face plate
Thread cutter
Presser bar
Foot holder
Thumb screw
Feed dog
Needle plate
Bobbin
Needle clamp
Needle clamp screw
Needle
Slide plate
e
r
t
y
u
i
o
!0
!1
!2
w
q
!3
!4
!5
!6
!9
@2
@0
!7
!8
•
Names of Parts
1.
2.
3.
4.
5.
6.
7.
8.
9.
10
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
@1
3
23.
24.
25.
Handwheel
Stop motion knob
Presser foot lifter
@4
@5
@3
•
Standard Accessories
Screwdriver Seam ripper Lint brush
Bobbins Set of needles Oil
J: Sliding buttonhole foot G: Blind stitch foot
E: Zipper foot D: Hemmer foot C: Overedge foot
4
For Your Safety
1. While in operation, always keep your eyes on the needle,
and do not touch any moving parts such as the take-up lever,
handwheel or needle.
2. Do not run the machine:
* When making any adjustment in the needle area, such as
threading needle, changing needle, or threading bobbin,
etc.
*When attaching or removing parts.
* When cleaning the machine.
Before Using the Machine
•
Wipe the machine with a clean cloth to remove any dust or oil.
•
To replace presser foot and needle, follow the guides in the
instruction book.
•
When setting up the machine for sewing, test the stitches on a
small piece of the fabric with the threads that will be used for
actual sewing.
For Longer Life of the Machine
•
Do not expose the machine to direct sunlight for long periods
of time.
•
Do not store the machine in an area of high humidity.
•
Handle the machine with care to avoid dropping or bumping.
Setscrews
•
How to Install the Spool Pin
•
Fundamentals of Operation
Spool pin and two setscrews are packed separately to prevent
damage in transit.
After unpacking, attach the spool pin holder with a screwdriver,
as shown in illustration.
5
•
Thread and Needle Chart
SECTION II GETTING READY TO SEW
•
In general, fine thread and
needles are used for sewing
thin fabrics, and thicker
threads and needles are
used for sewing heavy
fabrics.
Always test thread and
needle size on a small piece
of fabric which will be used
for actual sewing.
•
Use the same thread for
needle and bobbin.
( To Select a Suitable Needle)
*A number indicating the size
of needle is marked on the
stem.
The higher the number, the
thicker the needle.
*A BLUE TIPPED needle is
supplied with the machine.
* Do not use any needle
which is bent or blunt.
BLUE TIPPED needle
Stem
•
When sewing stretch, very
fine fabric or synthetics, use
a BLUE TIPPED needle.
The blue tipped needle
effectively prevents skipped
stitches.
•
When sewing very fine
fabrics, use a piece of
stabilizer to prevent thread
distortion.
Needle Size
Light
weight
Crepe de Chine, Voile
Lawn, Organdy, Georgette,
Tricot
Fabrics
Threads
9
or
11
Medium
weight
Linens, Cotton, Pique,
Serge, Double Knits,
Percale
50 Silk
50 to 80 Cotton
50 to 60 Synthetic
Cotton Covered
Polyester
11
or
14
14
or
16
50 Silk
40 to 50 Cotton
40 to 50 Synthetic
Cotton Covered
Polyester
Denim, Tweed, Gabardine,
Coating, Drapery and
Upholstery Fabric
Heavy
weight
Fine Silk
Fine Cotton
Fine Synthetic
Fine Cotton Covered
Polyester
6
Needle clamp screw
•
Changing Needles
Raise the needle by turning the handwheel toward you and lower
the presser foot.
Loosen the needle clamp screw by turning it toward you.
Remove the needle from the clamp.
Insert the new needle into the needle clamp with the flat side
facing to the back.
When inserting the needle into the clamp, push it up as far as it
will go and tighten the clamp screw firmly with the screwdriver.
Needle clamp
7
The presser foot lifter raises or lowers your presser foot.
Presser foot lifter
Foot holder
Thumb screw
Thumb screw
<To Detach>
Remove the thumb screw by
turning it counter clockwise
with the screwdriver.
<To Attach>
Match the hole in the foot
holder with the threaded hole
in the presser bar.
Fit the thumb screw into the
hole.
Tighten the thumb screw by
turning it clockwise.
Red
button
q Press the red button on
the back of the foot
holder.
The presser foot will
drop off.
q
w
•
Raising or Lowering the Presser Foot
•
To Snap the Presser Foot On and Off
•
To Detach and Attach the Foot Holder
Groove
Pin
w Place the presser foot
so the pin on the foot
lies just under the
groove of the foot
holder.
Lower the presser foot
lifter to lock the foot in
place.
8
q
w
e
q
w
q Gently push the slide
plate down and slide
it toward you.
w Lift out the bobbin, as
shown.
•
Removing the Bobbin
•
Setting Spool
e Return the spool pin to its original position.
q Turn the spool pin.
w Set the spool from the bottom end of the spool pin as
illustrated.
Slide plate
9
q
i
e
r
q Turn the stop motion
knob counterclockwise to
disengage clutch.
r Insert the thread through the hole in
the bobbin from inside to outside as
shown.
t Put the bobbin on the bobbin winder
spindle, and push it to the right.
y While holding the free end of the
thread with your hand, pedal the
machine. Stop the machine when the
bobbin has made a few turns, and cut
the thread close to the hole in the
bobbin.
u Pedal the machine and wind the
thread until the bobbin stops. Move
the bobbin winder spindle to its
original position (left), and cut the
thread.
i Turn the stop motion knob clockwise
to engage clutch.
* The machine will not sew until the
stop motion knob is tightened.
Stop motion
knob
Bobbin winder
thread guide
w Draw the thread from the spool.
e Guide the thread around the bobbin winder thread guide.
•
Winding the Bobbin
t
y
u
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