Singer Serger Professional 5 Manual

							30
To change thread type or color, clip thread near thespool.
Place new thread on stand.
Tie new thread and old thread ends together with a square knot. Clip thread tails to 2~3cm (1 inch)
length. If clipped too short, threads may come
untied.
Firmly pull both thread to test knot security.
Raise Presser foot
to release Tension discs. by lowering presser bar lifter
Pull the threads through the machine one at a time.
If threads do not pull easily, check for tangles on
thread guides or looping under thread stand.
When pulling thread through the needles, STOP
when the knot is in front of the needle.
Cut the thread, and insert it through the needle.
13. HOW TO CHANGE THREADS: TIE ON METHOD 
						

							(3/8)
9.8 mm
needle
7.8 mm
Chain stitch
(5/16)
Left needle
(13/64)
7mm
(17/64) 5mm
Right needle
3mm
(1/8)
5mm
(3/16) needle
8.8 mm
Chain stitch
(11/32)
(10/64)
(15/64)
Left needle Right needle
6.0 mm
4.0 mm
31
The stitch length dial should be set on the N
setting for most sewing conditions.
Adjust the stitch length to N~ 4 when sewing heavy weight fabrics.
Adjust the stitch length to 2~N when sewing lightweight fabrics to obtain excellent seams
without puckering.
Overedge seam width can be achieved by
repositioning the needle position and also with the
width adjustment knob.
Overedge seam width can be adjusted by changing
the needle position.
a) When using left needle.................................6 mm (15/64 inch)
b) When only right needle is used....................4 mm (10/64 inch)
c) When using chain stitch needle.................8.8 mm (11/32 inch)
Use of width adjustment knob will permit further
adjustment within the width range shown below.
a) When using left needle...............................5~7mm (13/64 ~ 17/64 inch)
b) When only right needle is used............3.0 ~ 5.0 mm (1/8 ~ 3/16 inch)
c) When using chain stitch needle............7.8 ~ 9.8 mm (5/16 ~ 3/8 inch)
4
3
N
2
Width Adjustment by Changing Needle Position
Width Adjustment with Adjustment Knob
14. HOW TO ADJUST THE STITCHLENGTH
15. HOW TO ADJUST THE SEAM WIDTH 
						

							5
6.5
N
5.5
4
N 2
1
32
As shown on the illustration, turn the dialcounter clockwise to increase width of cutting, and
clockwise to decrease width of cutting.
The presser foot pressure of this machine is
pre-adjusted at the factory to suit the sewing of
medium weight fabrics.
Most of the materials do not require adjustment of
presser foot pressure. However, there are some
instances where adjustment is necessary, such as
when sewing lightweight and heavyweight fabrics.
In such case, N for normal, 1 for the lightest pressure,
and 5 for the heaviest.
For lightweight fabric...Decrease the pressure
For heavyweight fabric...Increase the pressure
16. HOW TO ADJUST THE PRESSER FOOT PRESSURE
Width adjustment knob 
						

							33
Differential feed is a system which stretches or
gathers the fabric, when the amount of feed of front
feed dogs in relation to the rear feed dogs is changed.
The differential feed ratio ranges from 1:0.6~1:2.0.
Adjustment is made by means of the differential feed adjusting dial pictured at right.
Use of differential feed is very effective in overedging
stretch fabrics and fabrics cut on the bias.
Setting N is differential feed adjusting dial
setting for ratio 1:1.
Gathered overedge is most suited for shirring
sleeves, yokes, front and back bodices, skirt hems,
etc. in stretch fabrics such as knits and jersey before
assembling into garment.
Set differential feed adjusting dial below
setting N. Setting of adjusting dial
depends on material being sewn as well as the
amount of desired gather. Therefore, set dial to suit the
fabric and test sew before sewing your garment.
Note: For normal overedge stitching, set differential feed adjusting dial to graduation N.
0.8
0.6 N
1.5
2.0 N
0.8 0.6 2.0
1.5
To set the differential feed adjusting dial for gathering Gathered Overedge
17. DIFFERENTIAL FEED 
						

							N
0.8 0.6 2.0
1.5
34
Stretch overedge is ideal for sewing decorative
collars, sleeves, skirt hems, etc. on loosely knit and
woven fabrics.
Set differential feed adjusting lever knob above
setting N.
To sew a seam, apply gentle tension to the fabric by holding the seam lightly in front and back of the
presser foot.
Note: *if amount of stretch is not correctly set in relation to the fabric being sewn, the fabric
is apt to shift away from the needle
resulting in improperly sewn overedge
seam. In such case, reset differential feed
adjusting dial closer to the center mark.
*Be sure to reset the differential feed adjusting dial to graduation N for
normal overedge stitching.
Stretch Overedge
To set the differential feed adjusting dial for stretch 
						

							21
2
1
Caution:
Caution:
35
Open looper cover (page 12).
Pull the movable knife holder to the right as far as
it will go.
Turn the holder toward counter clockwise until the
knife clicks into a lock position.
Be sure to turn off power switch.
Open looper cover.
Pull the movable knife holder to the right as far as
it will go.
Turn the holder clockwise until the knife clicks into the
working position
Always close looper cover before operating
machine.
To place movable knife in working positionTo place movable knife in nonworking position
18. HOW TO DISENGAGE MOVABLE
UPPER KNIFE 
						

							36
To engage the spread , raise the white handle on the
spreader to insert the tip into theer
eye of upper looper.
When not threading the upper looper, the spreader
must be engaged into the upper looper eye.
When using the upper looper, the spread must beer
disengaged.
Be sure to turn off power switch.
To disengage the spreader, lower the white handle on
the spreader.
19. TO CONVERT UPPER LOOPER TO SPREADER
To Use the Spreader
To Disengage to Upper Looper
Caution: 
						

							R N R N
37
Set seam width finger knob to N to move seam
width finger to standard overedge sewing position.
Set seam width finger knob to R to retract the seam
width finger and set it for rolled hem.
Note: Be sure to push seam width finger knob as far as it will go in the direction of setting R.
Note: Be sure to push seam width finger knob as
far as it will go in the direction of setting N.
To Sew Rolled Hem
To Sew Standard Overedge
20. STANDARD OVEREDGE AND ROLLED
HEM STITCHING 
						

							38
Note: The following instructions do not apply to coverstitch. For instructions on cover stitch, see
page 49 How to Sew a Cover Stitch.
When the machine is completely threaded, bring all
of the threads across the needle plate and slightly to
the left under the presser foot.
Hold the threads and apply a slight tension.
Turn the hand wheel toward you 2 or 3 complete
turns to start the thread chain.
Lower presser foot by lowering presser bar lifter.
Continue holding the chain and press on the foot
controller until the chain is 5~7.5 cm (2~3 inches)
in length.
Place fabric under the front of the presser foot and
sew a test sample.
Note: Do not pull on the fabric while sewing as this may deflect the needle, causing it to break.
At the end of the sample, continue to run the
machine with the presser foot down until the chain
reaches 15 ~20 cm (6~8 inches) in length.
Note: In case it is difficult to chain off when chain stitching, pull the fabric lightly
backward.
Cut thread.
Note: Anytime you have rethreaded the machine always chain off and sew a text sample totest tensions and make adjustments as
necessary.
A mark to indicate the needle location is provided
on the presser foot fitted on this machine. Use
this mark as a guide when sewing.
Mark Mark
21. CHAINING OFF AND TEST
SEWING
Information 
						

							39
Tension is automatically set when seiecting the
desired stitch type with the Auto Tension Dial (ATD).
Tension may be fine tuned with the Fine Tuning Levers
according to the following variables:
1) Type and thickness of fabric
2) Needle size
3) Size, type and fibre content of thread
* Stitch length for double chain stitch should beset at over 2mm.
When the chain stitch needle thread tension is too loose;
-Move the needle thread tension fine tuning lever (blue)
toward a higher position.
-Or, move the chain stitch looper thread tension fine tuning
lever (brown) toward a lower position.
Set auto tension dial to D and
as shown on illustration
test sew on a sample of your fabric.
Needle threadTopside Underside
Chain stitch
looper thread
Medium weight
FabricRed
Blue Green
Orange Brown
Tension Dial
Topside
Underside
STITCH LENGTH
NEEDLE POSITION
SEAM WIDTH FINGER KNOB
DRIVING CULTCH POSITION
Needle thread Chain stitch
looper thread C R
2~4
1) Double Chain stitch
How to Balance Correct Balance
22. SETTINGS AND SEWINGATD:D