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...

(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...

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...

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...

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,...

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...

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...

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...