Necchi Automatic Supernova Ultra Mark 2 User manual

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NECCHI Societa per A:z:ioni • P1vi1 ( :t1ll1 )
• Simb. 9961270/
GB ind . 11
NECCHI
,
automatic
supernova ultra
mark 2
Instructions for the
use and maintenance

.
LIST OF CONTENTS
Chapter 1
GENERAL INSTRUCTIONS
1. To insure perfect functioning
of machine . . . . . . .
2.
Recommended needle a n d
thread sizes . .
3. J:o insert needle
4. To thread machine . . .
5.
To thread needle with threader
6. To wind empty bobbin
7. "To remove bobbin case
8.
To insert . bobbin into bobbin
case . . . . .
9. To insert bobbin case
to. To adjust tension
11.
To regulate stitch length · .
12 . To start sewing
13. To drop feed dog
14. To remove work from ma-
chine . .
... .
15 . To change the position of
multiple needle plate
16. To connect machine to local
electricity
supply .
17.
To . run machine
18. Lighting . . . .
19.
To replace light bulb
20. Maintenance of machine
a) Oiling .. . .
b) To remove and .replace the
shuttle . . .
c) "
To clean feed dog _ and
needle plate seat . . .
d) To disassemble and reassem-
ble upper thread tension
21. Causes
of minor difficulties
Chapter 2
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SEWING WITHOUT AUTOMATIC
MECHANISM
22 . Straight sewing
23. Tacking
24. Basting
25. Zig-zag sewing
26. Zig-zag embroidery
27 .' Twin needle
28. Circular sewing
29 . Hemming
a) Straight stitch hem
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· b) Narrow rolled edges
c) Shell stitch hem .
d) Hemming and sewing on
laces . . . .
30.
Flat felled seams
31.
Overlockstitch .
32 . Hemstitching ', with d.r awn
threads . .
33.
Picot hem . . .
34.
Applique work
a) Applique with picot stitch
b) Cut-out work . . .
c) Lace
edging · . .
d) Raised stitch applique .
. e)·
Contrast work applique • .
35 , Adjustable stitching guide
36. Darning
37. Quilting
38. Embroidery and monogram
with hoop
39. Sewing on buttons
a)" Two-hole buttons
b) Four-hole buttons with pa -
rallel. stitching . .
c) Four-hole buttons with
cross-stitching .
40.
Hand-operated buttonholes
a) Raised buttonholes .
b) Flat-stitched buttonholes
4 1. Blindstitching
Chapter 3
SEWIN.G WITH AUTOMATIC
MECHANISM
42. To ;repare the cams
a) Three-cam groups
b) Loose cams . .
43.
To insert cams into machine
44. To remove cams from machine
45. To stop motion of automatic
mechanism ...
46. Use of the selector device
47.
Foot for raised scallops
48.
Automatic buttonholes .
a) To make buttonhole
b) Flat-stitched buttonholes
49. Automatic blindstitching
50. Smock- stitch . .
51.
Lever for micrometric adjust-
ment of design . .
Charts of automatic embroidery
designs .
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1

Chapter 1
GENERAL INSTRUCTIONS
NOTE: minor innovations to the sewing machine mechanisms against the
description given
in this book, may depend on continuous improvements
in the production cycles.
1. TO INSURE PERFECT FUNCTIONING OF MACHINE
Always bear in mind the following rules:
- Balance wheed must always be turned toward the operator;
-Do not try to help feeding by pulling fabric, since this action would bend
needle. The machine automatically feeds the fabric without assistance;
-Do
not operate machine with presser foot resting on feed dog unless
there is cloth in between;
- Keep a small piece of cloth underneath presser foot whenever machine
is not in use. This will prevent damage to feed dog and presser foot;
-
Always bring presser bar lever to its lowest position before starting to
sew.
3

2. RECOMMENDED NEEDLE AND THREAD SIZES
Types of Fabrics and Uasaes of Work
Very thin fabrics like muslin, chiffon, batiste,
line
linen cambrics. For lingerie, infants' wear
and delicate lace work.
Shirtings, sheetings, calicoes, silk and cotton,
light weight woollens. For general household
sewing
and all classes of general work.
l lcavy rnlirncs and silk, light weight woollens,
heavy cretonnes, muslin, brocades
and quilts.
For men's work shirts, smocks and aprons,
quilting and fabric furnishing.
Bed tickings, upholstery
and awning material,
slip
cover fabric, woollen goods, heavy woven
coating, light weight canvas.
For trousers, boys'
clothing,
work uniforms, awning and slip
covers.
Heavy tickings and woollens, heavy woven
suiting and coating, canvas and sacking. For
heavy
clothing in general, such as heavy uni-
forms, coats, trousers,
bedding supplies, bags
etc.
NE CC HI machines use Syst .
1
S x 1 or Syst. 705 need les
Sizes of ThretJd
Sizes of Needles
Mercerized
Cotton Silk Syst. 15xl Sys t. 705
80
to
150
60
to
80
40
to
60
30
to
40
24
to
30
0
and
000
Twist
A&B
Twist
c
Twist
D
Twist
I T!ist
I
10
70
14
90
I
16
100
18
110
19 120
~~
3. TO INSERT NEEDLE
- Bring needle clamp to its highest position
by turning balance wheel towards you:
Fig . 4
4
- Push button " P " (Fig. 4);
Push needle up into needle-clamp as far
as it will go and release button "P ";
IMPORTANT: flat side of needle shank
must be turned toward the ri?ht.
4. TO THREAD MACHINE
l?as~ thread through points
shown in Fig. 5. After hav-
ing passed thread between
tension discs housing • C ",
hold thread between the
two thread guides " A "
in
the same time slightly
pulling
thread towards the
right so that it pulls up
sprir;ig· i<:M,, and places
itself
astride of pook " D ".
The . threading . of spring
." M " is -automati.cally per-
forilied on the conditiqn
that tension regulating knob
be at least on " 4 ".•
Pass thread through needle
eye from left - to right leav-
ing about 4 inches hanging
free. ·
· Fig. 6
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...._r.·
"' ··.
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•
•
•
•
•
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Fig. 5
5. TO .THREAD NEEDLE . WITH . :rHREADER
..
- Bring rie" edle t~ its · highest p6sition and
thread take-up lever u E " in correspond-
ence ~ith mark Ilne • N " on front plate
(Fig. 5); .
- Bring levers " B " and « C " (Fig. 1) to
the left and remove cams;
-
Rotate button " R " (Fig. 6); hook « S "
will pass through needle eye;
-
Pas~ thread · on hook ·•·S » · .and .· draw
. threader away from needle in "tlte direc-.
tiori of the !irrow, rotating button . " R ".
NOTE:
Th~ · magn.ifyi~g glass (( L" can ' he
lowered and · turned, to see whetl:ier thread
has been proper]" ca~ght by ho . ok « S !'.
~
5
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·.

Q
Open cover " F » (Fig. 8), bring lever
" G 11 down and insert bobbin, with its
flange provided with holes towards the
left, on spindle u E ». Push spindle • E »
towards the right and cover • F » will
remain open.
-
Hold with the left and the end of the
thread · hanging from the hole and run
machine: after a few turns the thread,
held by the hand, will be automatically
cut.
When bobbin is full, the bobbin winder
automatically stops and cover « F » snaps
back into place.
-
Open cover u F », press on lever « G »
and remove filled bobbin.
Fig. 9
6
6. TO WIND EM PTY BOBBIN
- Disconnect balance wheel
u P » by turning knob u Q »
in the direction of the
arrow (Fig. 7).
-
Pass thread through points
indicated
in illustration
and insert it from the
inside to the outside into
one of
the two holes of
the bobbin flange, leaving
about 4 inches of thread
hanging free.
Fig. 8
1. TO REMOVE BOBBIN CASE
- Bring needle to its highest
position and move slide
plate to the left.
-
Remove bobbin case by lift-
ing latch « H » and pulling
it to the left.
NOTE:
The bobbin will drop
out when latch is released.
8. TO INSERT BOBBIN INTO BOBBIN CASE
- Insert bobbin into bobbin case; thread
must be wound around bobbin as indicat-
ed in Fig. lOa.
-
The bobbin flange provided with holes
must be turned toward the outside of
the bobbin case, in order that the right
direction of rotation should be insured.
-
Insert thread into groove of bobbin case.
Lift latch u H » so that bobbin is blocked
and draw thread under tension spring as
indicated
by Fig. lOb.
Let about 4 inches of thread hanging out.
H
.(b
Fig. 10
9. TO INSERT BOBBIN CASE
- Bring needle to its highest position and move slide plate to the left;
-
Insert bobbin case by latch "H » (Fig. 9) and place it on center stud of
shuttle. Finger " M » must go into notch of shuttle ring;
-Release
latch u H » and press on bobbin case until a click is heard;
- Let about 4 inches of thread hanging out.
7

T
Fig . 11
G Fig.
12
Fig . 13
Fig. 14
Fig . 15
8
10. TO ADJUST TENSIONS
- To loosen the upper thread tension,
turn button "T,, (Fig . 11) in the direc -
tion of
the arrow . By turning button "T •
in the opposite direction the tension will
be i ncreased .
NOTE : the normal value of th e upper thread
tension is indicated on the knob by a small
red disc.
-
The lower tension is increased by tighten-
ing screw « G,, (Fig. 12); it is decreas-
ed by loosening same .
a) The upper and lower threads must lock
in the centre of the fabric (Fig. 13), that
is, their tensions must be even. In this
condition, two faults may occur:
1) Even tensions, too loose. The stitches
are loose. It is then necessary to in-
crease both tensions.
2) Even tensions, too tight. The fabric
ruffles or the thread break s. It is
necessary to loosen both tensions.
b) If the upper tension is tighter than the
lower, the upper thread will lie flat on
top of fabric and the lower thread will
be pulled to the upper surface (Fig. 14)
and be visi ble there in small knots. Ad-
just tensions by tightening the lower
tension and loosening the upper one.
c)
If the lower tension is too tight, the lower
thread will lie flat on the underside of
the fabric (Fig. 15); therefore tighten the
upper tension and loosen the lower.
NOTE: When sewing on hard or thick
fabr ics, it is advisable to loosen screw • E •
(Fig. 11) and slightly move small plate « P »
in the direction opposite to that of the arrow.
11. TO REGULATE STITCH LENGTH
- Turn button « D ,, (Fig. 16); the stitch
length expressed in mm. is visible through
small window « F ,,
The normal stitch length is no . 2.
The stitch length normally required for
satin stitch (see Para. 26) is indicated by a
red square mark.
To reverse direction of sewing
Fig. 16
- Push button « R ,, completely (Fig. 16); the machine will sew in reverse
with the stitch length regulated by button « D ,, .
- The machine resume s s ewing forward as soon as button • R" is left free.
12. TO START SEWING
- Holding the thread hanging
out of the needle eye , turn
balance wheel to bring
needle to its highest posi-
tion.
-
Draw the upper thread; the
lo wer thread will be pulled
up through the hole of
needle plate .
-
Place both threads behind
presser foot.
Start s ewing slowly, holding
t he threads for the first 4-5
stitches. Fig. 17
9

13. TO DROP FEED DOG
The feed dog must be dropped for hoop
embroidery, darning and sewing on buttons.
- Turn button « P " so that one of its
prongs faces the square mark « Q »
(Fig. 18).
-
Push button u P ,. down; it will remain
in this position.
To
raise feed dog, turn button « P,, so that
one of its prongs faces the opposite mark
" S ,. (Fig. 19).
NOTE : The feed dog c an be dropped from
time to time , by leaving one of the prongs
of button " P u facing alignment mark " S ,, .
. I
QP~~
~1'.
~j)···o
Fig. 18
p--~_/
~~/'s
~-·o
~
Fig. 19
Fig. 20
14. TO REMOVE WORK FROM MACHINE
H-+~ .... '"~"
10
- Bring needle and thread take-up lever to
their highest position and raise presser
foot.
-
Draw fabric away from presser foot and
draw threads, keeping them taut, through
thread-cutter "H » (Fig. 20).
-
Cut threads and remove fabric.
The ends of both threads will be held by the
thread cutter and the machine will be ready
to perform another seam without requirin&
that the threads be held by the operator
during the first 4 or 5 stitches.
15. TO CHANGE THE
POSITION OF MULTIPLE
NEEDLE PLATE
The needle plate can be
fitted in 3 different positions
(Fig. 21)
which are used as
follows:
U - for straight and zig-zag sewing .
Fig.
21
W - for straight stitch on light fabrics (nylon, silk) with the needle position
1ever (Fig. 1) in left n otch and the presser foot for straight stitch.
Z - for twin needle sewing.
To fit
ne e dle plate in each one of the 3 pos itions:
- Dr op feed dog (see para. 13), bring needle to its highest position and
move slide plate to the left.
-
Press lever " E » and the needle plate will lift itself.
-
Turn the needle plate around until the desired position is under needle.
Locating pin " F » will enter the corresponding hole in the plate.
- Press central pin " G ». The plate will block itself automatically.
-Raise feed dog.
NOTE: The needle plate can be removed by pressing lever " E » completely.
11

16. TO CONNECT MACHINE
TO LOCAL ELECTRICITY
SUPPLY
Before inserting machine plug
in the supply current outlet,
check that machine is provid-
ed with a voltage tap-changer
as indicated in Fig . 22. Make
certain that the small bridge
" A » is inserted in the position
corresponding to local voltage.
If it is not, proceed as follows:
B Fig.
22
- Remove screw « B " and transparent cover plate.
-
Remove screw " C ,, and loosen screw " D ".
-
Turn s mall bridge « A " round so that its extremity faces the hole corres-
ponding to the local voltage.
- Ti
ghten screws « C " and « D ,, and replace transparent cover plate by
means of screw " B ».
17. TO RUN MACHINE
- Connect machine to the electric line .
-
Push switch "Z " (Fig. 23) in position
" L ,, . The red signal light « R " (Fig. 24)
will light up .
-
Start machine by pressing on foot con-
trol.
If you wish to sew with the maximum speed,
push switch " M ,, in position « MAX ". To
reduce speed, push it in position « MIN "·
NOTE: The machines for treadle operation
only are not provided with switch « M ".
12
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z M
(;}-~'$
(Q
Fig. 23
18. LIGHTING
uagu11111
0-R
In the motor operated machines, the light
can be cut out by turning shade • S » (Fig.
24).
The red signal light « R » however will con-
tinue to glow.
In the treadle operated machines, just push
switch " Z ,, (Fig . 23) in position « O• .
Fig. 24
19. TO REPLACE LIGHT BULB
- Open ftont plate.
-
Remove light bulb " P » together with
its shade from lamp holder « V • (Fig.
25).
-
Remove light bulb from shade into which
it is inserted by pressure.
- Insert riew bulb into shade and insert it
into lamp holder, by pressing slightly
against wall portion " Q » to insure elec-
tric contact.
Use only NECCHI bulbs.
Fig. 25
13
'I
1:!

20. MAINTENANCE OF MACHINE
a) Oiling
\~~il\
~
To insure easy and trouble-
free running, the machine
requires oiling. If used
continuously, it should be
oiled every two days .
~
Fig. 27
Use Necchioil
or some good-qua-
lity light sewing
machine oil.
14
Fig. 26
The oiling points are indicated in Figs. 26,
27 & 28.
Let fall about ten drops of oil in hole • A •
(Fig. 26).
From time to time also oil shuttle rim and
shuttle race (see para. 20b).
·Fig. 28
b) To remove and replace the shuttle
If machine runs hard or jams slightly, this may be due to a piece of thread
which has been caught in shuttle race. · ·
To
correct this condition, pro-
ceed as follows:
-
Bring needle to its highest
position.
-
Tilt machine back on its
hinges and extract bobbin
case.
-
Push spring " Z " sideway.s
.-
with thumb of · right band
(fig. 29): . ~- -
- Turn race plate " T "
around its hinge.
-
Extract shuttle . " R ".
T R
Fig. 29
- Carefully clean with <1 small brush and put a drop of oil in the shuttle
race . Also oil the rim of the shuttle.
-
Replace shuttle.
- Fit race plate onto the two short studs on the shuttle race and press it
· until spring blocks it in its housing.
-
Replace bobbin case and lower machine to wo~king Position.
c) · To clean feed dog and needle plate seat
- Remove needle plate (see note, para. 15).
- Clean feed dog teeth and needle plate with a small brush.
15
A,
.:.

d) To disassemble and reassemble upper
thread tension
To disassemble tension:
- Place button cc An (Fig. 30) on 0.
- Pull it out so that hook cc B" comes out
of hole "C ».
- Turn it anticlockwise, unscrewing it from
machine.
-Disassemble
parts as in Fig. 31.
----@®~@
Fig. 31
Fig. 30
Carefully clean all the sur-
faces of parts.
- Assemble parts exactly as shown in Fig. 31 and in such a way that the
• 0 n mark will be visible on button cc A ".
-
Screw the device onto the machine (press slightly and tum it anticlock-
wise;
when a click is heard, turn it in the opposite direction).
- When small hook " B " comes into contact with chrome plated plate, draw
button toward you and tum it again, bringing small hook into hole « C ».
16
21. CAUSES OF MINOR DIFFICULTIES
Needle thread breaks
- Needle is inserted incorrectly
- Upper tension is too strong
- Machine is improperly threaded
- Thread is not suitable for fabric
- Thread has knots
- Needle eye is rough or sharp
- Needle is too fine
-
Needle point is damaged, bent
or blunt
- Needle plate hole is damaged
- Machine is started at full speed
- Sewing is started with thread
take-up lever not in its highest
position
-
Bobbin case is damaged, due to
being hit by needle
- Shuttle race is damaged
Needle breaks
- Fabric is pulled by hand in such
a manner that needle hits needle
plate
- Needle is bent or blunt
Lower thread breaks
- Lower thread tension is too tight
- Bobb 'n not evenly filled
-
Bobbin is too full and does not
rotate into bobbir, case
- Dirt or lint in bobbin case
Skip stitches
- Needle is inserted incorrectly
- Needle is bent or blunt
- Thread is too heavy for the size
of
needle
- Needle is of wrong size for
thread in use
Uneven stitches
- Presser foot does not rest fully
on fabric
-
Pressure of presser foot is unsuf-
ficient
~ Feed dog is set too low
- Fabric is pulled by hand
- Stitch is too short
- Needle is too fine for thread in
use.
Machine does not sew straight stitch
- The cams have not been remov-
ed
Heavy turning or jamming of machine
- A loose piece of thread has been
caught in shuttle race
- Motor belt is too tight (adjust it
by loosening the motor fasten-
ing screws)
-
Machine is not lubricated
- Needle has blunt point
In case you cannot adjust the
trouble, call for a mechanic at your
local NECCHI Dealer
17