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010
TWO NEEDLE, THREE OR
FOUR THREAD CONVERTIBLE
OVERLOCK MACHINE WITH
DIFFERENTIAL FEED
INSTRUCTION
MANUAL
xxxxxxxxxxxxxxxxxxxxxxxxxxxx:
This booklet has been written for you, to help you use and
enjoy fully your overlocking machine.
Before you start to use this machine, please take a few
minutes to study this booklet. You will find it will be time
well spent in understanding your machine.
If you have any questions regarding the use of your
overlocking machine please do not hesitate to contact
your dealer or ourselves.
WHITE SUPERLOCK SEWING MACHINE
Record in space provided below the Serial No. and Model
No. of this appliance.
The Serial No. is located Rear of arm.
The Model No. is located Rear of arm.
Serial No.
Model No. 228
Retain these numbers for future reference.
WHITE SEWING MACHINE CO.
Cleveland, Ohio
U.S.A. 44111
Scarborough, Ontario
Canada MIP 2G1
TABLE OF CONTENTS
1. KNOWING YOUR MACHINE
Identification chart
Parts list
Setting up your machine
Foot control, Power/light switch, Opening front
cover, Opening and closing side cover, Thread
guide pole, Adjusting machine balance
Preparation for threading
Extension plates and spool holders, Spool caps,
Spool nets, Fitting the needle(s), Needle, thread
and fabric chart
2 3
4
5 6
-
-
7 9
-
2. STARTING TO SEW
Threading your machine
10
Threading upper looper
11
Threading lower looper
12
Threading needles
13
Helpful hints
Replacing thread spools, Cutting needle thread(s)
14
Testing stitch
15- 17
Adjusting thread tensions
18
Adjusting stitch length
19
Differential feed
19
Positive differential feed
19
Negative differential feed
20
Setting differential feed
21
Adjusting overlock stitch width
21
Changing presser foot and needle plate
Machine adjustment chart for narrow and rolled hems... .22
Basic techniques
23
Turning outside corners
23
Turning curved edges
23
Removing stitches from fabrics
24
Corded overlock
24
Decorative effects
Pin tucks, Decorative braid
25
Narrow and rolled hems
26
Differential feed, applications
Puckering, Wavering, Gathering
3. CARING FOR YOUR MACHINE
Replacing moving cutter
Changing light bulb
Cleaning and oiling
27
27
28
4. CHECKING PERFORMANCE PROBLEMS
Specification of machine
29
29
5. OPTIONAL ACCESSORIES
30-32
1. KNOWiNG YOUR MACHINE
IDENTIFICATION CHART
©
1.
2.
3.
4.
5.
6.
7.
8.
9.
2
Lower looper thread tension control
Upper looper thread tension control
Right needle thread tension control
Left needle thread tension control
Needle thread guide
Release lever
Protection cover
Thread guide pole
Tension release lever
10.
11.
12.
13.
14.
15.
16.
17,
Extension plate
Spool pin base
Hand wheel
Plug connector socket
Light and power switch
Front cover
Foot control
Accessory case
C.)
-
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PARTS LIST
AN parts listed may be obtained from your
nearest dealer.
When ordering, please give:
Screw driver Ilarge>
No, 1627
Spanner
No. 11449
1. The model and serial number of your
machine, which you will find on the
identification plate, at the back.
2. The part number and description.
Brush
No. 11450
Tweezers
No. 11556
Screw driver (smalll
No. 1628
Needles
No. 11550
Oiler x 2
No. 1613
Machine cover
No. 11513
4
Spool cap x 4
No. 11423
Moving cutter
No. 11682
cE
Extension plate x 4
No. 6106
Detachable cord
guide
No. 11497
N
N
Spool holder
No. 11401
)<
4
Spool net x 4
No. 6758
SETflNG UP YOUR MACHINE
1. Set your machine on a sturdy, flat surface.
2. As your machine has been thoroughly oiled
at the factory, be sure to wipe the needle
plate area and bed plate carefully before
sewing a garment. It is wise to practice on a
scrap of fabric so any surplus oil is absorbed.
3. FOOT CONTROL
Push foot control plug into the connector
socket at the bottom right-hand side of
the machine.
4. POWER/LIGHT SWITCH
Your machine will not operate unless the
power/light switch is turned on. This
same switch controls both the machine
power and sewing light. When leaving
your machine unattended, the machine
MUST be switched off or the plug
removed from the socket-outlet.
When servicing the sewing machine,
removing covers or changing lamps, the
machine MUST be disconnected from the
supply by removing the plug from the
socket-outlet.
5. OPENING FRONT COVER
To open front cover, pull it towards you as
illustrated.
It will latch automatically when closed.
6. OPENING AND CLOSING SIDE COVER
1. Raise presser foot by presser foot lever.
2. Pull release lever towards you.
3. To close side cover, just push it back.
5
7, THREAD GUIDE POLE
Extend thread guide pole to its highest point.
Place threads on spool pins and draw them
through the guides from rear to front.
8. ADJUSTING MACHINE BALANCE
To compensate for any uneveness on your
working surface, the machine is fitted with
an adjustable rubber stud.
(1) Push release lever towards you to open
side cover.
(2) Adjust the height of the rubber stud by
turning the screw.
To lower the rubber stud, turn the
screw anti-clockwise.
Rubber stud
6
FOR THREADING
PREPARATION
L
TES AND SPOO
EXTENSION PLA
HOLDERS
Cone type thread
place the
ool holders and
Remove the sp er spool pins beforehand.
ov
extension plates
ber spool
ools use the rub
sp
ne
co
For large
, and for
top
the
de end at
holders with the wi
rubber spool
e
sam
the
top.
small ones, use
narrow end at the
holders but with the
plate
SPOOL CAPS
ce the
stic cotton reels, pla
When using dome spool pin. Use the spool
reel directly on to the place.
in
cap to keep the reel
Thread comes
oft the top
SPOOL NETS
d or bulk
r (filament> threa
Spools of polyeste
from the
ely to work loose
nylon thread are lik ing, causing tangling or
spool pin during sew g. To prevent this, use
din
irregular thread fee ed to keep the spool in
vid
pro
t
ne
l
oo
sp
the
,
place as illustrated
Net
Spool
Spool
7
F[TTING THE NEEDLE(S)
Needle clamp
Raise needle bar to its highest point b
turning hand wheel towards you, but leave
presser foot down.
Loosen needle clamp screw with small
screwdriver to remove old needles. Place
new needles with FLAT SIDE AWAY FROM
YOU, into the groove of the needle bar
making certain it is up as far as it will go
Tighten the needle clamp screw securely.
Flat
side
away
from
you.
8
NEEDLE, THREAD AND FABRIC CHART
Use HA x 1 SP, HA xl (130/705 H) Needles. (SHARP POINT>
FABRIC
COTTON
LINEN
I
THREAD
Light Weight:
Organdie, Lawn, Gingham
Cotton No. 00
Heavy Weight:
Oxford, Denim, Cotton Gabardine
Polyester
No. 60.50
Cotton No. 60
Light Weight:
Tropical, Wool, Poplin
Polyester
No 80
Cotton No. 60
Serge, Gabardine, Flannel
Polyester
No.80-60
Cotton No.60
Heavy Weight:
Velours, Camelhair, Astrakhan
Polyester
No. 60 50
Cotton No. 60
Light Weight:
Georgette Crepe. Voile, Satin
Polyester
No. 100 80
Cotton No. 120-80
WOOL
SYNTHETIC
FIBRE
Heavy Weight:
Taffeta, TwilIs, Denim
-
I
j
90(14)
for general sewing
75 lii)
for light weight
fabrics
Polyester
No. 60
Cotton No. 60
Tricot
Polyester
No.80 60
Cotton No. 80-60
Jersey
Polyester
No.60 50
Cotton No. 60
Wool
Polyester
No.60-50
Bulk Nylon
KNIT
NEEDLE
cking. Polyester thread, for example,
Synthetic threads are recommended for ordinary overlo
fabric.
is very useful for different types of
loopers will use about twice the amount of
NOTE: Keep in mind that the lower and upper
purchasing thread for sewing, therefore,
When
thread than the needle thread.
sufficient for your requirements.
especially if it is an unusual color, you should buy
9
2. STARTING TO SEW
THREADING YOUR MACHINE
s,
Wrong threading may cause skipped stitche
ms.
proble
other
or
,
breaking threads
Try to master the correct threading before
moving on to test sewing.
Threading must be carried out in the
sequence of Upper Looper— Lower Looper—
Needle.
THREADING UPPER LOOPER
sewin
To re-thread lower looper while 9
ther
first,
eye
needle
from
remove thread
e
re-thread the lower looper. This will prev
tangling.
Open the front cover and the side cove
beforehand.
Raise needle bar to its highest point b
turning hand wheel towards you.
“---‘I
Feed the thread through the
thread guide as illustrated.
Pass the thread through
upper looper eye, leaving
an excess length of
about 10 cm,
Press down tension release
lever and, holding it in this
position, lead the upper thread
through the slot, making sure
the thread passes between the
tension discs.
10
THREADING LOWER LOOPER
Pass the thread
lower
through
looper eye, and
hook it around
part A as indi
the
by
cated
Leave
arrow.
cm.
10
about
extra thread.
Feed the thread through the
thread guide as illustrated.
/1
I
While pressing down and hold
ing tension release lever, pull
the lower thread through righthand tension slot.
J
11
THREADING NEEDLES
Feed the thread through the
thread guide as illustrated.
4
-
-
Li
While pressing down and hold
ing tension release lever at its
down position, draw the needle
threads through left-hand ten
sion slot.
Thread the needles from
front to back through
pull the
needle eye,
threads towards the back
passing along the right
side of presser foot,
leaving an extra length
of about 10 cm.
Draw the thread through the
thread guide as illustrated.
12
HELPFUL HINTS
REPLACING THREAD SPOOLS
When replacing thread spools, the following
steps may be helpful for quick changeover.
1. Cut off existing threads near the spools.
Tie the cut ends thread from new spools.
2. Raise presser foot.
3. Lower needle bar to its bottom position
by turning hand wheel away from you.
Pressing down and holding tension
release lever, carefully pull the existing
looper threads until the connecting knots
are under the presser foot. Stop pulling
the needle thread when the knot ap
proaches the needle eye, cut off the knot
and thread the needle with new thread.
Knot
CUTTING NEEDLE THREAD
Frayed thread may make needle threading
difficult. Draw the thread passing under the
moving cutter and turn hand wheel towards
you to obtain clear-cut end.
13
TESTING STITCH OVERLOCK STITCHES
Fig. 1
After threading is completed, use spare fabri
that you plan to sew and test to sew in th
following order.
1. Gently pulling all the threads to the lef
lower the presser foot. Rotate the haft
wheel towards you a few times to see if th
lock stitches are properly formed.
2. Start the machine at low speed and feed i
test fabric under the presser foot by slight
pushing it forward. (This can be done wit
the presser foot down on most fabric
except bulky materials.) Guide the fabñ
gently as machine automatically feeds th
material.
3. Check thread tensions by test sewing a
spare fabric.
4. At fabric end, keep running machine at lo
speed, gently pulling the fabric towarc
the back, until about 5 to 7 cm of extra bc
stitches are produced without fabric.
Cut at the center with scissors, or threa
cutter on the presser bar.
14
NSIONS
ADJUSTING THREAD TE
higher number gives
Turning tension dial to a
. Turning tension dial
a tighter thread tension
es a looser thread
giv
ber
num
to a lower
number, the tighter
the
her
tension. The hig
the tension.
on a spare piece of
Test each thread tension
.
the fabric you plan to use
Left needle thread
tension control
4:3
Right needle thread
tension control
Upper looper thread
tension control
42
Lower looper thread
tension control
J)
guidance.
ings are for general
The above tension sett
g in many cases.
hin
stitc
r
you
improve
A little fine tuning will
going to use and find
e of fabric you are
Try test-sewing with a piec
s.
the best tension setting
15
Upper looper thread pulled to
under side.
Just right.
Lower looper thread pulled to
top side.
Under side
Under side
Lower
looper
thread
Right
needle
thread
Top side
Fig. 1
Top side
Fig. 2
Increase upper looper thread
decrease
and/or
tension
lower looper tension.
Left needle thread loose and
visible on under side of fabric.
Right needle thread loose and
visible on under side of fabric.
Under side
Under side
Right
needle
thread
Fig. 4
Increase left needle thread
decrease
and/or
tension
either or both looper threads.
16
Topside
Fig. 5
Increase right needle thread
tension.
Fig.
Top side
thread
looper
lower
e
Increas
decrease
and/or
tension
upper looper tension.
THREE-THREAD OVERLOCK WITH ONE NEEDLE
In addition to the four-thread overlocking
mainly featured on this machine, it is possible
to produce simple three-thread overlock
seams by threading only ONE needle.
Furthermore it is also possible to achieve two
different seam widths. By threading the LEFT
needle only a width of 5 mm will be produced
and by threading the RIGHT needle only a
width of 2.8 mm will be produced see
diagrams below).
17
ADJUSTING STITCH LENGTH
Turn the stitch length dial until
the required
length is at the guideline.
The higher the number, the long
er the stitch.
This dial can adjust the stitch
length from ito
5 mm.
RECOMMENDED STITCH LEN
GTh
SETTING
Regular
sewing
Narrowhem
1 to 5 mm
3 mm (standard setting)
1.Sto2mm
Rolled hem
1 to 2 mm
When sewing on ‘stretch fabri
cs’
may be necessary to adjust the or ‘knits’ j
to different settings to those stitch Iengtj
shown above
Because of the wide rang
e of fabric
available, it is not possible
to give specifi(
settings. It is advisable to
practice usinç
various settings before sewing
on the actua
fabric.
18
DIFFERENTIAL FEED
The differential feed has two independent
feed dogs, one front (A) and one rear (B).
Each feed dog has an individual feed
mechanism which enables the feeding of
material at a different ratio.
Differential feed dogs
POSITIVE DIFFERENTIAL FEED
WHEN SET FOR POSITIVE DIFFERENTIAL
FEED; the front feed dog (A> makes a longer
stroke than the rear feed dog (B). This has
the effect of accumulating material under the
presser foot to offset the wavering on the
fabric.
MINIMAL DIFFERENTIAL FEED
WHEN SET FOR MINIMAL DIFFERENTIAL
FEED; the front feed dog (A) makes a shorter
stroke than the rear feed dog (B). This has
the effect of stretching material under the
presser foot to offset the puckering on the
fabric.
Minimal differential feed
19
SETTING DIFFERENTIAL FEED
Differential feed
control lever
Set by simply turning the differential feet
control lever in the direction desired referrin
to the chart below.
The adjustment can be made between 0,
(Minimal effect) and 2 (Positive effect
These settings give the best ratio of feeding
For normal sewing, the lever should be st
at 1.
The lever can be reset even while sewing.
When the differential feed control lever is St
at its maximum of “2” and you attempt t
reset the stitch length dial at more than “4’
the lever returns to “1” automatically, th
avoids jamming which may be caused b
excessive material feeding.
EFFECTANDAPPLICATION
TYPEOFFEEDING
SETTING
Waver-free seams, Gathering
Positive differential
feed
1—2
No differential feed
Neutral feed
Pucker-free seams
Minimal differential
feed
FEEDRATIO
REAR: FRONT
]
20
1
0.7
—
—
1
H
ADJUSTING OVERLOCK STITC
WIDTH
changing the
Stitch width can be adjusted by
ered your
deliv
first
n
Whe
.
needle plate
standard
the
with
machine will be fitted
will be found
h
whic
,
plate
le
need
m
5.0m
overlocking
suitable for most general
requirements.
with a set of
Your machine is also supplied
for narrow
needle plate and presser foot
e will be
Thes
s.
hem
d
rolle
and
mm)
(about 2
box.
ssory
found in your acce
Needle plate for
narrow/rolled hems
Presser foot for
narrow/rolled hems
NEEDLE
CHANGING PRESSER FOOT AND
PLATE
supply by
1. Disconnect machine from power
en
removing plug from socketoutlet. Loos
in use.
screw (A) and remove presser foot
and
Place special presser foot into position
secure with screw (A).
removing
2. Take off needle plate in use, by guide pin
screw (C) and )ifting plate from
position
(B). Place special needle plate into
and secure with screw (C).
21
MACHINE ADJUSTMENT CHART FOR NARROW AND ROLLED HEMS
Narrow overlock hems
Needle plate and
presser foot
Stitch length
Needle
Thread for
needle
Upper looper
Lower looper
Rolled hems
Use needle plate and presser foot for narrow/rolled hems
(see page 21).
“1.5to2
1 to2
75or90(llorl4)
75(11)
Polyester, Nylon, Silk No. 50-100
Nylon No. 100
Polyester, Nylon, Silk No. 50-100
Bulk nylon (less stretchable)
Bulk nylon (less stretchable)
The best tensions for one fabric may not be correct for another. The required tensions depe
upon stiffness and thickness of fabric, thread size and type. If necessary, readjust referring to
above tension balance.
When overlocking fine, ‘scarf-like’ materials with narrow hem, set stitch length between 3 4 a
decrease thread tensions slightly.
-
22
BASIC TECHNIQUES
Turning outside corners without cutting
threads
1. When you reach the fabric edge, stop
stitching with the needle above the fabric.
on
2. Raise the presser foot and gently pull
the thread chain from the needle plate
and presser foot.
foot
3. Turn the fabric, lower the presser new
and commence stitching in the
direction. Fig. 1.
NOTE: When overlocking and trimming at
the same time, cut the fabric along
the new stitching line for about 3 cm,
before turning the fabric. Fig. 2.
Fig. 1
Cut!
Turning curved edges
For inside curves, guide fabric gently with
trimming line of the fabric under the right
front of the presser foot (or a little to the left!,
applying pressure at point A in the direction
of the arrow with your left hand, and at the
same time applying a little opposite pressure
at point B with your right hand. Fig. 3.
For outside curves place under the presser
foot in a similar manner but applying the
pressure in the opposite directions. Fig. 4.
Fig. 2
/
Fig. 3
Fig. 4
Removing stitches from sewn fabric
off
To remove stitches already sewn, snip
needle thread(s( at intervals and pull out
looper thread(sl.
23
CORDED OVERLOCK
F
1
Fig. 3
Corded overlock can be used to strength
shoulder, sleeve or side seams when joining
making up knitted garments. As a decorati
feature you can use knitting yarn of contrastin
colours to further enchance your garment. You
Superlock is equipped with a presser foot whlc
has been designed to feed your cord or yarn
the left of the safety stitch or to the right. Follo
instructions as follows:
1. Snap the detachable cord guide, No. 1194?
in your accessory set onto the thread gui
pole (Fig. 1).
2. Place a “filler” cord, such as a croche
cotton, gimp, wool, knitting yarn, or shirrinç
elastic at the rear of the machine spool pit
Pass the cord through the cord guides
and 12) and then through the left neei
thread guide (3). See Fig. 1.
3. Insert the cord through either the front
rear hole (according to the operation, se
diagrams Figures 2 and 3), in the press
foot and pass it under and to the rear of th
foot.
4. Place the material to be sewn as norma
Start at slow speed observing if cord
feeding correctly and increase speed a
needed.
FOR JOINING SHOULDERS OR SLEEVES
pass the cord through the front hole, ensurir
that it is fixed between the left and right need
threads as it is guided through the front hol
(Fig. 2).
FOR JOINING SIDE SEAMS, pass the cot
through the rear hole, ensuring it is positions
to the right needle thread. (Fig. 3).
FOR DECORATIVE EFFECTS, you may pa
contrasting colours either through the front
rear hole or if you desire, pass cord or var
through each hole.
DECORATIVE EFFECTS
In addition to normal overlocking which is fuI
described in this instruction book, your machin4
can also be used for decorative application
such as pin-tucking or making lengths c
decorative braid-see below.
Pin-tucking—using three threads
Fold fabric along a line to be pin-tucked an
overlock sew along the folded edge, makinç
sure not to cut into the folded edge of tI
fabric. Pull ends of threads to the underside art
press.
Making decorative braid using three threads
Overlock sew over a cord or braid, holding
carefully with both hands.
—
24
NARROW AND ROLLED HEMS
use on thin
Narrow and rolled hems are ideal for
crepe de
e,
crep
gette
geor
as
such
rials
mate
chine, silk etc.
locking the
A narrow hem is formed by over
shown in
as
h,
widt
in
mm
fabric edge about 2
Fig. 1.
the thread
A rolled hem is formed by adjusting
locked, folded
tensions so that the fabric is over
Fig. 2.
under and secured as shown in
very pleasing
In addition to the above hems, a
cularly when
parti
,
uced
prod
be
can
shell hem
as shown in
,
rials
mate
’
flike
sewing on fine ‘scar
Fig. 3.
s, they are
In view of the nature of these hem
materials.
unsuitable for use on ‘hard’ or ‘heavy’
ws:
To make these hems proceed as follo
right needle
1. Remove left needle and use
.
only
presser foot
2. Fit the special needle plate and
e 21).
(pag
box
ssory
acce
supplied in the
thread
of
type
and
size
te
opria
3. Use the appr
as suggested in the chart on page 22.
hems will
4. Thread tensions for these types of
cularly
differ from normal overlocking, parti
y the
with different types of fabric. Stud the
adjust
and
t
char
in
the
ions
ndat
mme
reco
tension controls accordingly.
ally be between
5. Stitch length should norm
1 2.
on settings
6. Always test the stitch and tensi
intend
on a spare piece of the fabric you
actual
using, before starting to sew the
ent.
garm
lem when
A narrow rolled hems is no prob
ashing you
fabrics are prewashed. With prew
nsional
will not have to worry about dime
edges
ide
out-s
h
roug
,
or
king
shrin
or
changes
rials.
as will occur on starched or stiff mate
Fig. 1
Narrow hem
a
*
4
—
Fig. 2
Rolled hem
-
...,
Shell hem
Fig. 3
25
DIFFERENTIAL FEED
APPLICATIONS
Pucker or waver-free seams
On an overlock machine with no differenti
al
feed feature, puckering and wave
ring are
always unavoidable on some materials
.
For example, woven fabri
cs tend to contract
when sewn. On the other
tend to stretch when sewn hand, knit fabrics
.
Differential feed is designed
to minimize
puckering and wavering.
It is also very effective for
gathering.
1. Puckering
Puckering
Puckering tends to occur on woven or
sheer fabrics.
To obtain pucker-free seams, set the
adjustment lever at less than 1.
2. Wavering
Wavering tends to occur on knitted or
stretchable fabrics.
To obtain waver-free seams, set the
control lever at more than 1.
Wavering
3. Gathering
Differential feed makes gathering easier.
Use it on waistlines, sleeve heads, sleeve
bottoms and ruffles, etc.
Set the control lever between 1.5 and 2 to
obtain the best gathering effect for your
use.
IMPORTANT
The exact adjustment depends on the
thickness and elasticity of fabric. Even the
stitch length can influence the setting. The
longer the stitches, the more the fabric is
contracted.
Always do a test run with a piece of actual
fabric you use and find the best settings.
26
3. CARING FOR YOUR MACHINE
REPLACING MOVING CUTTER
Replace a moving cutter if it becomes blunt
as follows. A spare cutter will be found in
your accessories.
NOTE: You should not need to replace fixed
cutter, which is made of a special
hard alloy material.
FIRST REMOVE THE POWER PLUG FROM
THE SUPPLY SOCKET-OUTLET.
1. Open side cover and loosen screw from
pr tection cover. Take out protection
cover.
2. Loosen screw and take out moving cutter.
3. Set replacement cutter in position, and
secure it with screw and nut.
4. Replace protection cover.
Moving cutter
Scew
CHANGING LIGHT BULB
The sewing light is located
machine arm, as shown.
under the
THE
DISCONNECT MACHINE FROM
PLUG
POWER SUPPLY BY REMOVING
FROM SOCKET-OUTLET.
THAN
DO NOT REPLACE BULB OF MORE
15 WATTS MAX.
To change bulb, pull down light cover,
remove old bulb by unscrewing. Replace with
new bulb. Push up light cover rigidly.
Light cover
27
CLEANING AND OILING
To keep the machine running smoothly, keet
it clean and lubricated at all times.
FIRST DISCONNECT MACHINE FRO
POWER SUPPLY BY REMOVING PLU(
FROM SOCKET.OUTLET.
1. Open both front and side covers. Usin
the brush provided, remove dust and Iir
that have accumulated.
2. Lay the machine on its back and remo
the lint tray by undoing the singlE
securing screw.
Using the brush provided, remove an
dust and lint that may have accumulatec
in the tray and bottom of the machine.
Replace the tray and secure by re-tighten
ing the screw.
3. Apply a few drops of oil to the poirn
indicated by arrows.
ALWAYS USE A GOOD QUALIT
SEWING MACHINE OIL.
4. Wipe off any stains with a soft cloth.
28
PROBLEMS
4. CHECKING PERFORMANCE
PROBLEM]
Irregular
Stitches
Breaking
Needle
Puckering
.
Wavering
PROBABLE CAUSE
Incorrect Thread Tension(s).
Incorrect size Needle.
Pulling Fabric.
Incorrect size Needle.
Incorrect setting of Needle.
Loose Presser Foot.
Incorrect Thread Tension(s).
Bent or blunt Needle.
Differential feed is set
incorrectly.
Differential feed is set
incorrectly,
Incorrect size Needle.
Bent or blunt Needle.
Incorrect setting of Needle.
Breaking
Threads
Reset Thread Tension(s).
for Thread
Choose correct size Needle
and Fabric.
Re-thread Machine.
Improper Threading.
Pulling Fabric.
Loose Presser Foot.
Improper Threading.
Skipping
Stitches
CORRECTION
Improper Threading.
Bent needle.
t.
Thread Tension(s) too tigh
Incorrect setting of Needle.
Thread Spool tangled.
d.
Thread Guide Pole not extende
it gently.
Do not pull Fabric; guide
t.
Foo
Reset Presser
gently.
Do not pull Fabric; guide it for Thread
Choose correct size Needle
and Fabric.
Reset Needle.
Reset Presser Foot.
Reset Thread tension(s).
Insert new Needle.
Set it at less than 1.
Set it at 1 or at more than 1
for knitted fabrics.
Re-thread Machine.
for Thread
Choose correct size Needle
and Fabric.
Insert new Needle.
Reset Needle.
Re-thread Machine.
Insert new Needle.
Reset Thread Tension(s).
Reset Needle.
Reset Spool properly.
Fully extend Guide Pole.
CHINE
SPECIFICATION OF MA
ITEM
Number of threads
overedge stitch width
Needle
Stitch length
Stitching speed
Dimensions
Weight
SPECIFICATION
4 or 3 threads
Iright needle)
5mm (left needle) and 2.8mm
HAx1SP,HAx1 1130/705H)
1
—
5 mm
Up to 1500 stitches per minute
mm(H)
x
325 mm)W) x 260 mm(D) 290
9.5 Kg
29
5. OPTIONAL ACCESSORIES AVAILABLE FOR YOUR SUPER
LOCK
BLIND HEM FOOT
BLIND HEMS USING SPECIAL FOOT
Blind hem feet are obtainable as an optional
extra and are available in two sizes. Part
No. 6803 (0.5) for fine/medium fabrics and
Part No. 6804 (1.0) for medium/heavy
fabrics.
Fit the appropriate foot.
Set the stitch length 4 5.
-
Final hem
length
Fig. 1
Screw
Final hem
length
Guide
Now proceed as follows:
1. Turn up the hem to the required depth
and press. Fold the hem back against the
right’ side of the garment, creating a
‘soft’ fold on the ‘wrong’ side of the
fabric see Fig. 1.
2. Place fabric under the presser foot with
the ‘wrong’ side uppermost. Feed the
folded edge through the guide in the front
of the foot and lower the presser foot
lever. Try a stitch (or several stitches) on a
spare piece of the actual fabric, and
adjust the guide so that the needle just
catches the fold. Adjust the guide by
means of the small screw on the top of
the foot see Fig. 2.
3. When correctly set, sew the hem. The
outside edge will be cut away by the
machine see also Fig. 2. After comple
tion, open out and press again. The
stitches should be almost invisible on the
‘right’ of the fabric see Fig. 3.
-
Fig. 2
-
Fig. 3
30
PIPING FOOT
Instructions for special piping foot:
(Part No. 11658)
Prepare a piece of ready-made piping (corded
bias fold tape).
Place folded piping beween seam edges with
fold extending beyond seam line towards
garment. Pin or baste, and stitch the seam.
Braid or ribbon may also be used, either flat
or folded braid can be used in straight seams.
Use for decorating edges of collars, cuffs,
pockets, etc.
31
CHANGING PRESSER FOOT
bar
1. Lift up presser foot, and raise needle
to the top position by turning hand wheel
towards you by hand.
ck
2. Loosen set screw by turning it anticlo
e
remov
and
IL),
driver
wise with screw
the existing foot as illustrated.
3. Set new foot in position and tighten set
screw with the screwdriver by turning i
clockwise.
CAUTION: In the case a blind hem foot is set
on the presser bar, the following
care must be exercised when you
are going to open machine side
cover.
(1) Lower needle bar to the bottort
position, by turning hand whee’
towards you by hand.
(2) Raise presser foot. Lift up ant
hold front edge of the foot with
finger, and open the machine side
cover.
DEALER
THESE ACCESSORIES ARE AVAILABLE FROM YOUR
OR
White Sewing Machine Co.,
11750 Berea Road
Cleveland OH
U.S.A. 44111
1470 Birchmount Road
Scarborough, Ontario
Canada MIP 2G1
32
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