coverlock 4772
PFAFF
coverlock
4772
i:i L.
I:.t
4772
cover10
I
Instruction manual
For easier understanding of this instruction book
please fold out this and the last page when reading.
Safety rules
For the United Kingdom only
The leads must definitely not be connected to the safety lead
terminal I nor to a plug with three pins.
The wires in the mains lead are colored according to the follo
wing code:
Blue: Neutral
Brown: Live
As the colors of the wires in the mains lead of this appliance
may not correspond with the color coding of the terminals in
your plug, proceed as follows:
The wire which is colored blue must be connected to the termi
nal which is marked with the letter N or colored black.
The wire which is colored brown must be connected to the ter
minal which is marked with the letter L or colored red.
Cut-off mains plugs are definitely not to be used, but disposed
of immediately. Defective mains leads must be replaced com
pletely.
Only 3 A spare fuses must be used as approved by ASTA accor
ding to BS 1362 and the fuse cover must be marked 3 A or with
the corresponding color code.
The plug must never be used without fuse cover. Spare fuse
covers are available from electrical suppliers or the PFAFF agen
cies.
Please also observe the general safety notes on page 2.
Important safety instructions
For Australia only
• If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or a similarly qualified per
son in order to avoid a hazard.
• The appliance is not intended for use by young children or
infirm persons without supervision,
• Young children should be supervised to ensure that they do
not play with the appliance.
• Switch off or unplug the machine when leaving it unatten
ded.
• Before servicing the appliance or replacing lamps, unplug
the machine.
will find the Contents on pages4and
Parts of the coverlock 4772
(1) Upper thread tension
(2) Upper thread tension
(3) Carrying handle
(4) Thread tension/upper looper thre
ad
(5) Thread tension/lower looper thr
ead
(6) Thread tension/Two-thread cha
institch looper
(7) Converter
(8) Looper cover
(9) Blade guard
(10) Standard presser foot
(11) Standard needle plate
(12) Detachable work support
(13) Accessory box
(14) Needle holder
(15) Sewing light cover
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
Upper overedge looper
Lower overedge looper
Two-thread chainstitch looper
Retaining screw for upper overedge
looper
Adjusting knob for seam width
Bed slide for stitch width latch
Fixed lower blade
Movable upper blade
Important safety instructions
For the United States only
This sewing machine is designed and manufactured for HOUS
EHOLD use only. When you use an electric appliance, the follo
wing basic safety precautions should always be adhered to:
Read all instructions before using this sewing machine.
DANGER
To reduce the risk of electric shock:
1, The sewing machine should never be left unattended when plugged in, Always unplug
this appliance from the electric outlet immediately after using and before cleaning.
2. Always unplug before relamping. Replace bulb with same type rated 15 Watts.
3. Do not reach for a sewing machine that has fallen into water. Unplug immediately.
4. Do not place or store a sewing machine where it can fall or be pulled into a tub or sink.
Do not place in or drop into water or other liquid.
NARNING
To reduce the risk of burns, fire, electric shock, or injury to persons:
1. Do not allow to be used as a toy. Great care is necessary when this sewing machine is
used by or near children.
2. Only use this sewing machine for its intended purpose as described in this manual.
Only use attachments recommended by the manufacturer as contained in this manual.
3. Never operate this sewing machine if it has a damaged cord or plug, if it is not working
properly, if it has been dropped or damaged, or dropped into water. Return the applian
ce to the nearest authorized dealer or service center for examination, repair, electrical or
mechanical adjustment.
4. Never operate the sewing machine with any air openings blocked. Keep ventilation ope
nings of the sewing machine and foot control free from the accumulation of lint, dust
and loose cloth.
5. Never drop or insert anything into any opening.
6. Do not use out of doors.
7. Do not operate where aerosol (spray) products are being used or where oxygen is being
administered.
8. To disconnect, turn all controls to off (“0”) position, then remove plug from socket.
9. Never operate on a soft surface such as a bed or couch where the air openings may be
blocked.
10. Do not unplug by pulling on cord. To unplug, hold the plug, not the cord.
11. Keep fingers away from all moving parts. Special care is required around the sewing
machine needle.
12. Always use the proper needle plate. The wrong plate can cause the needle to break.
13. Do not use bent or blunt needles. Only use needles recommended by the manufacturer.
14. Do not pull or push fabric while stitching. It may deflect the needle, causing it to break.
15. Switch the sewing machine off (“0”) when making any adjustments in the needle area,
such as threading needle, changing needle, threading bobbin, or changing presser foot,
etc.
16. Always unplug sewing machine from the electric outlet when removing covers, lubrica
ting, or when making any other user servicing adjustments mentioned in the instruction
manual.
17. Hold plug when rewinding into cord reel. Do not allow plug to whip when rewinding.
Please also observe the general safety notes on Page 2.
KEEP THESE INSTRUCTIONS IN A SAFE PLACE
Notes on safety
Notes on safety for domestic sewing
machines according to EN 60 335-2-28 or
IEC 335-2-28.
1. The user must exercise adequate cau
tion with regard to the up and down mo
vement of the needle and keep the se
wing area under constant observation
while working.
2. When leaving the machine, during
maintenance work or when changing
mechanical parts or accessories, always
disconnect the machine from the elec
tric power by pulling out the plug.
3. The maximum permissible wattage for
the sewing lamp is 15 Watts.
4. The tension of the drive belt should only
be adjusted by a PFAFF mechanic.
5. The machine should be put into opera
tion as indicated on the specification
plate.
6. Do not place any objects in openings on
the machine.
7. Do not use the sewing machine if:
there is visible damage,
its function is defective,
it is wet, e.g. with condensation which
can occur when a cold machine is
brought into a warm room.
8. Do not pull the mains plug out of the so
cket by its cord.
9. If this appliance is used for another pur
pose than that intended or if it is wron
gly operated, we cannot accept any lia
bility for any damage caused.
10. To avoid the risk of electric shock, do not
open the machine. There are no parts in
side the machine which the user can re
pair. This the exclusive responsibility of
our qualified service staff.
11. Be sure to use only original PFAFF
parts.
12. The machine is designated for an electri
cal supply with a nominal voltage of +/10 % and a rated frequency of +1- 4%.
-
-
-
2
13. When used properly, the temperature of
the outer components of a non-electro
nically controlled foot control can reach
up to 85° C. Constant use at a low speed
is therefore not permitted in order to
avoid damage.
Environment
The recommended environment is:
Ambient temperature 10°C to 40°C
Humidity 20% to 80%
Storage temperature -25°C to +60°C
The machine is suppressed and immune to
interference according to international regu
lations; however it should not be operated
near electronic devices such as radios, TVs,
PCs, broadcasting transmitters etc.
This sewing machine is a high-quality elec
tro-mechanical appliance; it is a machine for
supervised use in the home. It should be
operated in such a way that it is not ex
posed to: dust, severe dampness, direct
sunlight, static electricity, heat-producing
objects, corrosive chemicals or liquids.
To permit adequate ventilation the machine
must be kept unblocked and used on a firm
and even surface.
Treatment
Always make sure not to damage your ma
chine by knocking or dropping it.
Cleaning
Housing and display:
To clean the housing, use a dry, clean and
soft cloth that is free of fluff. To remove any
stubborn dirt, use a soft cloth with alcohol
or paraffin.
Please Note!
Never use insecticides or chemical products
such as petrol (gas) or thin chemicals to cle
an the housing.
Simple, up-to-date sewing
Congratulations! You have bought a high-quality
product that provides unique advantages. Your
new coverlock 4772 can take any material in its
stride and will sew for you through thick and thin.
Your PFAFF coverlock features the very latest in
design and technology, and it is just as easy to
use as this instruction manual is to follow.
If you now take a bit of time to study the instruc
tion manual nothing can go amiss.
It is certainly time well spent, since it is the only
way to find out just what your machine can do
and put it to full use.
If you have any further questions, just ask your
PFAFF dealer. They are happy to be of service
with any help or advice.
So now let’s get started! We wish you many
enjoyable hours creating your very own fashion
ideas.
3
Contents
Page
Accessories
.
6
Accessories, special
59
Accessory box
6
Adjusting the machine to cover stitch and 2-thread chainstitch
30
Bed slide for stitch width latch, setting
25
Blade guard
32
Changing a spool on a threaded machine
20
-
-
69
33
Chainstitch looper (violet), threading
16, 17
Converter, attaching
24
Cover stitch, important notes on sewing
34, 35
Cover stitch and 2-thread chainstitch, setting the machine
30
Differential feed
28, 29
Edge guide
35
Foot control, connecting
7
Free arm
27
-
33
Light bulb (sewing lamp), changing
58
Looper cover
8
Lower blade, changing
57
Lower overedge looper (yellow), threading
14, 15
Lubricating the machine
56
Machine cover
6
Maintenance
56
Master switch
7
Needle changing aid
11
-
58
Needle holder
11
Needle plate, changing
30
Needle position
10, 11
Needle(s), threading
18, 19
Needle, changing
11
Power table
32, 34
Presser foot
22
Presser foot lifter
21
Presserfoot pressure
21
Presser foot, changing
22
Program overview
36
Rubber feet, cleaning
56
-
41
Safety instructions
1,2,7
Seam width, setting
26
4
Contents
Page
Serging problems and their solutions
72, 73
Specifications
74
Spool centering piece
9
Spool holder
9
Spool net
9
Stitch length, setting
Stitch width latch, setting
27
Telescopic thread guide
9
25
Thread chain trimmer
22
Thread changing on a threaded machine
Thread chart
20
70
Thread guides, threading
12
Thread tensions, setting
42
Thread unreeling disc
10
Threading, important note
Trimming waste container
20
8
Trouble shooting
72, 73
Two-thread chainstitch looper (violet), threading
Upper blade, disengaging/engaging
23
Upper overedge looper (pink), threading
13
-
55
16, 17
5
Accessory box
Pull the accessory box (13) to the left
and re
move the accessories.
Accessories
The following accessories are included
with
the machine:
1 Machine oil
2 Power table
3 Cover-stitch needle plate C
4 Cover-stitch presser foot C
5 Thread unreeling discs (5 eachl
6 Lower blade
7 Edge guide
8 Needle changing aid
9 Cleaning brush
10 Pair of tweezers
11 Screwdriver (large)
12 Screwdriver (small)
13 Edge guide with retaining screw
14 Overlock needle system EL 705
cat. No. 2002
15 Spool nets (5 each)
Machine Cover
The machine cover protects the mach
ine
against dust and dirt. After each use
push in
telescopic thread guide (26). Thread
spool
stand (28) must be pushed against the
ma
chine, with or without thread spoo
ls, as far
as it will go. The machine cover can
now be
placed in position.
6
Connecting the foot control
Plug the foot control plug into the connec
ting bush (31) of the machine and the plug
socket. The sewing speed is regulated by
activating the foot control. You may also re
gulate the sewing speed by adjusting the
slide on the front of the foot control.
Setting
Setting
41
=
reduced final speed
=
full final speed
Master switch
When you turn on the master switch (32)
the sewing lamp is illuminated.
The machine is now operational.
Notes on safety
This appliance has a polarized plug (one blade wider than the other),
To reduce risk of electric shock, this plug is intended to fit in a polarized outlet
only
one way. If the plug does not fit fully in the outlet, reverse the plug. If it still
does not
fit, contact a qualified electrician to install the proper outlet. Do not modify
the plug
in anyway.
USA and Canada: For control sewing machine, foot controller type AE 033 has
to be
used.
Australia: For control sewing machine, foot controller type AE 034 has to
be used.
7
Trimming waste container
Insert the upper latches of the trimming
waste container (38) into the upper slot of
the hook cover 18).
Apply pressure to the lower part of the con
tainer until the lower latches click into place
in the lower slots of the looper cover.
To remove the trimming waste container, re
peat this procedure in the reverse order.
Looper cover
Note
Push the looper cover <8) fully to the right
and then swivel it down. Each threading
path and the mounting procedure for the
converter are portrayed in color on the insi
de of the machine. The threading method
for the lower overedge looper 117) and the
most common stitch types are shown sym
bolically on the inside of the looper cover.
The electricity supply of the machine is cut
off as soon as the looper cover is opened
for safety reasons, i.e. sewing with the ma
chine is no longer possible.
S
Spool holder
Before mounting spoois you must pull the
spool holder (28) back fully.
Telescopic thread guide
Pull the telescopic thread guide (26) up
wards.
To ensure optimum thread feed, turn the tel
escopic parts slowly until you hear the lock
ing balls then click into place.
Spool net
With synthetic threads which unwind too
quickly from the spool, pull the spool net accessory over the spool from below. Now
you can mount the spool on the spool hol
der.
Spool centering piece
Use the spool centering piece (30) when se
wing with large spools (5000 10,000 ml, as
shown in the illustration above.
9é
Thread unreeling disc
The thread unreeling disc
(in the accessory
box) is used for small spools. Pla
ce the un
reeling disc onto the spool.
Needle position
This machine has four differen
t needle posi
tions and can sew with a max
imum of two
needles at any one time. Retaini
ng screw A
belongs to the right overed
ge needle, retai
ning screw B to the left ove
redge needle.
10
Place the two onto the spool
centering piece
(30) of the thread spool pin
(29).
Retaining screw C belongs
to the 2-thread
chainstitch needle and retainin
g screw 0 be
longs to the cover-stitch needle.
cLD
right overlock
needle threaded
C-I—c
A
left overlock
needle threaded
2-thread chainstich
needle threaded
os]
cover-stitch
needle threaded
!I
SI
Ioöl
left and right overlock needles threade
d
In this instruction manual the vario
us need
le positions are shown in a sche
matic dra
wing of the needle holder. See
the examples
above.
Note: If both the left and right over
edge
needles have been inserted, the
left needle
will be somewhat higher than
the right
needle.
Changing the needle
Switch off the electrical power.
To remove: Lower the presser foot
and
move the needle(s), by turning
the hand
wheel, into the highest position.
Push the
needle changing aid accessory from
below
upward fully over the needle. Loos
en the
fastening screw (without removing
it) of the
needle using the small screwdrive
r and pull
the needle down to remove.
2-thread chainstitch and cover-stitch needle
s threaded
Note: If both the 2-thread chainstitc
h needle
and the cover-stitch needle are threa
ded,
the left needle will be somewhat
higher
than the right needle.
To insert: Insert the needle into
the hole of
the needle changing aid, so that
the flat
needle shank (K) faces the flat side
(LI of the
aid accessory. Now insert the need
le fully
into the holder and tighten the faste
ning
screw. Remove the needle changing
aid.
Overlock needle types EL x 705,
cat. no.
2002 are required for this machine.
11
Threading
A color-coded threading diagram for quick
reference is to be found behind the looper
cover, i.e. inside the machine.
Thread the individual threads as shown
following steps 1 to 5.
-
-
The color markings are applicable as fol
lows:
1. 2-thread chainstitch looper = violet
2. Lower overedge looper = yellow
3. Upper overedge looper = pink
4. Right overlock needle = green
5, 2-thread chainstitch needle = blue
PFArF
Threading/Thread guides
Place the spools on the spool stands (29).
Notes on the spool net, thread unreeling
disc and spool centering piece are to be
found on pages 9 and 10. Insert the threads
through the thread guides (24) from back to
front according to the color coding.
12
Lift carrying handle (3). Insert the threads
beneath the handle and through rear thread
guides (371 by pulling down with both
hands until the thread slips under the thread
guide. Pull the thread between the tension
discs and press it down until it is lodged
between the tension discs. Return the carry
ing handle to its closed position.
Threading
Upper overedge looper (pink)
Thread by following the steps 1 to 8.
Note: To facilitate threading, use the twee
zers included in the accessory box.
Insert the thread along the path marked in
pink through guides 4 to 7.
Insert the thread from the front through the
eye 8 of the upper overedge looper. Pull ab
out four inches (10 cml of thread through
the looper and lay it to the left underneath
the presser foot.
13
Threading
Lower overedge looper (yellow)
1
Turn the hanc(wheel in the direction of the
arrow until the lower overedge looper (17)
is positioned at the extreme right.
Insert the thread by following steps 1 to 11.
Note: To facilitate threading, use the twee
zers included in the accessory box.
14
Insert the thread along the path marked in
yellow through thread guides 5 to 8.
B---A
Lay the thread from back to front over the
right-hand side of the looper. Carefully pull
the thread to the left and slightly down until
it slips into notch B (= threading point 10) of
the looper.
Place the thread, using the tip of the twee
zers, into thread guide (9).
C
Insert the thread from the front through the
eye of lower overedge looper C (= threading
point 11). The thread must run along the
groove in the looper.
Pull about four inches (10cm) of thread
through the looper and lay it to the left un
derneath the presser foot.
15
Threading
2-thread chainstitch looper (violet)
Turn the handwheel in the direction of the
arrow until the 2-thread chainstitch looper
(18) is positioned at the extreme right.
Insert the thread by following steps 1 to 11.
Note: To facilitate threading, use the twee
zers included in the accessory box.
Insert the thread along the path marked in
violet through thread guides 4 to 10.
Insert the thread from the front through the
eye 11 of 2-thread chainstitch looper.
Pull about four inches (10cm) of thread
through the looper and lay it to the left un
derneath the presser foot.
16
Exception:
Threading the 2-thread cha
institch looper
for cover stitch (violet and
pink)
Turn the handwheel in the
direction of the
arrow until the 2-thread
chainstitch looper
(18) is positioned at the extr
eme right.
Insert the thread by followi
ng steps 1 to 12.
Note: To facilitate thread
ing, use the twee
zers included in the acc
essory box.
0
Insert the thread along the
path marked in
pink through thread gui
des 4 to 12.
Pull about four inches
(10 cm) of thread
through the looper and
lay it to the left un
derneath the presser foo
t.
-
The thread guide 8 may
only be used, when
sewing the cover stitch.
17
Threading
Right and left overlock needle,
Needle A and B (green and blue)
Insert the thread by following steps 1 to 10.
Note: To facilitate threading, use the twee
zers included in the accessory box.
Note: The thread must run below the thread
guide 7 and above the thread guides.
18
Pull about four inches (10 cm) of thread
through the eye of the needle and lay it to
the left underneath the presser foot.
Threading
2-thread chainstitch needle and cover-stitch
needle
Needles C and D (blue and green)
Insert the thread following steps 1 to 8.
Note: To facilitate threading, use the twee
zers included in the accessory box.
Note: The thread must run above thread
guides 5 and 6.
To sew the cover stitch, thread as shown in
illustration A, into thread guide 8. To sew
the 2-thread chainstitch, the 5-thread safetystitch seam and the 4-thread safety stitch
seam, thread into thread guides 7 and 8, as
shown in illustration B. Pull about four in
ches (10 cml of thread through the eye of
the needle and lay it to the left underneath
the presser foot.
,
19
Important note on threading
last
The needles must always be threaded
r
unde
run
not
do
ds
threa
le
so that the need
1, but
the looper thread as seen in drawing
cted
instead over the looper thread as depi
be
not
ence
sequ
this
ld
Shou
in drawing 2.
stit
followed, thread breakage or missed
ches will occur.
t pull
If the looper threads break, you mus
le, rethre
the needle threads out of the need
rethread the
ad the looper threads and then
needle threads.
ine
Changing a spool on a threaded mach
and
l
spoo
the
to
Cut the threads off close
threads
mount new spools. lie together the
new
the
with
ine
mach
the
in
still
,that are
the
threads, and pull the threads out of
on the
needles. Raise the presser foot. Pull
t6
abou
s
are
knot
the
until
ds
threa
needle
e in
guid
d
threa
last
the
past
inches (15 cm)
and
front of the needles. Cut the knots off
pull the threads through the respective
be pul
needle eyes. The looper threads can
and
led continuously past the looper eye
presser
the
th
rnea
unde
left
the
to
d
place
foot.
20
Presser foot lifter
The presser foot can be raised and lowered
with presser foot lifter (36). The maximum
vertical clearance of 1/4 inch (6.0 mm) for
the presser foot for particularly thick fabrics
can be achieved by also depressing the
presser foot lifter towards the back.
Once a thread chain has been created, the
presser foot lifter no longer needs to be
raised if you continue working with the
same thread and presser foot. It is sufficient
to gently lift the presser foot using your
thumb. Now slide the fabric under the
raised part of the presser foot. The fabric is
automatically taken up and fed into the ma
chine when you activate the foot control.
Presser foot pressure
The pre-set presser foot pressure on the
machine is suitable for medium-heavy ma
terials.
The presser foot pressure does not need to
be changed for most materials. If you are
working with lighter or heavy materials then
you may however need to reset the pressu
re.
In this event, insert the small screwdriver
from the accessory box into regulator screw
for the presser foot pressure (25). The pres
sure is adjusted by turning the screw to the
left or right. For heavyweight fabrics: in
crease pressure by turning the regulator
screw to the right.
Note: Turn the regulator screw to the right
until it strikes against the top lid. Then turn
the screw back to the left, rotating it 6 times.
Now the standard presser foot pressure is
set.
21
\
Changing the presser foot
Switch off the electrical power
To remove: Raise the needle(s) to the hig
hest position and lift the presser foot. Press
the white lever at the rear of the presser
foot holder. The sewing foot will be released
automatically from the holder and can be
removed to the left. To do this, lift the spring
slightly.
To insert: Lift the spring slightly and insert
the sewing foot under the holder so that
when the presser foot lever is lowered, the
pin of the foot locks into the presser foot
holder.
Check: Please lift the presser foot lever to
ensure that the presser toot is properly lock
ed into place.
Presser foot
Use cover-stitch presser foot C from the ac
cessory box when sewing cover stitch.
Use the standard presser foot 1O) for all
further programs (see page 36- 41).
On the presser feet, there are markings A,
the extension of which is where the need
le(s) is to be positioned. These markings can
used as an aid when sewing.
Thread chain trimmer
After finishing the seam, sew an approx. 6
to 8 inch (15 —20 cm) long thread chain.
Pull the thread chain from the back to the
front over the thread chain trimmer (27).
This will cut off the thread chain.
22
S
ad
Disengaging the upper
blade
Switch off the electrical
power
Raise upper blade (23
) to its uppermost po
sition by rotating the han
dwheel. Detach the
trimming waste contain
er and open the loo
per cover. Now slide the
holder of the mo
vable upper blade fully
towards the right.
Turn the head of the upp
er blade away from
you until the upper blade
locks into a hori
zontal position.
an
Engaging the upper bla
de
Slide the holder of the mo
vable upper blade
towards the right and swi
ng the blade back
until it locks into its wor
king position. Close
the looper cover and re-a
ttach the trimming
waste container.
23
Fitting the converter
Switch off the electrical power
The converter must be fitted for all 2-thread
seams, for the 2-needle, 3-thread overedge
closing seam and for the 4-thread safetystitch seam. Detach the trimming waste
container and open the looper cover. Con
verter (7) is located in the front of the ma
chine housing. Pull it out.
Rotate the handwheel in the direction of the
arrow until the upper overedge looper (16)
is positioned to the right of the movable up
per blade.
A
Insert hub A of the converter into the aper
ture of the upper overedge looper.
24
Rotate the converter towards the left and
press the upper part slightly to the rear so
that the tip of the converter locks into the
eye of the looper.
The converter can be removed in reverse or
der.
Setting the bed slide for the stitch width
latch
For standard overlock seams:
Set the bed slide for stitch width latch (21)
to position S.
For rolled hems and the cover stitch
Set the bed slide for stitch width latch (21)
to position R.
Stitch width latch A will be pushed forward.
All standard overlock seams can be sewn
with this setting.
Stitch width latch A will be pushed back
ward. All rolled hems and the cover stitch
can be sewn with this setting.
25
Setting seam width
Remove trimming waste container. The
seam width can be continuously adjusted as
desired from 1/8 to 3/16 inch (3.0 mm to 4.5
mm> by turning the seam width adjustment
knob (20). The 2-thread chainstitch is sewn
with an interval from 1/8 to 3/16 inch (3.0
mm to 4.5 mm>.
The settings are marked on the needle plate.
R is the seam width adjustment for rolled
seams.
Note: The seam width can be more easily
adjusted if the looper cover is open.
—
3,0mm •
(0.12’)
4,5 mm
(0,18)
Note: The seam width adjustments between 1/8 to 3/16 inch (3.0 mm to 4.5 mm) apply to
the right needle only. For the left needle, the set value is increased by 2.2 mm, i.e. the seam
width can be continuously adjusted from a scant quarter inch to a generous 1/4 inch (5.2
mm to 6.7 mm>.
26
it
Setting the stitch length
The stitch length can be set as desired from
F (4 1 mm> to 4 mm by turning stitch length
adjustment knob (35).
For most sewing work, the stitch length ad
justment knob should be set at 3 mm. When
working with close-knit fabrics, set the ad
justment knob to 4 mm.
Sewing with the free arm
Detach the work support
Pull the detachable work support (12) for
ward slightly, and remove this to the left.
Note: If you detach the trimming waste con
tainer beforehand, it is easier to remove the
detachable work support.
The free arm is particularly useful for se
wing tubular items such as trouser legs and
sleeves. Insert the article over the free arm.
Reattaching the work support
Position the detachable work support so
that it is level with the machine cover, then
slide it to the right until it locks into posi
tion.
27
Differential feed
The differential feed consists of two feed
dogs (A + B), arranged one behind the other,
which move the fabric. Adjustment lever
(34) regulates the movement of the front
feed dog (A), and thus the amount of fabric
to be fed through. It can be adjusted within
the range 0.5 and 2.0.
The standard setting is 1.0, by which the
front feed dog (A) moves synchronously
with the rear feed dog (B), i.e. the front and
rear feed dogs both move the same amount
of fabric.
Note: The effectiveness of the differential
feed also depends on the stitch length selec
ted and the type of fabric used.
/
If differential feed adjustment lever (34) is
set to 0.5, the front feed dog moves half as
fast as the rear feed dog, i.e. the front feed
dog feeds through only half as much fabric
as the rear feed dog.
As a result, the fabric is stretched.
28
This prevents the seam from becoming ga
thered when sewing very delicate fabrics
such as silk and taffeta. The result is a
smooth seam (A).
Fashionable touches can also be introduced
in this way, such as the wave effect when
using rib knit (B).
ther
Inc
(tin
tnd
iu nt
al
alec-
Set differential feed adjustment lever
(34) to
2.0 so that the front feed dog moves twic
e
as fast as the rear feed dog, i.e. the
front
feed dog feeds through twice as muc
h fa
bric as the rear feed dog.
As a result, the fabric is gathered.
This prevents the seam from becoming
stretched when sewing knitted fabri
cs such
as Jersey and rib stitch goods. The
result is
a smooth seam (C).
Fashionable touches can also be intro
duced
in this way, such as the gather effec
t when
using very delicate fabrics (D).
The following table contains informati
on on the differential teed settings. How
ever, you
should always test your setting first
on a piece of scrap fabric.
Type of fabric I effect
Very_light_fabrics:_silk,_satin,_poplin
,_taffeta,_linings.
Normal fabrics: light and medium-heav
y cottons, fine cords,
thermal-wear.
Differential-feed setting
gather
normal
stretch
<2.0>
<1.0?<0.5>
Light kniwear: jerseys, polo fabrics,
fine knitwear and gathered materialscut-pile pullovers, tricot,
.
Heavy knitwear: sweatshirt fleece, heav
y gathered materials,
heavy knitwear.
Stretch wavelike effect: medium
and light knitwear ruffled
sleeve and collar edges, skirt hems,
dense stitch lengths.
-
ted
Gathering: ruffling light materials and
for curves, arches on blouses, shirts, lace, seam allowances
flaps, stretching or gentle ruffling of skirts, round pockets,
arched sleeves (shoulders),
sleeve widths for cuffs or gathered
fabrics.
•
29
Adjusting the machine to the cover stitch
and two-thread chainstitch.
Switch off eIectrica power
For cover stitch:
Turn the handwheel in the direction of the
arrow until the needle(s) is in the highest
position. Remove the standard presser foot
(see page 22). Detach the trimming waste
container and open the looper cover. Disen
gage the upper blade. Set the bed slide for
the stitch width latch to R (see page 25).
For cover stitch:
Remove the standard needle plate by un
screwing screw A using the large screwdri
ver from the accessory box. Press on area B
of the needle plate. This raises the needle
plate slightly. Then remove it to the left.
For cover stitch:
Raise the finger protection slightly and in
sert cover stitch needle plate (marked with
“C”) from the accessory box.
Re-tighten the screw. Insert cover-stitch
needle D and two-thread chainstitch needle
C (see page 11). Attach cover-stitch presser
foot (marked with “C”) from the accessory
box (see page 22).
30
I
ot
For two-thread chainstitch:
Turn the handwheel in the direction of the
arrow until the needle(s) are in the highest
position. Insert two-thread chainstitch need
le C(see page 11).
Remove the trimming waste container and
open the looper cover (the bed slide for the
stitch width latch is set at S). Disengage the
upper blade.
For cover stitch and two-thread chainstitch:
Disengage upper overedge looper (16).
Move upper overedge looper (16) into its lo
west position by turning the handwheel in
the direction of the arrow.
For cover stitch and two-thread chainstitch:
Turn the retaining screw of the upper ove
redge looper (19) anti-clockwise, until it co
mes out of the looper’s drive lever. Ensure
that the upper blade and the upper overed
ge looper are disengaged by turning the
handwheel in the direction of the arrow.
Thread the two-thread chainstitch looper
(see pages 16 and 17) and then the
needle(s) (see page 19).
31
For cover stitch and two-thread chainstitch:
Remove blade guard (9) upward. Push the
power table, from the accessory box, from
above into the slot of the looper cover.
Screw the edge guide tight onto the power
table beforehand. Close looper cover.
Note: It is absolute necessary to disengage
the upper overedge looper, when attaching
the power table.
pFAF
32
For cover stitch and two-thread chainstitch:
The power table is marked with various
units of measurement. The figures on the
left are in mm, and those on the right are in
inches. These values show the distance to
the needle, when the stitch width is set at
3.5 mm. This is an aid to determine the
interval between the needle and the edge of
the fabric. Adjust the edge guide according
lv,
stitch:
For cover stitch and two-thread chain
stitch:
On completing cover stitch or chain
stitch,
set the machine in the basic position
as fol
lows:
the
ro m
ower
Open the looper cover and remove
the po
wer table upward.
gage
thing
F
stitch:
the
are in
e to
t at
ge of
rding
For cover stitch and two-thread chain
stitch:
Turn the handwheel in the direction
of the
arrow, until retaining screw A of the
upper
overedge looper is in its highest posi
tion.
Tighten the screw. Engage the uppe
r blade
(9) and push the blade guard from abov
e
into the looper cover.
For cover stitch:
Set the bed slide for the stitch width
latch to
S (see page 25). Bring the needles into
the
highest position and raise the press
er foot.
Remove the cover-stitch presser foot
and
the cover-stitch needle plate. Atta
ch the
standard needle foot and standard
presser
foot. Close the looper cover. Remove
the
needle.
33
I
Important notes on sewing with the cover
stitch
The power table is marked with various
units of measurement. The figures on the
left are in mm and those on the right are in
inches.
These values show the distance to the need
le, when the stitch width is set at 3.5 mm.
Preparing the fabric:
It is useful to press under the fabric before
hemming it. Depending on as to how wide
the seam must be stitched down, you must
press under 1/4 inch (0.5 cm) wider.
Note: The cover-stitch guide set is obtaina
ble as special accessory. You can hem your
fabric with it at ease, without having to
press under the fabric beforehand.
A
2. If you
bric, i.e.
Sew 4
ring the
wards y
and you
(just heft
position)
-
K
To start sewing:
Raise the presser foot and place the fabric
under the presser foot so the needles pierce
the fabric for the first stitch. Place the fabric
onto the power table according to the width
of the seam. When starting to sew, pull the
fabric taut towards the rear and sew slowly,
because the machine, when you start to
sew, feeds the fabric slowly.
34
Finishing sewing
1. When sewing to the edge of the fabric:
Hold the threads at the end of the seam
tightly and sew slowly off the fabric during
which the thread should be pulled lightly to
wards the rear.
Note: In most cases the differential feed has
to be adjusted. Sew a trial seam first.
Edge guid
Push the c
box, into
de can he
the left or
I
2. If you are not to sew to the edge
of the fa
bric, i.e. by tubular fabrics:
Sew 4 5 stitches on top of each
other. Du
ring the last stitch, turn the handwhee
l to
wards you until the needles pierce
the fabric
and you have heard each needle
“click”
(just before the needles are in the
lowest
position).
-
st
a
sr
After the second “click” turn the
handwheel
back, until the needles are in the high
est po
sition. Raise the presser foot. Cut
the thre
ads. Pull the needle threads to the
back and
knot them. Hold the threads at the
end of
the fabric tightly and remove the
fabric.
A<
10
10-
Edge guide
Push the edge guide, from the acce
ssory
box, into the guide holder A. The
edge gui
de can be set as required by mov
ing it to
the left or right.
The edge guide is useful for sergi
ng seams
at regular intervals with the cover stitc
h or
two-thread chainstitch.
as
35
Thread tension
The values refer to medium-heavy fabrics and
normal polyester thread
blue
preen
1.5
-1.5
-1.5
-1.5
-1.5
-4
-
pink
-3
Stitchlength
Stitchwidth
-1.5
3-4
4.5
R
-3
÷3
3
3.5
S
C
-1
+3
3
3.5
5
I
÷3
3-4
S
C
yellow
-1.5
N
-2
N
N
violet
Position
Converter
of bed slide
• = with
for stitch width E = withlatch
out
-2
-2
3
3.5
S
C
-3
-1.5
3
3.5
5
C
-1.5
-1.5
3
3.5
S
C
37
Program summary
Programs
Application
Cover-stitch seam
Sewing hems and ornamental
stitches
Needle
position
[
I
5-thread safety-stitch seam
Joining and serging of tightly
woven fabrics simultaneously
1
ç
L-o
4-thread safety-stitch seam
Joining and serging of tightly
woven fabrics simultanously
w\
2-thread chainstitch seam
I
[.01
Joining pieces of tightly woven
fabrics for upholstery covers
and denim, without serging
ol
I
=;
4-thread overedge seam
[.0
Joining pieces of fabric and
serging all fabrics simultane
ously, in particular elastic fab
rics
1001
3-thread overedge seam (wide)
Serging easily frayed fabrics
j
1
I
3-thread overedge seam (narrow>
cTc\
36
Serging easily frayed fabrics
1
I
i°
Thread
The val
normal
blue
N
-
-4
38
4.5
39
2
Application
Serging lightweight fabrics.
As flatlock seam for sewing
stretch fabrics together.
Serging delicate fabric. Decora
tive finished edges.
Sewing together and simultane
ous serging of lightweight,
highstretch fabrics.
40
Thread tension
The values refer to medium-heav
y fabrics
and normal polyester thread
blue
green
I
pink
yelllow
-4
3
-4
I
N
-3.5
-1
-2
3
-1
-4
F
Position
Converter
of bed slide
• = with
for stitch width LI = withlatch
out
3.5
3
-3.5
-1.5
Stitchwidth
violet
-O5
N
-1
Stitchlength
S
3.5
S
3.5
B
S
R
R
F
R
R
3
3.5
S
B
B
B
B
41
a
Adjusting the thread tension
The following pages contain directions for setting thread
tensions for all programs. Adjust
the tension by turning the tensioning wheel until the dot marker
is at the desired setting.
The settings for adjusting thread tension are recommendatio
ns. Fabric type, yarn quality
and needle gauge will influence seam results. For this reason
it is always best to sew a test
seam to check the interlocking of threads. It may be necess
ary to correct the thread tension
settings.
Note: All further settings required for individual programs are
to be found in the program
summary on pages 36 to 41.
Cover Stitch
blue
green
-1.5
-1.5
pink
yellow
violet
-1.5
If all tensions are optimally set, the needle
threads (green and blue> are just slightly vi
sible on the underside of the fabric. The loo
per thread (yellow> is situated loosely in bet
ween.
42
The right needle thread (green> is too loose.
Set the green thread tension to a higher va
lue.
The needle threads (green and
blue) are too
tight and the material puckers.
Set the green and blue thread tensi
on to a
lower value.
5-Thread Safety-Stitch Seam
blue
green
pink
yellow
violet
-1.5
-1.5
-3
-3
+3
Since the 5-thread safety-stitch
seam con
sists of the 2-thread chainstitch
and the 3thread overedge seam, you can refer
to the
correction possibilities of these
seams on
pages 44 and 46.
4-Thread Safety-Stich Seam
blue
green
-1.5
-4
pink
yellow
violet
-1
+3
Since the 4-thread safety-stitch seam
con
sists of the 2-thread chainstitch and
the 2thread overedge stitch, you can
refer to the
correction possibilities of these seam
s on
pages 44 and 51.
Note: Attach the converter (see page
24),
when sewing 4-thread safety-stitch
seam.
43
Two-Thread Chainstitch
blue
green
pink
yellow
-1.5
violet
+3
When all tension units are correctly set, the
needle thread blue is just slightly visible on
the lower edge of the fabric.
B
B
Top side
The needle thread (blue) is too loose.
Set the blue thread tension to a higher va
lue.
\
Undo rs ide
4-Thread Overedge Seam
Top side
blue
green
pink
yellow
N
-2
-2
-2
violet
When all tension units are correctly set, the
loops of both looper threads (pink and yel
low) are directly on the edge of the fabric.
Underside
44
The left needle thread (blue> is too loose.
The right needle thread (green> is too loose.
Set the green thread tension to a higher va
lue.
The upper looper thread (pink> appears on
the underside of the material.
The lower looper thread (yellow> appears
on the top side of the material.
Set the yellow thread tension to a higher va
lue and/or the pink thread tension to a lower
value.
Set the pink thread tension to a higher value
and/or the yellow thread tension to a lower
value.
45
3-Thread Overedge Seam
•
wide
narrow
blue
pink
yellow
-3
-1.5
green
pink
yellow
N
-1.5
-1.5
green
N
blue
violet
violet
The upper looper thread (pink> appears on
the underside of the fabric.
Set the pink thread tension to a higher value
and/or the yellow thread tension to a lower
value.
46
The needle thread is too loose.
Set the relevant needle thread tension to a
higher value.
The lower looper thread (yellow> appears
on the top side of the fabric.
Set the yellow thread tension to a higher va
lue and/or the pink thread tension to a lower
value.
The needle thread
is too loose.
Increase the tension
of the respective ne
ed
le thread.
The upper looper thr
ead (pink) is only par
tly
looped around the
edge of the fabric.
Set the pink thread
tension to a lower val
ue
and/or the yellow thr
ead tension to a hig
her
value.
The lower looper
thread (yellow) is vis
ible
on the face side of
the fabric.
Set the yellow thread
tension to a higher
va
lue and/or the pink
thread tension to
a lower
value.
47
3Thread Decorative Serging Seam
FLATLOCK
.
wide
TjTje
green
pink
yellow
-1
+3
green
pink
yellow
-4.5
N
+2
.
narrow
blue
violet
The needle thread is too loose.
Set the respective needle thread tension to
a lower value.
violet
The upper looper thread (pink) is visible on
the underside of the fabric,
The lower looper thread (yellow> is too
loose.
Set the pink thread tension to a higher value.
Set the yellow thread tension to a higher Value.
48
3-Thread Rolled Hem
-
blue
L
green
pink
yellow
-1
+1.5
-0.5
violet
The upper looper thr
ead (pink) is visible on
the underside of the fab
ric.
Set the pink thread ten
sion to a higher value
and/or the yellow thread
tension to a lower
value.
The right needle thr
ead (green) is too loo
se.
Set the green thread ten
sion to a higher va
lue.
The lower looper thread
(yellow) is visible
on the top side of the
fabric.
Set the yellow thread ten
sion to a higher va
lue and/or the pink thr
ead tension to a low
er
value.
49
Folded 3-Thread Rolled Hem
blue
green
pink
yellow
-1
-1
+3.5
violet
The upper looper thread (pink) only partly
loops around the edge of the fabric.
Set the pink thread tension to a lower value
and/or the yellow thread tension to a higher
value.
50
The right needle thread (green> is too loose.
Set the green thread tension to a higher va
I ue.
The lower looper thread (yellow) is visible
on the top side of the fabric.
Set the yellow thread tension to a higher va
lue and/or the pink thread tension to a lower
value.
2-Thread Overedge Seam, FLATLOCK
Top side
wide
I
I
—
PoH
yellow I viole I
blue I green I pink
blue
I
I
I
I
I
green
I
I
pink
—1.5
yellow
I
I
I
violet I
-0.5
Note: Attach the converter (see page 24),
when sewing the 2-thread overedge seam
(FLATLOCK).
Underside
The needle thread is too loose or the lower
looper thread (yellow) is too tight.
Set the respective needle thread tension to
a higher value and/or the yellow thread ten
sion to a lower value.
The lower looper thread (yellow) is too
loose or the needle thread is too tight.
Set the yellow thread tension to a higher va
lue and/or the respective needle thread ten
sion to a lower value.
51
2-Thread Roiled Hem
L
wide
j
narrow
blue I green
I
N
pink y
1
ellowI violet I
-
blue I green
N
I
I
I
I
pink Iyellow violet I
I
I-I
Note: Attach the converter (see page 24)
when sewing 2-thread serging seams.
The needle thread is too loose.
Set the respective needle thread tension to
a higher value and/or the yellow thread ten
sion to a lower value.
The lower looper thread (yellow) is too
loose.
Set the yellow thread tension to a higher va
lue.
52
I
2-Thread Rolled Hem
blue
green
-3.5
pink
yellow
violet
-1
Note: Attach the converter (see page 24)
when sewing 2-thread rolled hems.
The right needle thread Igreen) is too tight.
Set the green thread tension to a lower va
lue and/or the yellow thread tension to a
higher value.
The lower looper thread (yellow) is too
tight.
Set the yellow thread tension to a lower va
lue and/or the green thread tension to a hig
her value.
53
Folded 2-Thread Rolled Hem
blue
green
-1
pink
yellow
violet
-1.5
Note: Attach the converter (see page 24)
when sewing folded 2-thread rolled hems.
The right needle thread (green) is too loose.
Set the green thread tension to a higher va
lue and/or the yellow thread tension to a lo
wer value.
The lower looper thread (yellow) is too
loose.
Set the yellow thread tension to a higher va
lue.
54
_____
____________________________
Seam
2-Needle, 3-Thread Overedge Closing
blue
1
green
2
pink
yellow
violet
loose.
The left needle thread (blue> is too
er va
high
a
to
on
Set the blue thread tensi
lue.
4
241
Note Attach the converter (see page
overed
when sewing the 2-needle, 3-thread
e closing seam.
loose.
right needle thread (green> is too
higher va
Set the green thread tension to a
lue.
The lower looper thread (yellow> is too
tight.
r va
Set the yellow thread tension to a lowe
lue.
55
Machine maintenance
Cleaning the machine
Switch off electrical power
Remove the trimming waste box and open
the looper cover. Disengage the upper blade
and remove the presser foot and the needle
plate.
Use the accessory brush provided to remo
ve any waste thread from the upper and lo
wer blades, the differential feed and looper
area.
7
Lubricating the machine
Switch off the electrical power
Move the upper overedge looper into its
highest position. Lubricate the point shown
above with the oil provided in the accessory
box every time you clean the machine.
One or two drops of PFAFF sewing machine
oil are sufficient. All other parts are manu
factured from special materials and do not
require any lubrication.
56
Cleaning the rubber feet
Clean the rubber feet from time to time with
alcohol. This ensures good stability.
Changing the lower blade
Switch off the electrical power
To remove: Detach the trimming waste box
and open the looper cover. Disengage the
upper blade and move the needle(s) to the
highest position. Use the large screwdriver
from the accessories to loosen lower blade
retaining screw A. Remove the screw and
the lower blade.
To insert: Insert a new lower blade into the
recess provided and tighten the retaining
screw. Engage the upper blade and close
the looper cover.
57
Changing the light bulb (sewing light)
Switch off the electrical power
Use the large screwdriver from the accesso
ries to loosen the retaining screw of sewing
light cover (15) until it can be removed.
Push the light bulb fully into its socket. Ro
tate anti-clockwise through half a turn and
remove.
14
Guide the new light bulb (max. 15W) into
the socket and twist until both pins on the
bulb slide into the grooves.
Press the bulb right into the socket, twisting
it clockwise until it is securely fixed.
Mount the sewing light cover and tighten
the retaining screw.
58
l ac
pecial accessories
t available as specia
ptions of all sewing fee
cri
feet,
r
des
sse
find
l
pre
wil
se
the
you
erlock 4772. By using
n the following pages
t serging results.
the best from your cov
fec
get
per
to
ng
you
uri
help
ens
to
and
s
ssorie
ing time
s steps in one, thus sav
can perform variou
I...
.1!
ler.
from your PFAFF dea
ries can be purchased
eso
acc
l
cia
spe
Ihe
Order No.
Special accessory
1
Blindstitch foot
f
Cover-stitch guide set
I.
Gimp thread foot
Elastic tape foot
Shirring foot
Cording foot
Beading foot
Lace foot
93-4 15 506-23/000
93-415 560-84/000
93 415 507 70/000
93 415 506 21/000
93 415 506 20/000
93 415 506 22/000
93-415 506-24/000
93-415 507 -69/000
59
Blindstitch foot
The blindstitch foot is ideal for professiei.
sewing of invisible seams on medium-hr
vy and thick fabrics. The seam is trimmer’
serged and “blind” stitched in a single (Jr
ration.
Setting the machine
Remove the left needle. Set your machr
3-thread overedge seam (narrow> and r-’i
stitch length 4.
Working:
1
2
Raise the needle to its uppermost posi1io
and insert the blindstitch foot. Fold the
seam inwards. Now fold the seam onc
again outwards so that the edge protrudr
approx, 1 cm. Position the seam under th
sewing foot so that the folded seam part
lies beneath edge guide 2. Crease 4 nrrer
thereby, run along the edge 2 of the gur
Loosen retaining screw 1 and adjust edge
guide 2 so that upon penetration the nerrr
catches only one thread of the upper trt[rr
Sew a test seam.
60
Cover-stitch guide set
You can hem T-shirts, sweatshirts etc. with
this accessory set.
Setting the machine
Set the machine to the cover stitch (see
page 30 33).
-
Note: Use guide C and D.
Working:
Loosen the needle plate screw by half a turn
and open the looper cover. Push guide D, as
shown in illustration 1, along position ‘x”
fully under the needle plate. The lower edge
of the guide and the edge of the needle pla
te should flush. Fully tighten the screw and
close looper cover. Place guide C, as shown
in illustration 2, onto the cover-stitch foot
and fasten both using the small screw and
the washer. Turn up the seam and adjust
guide C according to the width of the seam.
D
C
Place the fabric with the top side up under
the presser foot. The hemmed seam is in
guide D, the crease is in guide C. Sew the
seam and on completion remove guides C
and D.
61
Cover-stitch guide set
Open-edged seams on T-s
hirts, sweatshirts,
etc., can be bound with bias
tape or band.
Setting the machine
Set the machine to the cover
stitch (see
page 30 33>.
-
Note: Use guides B and C.
B
Working:
Place guide C, as shown in
the illustration,
onto the cover-stitch foot and
tighten this
using the small screw and was
her.
Place guide B, as shown in
the illustration,
under the presser foot and
tighten this
using the small screw and was
her.
C
Adjust guide C according to
the width of the
binding.
Place the binding around the
edge of the fa
bric and place both under the
presser foot.
The crease of the binding is
in guide C. The
edge is in guide B. On complet
ion of sewing
remove guides B and C.
62
U
Cover-stitch guide set
Seams can be top-stitched with this special
accessory.
Setting the machine
Set the machine to the cover stitch (see
page 30 33>.
-
Note: Use guides A and B.
Working:
B
Serge the seams and underpress them on
one side. Push guide B left under the pres
ser foot, as shown in the illustration, and
tighten this using the small screw and was
her.
Push guide A from the right under the pres
ser foot, as shown in the illustration, and
tighten this using the small screw and was
her.
Place the fabric, top side up, under the pres
ser foot, so that the seam on the underside
faces the left. The crease of the seam should
lie in the inner edge of guide A, adjust guide
A as required. On completion of sewing re
move guides A and B.
63
Gimp thread foot
This presser foot is used for sewing in gimp
threads (cords, synthetic threads) up to a
thickness of 1.0 mm. It creates a wavelike
hem finish in delicate fabrics e.g. for evefling dresses and bridal gowns of curtains.
Setting the machine
Set your machine to the folded 3-thread rol
led hem.
Working:
Raise the needle to its uppermost position
and insert the gimp thread foot. Insert the
gimp thread into guide 1 and pull it through
opening 2 into lateral guide 3. Then lay the
thread under guides 4 and 5 so that it proj
ects approx. 4 inches (10 cm) towards the
back. Hold the gimp thread in place with a
few stitches, then lay the fabric under the
presser foot and continue sewing (the face
side of the fabric should be upwards).
Sew a test seam
Note: The wave effect can be accentuated
by setting the differential feed to 0.5 and
cutting your workpiece diagonal to the
threadline.
64
Elastic tape foot
This presser foot is used for sewing on
elastic tape. In the same operation, the fa
bric is trimmed and serged, and also gathe
red by the contracting elastic tape.
Setting the machine
Set your machine to the 4-thread overedge
seam. The seam width is determined by the
width of the elastic tape.
Working:
Raise the needle to its uppermost position
and insert the elastic tape sewing foot. Loo
sen screw 1 so that brake 3 at opening 2 is
opened by approx. 2 mm. Insert elastic tape
4 into opening 2 and pull it beneath the se
wing foot so that it protrudes approx. 4 in
ches (10 cm) behind the latter. Re-tighten
screw 1. The more the screw is tightened,
the greater the pressure brake 3 exerts on
the elastic tape and thus the greater the gat
her effect.
Sew a test seam.
The next step is normally to stitch the
elastic tape towards the left with one of
your machine’s elastic (expandable) stitches
(see illustration>.
Sewing on a non-elastic tape prevents stret
ching of the seams (e.g. shoulder seams> in
stretch fabrics.
Loosen screw 1 until the non-elastic tape
can pass through opening 2 without hin
drance.
65
Shirring foot
The shirring foot enables two fabrics to be
sewn together, whereby the bottom ply is
automatically gathered. It is ideal for chil
dren’s wear, as well as attaching gathered
valances for curtains, table linen or tiered
skirts.
Setting the machine
Set your machine to the 4-thread overedge
seam and the differential feed to 2.0.
Working:
1
Raise the needle to its uppermost position
and insert the shirring foot. Lift the sewing
foot and insert the fabric ply to be shirred
(face side up). Insert the second fabric ply
(face side down) under the presser foot so
that plate 1 lies between the two plies. Lo
wer the presser foot and sew the two fabric
plies together.
Sew a test seam.
Note: The degree of shirring can be chan
ged by adjusting the differential feed.
66
Cording foot
sew together
t allows you to
This sewing foo
pe between
ta
with a cording
two fabric plies
casual
for
al
Ide
n.
io
erat
them, in one op
covers.
y
er
lst
ho
gs and up
wear, sports ba
hine
Setting the mac
overedge
ne to the 4-thread
Set your machi
.
mm
4.5
width
seam and seam
Working:
t position
to its uppermos
Raise the needle
the two fa
e
ac
Pl
t.
too
ng
cordi
and insert the
ce side to
(fa
r
he
ot
of one an
bric plies on top
pe bet
ta
ng
ert the cordi
face side) and ins Position the workpiece
es.
ween the two pli
g that the
ng foot ensurin
beneath the cordi s through groove 1 in
run
cording (piping)
t.
foo
the
.
Sew a test seam
67
Beading foot
This presser foot is used for sewing on bea
ding sequins and strass bands as well as
lead and ordinary cords.
Setting the machine
Set your machine to the 3-thread overedge
seam (narrow or wide depending on bead
size> Stitch length should be between 3 and
4
Working:
2
Raise the needle to its uppermost position
and insert the beading foot. Insert the string
of beads into guide 1 and beneath guide 2
approx. 2 inches (5 cm) behind the sewing
foot. Hold the beads in place with a few stit
ches, then lay the fabric face up under the
sewing foot and sew the beads onto the sel
vage.
Note: For sewing on lead beading, we re
commend threading the two overedge loo
pers with bulk thread and correcting the ten
sion if necessary. The stitch length is
between F and 2.
If you wish to sew the beading into the fa
bric as shown to the left, the needle thread
tension must be loose (approx. -5). Lay the
material reverse side to reverse side and
guide the crease past the upper blade while
sewing. Pull the fabric apart; the beading is
now on top.
Sew a test seam.
68
Lace foot
The lace foot enables you to sew lace and
wide bands together or onto another workpiece.
Setting the machine
Set your machine to 3-thread overedge
seam (narrow) and select a stitch length bet
ween F and 2.
Working:
Raise the needle to its uppermost position
and insert the lace sewing foot. Use the lar
ge screwdriver from the accessories to loo
sen screw 1 and adjust guide 2 so that the
needle penetrates the lace as close to the
edge as possible. Tighten screw 1. lay the
lace onto the fabric, face side to face side, at
a distance of 1.5 to 2.0 cm (depending on
seam allowance) away from the selvedge
and sew it on.
When sewing two lace workpieces together,
the two halves must be guided flush along
edge guide 3.
69
Thread chart for 2-, 3- and 4-thread overedge seams
Stitch length
Fabric
Thread
Light fabrics:
organdy, fine knitwear,
taffeta, silk, lining fabrics
Cotton
Synthetic thread
70
no. 50
no. 70- 140
2.0
Medium-heavy fabrics:
coton, tricot
linen, dess materials
Cotton
Synthetic thread
no.
no.
60
140
2.0
Heavy fabrics:
tweed, suit materials,
denim, heavy cloth
Cotton
Synthetic thread
no. 30
no. 70
50
140
2.0
Cotton
Synthetic thread
no. 40
no. 70
60
140
2.0- 4.0 mm
Polyester thread
Mercerized thread
(bulk thread(
no. 120
140
1.0- 2.0 mm
Knitwear:
2 or 3-thread rolled hems
70
-
40
70
-
-
-
-
-
-
-
-
-
-
4.0 mm
4.0 mm
4.0 mm
i
Sewing problems and their solutions
These machines have been developed with ease of operati
cn in mind. No difficult or tricky
settings need to be made. Sewing problems of the kind
described below may occur as a re
sult of minor adjustment and operating errors. They can
be easily adjusted by following the
instructions.
Problem
Cause
Solution
Needle breakage
The needle was bent
or the point damaged.
Insert new needle
(see page 11).
The needle was not
fully inserted.
Insert needle fully
(see page 11).
The fabric was pulled
too firmly.
Do not pull on the fabric
when sewing,
Incorrectly threaded.
Thread properly
(see page 12- 20)
Thread has caught.
Check if the thread
is caught on the spool
stand etc.
Thread tension is too tight.
Correct the tension
(see page 42 55).
Thread beaks
,
-
Skipping stitches
Needle not fully inserted.
Insert needle correctly
(see page 11).
Incorrect needle used.
Use needle system EL X 705.
Needle bent or
point damaged.
Insert new needle
(see page 11).
Needle not fully inserted.
Insert needle correctly
(see page 11).
Incorrect needle used.
Use needle
system EL X 705.
Incorrectly threaded.
Thread correctly
(see pagel2 20)
-
Stitch formation
faulty
Incorrect setting of thread
tensions
Re-set thread tensions
(see page 42 55>.
-
3 or 4 thread overedge seam has an
irregular appearance
and the upper looper
thread has not inter
locked in the seam.
72
The converter is attached.
The converter must
be removed.
Solution
Problem
not
Machine will
gh
ou
th
al
e
at
oper
h
master switc
is on
atly
fabric not ne
trimmed,
Cause
interrupted.
Power supply
between
Waste thread
er blade.
w
upper and lo
cover
Close looper
.
(see page 8>
Clean blades.
is blunt.
Lower blade
s.
Puckered seam
n
Thread tensio
.
ht
tig
o
to
ng of
Incorrect setti
.
diffential feed
ught due to
Thread has ca
ing.
ad
re
incorrect th
d
Fabric not fe
ly.
through even
ort.
Stitches too sh
essure to low
Sewing foot pr
s.
ic
br
fa
y
for heav
essure too high
Sewing foot pr brics.
t fa
for lightweigh
er blade
Replace low
>.
57
ge
(see pa
tension.
Reduce thread
erential feed
Re-adjust diff
, 29).
28
s
ge
pa
(see
tly
Thread correc
20).
12
s
ge
pa
(see
-
length
Increase stitch
>.
27
ge
pa
ee
(s
re
ser foot pressu
Increase pres
).
(see page 21
r foot pressure
Reduce presse
).
(see page 21
73
Specifcations:
Maximum sewing speed
1300 stitches/mm.
Seam width
3
Stitch length
Presser foot
F (= 1 mm) 4 mm
exchangeable
Lubrification
manual
Presser foot height
4.5 mm
Overedge stroke
1.5 mm
Needle system
EL X 705, cat. no. 2002
Needle size
80/11, 90/14
Number of threads
2, 3, 4, 5
Dimensions (width x hight x depth)
300 x 285 x 275 mm
Weight
6.5 kg
Packing contents
1 machine
1 foot control
1 instruction manual/guarantee card
1 trimming waste box
1 machine cover
74
-
6.7 mm
-
Parts of the coverlock 4772
(24)
(25)
(26)
(27)
(28)
(29)
(30)
(31)
(32)
(33)
(34)
(35)
(36)
(37)
Thread guides with color coding
Regulator screw for presser foot pressure
Telescopic thread guide
Thread chain cutter
Thread spool stand
Thread spool pins
Thread spool centering pieces
Machine socket, foot control with power cord
Electrical power master switch
Handwheel
Regulator lever for differential feed
Stitch length adjustment knob
Presser foot lifter
Rear thread guides
(38)
(39)
(40)
(41)
Trimming waste box
Foot control
Foot control plug for machine
Power plug
017
6e
/1
o€:
G. M. Pfaff
Aktiengesellschaft
Werk Karisruhe-Durlach
GritznerstraIe 11
76227 Karlsruhe
Printed in Germany
IJruckerei Gablenz GmbH
76356 Weingarten, Stettiner Strafte 17
Information subject to change without notice
Nr.: 29429 98976/OOO
englisch 9.98
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