Pfaff coverlock 4872 User manual

PFAFF
coverlock
4872
‘F
U
U
I
PFAFF
coe10Ck
482
Instruction
Manual

N

Parts
of
the
coverlock
4872
1
Upper
needle-thread
tension
2
Upper
needle-thread
tension
3
Carry
handle
4
Thread
tension/upper
looper
thread
5
Thread
tension/lower
looper
thread
6
Thread
tension/two
thread
chainstitch
looper!
cover
stich
looper
7
Tension
keys
+
and
—
8
LCD
display
9
Slide for
sewing
speed
pre-selecfion
10
Tension
release
key
11
Program
selection
keys
EE
and
e
12
MemorykeyM
13
Memory
selection
key
P
14
Looper
cover
15
Blade
guard
16
Looper
disengaging
lever
17
Standard
presser
foot
18
Needle
plate
19
Swivel
plate
20
Adjusting
knob
for
seam
width
21
Seam
width
viewing
window
22
Needle
holder
23
Sewing
light
cover
24
Adjusting
knob
for
the
pressure
foot
pressure
25
Upper
overedge
looper
26
Lower
overedge
looper
27
Swiveling stitch
width
latch
28
Two-thread
chainstitch looper
29
Threading
aid
for
the
two
thread
chainstitch
looper!
cover
stitch
looper
30
Movable
upper
blade
31
Fixed
lower
blade
32
Clamp
spring
for
serging
thread
chains
33
Needle
plate
disengaging
lever
34
Handwheel
for
lowering
the
upper
blade
35
Tweezers
36
Converter
37
Allen
key

For
easier
understanding
of
this
instruction
book
pease
f&d
out this
and
the
bst
page when
reading.
Safety
ru’es
For
the
United
Kingdom only
The
eads
must
definitely
not
be
connected to
the
safety
lead
terminal
nor
to
a
plug
with
three
pins.
The
wires
in
the
mains
lead
are
colored
according
to
the
following
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
terminal
which
is
marked
with
the
letter
N
or
colored
black.
The
wire which
is
colored
brown
must
be
connected
to
the
terminal
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
3A
spare
fuses
must
be
used
as
approved
by
ASTA
according
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
agencies.
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
person
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 unattended.
•
Before
servicing
the appliance
or
replacing
lamps,
unplug the
machine.
You
wiN
find
the
contents
on
page
4
and
5.

mportant
safety instructions
For
the
United
States
only
This
sewing machine
is
designed
and
manufactured
for
HOUSE
HOLD
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 5
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
tall
or be
pulled
into a
tub
or
sink.
Do
not
place
in
or
drop
into
water
or
other
liquid.
V!ARNNG
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
openings
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,
oi
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
1NSTRUC11ONS
N
A
SAFE
PLACE

Notes
on
safety
Notes
on
safety
for
domestic
sewing
machines
according
to
EN
60335-2-28 or
IEC
335-2-28.
1.
The
user
must
exercise
adequate
cau
tion
with
regard
to the
up
and-down
movement
of
the needle
and
constantly
observe
the
sewing
area
during
work.
2.
When
leaving
the
machine,
during
main
tenance
work
or
when
changing
mechan
ical
parts
or
accessories,
always
discon
nect
the
machine
from
the
main
power
by
unplugging
the
lead
cord
from
the
wall
outlet.
3.
The
maximum
permissible
wattage
for
the
sewing
lamp
is
5
watts.
4.
The
tension
of
the
belt
drive
must
only be
adjusted
by
a
PFAFF
mechanic.
5.
The
machine
must
be
put
into
operation
according
to the
indications
on
the
speci
fication
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
socket
by its
cord.
9.
If
this appliance
is
used
for
another
pur
pose
than that intended
or
if
it
is
wrongly
operated,
we
cannot
accept
any
liability
for any
damage
caused.
10.To
avoid
the
risk
of
electric
shock,
do
not
open
the
machine.
There
are
no
parts
inside the
machine
which
the
user
can
repair. This
is
the
exclusive
responsibility
of
our
qualified
service
staff.
11.Be
sure
to
use
only
original
PFAFF
parts.
supply
with a
nominal
voltage
of
+1—
10
%
and
a
rated
frequency
of
+1—
4%.
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
50°
F
(10° C)
to
104
°F
(40°
C)
Humidity
20
%
to
80
%.
Storage
temperature
-
13°
F
1-
25°
C)
to
+
140°
F
)60° C).
The
machine
is
insensitive
to
interference,
but
it
should
not be
used
in
the
direct
vicinity of
electronic
appliances
such as
radios,
televisions,
PCs,
radio
transmitters,
etc.
This
machine
is
a
high quality
electro
nic-mechanical appliance,
it
is
a
machine
for
supervised
use
in
the
home.lt
should
be
operated
in
such
a
way
that t
is
not
subjec
ted
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
machine
by
knocking
or
dropping
st.
Cleaning
Housing
and
display:
To
clean
the housing,
use
a dry,
clean
ml
soft
cloth
which
is
free
of
lint.
To
remuv”
any
stubborn
dirt,
use a
soft
cloth with
.1
hol
or
paraffin.
Please Notel
Never
use
insecticides
or
chemical
products
such as
petrol
(gas)
or
thin
chemic,tls
to
cle
an
the
housing.
12.
The
machine
is
designated
for
a
mains

Simpe,
up4odate
sewing
Congratulations!
You
have
bought
a
highquality
product
that
provides unique
advantages.
Your
new
coverlock
4872
can
take any
material
in
its
stride
and
will
sew
through
thick
and
thin for
you.
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
instruction manual
nothing
can
go
wrong.
It
is
certainly
time
well
spent,
since
it
is
the
only
way
to
find
out just
what
your
machine
can
do
and
make
full
use
of all
its features.
If
you
have
any
further
questions,
just
ask
your
PFAFF
dealer.
He
is happy
to
be of
service
with
any
help
or
advice.
So
now
let’s
get
started
I
We
wish you
many
enjoyable
hours
creating your
very
own
fashion
ideas!
3

Contents
Page
Accessories
.
6
Accessories,
special
68,
69
Accessory
box
6
Adjusting
the
machine
to Prog.
1,
2, 3,
4
36,
37
Changing
a
spool
on
a
threaded
machine
24
Clamp
spring
30
Cleaning
the machine
65
Cone
thread
adapter
10
Converter,
attaching
33
Cover
stitch,
important
notes
on
sewing
51,
52
Differential
feed
38,
39
Differential
feed
setting,
changing
and
storing
42
Electrical
connection
7
Electrical
power
master
switch
7
Error
44
Foot
control,
connecting
7
Key
functions
40
Language,
choice
41
LCD
Display
40
Light
bulb
(sewing
lamp),
changing
67
Loopercover
8
Lubricating
the
machine
65
Machine
cover
6
Maintenance
65-
67
Needle
holder
13
Needle
inserting
tool
13
Needle plate
disengaging
lever
64
Needle plate,
removing
64
Needle
position
12
Needle
threader
25
Needle,
changing
13
Power
table
37
Presser
foot
11
Presser
foot
lifter
10
Presser
foot
pressure
29
Presser
foot,
changing
29
Program overview
46
- 48
Programmable
memories,
deleting
all
44
Programmable
memories, notes
on
storing
44
4

Contents
Page
Rubber
feet, cleaning
...,.,....,...,...,...................... 65
Safety instructions
1, 2
Seam width
adjusting
knob
34
Seam width viewing
window
34
Seam width, setting
34
Sewing light cover
67
Sewing
probiems and their solutions
70, 71
Sewing speed
pre-se(ection 29
Specifications
72
5 pooi
disc
10
Spool
holder 7
Stitch
formation correction measures
49
62
Stitch length adjustment knob 35
Stitch
length setting, changing and storing
42
Stitch length, adjusting 35
Stitch programs
programmable memories,
activating
41
Stitch
width latch, swiveling
32
Telescoping thread guide 9
Tension settings, changing and storing
43
Thread chain cutter
30
Thread chart
63
Thread guide, Clip-on 10
Thread net
9
Thread tension, setting
45
Thread unreeling disc 9
Threading aid for the two
thread chainstitch looper/cover stitch looper. . . . 19, 21
Threading paths/overview 26 - 28
Threading the
lower overedge looper (yellow> 16, 17
Threading the
needle(s)
22, 23
Threading the two thread
chainstitch looper cover stitch looper
(violet) . . .
18
- 21
Threading the
upper overedge looper (pink) 15
Threading, important note 24
Threading/Thread guides 14
Upper
blade, changing
66
Upper blade,
disengaging 31
Upper blade, securing 35
Waste
container 8
5

Accessory
box
Open
the
accessory
box
56
by
gently
pres
sing
the
bottom
of
the
box
inwards.
The
fol
lowing
accessories
can
be
found
in the
box:
1 Overlock
needle
system
EL
X 705,
cat.
no.
2002
2 Thread
nets
(5>
3
Thread unreeling
discs (5>
4
Screw
driver
5
Needle
threader
6
Wrench
7
Needle
inserting
tool
8
Replacement
upper
blade
9
Clip-on
thread
guide
10
Transparent
presser
foot
(F>
for
cover
stitch
and
two-thread chainstitch
11
Machine
oil
12
Cleaning
brush
13
Edge
guide
Further
accessories
The
following
accessories
can
be
found
be
hind
the
swivel
plate
19:
1
Converter
2
Tweezers
3
Allen
key
Machine
cover
The
machine
cover
protects
the
machine
from
dust
and
dirt.
When
the
sewing
process
is finished, push the
telescoping
thread
guide 39
together.
The
spool
stand
41
must
be
pushed
to
its
full
extent
into
the
machine,
regardless
of
whether
a
spool
is
lock
attached.
Place
the
cover over
the
machine.
The
accessories
should
be
stored
in
the
accessory
box
or compartments
behind
the
swivel
plate.
6

I
/
III11I1
Operating instructions
Electrical
connection
Connect the
lead
cord
between
the
socket
45
of the
machine
and
the
wall
outlet.
Master switch
When you
turn
on the
master
switch
46 the
sewing
lamp
is
illuminated.
The
machine
is
now
operational.
(/____•S\
1I1!II!!IIII
Connecting
the
foot
control
Connect the
plug of
the foot
control
to
the
connection
socket
47 of
the
machine.
The
pre-selected
sewing
speed
range
(see
page
29) is
regulated
by pressing the
foot
control.
I
Notes
on safety
This
appliance
has
a
polarized
plug
(one
blade wider than the
other).
To reduce the
risk
of
electric
shock,
this
plug is
intended
to
fit in
a
polarized
out
let 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
elec
trician
to
install
the
proper
outlet.
Do not
modify
the plug
in any
way.
For control
sewing machine,
foot
con
troller
type
F 8 VC-485
has
to
be used.
Ii
7

Looper
cover
Push
the looper cover
14
fully
to the right
and then swivel
it down.
Five
types
of stit
ches
and
their threading
paths
are portray
ed
in color on
the inside of the
looper cover.
Note: The
electricity
supply
of
the machine
is cut
off as soon as
the looper cover
or swi
vel
plate
19 is
opened,
for
safety reasons,
i.e. sewing
with the machine
is no longer
possible.
-‘ !
PFAFF
Waste
container
Insert the upper
latch of the
waste container
53
into the
upper slot of
the looper
cover
14.
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
waste container,
repeat
this
procedure
in the reverse
order.
cjr
8

—
—
Spool holder
Before
placing thread cones/spools
on
machine
you
must pull the
spool holder 41
fully away from the
back of machine.
Thread
net
&
Synthetic
threads generally
unwind too
quickly from
the thread spool. Thread nets
have been
included to allow
easy
use
of the
se
threads. Pull the thread net (located
in
the accessory
box)
over
the spool from
be
low. Place the
spool
on the
spool
holder
cat
ching the bottom
of
the thread
net with the
spool
pin.
_1
Pcnrc
Telescoping thread
guide
Pull
the telescoping
thread guide
39
upwards
to its highest position.
To ensure optimum thread
feed, turn
the
telescoping parts slowly
until
you hear the
locking balls click
into
place.
The thread unreeling disc
(in the accessory
box)
is
used for small
spools/spools with
notched or rough
ends. Place
the
spool
on
the
spool
pin
42.
Place the
thread unreeling
disc
on
top
of the spool.
Make sure the
spool
disc 44 is
used under the
spool.
Thread
unre&ing disc
9

It
is
advantageous
to
use the
thread
unree
ling
disc 44 when
sewing
with
large
spools
(5,000
—
10,000
m).
To
do this, place
the
cone
thread
adapter
43
onto
the
spool
pin
42.
With
synthetic
threads,
the
spool discs
take up
any
play
or
surplus
in
the
thread
and
guarantee
excellent
thread
feed.
Presser
foot
lifter
The
presser
foot can
be
raised
and lowered
using
the
presser
foot
lifter
51.
The
maxi
mum
vertical
lift
of
6.5
mm
for
the
presser
foot for
particularly
thick
fabrics
can be
achieved
by pressing
the
presser
foot
lifter
towards
the
rear.
Clip-on
thread
guide
Use
the
clip-on
thread
guide
accessory
when
sewing
with
decorative
thread.
Clip
this onto the
telescoping
thread
guide
39
and
thread
the
machine
as
shown
in
the
il
lustration.
Use
the
thread
net
and
the
thread
unreeling
disc.
Once
an
initial
thread
chain
has
been
crea
ted,
the
presser
foot
lifter
no
longer
needs
to
be
raised
if
you continue
working
with
the
same thread
and
presser
foot,
It
is
suffi
cient
to
gently
lift
the
front part
of
the pres
ser
foot using
your
thumb.
Slide
the
fabric
under
the raised
part
of
the
presser
foot.
The
fabric
is
automatically
taken
up
and fed
into
the machine
when
you
activate the
foot
control.
ill!
Spool
disc/cone
thread
adapter
\
/
10

Presser foot
•\
‘4
\
‘
With the
standard
presser
foot 10
use the
setting “A”
of
the
spring-loaded
presser
foot latch
for the cover
stitch
programs
(Progs.
1, 2,
3),
the two-thread
chainstitch
(Prog.
4),
the
4-thread
safety-stitch
seam
(Prog.
191
and the 5-thread safety-stitch
seam
(Prog.
20)-
The
transparent
presser foot F
from
the
accessories
can also be
used
for
the cover
stitch
(Prog. 1, 2,
3)
and the two-thread
chainstitch
(Prog.
4).
For
all other programs
use the
standard
presser
foot 10 and
the setting “B”
for the
spring-loaded
presser
foot latch.
Changing
the presser foot
Switch
off the eectricaI
power
To
remove: Raise
the needle(s)
to the
highest position
by
turning
the handwheel
towards
you.
Raise
the
presser
foot and
press
the
lever
A
at the
rear of the presser
foot holder.
Pivot
the
presser foot
clockwise
until the front
half
of presser foot
clears
holder
and
remove by
sliding
foot away
from
you
towards back
of
machine.
To
attach: Place the
presser foot
behind and
perpendicular
to the sewing
foot holder.
Pivot the presser
foot counterclockwise
until
the pin of
the
foot is directly
under
the
presser
foot holder
clamp. Lower
the
presser
foot
lever and
press
lever A, if
necessary,
until the foot
then
clicks into
place.
Check:
Please
lift
the
presser
foot
lever to
ensure
that the
presser foot
is properly
locked into
place.
I
11

Need’e position
This machine
has
5
needle
positions and
can sew with a
maximum
of three needles
at
any one time. The needle
positions
concerned
are LO,
Li, L2, Ri
and R2.
The
tightening/fastening
screw
is located
directly above the corresponding
needle.
Note:
If
the needles LO,
Li and L2 have
been
inserted, the left needle
will
be
the lowest of
the three.
The different
needle positions are
depicted
in
a
schematic
drawing in the instruction
manual.
Also refer to the
examples above
and below.
Insert the
needle(s)
as
shown on
the LCD
display.
Note: If both the needles
R2 and
Ri
have
been
inserted, the left needle
will be so
mewhat
higher
than the
right
needle.
If
the needles
L1 and
L2
have
been inserted,
the left needle will be somewhat
lower than
the
right needle.
If
the needle
LO and L2 have been
inserted,
the left needle
will also
be
lower than the
right
needle.
o
1L2R2
0
12 1R2
EU
0
1L21R2
EILU
0
1L21fl2 0
1L2
1R2
o 1L2
1R2
UJ’EJ
1L21R2
V
12

Changing
the
needle
Switch
off
the
eectrica
power
To
remove:
Lower
the presser
foot
and
move
the needle(s)
to
the highest
position
by
turning
the
handwheel.
Push
the needle
inserting
tool
(from
the
accessory
box
56)
from below
upward
fully
over
the needle.
Loosen
the
fastening screw
of
the
needle
(without
removing
it)
with the
Allen
key and
pull
the needle
down
to
remove.
To insert:
Insert
the
needle
into
the
hole
E
of
the needle
inserting
tool, so
that
the
flat
needle shank
K
laces
the
flat side
L of
the
in
serting
tool. Now
insert
the needle
fully
into
the holder
and
tighten
the
fastening
screws.
Remove
the
needle
inserting
tool.
Overlock
needle types
EL
X
705,
cat.
no.
2002
are
required
for this
machine.
I
I
I
13

Threading the thread
guides
Place the spools on the
spool pins 42. You
will find
information on the thread
net, thre
ad
unreeling disc,
reel
disc
and cone thread
adapter
on pages
9
and 10.
Thread through
the thread guides 38
from the back to the
front following the colored
threading paths.
Pull the carry
handle
3
upwards.
Thread
through
the underside of
the carry handle
and
through the rear
thread guides
52
using
both hands to
pull the thread
down until it
slips under the
thread guide. Guide the
thread through
the
tension discs and pull it
down
until
it
is
positioned firmly between
the tension discs.
Return the
carry handle
to
its original
position.
‘tj
I
11
r
I \\
ria-
Note:
Thread in a sequence of 1 to 5.
14

Threading
the
upper
overedge
‘ooper
(pink)
i —
If
11
L
I
3I
I
—
I
Thread
through
the
thread
guides
1
to 8,
which are
marked
with
a
pink
dot.
Turn
the
handwhe&
towards you until
the
upper
overedge
looper 25
is
in
its
highest
position.
Thread
in a
sequence
of
1 to
9.
Note:
To
make
this
task
easier, use the
tweezers
which can
be
found
behind
the
swivel
plate.
Thread
from
the front
through
the
eye
of
the
upper overedge
looper
9.
Pull
approximate
ly
4”
(10
cml
of
thread through
the
looper
and
place
it
to
the
left
under
the
presser
foot.
5-.
;___
4
1.
4
65
.1
15

Threading
the
‘ower overedge
‘ooper
(yeflow)
Turn
the handwheel
towards
you
until the
lower
overedge
looper 26 is
on the extreme
right.
To make this
task easier, use
the
tweezers
which can
be
found behind
the
swivel plate.
7
1
Threadinasequenceofi
to
10.
,-
Note:
2
in
JJL
5
—
16