Singer 3851 User manual

-4
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—I
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0

irItftcat
jf
OiIic
:1
i’his
certifies
that
this
Sewin,sz
Machine
is
tIiorou1iiy
tested
:
and
tuspected
in
the
/zctory
and
we
can /iily
guarantee
t
:
100°
in
con/orinity
to
A
(,rode
St(z,i(tard
to
meet
user
s
best
:
.-
/tci1ities.
DEALER
ADDRESS
CITY
STATh
-
SIØNATURE
:

INDEX
-
GNFRAL
INSTRUCTIONS
-
Name
oc
Parts
Page
Introduction
2
Safe
Guard
the
Action
of
Your
Machine
3
To
Wind
the
Bobbin
4
To
Replace
the
Needle
6
Needles
and
Thread
6
To Thread
the
Bobbin
Case
7
Removing
and
Inserting
the
Bobbin
Case
8
Threading
Machine
10
To
Prepare
for
Sewing
II
Thread
Tension
12
Adjusting
Pressure
on
Material
14
Adiustng
the
Si1ch
15
To
Regulate
the
Zigzag
stitch
16
Adjusting
the
Dropeeder
18
To
Oil
the
Machine
19
Sewing
Hints
21
OPERATlNG
INSTRCTIONS
‘r
Operating
Instructions
Straight
Stitching
24
Zigzag
stitching
24
For
Fancy
mbroidery
Works
25
&mbroidering
and
Monograrnming
25
Darning
26
Sewing
on
Buttons
26
Hemming with Zigzag
Stitches
28
-:
Blindatitching
28
Quilting
30
Cording
30
Button
Holes
31
Adjustable
Cloth
Stitching Guide
31

1.
Patch-O-Matjc
Darner
2.
Take-
up
Lever
3.
Arm
Thread
Guide
4.
Cam Holder
5.
Zigzag
Width
Regulator
3.
Spool
Pin
Balance
Wheel
8. Automatic
Bobbin
Winder
i.
Stitch
Length
Regulator
Ifl.
Bobbin
Winder
Thread
H
itide
II.
Drop
Feeder
7.
Needle
Plate
3. Feed
Dog
ii. Hinged
Plate
15.
Presser
Foot
16. Presser
Foot
Thumb
Screw
17.
Needle
Clamp
Thread
Guide
18.
Retaining
Thread
Bar
19.
Thread
Guide
20.
Wire
Check
Spring
21.
Thread Tension
Dial
22.
Needle
Clamp Screw
I
—
I

INSTRUCTION
MANUAL
FOR
ZIGZAG
INTRODUCTION
Your
Zigzag
sewing
machine
is the
product
of
many
years
of
research
and
development
in
the
field
of
household
sewing machines.
It
is
also
the
ultimate
in
efficiency,
quality
and
design,
yet
its
moving
and
wearing
parts
such
as
needles,
bobbins,
bobbin
cases,
hooks
and
so
forth
are
standard
and
interchangeable
with
parts
immediately
at
sewing machine
stores
throughout
the
world.
This
precision
sewing
head, with
its
simplified
design
and
many
labour saving
extras,
is
the
result
of
our
incessant
exertion
and each machine
is
built
to
the
most
exacting
specifications
under
our
rigid
quality
control
program.
\ou
have
made
an
excellent
choice
and
you
are
deserved
of
the
proud
owner
of
Super
Dc
Luxe
sewing
machine, which
will
surely
lead
to
your
happy
life.
You
will
SOOti
realize
how
quickly
you
will
become
attached
to
your
new
machine
as
a
friend
of
the
family who really
lends
you
a
band.
The
ingenious
construction
makes
it
possible
to
do
many
jobs
on
the
new
machine
which until
now
had
to
be
done
by
hand.
—

SAFE
GUARD THE
ACTION
OF
YOUR
MACHINE
Make
sure
the balance
wheel
always
turns
toward
the
operator.
Never
run
the
machine
with
the
presser
foot
in
the
down position
without
cloth between
the
presser
foot
and the
feed dog.
Never
run
machine
when
the
bobbin case and
the
needle are
threaded
without
first placing
material
under
the
presser
foot.
Caution, never
try
to
help
the
machine
feed
by
pulling
the material
through
the
feed.
This
will
create
a
bent needle
condition.
The
machine’s
feed
is
entirely automatic.
Never
operate
the
machine
without
the
hook
race
cover the
bobbin
case
in
position.
Keep
a
small
piece
of
cloth
underneath
presser
foot
whenever
machine
is
not
in use.
This
will
prevent
damage
to
feed
dog
and
presser
foot.
Do
not
operate machine when
presser
foot
lever
is
raised.
Keep
slide
or
hinged
closed
when
operating
machine.
—3—

TO WIND
THE
BOBBIN
It
is
necessary
to
understand
the
function
of
the
Stop Motion
by
means
of
which
the
balance
wheel
is
disconnected
from
the
sewing
mechanism, when required,
thus permitting
the
winding
of
the
bobbin
without
sewing.
a)
Turn
the
stop motion
knob
toward
you
while
holding
the
balance
wheel with
the
left
hand.
This
will
then
permit
the
balance
wheel
to
turn
freely
while
the
needle bar
remains
motio
nless.
b)
Place
a
spool
of
thread
on
the spool pin
at
backside
of
arm.
c)
Pass
the
thread through
the
notched thread
guide (3).
d)
Draw
the
thread
down
through
the
bobbin
winder
thread
guide
(16)
at
right
corner
of
the
base
of
machine.
e
Now wind
the
end
of
the
thread around
an empty
bobbin
seven
or
eight
times
and
place
threaded
bobbin
on the
spindle (C)
of
the
bobbin winder.
f)
Press
the
bobbin
into
the
spindle
with
the
left
hand,
making
sure
that
the
Pin
on the
spindle
fits
into the
slot
in
the
bobbin.
g)
Push
the
bobbin
winder
levever
(D)
down until
the
small
rubber
wheel
presses
against
the
hub
of
the
balance
wheel and the clasp
(E)
falls
between
the
sides
of
the
bobbin
holding
it
in
position.
h)
Turn
the
balance
wheel
toward
you
and
run
the
machine
as
in sewing.
When
bobbin
is
full,
the
bobbin
winder
will
automatically
stop.
i) Break
off
the
thread
and
detach
the
bobbin
from
the spindle.
j)
Hold
the
balance
wheel
firmly
with
left
hand
and
with
right
hand
turn
the
stop
motion
knob
away
from
you
until
the
machine
is
tight
and then
the
needle bar
moves with
the
turning
of
the
balance
wheel.
You
can
perform
this
operation
also
when
the
machine
is
working.
In
this
case
you
will
operate
in
the
same
way
as
explained
above,
but
without
disconnecting
the
balance
wheel.
—4—

cJ-

TO
REPLACE
THE
NEEDLE
FIU
lU
IU’(ll( hnr
hilist
-
hv
ii
u
halnn
vlUtI
wu
rd
u
hv
hunti
A
snn
h
u
Ii
lulnu
r(u
n
iln
nmnl
{lc
h
In
Iui
ul,
\\UI
)(I1
all
wing
I
In
ill
unli
F
IC
1(1
III
UI
II(I IhU
u
IC-Fin UO
J
F
H
AT
FI.\l
llll
l\\ \Rl
liii:
IH\I\\(I.
\Vlll1I
I
Ci
H
C
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Ii
IC
In
itiI
Ii
t
ji
Ih
1
ureeti
w
tau:i
l
eCeille
lamp
eureIv
Jr
lu—i
eiHI
ii;
ge
e(llC
irequentlv
NEEDLES
AND
THREAD
Never
use
1
bent
needle,
nCr
otie
web
a
blunt
point,
since
this
Cause
imperfect
stitches
and
may
cause
the
ntLulle t
break
tnless
the
needle
is
in
clear
II
he
stop, flat
sale toward
the
balance
wheel.
tue
Inicuimi
Will
Iii
out
01
Line.
tint
skipped
Cr
imperfect
stitches
Cvii
r’ult
,imnl
needle—
may
break
JIm
ze
i
lie
lIe
sliottlil
‘i inform
ii
lie
size
ot
tIme
thread
and
huh
should
Ic
—umalile
to
Ill
material
I
-c
a
needle
sulfietentlv
large
to permit the
thread
to
pass
freely
through
th
eye
Jim
general
mwillg,
use
the
satne
size
tltread
in
the
bobbin
as
is
used
on
lop

TO
THREAD
T4E
BOBBIN
CASE
A)
(B)
Hold
the
bobbin
case
between
the
left
thumb
and
forefinger with
the
slot
up.
With
5
or
6
inches
of
thread
trailing
in
the
palm,
hold
the bobbin
between
the
thumb
and
first
two
fingers
of
the
right
hand.
Fig.
A)
Insert
the bobbin into the
bobbin
case
and
pull the
trailing
thread
into
the slot,
down
and
to
the
left
until
it
enters
the
delivery
eye
under
the
tension
spring.
(A,
Fig. C)
Fig.
(B)

There
should
be
a
slight
tension
on
the
thread
us
:t
is pulled
through
the delivery
eve
and
the
bobbin
should
unwind
freely,
Ihe
tension
may
be
increased
by
turning
the
tension
screw
B)
to
the
RIGHT
and
decreased
by
turning
the screw
to
the
LEFT.
Fig.
(C
REMOVING
AND
INSERTING
THE
BOBBIN
CASE
In the
lollowing
oucrattons
the
needle must
always
be
ABOVE
the
surface
of
the
machine.
Raise
the
needle
by
turning
the balance
wheel
TOWARD
Y( )U
by
hand.
Raise
the
hitiged
slide
plate,
with
left
thumb
and
forefinger,
open
the
hinged
latch
A)
at
the
front
of
the
bobbin
case
and hold
securely
as
you
withdraw
bobbin
case
from
around
the
holder
pOSt.
When
held
in the
above
manner
the
bobbin
will
not
fall
out
of
the
bobbin
case.
After
winding
a
fresh bobbin
and
threading
the
bobbin
case,
latch
(A
i
with
left
thumb
and
forefinger,
to
prevent
the
bobbin
from
falling
out.
13
8

Keeping
the
protruding finger (C top
side
toward the
delivery eye
(B), pass the bobbin
case
around the
holder post
I))
until the
finger
enters the
delivery eye.
When in correct position
a stud
on the
holder post will catch the latch
mechanism
holding the bobbin case firmly in
place.
This operation
is easy-NEVER FORCE IT.
The three
or four inches of
thread hanging
free
from the bobbin case
will
be brought up
through
the needle plate stitch hole.
C
B
D
A

THREADING
MACHINE
Vu
prevent
breaking
of
the
upper
thread.
it
is
essent]al
to
thread
the
machine
IS
tie-cnhed
helow:
a
Bring
needle
to
its
highest
posttion
hv
turning
tile
balance
wheel
toward
you.
b
Place
the
spool
ii
thread
on
one
spool
holder
pin
at
the
hack
of
arm,
and
lead
the thread
the
notched thread
guide
:3
c
I
)raw the
thread
down
throngh
the
Pension
I
)ises
2(
from
right
to
left.
I )raw
the
thread
up
over
the
\‘tire
Check Sprtng
2
and
through
the eve
of
the
Retaining
lhread
(
uide
Bar
2H
from
right
to
left.
e
Now
teke
tile thread
up
through
the eve
of
Take
Lp
Lever
2)
and down
through
tile
thread
guide
2
I
f)
Then
hook
into
Wire
(
uide
2-i
attached
to
the
Needle
Clamp
and
finally
pass it
front
right
to
left
through
the eve
of
the
needle,
leaving
about
four
inches
of
thread hanging
free.
liw
machine
is
now ready
for
sewnig.
it
is
ittlportant
lice tile
machine
i,
threaded,
II)
make
certain
that
the
presser
foot is
down, and that
there
is
fabric
betweetl
presser
foot and
needle
plate.
Failure
ill
observe
this
precaution
may
&:Iuse
the threads
to
get
tangled
utlllerneatil
tile needleplate,
jatll
the
shuttle
hook
atld
damage
or
break
tile
needle.
‘,ote: Refer
tile
)\uinl)ers
to
P.
1.
i0

TO
PREPARE
FOR SEWING
NEEDLE
TI IREAD
PICKS
UP
BOBBIN
TIIREAI)
AS Ft )l.L(
)\VS:
Holding the
loose
end
of
the
needle
thread
in
your
left
hand,
turn
the balance
wheel toward
von
by
hand
until
the
needle
moves
down
and
up
again
to
its
highest
point.
Pull
the
needle
thread
gently
and
the
bobbin
thread
will
come
up
with
it
through the
needle
hole.
If the
bobbin
thread
does
not
rise,
check
to
see
if
at
Presser
least
3
or
4
inches
of
bobbin
thread
is
hanging
Bar
loosely from
the
bobbin case.
Then
place
both
ends
of
the
thread
back
between
the
two
presser
foot.
toes.
Presser
F oor
A
Feed
Dog
—H—

THREAD
TENSION
For
perfect
stitching,
the
tension
on
the upper
and
under
threads
should
be
equal,
and
just
sufficiently
strong
to
lock
both
threads
in
the
center
of
the
work
(A).
If
the
tension
on the
needle
thread
is
too
tight,
or
if
that
on
the
bobbin
thread
is
too loose, the
needle
thread
will
lie
straight
along
the upper surface
of
the
material
making
an
imperfect
stitch
(B).
If the
tension
of
the
bobbin
thread
is
too
tight,
or
if
that
on
the
needle
thread
is
too
loose,
the
bobbin
thread
will lie
straight
along
under
side
of
the
material,
making
an
imperfect
stitch
C).
—--—12

Regulating
the
needle
tension:
Minor
imperfections
in
Decrease
the
stitch
can
usually
he
corrected
by
varying
the
Tension
needle
tension
unIv.
Increase
J
Tension
To
increase
the
tension,
turn the
thumb
nut
clockwise
and to
lessen
the
tension,
turn
the
nut in
the
opposite
direction.
The
tension adjust
from
0
to
9
in
one turn,
with
0 being
the
lightest
tension
and
9
being
the
tightest.
All
adjustments
should
be
made
gradually,
not abruptly,
and the
required
tension setting
will
vary
with
the
size
of
thread
being
used
A
little
practice
will
make
instant
tension
adjustments
possible.
All
adjustments
should
be
made
while
the
presser
foot
is
down since
an automatic
release
does
not permit
adjustments
to
he made
when
the
foot
is
up.
If
a
perfect
stitch
cannot
be
obtained
by adjusting
the needle
thread
tension,
it may
be
necessary
to adjust
the
bobbin
thread
tension
as explained
on page
, Fig.
C.
This
machine
is correctly
adjusted
before
leaving
the
factory
and
checked and
readjusted
before
the
dealer
delivers
to
you
A careful
regulation
of
the tensions
on this
machine
will assure
you
of the finest
seams
that
mechanical design
will
produce.
—13——

ADJUSTING
PRESSURE
ON
MATERIAL
This
is
located
on
the top
of
the
machine
directly
over
the
presser
bar
and
presser
foot.
Pressure
on
material
must
be
varied
according
to
the
materials
to
he
cwn.
Instead
of
ordinary
Presser
Regulat
ing
Thumb
Screw,
this
machine
is
equipped
tth
1)
irner
P
itch
(
)
\litii
)
fot
quid
ker md
easier
adjustment
of
pressure
of
presser foot
on
niateriiL
The
nri’ssure
will he
increased
simply
iw
pressing
downward
on
the top
of
regulator
until
the
desired
tension
is
obtained.
When
the
regulator
is
at
its
bottom,
the
maximum
pressure
shall
h
given,
To
lessen
the
pressure,
turn
the
body
clockwise
liv
which
will
automatically
jump
op
inside part
of
regulator
reducing
the
pressure
to
the
minimum,
In
this
position,
tnencling,
darning,
monogram work
etc.,
may
he
done by
nlovnig
material
slowly
by
hand
while running
mnachoic at
a
fair
speed.
It
is
worth rememneritig
that
the
heavier
the
material,
the
heavier
the
Iresstire
and
the
lighter
the
tnaterial,
the
lighter
the
pr’sure.
X\hcti.
however,
is
anpliud
more
ban
iccus-arv.
it
will
cause
heavy
ru titling
of
the
machine,
lurnce
pressure
must
always
be
adjusted
within the
Nuiiahle
limit.
-
- ii

ADJUSTING
THESTITCH
In
order to
change length
of
stitch,
this
machine
can
he
adjnsted
to
make
“0”
to
5”
indicated
by
the
numerals
on the
stitch indicating
view-finder,
with
“1”
being
the
smallest
stitch and
“5”
being
the
longest.
To
set
the
stitch
properly,
turn
the
dial
until the
desired
number
appears
in
the view-finder
and
the
number corresponds
to
desired
stitch length.
A
little
experience
will
teach
you
which
number
gives you
the
proper
stitch
for
whatever
material
you
are working
with.

TO
REGULATE
THE
ZIGZAG
STITCH
A.
ZIGZAG
width
lever
B.
Stopper
lock
C.
ZIGZAG width
stopper
Loosening
the
stopper
lock
screws
, set
the ZIGZAG wiath
stopper
C
to O’
position and
move the
ZIGZAG
width
lever
J\ to
the left
as
far as
it
will go,
and then
you
can do
straight
sewing
in an
ordinary
manner.
By
simple
operation
of
ZIGZAG width
lever
A
fancy
stitch
patterns
can
easily
be
macic
at
your
will.
16

First
of
all,
loosen
the
lock
screws
B;
and
set
the
stopper
C
at
desired
width position
respec
tively.
Tighten
the
lock
screws
B
setting
the
zigzag
width
stopper
C
at
the
number
desired.
Thus, a
running
zigzag
stitching
is
made.
The
luck
screws
move
the
width
stoppers
C
right
and
left
at
the same
time.
Set
the
width
stoppers
C
at
the
number
graduated
on
the late.
Ihe
numbers
ndicate
the
width
of
zigzag
stitches
in
MILLIMETERS
when the Zigzag
width
lever
A
set
to 4”, the width
of
/igzag
stehes
become
the
largest
and
when
the
lever
A
is
set
to
‘1)’’.
to
extreme
left,
the
stitches
will
he
straight
as
in
an
ordinary
manner,