Singer 191D - User manual

SINGER
191 D

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
Service
Manual
SINGER*
191
D
Machine
THE
SINGER
COMPANY

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
CONTENTS
Description
of
~lachine
ADJUSTME:'-JTS
To
Set
Needle
Bar
at
Correct
Height
To
Set
Check
Spring
Height
To
Set
Check
Spring
Tension
To
Set
Presser
Bar
at
Correct
Height
To
Time
the
Se\•;ing Hook and
also
Set
the
Sewing
Hook
Sidewise
in
Relation
to
the
Needle
Feed
Reverse
Lever
Feed
Regulating
Dial
To
Time
the
Feed
To
Set
Feed
Dog
at
Correct
Height
RHlO\'AL
AND
REPLACE½ENT
OF
PRINCIPAL
ASSEMBLIES
To
Remove
the
Sev-;ing Hook
To
Replace
Oil
Filter
143.042
To
Replace
the
Sewing
Hook
To
Remove
and
Replace
the
Hook
Shaft
The
Oil
Pump
To
Remove and
Replace
the
Upright
Arm
To
Remove and
Replace
the
1',eedle Bar
To
Remove and
Replace
the
Presser
Bar
Needle
Thread
Take-up
To
Remove and
Replace
Needle
Bar
Wick
and
Needle
Bar
Connecting
To Remove
Oil
Wick
Holder
To
Install
New
Oil
Wick
Holder
The
Arm
Shaft
The
Bobbin
Winder
Shaft
Stud
Wick
• A
Trademark
of
THE
SINGER
COMPANY
Copyright
©
1980
THE
SINGER
COMPANY
All
Rights
ReserYed
Throughout
the
World
Page
1
2
2 - 3
3
4
5
6
6
7
8
9
10
10
11
12
13 -
14
14
15
15
-
17
18
18
18 -19
19 -
21
21
-22

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TO
SET
NEEDLE
BAR
AT
CORRECT
HEIGHT
PREPARATION:
Remove
face
plate,
slide
plate
and
throat
plate.
See
that
needle
is
correctly
set
in
needle
bar.
TIMING
I
MARl-:-=:::C
Lower end
of
bushing
(1),
Fig.
2
must
be
set
as
shown
in
Fig.
2.
To
reset
bushing,
loosen
screw
(2).
CHECK:
When
needle
bar
is
at
its
lowest
point
(during
rotation
of
machine
pulley),
UPPER
TIMING
MARK
on
needle
bar
should
be
level
with
lower
end
of
bushing
(1).
Fig.
2
SETTING:
(
3)
(
1)
58.73
mm
-1910200A
66.01
mm
-1910300A
~~=:::::::;:r-Ll-
--- \
~T
~-HR_O_A_T_P_LATE
SEAT
0
Loosen
clamping
screw
(3),
Fig.
2.
Raise
or
lower
needle
bar
so
that
UPPER
TIMING
MARK
is
level
with
lower
end
of
bushing
(
1).
Then
securely
tighten
sere\\'
(
3)
.
Check
timing
of
sewing
hook
as
instructed
on
page
S.
Replace
throat
plate
and
slide
plate.
When
replacing
the
face
plate,
make
certain
that
the
screw
holes
in
the
face
plate
gasket
are
aligned
with
the
respective
screw
holes
in
the
face
plate;
avoiding
injury
to
the
gasket
and
consequent
oil
leakage.
TO
SET
CHECK
SPRING
HEIGHT
PREPARATION:
Thread
the
machine
and
place
a
lightweight
material
under
presser
foot.
CHECK:
Turn
machine
pulley
over
toward
operator
slowly.
When
take-up
lever
begins
to
rise,
check
spring
(4),
Fig.
3 makes a
slight
dip
and a
return
to
its
higher
position.
Later,
as
take-up
lever
approaches
top
of
stroke,
check
spring
(4)
should
be
drawn
all
the
way
down;
setting
the
stitch.
As
lever
descends,
check
spring
(4)
returns
to
rest.

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
SETTING:
Loosen screw (5), Fig. 3. Turn stud
(6), Fig. 3 (at the same time turning
entire tension assembly) either over toward
left to lower check spring and decrease
its movement, or over toward right to
raise check spring and increase its
movement. Securely tighten set screw (5).
~ ~
IIIGIIER
) O('
NOTE: Under certain conditions of
tacking, it may be necessary to set the
check spring higher than it is otherwise
normally set.
-~
( 5)
CAITTION: Check spring height setting
must be checked each time a different foot
is applied to machine.
( 6)
TO SET CHECK SPRING TENSIO~
PREPARATION:
Thread the machine. Securely tighten
set screw (5), Fig. 4. Make certain thumb nut
is on stud (6), Fig. 4.
CHECK:
Tension on check spring (4), Fig. 4,
should be sufficient to ensure action at top
speed; but still light enough to permit it-
self to be drawn all the way down (as take-
up lever approaches height of stroke) before
any thread is drawn through the tension
discs.
SETTING:
Using a large screwdriver in slot of
stud (6), turn stud either over toward left to
decrease tension or over to right to increase
it, as shown.
-
~!ORE ,
TENSION
~ ~
LESS
TENSION
Fig. 3
TIGHTEI';
\
)~
I \
( 5)
I
I
( 6)
Fig. 4
NOTE: The tension on the check spring may require different settings
depending upon the size of thread used. Heavier thread requires more tension
to ensure correct thread control.

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
(
9)
ll
I
(B)
I
I
II
I'
(7)
!
u
PREPARATION:
TO
SET
PRESSER
BAR
AT
CORRECT
HEIGHT
Fig.
S
FOOT
RESTING
FIRMLY
uror--
TIJROAT
PLATE
AT
HIGHEST
t
POINT
Remove
face
plate
and
slide
plate.
CHECK:
Fig.
6
LOWEST
INT\
CLEAR
1.
When
presser
foot
rests
firmly
upon
throat
plate
(with
feed
dog
below
throat
plate)
there
should
still
be
some
clearance
between
guide
bracket
(9),
Fig.
5
and
lifting
lever
link
(7),
as
shown
in
Fig.
S.
2.
When
presser
foot
is
at
its
highest
point
and
needle
bar
is
at
its
lowest,
top
of
presser
foot
should
clear
lower
end
of
needle
bar,
as
shown
in
Fig.
6.
SETTING:
Loosen
clamping
screw
(8),
Fig.
5.
Raise
or
lower
guide
bracket
(9),
as
required.
Securely
tighten
screw
(8).

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TO
TIME
THE
SEWING
HOOK
AND
ALSO
SET
THE
SEWING
HOOK
SIDEWISE
IN
RELATION
TO
THE
NEEDLE
PREPARATION:
Remove
presser
foot,
slide
plate,
throat
plate
and
feed
dog.
CHECK:
When
lower
timing
mark on
needle
bar
is
level
with
lower
end
of
lower
needle
bar
bushing
(1),
the
point
of
the
sewing
hook
should
be
at
the
center
of
the
needle,
as
shown
in
Fig.
7.
Also,
when
point
of
sewing
hook
passes
needle,
clearance
between
hook
point
(10),
Fig.
8
and
needle
should
be
approximately
equal
to
thickness
of
a
piece
of
ordinary
notepaper
(about
.13
mm),
as
shown
in
Fig.
9.
NOTE:
Not
only
point
of
sewing
hook
but
entire
"FLAT"
of
hook
point
should
clear
scarf
on
needle
blade.
Normally,
a
.S
mm
clearance
is
provided
between
hub
of
hook
and
oil
retaining
·collar.
SETTING:
Loosen two
set
screws
(11),
Fig.
7
in
hub
of
hook.
Then
retighten
one
of
the
set
screws
very
lightly
so
that
the
sewing
hook
can
still
be
turned
on
the
shaft.
Hold
shaft
immovable
and
turn
hook
as
required
to
bring
point
of
hook
to
center
of
needle
as
shown
in
Fig.
7 and
at
the
same
time
adjust
clearance
between
needle
and
hook
point
as
shown
in
Fig.
9.
Tighten
set
screws
(11)
lightly,
turn
machine
pulley
to
make
certain
the
sewing
hook
is
correctly
set
in
relation
to
the
needle.
Then
securely
tighten
set
screws
(
11)
.
-5-
LOWER
TIMING
MARK
-----
HOOK
POIITT
AT
CENTER
OF
NEEDLE
Fig.
9
ON
UPWARD
STROKE
Fig.
7
Fig.
8

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
FEED
REVERSE
LEVER
Before
the
machine
leaves
the
factory,
the
spring
tension
of
the
feed
reverse
lever
is
set
at
an
appropriate
tension
for
easy
and
comfortable
sewing
operation.
If
it
is
necessary
to
adjust
the
feed
reverse
lever
spring
tension,
tip
machine
back
and
loosen
feed
reverse
lever
spring
retainer
screw
(13)
holding
the
sHring
retainer
(12)
on
the
machine
leg.
Move
spring
retainer
(12)
up
or
down,
as
required,
and
finnly
tighten
screh
(13).
The
lighter
the
tension,
the
easier
it
is
to
operate
the
feed
reverse
lever,
however
the
ten-
sion
should
be
set
a
little
heavier
for
maximum
stitch
length
and
high
speed
sewing.
Fig.
10
FEED
REGULATING
DIAL
Nonnally,
the
machine
is
adjusted
to
sew a
maximum
stitch
length
of
4.2
mm.
This
however,
can
be
changed
to
5
mm
(5
s.p.i.)
by
relocating
the
feed
regulating
dial
ser-
ration
plate
(14)
in
the
recess
on
the
reverse
side
of
the
feed
regulating
dial,
as
shown
in
Fig.
11.
When
feed
regulating
dial
serration
plate
(14)
has
been
relocated
in
the
recess
on
the
reverse
side
of
the
dial,
replace
dial
on
machine
and
turn
dial
until
feed
reverse
lever
becomes
immovable,
then
check
that
graduation
"0"
on
the
dial
is
in
12
o'clock
position.
If
adjustment
is
neces-
sary,
loosen
feed
regulating
dial
cap
screw
and
turn
dial
clockwise
or
counterclockwise,
as
required.
Securely
tighten
the
cap
screw.
CAUTION:
Make
sure
the
feed
dog
clears
the
front
and
rear
edges
of
the
throat
plate
slots
when maximum
stitch
length
is
changed
to
5
mm.
4.
2
mm
SETTING
191
S
mm
SETTING
~
..~'0
(
14)
Fig.
11

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TO
TIME
THE
FEED
Before
the
machine
leaves
the
factory,
the
feed
and
feed
lifting
eccentric
is
set
for
average
sewing
conditions;
having
the
timing
mark (15)
(for
1910200A)
or
timing
mark
(16)
(for
191D300A)
align
on
the
timing
mark.(17)
provided
on
the
arm
shaft.
If
for
any
reason,
it
is
necessary
to
alter
the
timing
of
feed
and
feed
lifting
eccentric,
the
eccentric
should
be
adjusted
and
locked
in
desired
setting
with
set
screws
(18)
and
(19),
Fig.
12.
I
(17)
Fig.
12
NOTE:
When
making
above
adjustment,
push
the
eccentric
lightly
to
the
right
so
that
feed
rock
shaft
crank
connecting
rod
(20),
feed
connecting
link
(21),
feed
regulator
(22),
and
feed
regulator
hinge
stud
(23)
are
lightly
in
contact
with
each
respective
part
with
no
binding
or
excessive
play
between
the
parts.
(Fig.
13)
Fig.
13
-7-
(18)
(
15)
(
19)
( 2 3
J
(
22
J

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TO
SET
FEED
DOG
AT
CORRECT
HEIGHT
ruLL
DEPTH
OF
TEETH
THROAT
PLATE
~~~--..---i
-
Fig.
14
When
the
feed
dog
is
at
its
highest
position,
approximately
the
full
depth
of
all
tfue
teeth
should
project
above
the
top
surface
of
the
throat
plate,
as
shown
in
Fig.
14.
Before
checking
the
height
of
the
feed
dog,
set
the
machine
for
the
longest
stitch.
To
adjust,
loosen
the
clamping
screv,
(24),
Fig.
15,
and
raise
or
lower
the
feed
dog
(which
is
fastened
to
the
feed
bar
(25),
Fig.
15)
as
required.
Then
securely
tighten
screw
(24).
-11
Fig.
15
If
it
is
found
necessary
to
adjust
the
feed
dog
height
due
to
the
material
being
sewn
and/or
exchanging
the
feed
dog and
throat
plate,
it
should
be
adjusted
in
the
manner
explained
above.
NOTE:
Feed
Dog
should
not
contact
edges
of
the
throat
plate
slots
during
its
movement
but
should
be
located
centrally
in
relation
to
the
front,
rear
and
sides
of
the
throat
plate
slots.
-8-

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
INSTRUCTIONS
FOR
REMOVAL
AND
REPLACEMENT
OF
PRINCIPAL
ASSEMBLIES
CAUTION
TO
MECHANICS
Machines
of
Class
191D
are
made
with
extreme
precision
in
machining
and
assembly,
and
the
"Superfinish"
process
provides
microscopically
smooth
bearing
surfaces.
Therefore,
special
care
should
be
taken
not
to
permit
any
misalign-
ment
of
parts
or
to
cause
any
scratches
or
nicks
on
the
bearing
surfaces
by
careless
assembly
or
handling
of
parts.
Any
such
damage
might
render
the
ma-
chine
incapable
of
the
long,
trouble-free
service
for
which
it
is
designed.
(
25)
,
27
i
11
(26)-=--1~
TO
REMOVE
THE
SEWING
HOOK
(30)
Fig.
16
(28)
Fig.
17
Remove
the
needle,
slide
plate,
throat
plate
and
bobbin
case.
Remove
the
screw
(26),
Fig.
16 and
the
bobbin
case
holder
position
bracket
(27),
Fig.
16.
Loosen
the
two
set
screws
(11),
Fig.
16
in
the
hub
of
the
hook and
turn
the
machine
pulley
over
toward
the
operator
until
the
feed
bar
(25)
is
raised
to
its
highest
point.
Turn
the
sewing
hook
until
the
thread
guard
(28),
is
at
the
bottom,
as
showTI
in
Fig.
17.
Turn
the
bobbin
case
holder
(29),
Fig.
17
until
the
notch
(30)
is
also
near
the
bottom,
as
shown
in
Figs.
17
and
18.
The
sewing
hook
can
then
be
removed from
the
hook
shaft.
-9-

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TO
REPLACE
OIL
FILTER
143042
While
the
sewing
hook
is
off
the
shaft,
it
is
advisable
to
replace
the
oil
filter
143042,
Fig.
17
in
the
end
of
the
hook
shaft.
Unscrew
the
filter
from
the
center
of
the
shaft
at
(31),
Fig.
17
and
replace
with
a
complete
new
filter
143042.
(29)
(
32)
(27)
(26)
____
:..::..!.!_
TO
REPLACE
TI-IE
SEWING
HOOK
(30)
Fig.
18
When
placing
a
new
sewing
hook on
the
shaft,
have
the
sewing
hook
thread
guard
(28)
at
the
bottom
and
the
bobbin
case
holder
(29)
turned
to
the
position
shown
in
Fig.
18,
so
that
the
hook
will
clear
the
feed
bar
(25).
Place
the
hook
in
position
on
the
shaft
and
turn
the
bobbin
case
holder
(29)
until
the
notch
(30)
is
at
the
top,
as
shown
in
sketch
at
left
above.
Replace
the
bobbin
case
holder
position
bracket
(27),
making
certain
that
the
finger
(32)
(see
above)
enters
the
notch
(30)
at
the
top
of
the
bobbin
case
holder.
Then
securely
fasten
the
position
finger
by means
of
the
screw
(26).
Replace
the
needle.
Time
the
sewing
hook,
as
instructed
on
page
5.
Replace
the
bobbin
case,
throat
plate
and
slide
plate.
-10
-

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
( 3 5 l
( 34)
( 36)
TO REMOVE AND REPLACE THE HOOK SHAFT
Fig. 19
Remove and replace the hook shaft in the following manner:-
1. Remove the sewing hook, as instructed on page 9.
2. Mark the two lower bevel gears (33) and (34), Fig. 19, with chalk or crayon,
on one tooth of one gear and the corresponding space for that tooth in the
other gear. This is important, as these gears may become separated during
removal of shaft. These marks will then make it possible to obtain the
original mating position of the gears.
~- Loosen the two set screws (35) and (36) in hook shaft bevel gear. While
holding the two gears (33) and (34) in mesh, as instructed in Fig. 19, withdraw
the old hook shaft and INSERT THE NEW SHAFT.
4. Replace the sewing hook, as instructed on page 10.
5. Make certain that set sere~ (35) seats over flat on the hook shaft. Remove
all end shake from hook shaft, pushing gear (34), Fig. 19, toward the hook on
the shaft. Securely tighten first set screw (35), then securely tighten the
second screw (36)
6. Time the sewing hook as instructed on page S.
NOTE: Set screw (35) is the first of the two set screws to appear on the
hub of the bevel gear (34) as the machine pulley is turned over toward operator.
- 11 -

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
THE
OIL
PUMP
TO
REMOVE:
1.
Remove
oil
tubes
(40),
(41)
and
(42)
while
holding
open
the
oil
tube
clamps
(37),
(38)
and
(39),
with
a
small
screwdriver,
just
enough
to
permit
removal
of
the
oil
tubes.
2.
Remove two
oil
pump
screws
(43).
3.
Carefully
pull
the
entire
oil
pump
off
the
lower
end
of
the
upright
arm
shaft.
(37)
(4
3)
Fig.
20
Fig.
21
TO
REPLACE:
1.
Replace
oil
pump
on
lower
end
of
upright
arm
shaft
and
turn
machine
pulley
slowly
to
check
that
the
lug
at
the
bottom
of
the
hole
in
the
impeller
(44)
is
engaged
in
the
slot
provided
for
it
on
the
lower
end
of
upright
arm
shaft.
(Fig.
22)
2.
Replace
the
two
oil
pump
screws
(43),
Fig.
20.
Make
certain
that
machine
turns
freely
as
screws
are
tightened.
3.
Replace
oil
tubes
(40),
(41) and
(42).
pushing
them
as
far
as
they
will
go on
each
respective
nipples
provided
for
them on
the
oil
pump
while
holding
the
oil
tube
clamps
(37),
(38)
and (39)
open
as
instructed
under
oil
pump
removal.
NOTE:
Check
that
the
oil
tubes
are
not
in
contact
with
other
movable
parts.
-12-
LUG
~!UST
ENGAGE
IN
SLOT
Fig.
22

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TO
REMOVE
AND
REPLACE
11-iE
UPRIGHT
ARM
SHAFT
(See
Fig.
23)
(
46
l
(45)-
1
Fig.
23
REMOVAL:
If
it
is
found
necessary
to
remove
the
upright
arm
shaft
(45),
it
should
be
removed
in
the
following
manner:-
1.
Remove
oil
pump,
as
instructed
on
page
12.
2.
Follow
the
instructions
in
Steps
2
and
3
for
removal
of
hook
shaft
or.
page
11
except
that,
instead
of
removing
hook
shaft,
merely
remove hook
shaft
bevel
gear
(33),
Fig.
19.
3.
Remove arm
top
cover.
4.
Mark
the
two
bevel
gears
(46),
with
chalk
or
crayon
on
one
tooth
of
one
gear
and
the
corresponding
space
between
the
teeth
of
the
other
gear
so
that
these
gears
may
be
re-assembled
in
their
original
relative
positions
without
difficulty,
if
necessary.
5.
Loosen
set
screws
(47)
in
bevel
gear
at
upper
end
of
upright
arm
shaft.
To
loosen
set
screws
(47),
remove
screw
(48)
in
the
rear
of
the
arm
and
insert
screwdriver
through
the
hole.
6.
While
holding
upper
bevel
gears
(46)
in
mesh, draw
upright
arm
shaft
(45)
down
and
out
of
machine.
REPLACEMENT:
1.
Before
installing
upright
arm
shaft,
make
certain
it
has
the
bevel
gear
(33),
Fig.
19,
correctly
fastened
at
the
lower
end
of
shaft.
2.
Insert
upright
arm
shaft
up
through
upper
bevel
gear,
as
shown
in
Fig.
23.
-13-

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
3.
Turn
shaft
so
that
one
of
the
two
set
screws
(47)
will
bear
upon
the
upper
gear
flat
on
the
shaft
and
tighten
the
set
screws
(47).
4.
Replace
and
set
hook
shaft
bevel
gear
as
instructed
in
Step
Son
page
11.
5.
Replace
oil
pump,
as
instructed
on
page
12.
6.
Replace
top
cover.
TO
REMOVE
AND
REPLACE
THE
NEEDLE
BAR
(See
Fig.
24)
(53)~/~9)
~
(
8)
(7)
Fig.
24
(
3)
Remove
the
needle
bar
in
the
following
manner:-
1.
Remove
needle,
needle
set
screw
and
needle
bar
thread
guard.
2.
Remove
face
plate.
3.
Loosen
clamping
screw
(3).
4.
Loosen
screw
(49)
sufficiently
to
allow
needle
bar
to
pass,
then
slip
needle
bar
up
through
both
needle
bar
bushings
and
out
of
machine.
NOTE:
If
it
becomes
necessary
to
remove
upper
needle
bar
bushing
(SO)
first
remove
screw
(49) and
take-up
lever
oil
guard
(51).
Then
loosen
set
screw
(52)
and
drive
bushing
(50)
down
and
out
of
head
of
machine.
Use
a 10
mm
driving
pin.
Before
replacing
needle
bar,
replace
upper
needle
bar
bushing
(50),
by
driving
it
down
into
hole
provided
for
it
in
head
of
the
machine.
Make
certain
top
of
bushing
(50)
is
level
with
top
of
arm.
Tighten
set
screw
(52).
Replace
the
needle
bar
in
the
following
manner:-
1.
Slip
needle
bar
do¼~
through
both
bushings
in
head
of
the
machine.
Tighten
screw
(3).
2.
Replace
needle
bar
thread
guard,
needle
set
screw
and
needle.
3.
Set
needle
bar
at
correct
height
and
re-
place
face
plate
as
instructed
in
page
2.
4.
Replace
oil
guard
(51)
and
fasten
it
secure-
ly
to
bushing
with
set
screw
(49).
-14 -

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TO
REMOVE
AND
REPLACE
THE
PRESSER
BAR
To
remove
the
presser
bar:-
1. Remove
presser
foot,
face
plate
and
presser
bar
pressure
regulating
thumb
screw
(53),
with
presser
bar
guide
from
head
of
the
machine.
2. Loosen
clamping
screw
(8)
about
one
turn
(just
enough
to
make
it
loose).
3.
Slide
presser
bar
up
through
lifting
lever
link
(7),
Fig.
24,
and
bushing
and
out
of
machine.
To
replace
the
presser
bar:-
1.
Slip
presser
bar
down
through
lifting
lever
link
(7) and
the
lower
presser
bar
bushing.
Check
that
there
is
some
clearance
between
presser
bar
guide
bracket
and
lifting
lever
link
(7).
2.
Replace
presser
foot
and
presser
bar
pressure
regulating
thumb
screw
(53)
with
presser
bar
guide.
3.
Set
presser
bar
at
correct
height,
as
instructed
on
page
4,
and
tighten
clamping
screw
(8).
NEEDLE
THREAD
TAKE-UP
(
65)
(60)
(55)
a~
(62)
(56)
(63)
(
61)
(64)
(
57)
Fig.
25
(58)
Fig.
26
To
remove
the
needle
thread
take-up:-
1.
Remove
face
pl
ate,
arm
plug
scn:·w
(large)
(54) and
arrr.
plug
screw
(smal1)
(SS) from
machine.
2.
Remove
needle
bar,
upper
needle
bar
bushing,
presser
bar
pressure
regulating
thumb
screw,
presser
bar
and
guide
bracket.
-15-

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
3.
Turn
machine
pulley
as
required
to
reach
screv.·
(56),
Fig.
26,
in
needle
bar
crank
through
hole
left
by
removal
of
plug
(54).
Loosen
set
screw
(56).
4.
Turn
machine
pulley,
as
required,
and
through
the
same
hole
loosen
set
screw
(57).
CAUTION:
DO
NOT
DISTURB
the
smaller
hexagon
head
position
screw
(58),
Fig.
26,
which
holds
the
needle
bar
crank
at
its
correct
position
on
the
horizontal
arm
shaft.
5.
Loosen
small
set
screw
(59),
Fig.
25,
in
the
rear
of
the
am
of
the
machine.
6.
Turn
machine
pulley
until
thread
take-up
lever
link
(65)
is
at
its
lower
dead
point
and
remove
thread
take-up
lever
link
(65)
and
thread
take-up
lever
link
hinge
stud
(66)
taking
care
not
to
pull
loose
its
wick
(67)
until
the
stud
is
removed.
7.
Back
the
end
of
thread
take-up
lever
(60),
Fig.
25,
to~~rd
the
inside
of
the
machine,
turning
the
machine
pulley
as
required,
until
the
take-up
is
free
of
the
slot
provided
for
it.
8.
The
thread
take-up
lever
link
assembly,
including
parts
(60),
(61),
(62),
(63)
and
(64),
can
now
be
pulled
free
of
the
needle
bar
crank.
To
replace
the
needle
thread
take-up:-
1.
Make
sure
that
the
wearing
plate
(64)
is
in
place
and undamaged on
the
face
of
the
needle
bar
crank,
as
show~
in
Fig.
25.
2.
Turn
machine
pulley
as
required
to
make
set
screw
(57)
accessible
through
hole
at
(54),
Fig.
26,
in
rear
of
machine
head.
3.
Assemble
thread
take-up
lever
link
assembly,
including
parts
(60),
(61),
(62),
(63)
and
(64)
to
needle
bar
crank
so
that
set
screw
(57)
seats
squarely
on
the
flat
provided
for
it
on
thread
take-up
crank
(63),
Fig.
26.
4.
Insert
screwdriver
through
arm
plug
screw
hole
(54)
and
securely
tighten
set
screw
(57).
5.
Test
for
side
play
by
pushing
take-up
lever
(60)
gently
left
and
right;
there
should
be
0.025
to
0.050
mm
side
shake
between
lever
and
wearing
plate
(64).
6.
Move
thread
take-up
crank
inward
or
outward
in
needle
bar
crank,
as
required,
to
obtain
clearance.
7.
Slip
the
upper
end
of
the
take-up
lever
(60)
through
the
slot
provided
for
it
in
the
head
of
the
machine.
8.
Turn
machine
pulley
as
required
to
make
set
screw
(56)
accessible
through
arm
plug
screw
h~le
(54),
Fig.
26,
in
rear
of
machine
head.
9.
Insert
screwdriver
through
this
hole
(54)
and
securely
tighten
set
screw
(56).
10.
Insert
a
fine
flexible
guide
wire
{piano
wire)
down
through
arm
plug
screw
hole
(55)
and
from
right
to
left
(machine
pulley
end
to
head
end)
through
hole
provided
in
arm
casting
for
take-up
lever
link
hinge
stud.
11.
Insert
take-up
lever
link
hinge
stud
(66)
and
its
oil
wick
(67)
through
take-
up
lever
link
(65).
Hook
the
ends
of
the
oil
wick
(67)
leading
out
of
the
stud
to
the
guide
wire,
then
insert
stud
(66)
into
its
hole
in
the
arm
casting
while
pulling
the
oil
wick
leaders
out
through
the
arm
plug
screw
hole
(55)
taking
care
not
to
pull
it-loose
from
the
stud.
-16-

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
NOTE;
Make
sure
that
the
take-up
lever
link
hinge
stud
set
screw
(59)
will
bear
squarely
on
the
flat
on
stud
(66)
and
that
the
stud
is
pushed
fully
into
the
arm
casting.
12.
Securely
tighten
set
screw
(59).
13.
Push
the
two
oil
wick
leaders
back
into
arm
plug
screw
hole
(55) and
down
through
hole
in
arm
casting
and
into
slot
in
arm
shaft
bushing
taking
care
that
wick
is
slack
over
the
edges
of
the
holes
in
the
casting
at
point
A
to
insure
free
passage
of
oil.
(Fig.
27) Use
tweezers
through
the
screw
hole
(55)
to
loop
the
wick
and
bring
it
into
positive
contact
with
the
arm
shaft
approximately
at
point
B.
NOTE:
DO
NOT
FORCE
the
wick
leaders
down
too
tightly
against
the
edges
of
holes
at
point
A,
as
shown
in
Fig.
28,
as
this
will
decrease
the
flow
of
oil
from
the
arm
shaft
to
the
thread
take-up
lever
link
area.
CAUTION:
If
the
bottom
of
either
oil
wick
leader
is
caught
on
the
ledge
as
shown
at
C,
Fig.
29,
no
oil
can
be
taken
up by
the
wick
to
be
carried
to
the
thread
take-up
lever
link
area
where
it
is
needed.
Make
sure
that
the
oil
wick
leaders
are
pushed
all
the
way
down
into
the
smaller
hole,
without
jamming,
until
they
touch
the
arm
shaft,
as
shown
in
Fig.
27.
1....,.....
~
C
...........
A
WICK
NOT
REACHING
01
L
(
65)
Fig.
27
Fig.
28
Fig.
29
14.
Turn
machine
pulley
slowly,
by
hand,
at
least
one
complete
revolution
testing
take-up
for
binding,
end
shake
and
noise.
If
binding
occurs,
recheck
clearance
between
take-up
and
wearing
plate
(64)
and
between
hinge
stud
(66)
and
machine
casting.
15.
Replace
guide
bracket
(9)
in
head
of
machine,
as
shown
in
Fig.
5.
16.
Replace
presser
bar
pressure
regulating
thumb
screw
(53),
Fig.
24.
17.
Replace
and
adjust
upper
needle
bar
bushing
and
needle
bar
with
their
accesso-
ries,
as
instructed
on
pages
2
and
14.
18.
Replace
and
securely
tighten
arm
plug
screws
(54)
and
(55).
19.
Replace
the
face
plate
as
instructed
on
page
2.
-17-

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TO
REMOVE
AND
REPLACE
NEEDLE
BAR
WICK
AND
NEEDLE
BAR
CONNECTING
STUD
WICK
To
remove
needle
bar
wick and
connecting
stud
wick,
move
take-up
lever
(60),
so
that
it
does
not
interfere
with
removal
of
oil
guard
(51).
Then remove
face
plate
and
screw
(49);
lift
take-up
oil
guard
(51),
with
the
top
wicks,
up and
out
of
machine.
When
replacing
the
oil
guard
(51),
which
carries
the
needle
bar
wick
and
connecting
stud
wick,
make
sure
that
lower
end
of
the
stud
wick
drops
into
oil
pool
behind
lower
needle
bar
bushing
and
that
the
loop
of
needle
bar
wick
is
placed
behind
the
needle
bar,
as
shown
in
Fig.
30.
Fig.
30
TO
RE'1OVE
OIL
WTCK
HOLDER
Oil
wick
holder
includes
two
oil
wick
leaders
for
the
two
sets
of
needle
bearings
in
the
needle
bar
connecting
link
and
thread
take-
up
as
shown
in
Fig.
31.
It
is
removed
in
the
following
manner:-
1.
Remove
face
plate,
needle
bar
and
upper
needle
bar
bushing
from
machine,
as
in-
structed
on
page
14.
2.
Remove
oil
wick
holder
screw
(68).
3.
Pulling
gently,
draw
entire
oil
wick
holder
assembly
out
of
the
head
of
the
machine.
TO.INSTALL
NEW
OIL
WICK
HOLDER
1.
Remove
top
arm
plug
screw
(55),
Fig.
26.
( 4
9)
(60)
ll
(
51)
\}I
//
NEEDLE
f
BAR
win
(l)
0
STUD
WJO-
(
62)
Fig.
31
2.
Insert
two
oil
wick
leaders
into
hole
in
arm
casting,
as
shown
in
Fig.
32
so
that
wick
is
slack
over
edge
of
oil
wick
holder
at
point
D.
This
will
insure
free
passage
of
oil.
Use a
screwdriver
through
arm
plug
screw
hole
(55) and
push
the
two
oil
wick
leaders
down
into
slot
in
arm
shaft
bushing
so
that
the
wicks
are
in
contact
with
the
oil
wick
leaders
for
thread
take-up
lever
link
hinge
stud
already
in
the
slot.
-18-