UnionSpecial 63400 Series Instruction sheet

LEWIS
• COLUMBIA
INDUSTRIAL
SEWING
MACHINES
STYLES
63400A
63400B
CLASS
63400
CATALOG
No.
121M
SECOND
EDITION
HIGH
SPEED
STREAMLINED
LOCKSTITCH
MACHINES
UNION SPECIAL
CORPORATION
NEST
QUAUTY
CHICAGO

Catalog No. 121 M
INSTRUCTIONS
FOR
ADJUSTING
AND OPERAT ING
LIST OF
PARTS
CLASS 63400
Stre
amlined
Locks titch
Styles
63400 A 63400 B
Second Edition
®
1961
By
Union
Special
Corporation
Rights
Reserved in All Countries
UNION
SPECIAL
CORPORATION
INDUSTRIAL SEWING
MACHINES
CHICAGO
Printed in U.S.A.
August,
1981
2

IDENTIFICATION
OF MACHINES
Each
UNION
SPECIAL
machine
is
identified
by a
Style
number
which
is
stamped
into
the
name
plate
on the
machine.
Style
numbers
are
classified
as
standard
and
special.
Standard
Style
numbers
have
one
or
more
letters
suffixed,
but
never
contain
the
letter
“Z”.
Example:
“Style
63400
A”.
Special
Style
numbers
contain
the
letter
“Z”.
When
only
minor changes
are
made
in
a
standard
machine,
a
“Z” is
suffixed
to
the Standard
Style
nuinber.Example:
“Style
63400
AZ”.
Styles
of
machines
similar
in
construction
are
grouped
under
a class
number
which
differs
from
the
style
number,
in
that
it
contains
no
letters.
Example:
“Class
63400”.
APPLICATION
OF CATALOG
This
catalog
applies
specifically
to
the
Standard
Styles
of
machines
as listed
herein.
It
can
also
be
applied
with
discretion
to
some
Special Styles
of machines
in
this
Class.
Refer
ence
to
direction,
such
as
right,
left,
front,
back,
etc.,
are
given
from
the
operator’s
posi
tion
while
seated
at
the
machine.
Operating
direction
of
the
handwheel
is
toward
the
operator.
STYLES
OF
MACHINES
High Speed
Streamlined
Long
Arm
Lockstitch
Machines,
One
Needle,
Light,
Medium
and
Heavy
Duty,
Drop
Feed,
Rotary
Hook,
Horizontal
Hook
Shaft,
Push
Button
Stitch
Regulator,
Stitch
Length
In
dicator,
One
Reservoir
Enclosed
Automatic
Lubricating
System,
Head
Oil
Siphon,
Adjustable
Hook
Oil
Control,
Automatic
Head
Oiling,
Needle
Bearing
Adjustable
Feed
Eccentric,
Needle
Bearings
for
Take—up
Lever
and
Needle
Bar
Driving Link,
Feed Timing
on
Lower Main
Shaft,
Maximum
Work
Space
to
Right
of
Needle
Bar
11 1/8
Inches.
*63400
A
For
miscellaneous
plain
seaming
operations
on
light
and
medium
weight
work,
1
9/64
inch
needle
bar
travel.
Type
183
GXS
or
183
GYS
needle.
Specify
presser foot,
throat
plate,
feed
dog,
stitches
per
inch,
thread
size,
needle
type
and
size,
attachments
and
guides.
63400
B
For
miscellaneous
plain
seaming
operations
on medium
and
medium
heavy
weight
work,
1
13/64
inch
needle bar
travel.
Type 180
GXS
or
180
GYS needle.
Specify
presser
foot,
throat
plate,
feed
dog,
stitches
per
inch,
thread
size,
needle
type
and
size,
attachment
and
guides.
*
DISCONTINUED
—
In
most
instances,
component
parts
can be
ordered
for
customer
repair.
NEEDLES
Each
needle
has
both
a
type
and
size
number.
The
type
number
denotes
the
kind
of
shank,
point,
length,
groove,
finish
and
other
details.
The
size
number,
stamped
on
the
needle
shank,
denotes
largest
diameter
of
the
blade
measured
across
the
eye.
Collectively,
the
type
number
and
the
size
number
represent
the
complete
symbol.
Needle
Type
180
GXS
or
180
CYS
is recommended
for Style
63400
B
and
needle
Type
183
GXS
or
183
GYS
is
recommended
for
Style
63400
A.
Their
description
and
the sizes
available
are
listed
below.
Type
No.
Description
and
Sizes
180
GXS
Round
shank,
round
point,
lockstitch,
short length,
ball
eye,
single
groove,
wide
angle groove,
struck
groove,
deep
spot,
ball
point,
chromium
plated
—
sizes
075/029, 080/032, 090/036,
100/040,
110/044, 125/049, 140/054,
150/060.
180
GYS
Round
shank,
round
point,
lockstitch,
short
length,
ball
eye,
single
groove,
wide
angle
groove,
struck
groove,
deep
spot,
chromium
plated
—
sizes
075/029,
080/032, 090/036,
100/040,
110/044, 125/049,
140/054,
150/060.
183
GXS
Round
shank,
round
point,
lockstitch,
extra
short length,
ball
eye,
single
groove,
wide
angle groove,
struck
groove,
deep
spot,
ball
point,
chromium
plated
—
sizes
025,
075/029, 080/032,
090/036,
100/040, 110/044.
183
GYS
Round
shank,
round
point,
lockstitch,
extra
short
length,
ball
eye,
single
groove,
wide
angle groove,
struck
groove,
deep
spot,
chromium
plated
—
sizes
028,
080/032, 090/036,
040,
044.
3

NEEDLES
(Continued)
To
have
needle
orders
promptly and
accurately
filled,
an
empty
package, a
sample
needle,
or
the
type
and
size number
should
be
forwarded.
Use
description
onlabel.
A
complete
order
would
read:
“1000
Needles,
Type
180
(IXS,
Size
080/O32’
Selection
of proper
needle
size
should
be
determined
by
the
size
of
the
thread
used.
Thread
should
pass freely
through
the
needle
eye
in
order
to produce a good
stitch
formation,
SELECTING
THE
SIZE
OF
THE
NEEDLE
The
strength requirement
of
the
seam
produced
is
largely
dependent
upon the
size
of
the
thread
employed,
The
following
table
shows the
preferred
size
of
needle
for
a
given
size
and
kind
of
thread.
The
choice,
however,
should
give
consideration
to
factors
referred to
above,
which
may
dictate
the
selection
of a
needle
size slightly
larger
or
smaller
than
the
size
specified.
Cotton
Thread
Mercerized
Thread
Needle
Size Size Size
0
150/060
30
B
140/054
to
150/060
36
A
125/049
to 140/054
40
A
110/044
to
125/049
50
0
110/044
to
125/049
60
00
100/040
to
110/044
70
000
090/036
to
100/040
80
0000
080/032
to
090/036
90
0000
080/032
to
090/036
100
-
075/029
to
080/032
IDENTIFYING PARTS
Where
the
construction
permits,
each
part
is
stamped
with
its
part number.
Parts
too
small
for
a
complete
catalog
stamping
are
identified
by letter
symbols
which
distinguish
one
part
from
another
that
is
similar
in
appearance.
Part
numbers
represent
the
same
part,
regardless
of
the catalog
in
which
they
appear.
IMPORTANT!
ON
ALL
ORDERS,
PLEASE
INCLUDE
PART
NAME
AND
STYLE
OF
MACHINE FOR
WfIICH
PART
IS
ORDERED
4

ORDERING
OF
REPAIR PARTS
ILLUSTRATIONS
The arrangement
of
this catalog
is to facilitate
easy
and
accurate
ordering
of
Class
63400
replacement
parts.
Six exploded
view plates
cover
the Standard
Styles
listed
in
this
catalog.
Each
plate
presents
a
sector of
the
machine,
parts
being
aligned
as
in
their
assembled
po
sition.
Small
keyline
views
show by a
blackended
area
exactly
where
the
parts
being
discussed
fit
in
the assembled
machine.
On the
page
opposite
the illustration
will
be
found
a listing
of the
parts
with
their
part numbers,
descriptions
and
the
number
of
pieces
required
in the
particular
view being
shown.
Numbers
in the first
column
are reference
numbers
only,
and merely
indicate
the
position
of
the
part
in
the
illustration.
Reference
numbers
should never
be used
in
ordering
parts. Always
use
the part
number
listed
in
the
second column.
Each
exploded
view
plate
carries
a reference
number for
each
part
for sale.
Sub—assemblies,
which
are sold
complete,
or
by
separate
part,
are
in
a
bracket
or
a
solid line
box
on
the
picture
plate.
Component
parts of
sub—assemblies,
which
can
be furnished
for
repairs,
are
indicated
by
indenting
their
descriptions
under
the
description
of the
main
sub—assembly. Example:
20
29126
DD
Feed Driving
Eccentric
and Connecting
Rod Assembly 1
21
61438
B
Feed
Drive
Eccentric
Connecting
Rod
1
22
660—225
Needle Bearing
1
23
88
Set
Screw
1
In those
cases
where
a
part
is
common
to all of
the machines
covered
by this
catalog,
no specific
usage
will
be mentioned
in
the description.
However,
when
the
parts
for
the various
machines
are
not
the same,
the
specific
usage
will
be mentioned
in
the description,
and, if
necessary,
the
difference
will
be shown
in the illustra
tion.
At
the
back
of the
book will
be found
a numerical
index of
all
the
parts
shown
in
this
book.
This will
facilitate
locating
the
illustration
and
description
when
only
the
part number
is
known.
USE GENUINE
REPAIR
PARTS
Success
in
the
operation
of
these
machines
can be
secured
only
with
genuine
UNION
SPECIAL Repair
Parts
as
furnished
by
the
Union Special
Corporation,
its
subsid
iaries
and
authorized
distributors.
They
are designed
according
to the most
approved
scientific
principles,
and
are
made
with
utmost
precision.
Maximum
efficiency
and
durability
are assured.
TERMS
Prices
are strictly
net
cash and
subject
to
change
without
notice.
All
shipments
are
forwarded
f.o.b.
shipping
point.
Parcel
Post
shipments
are insured
unless
other
wise
directed.
A charge
is made
to
cover
the
postage
and
insurance.
5

INSTALLING
CAUTION!
When
unpacking,
DO
NOr
lift
machine
out
of
box
by
placing one
hand
on
handwheel,
Using
both
hands
on
bed
casting, lift
gently.
Before
leaving
factory,
each
UNION
SPECIAL
machine is sewed
off,
inspected
and
carefully
packed.
After
In
machine
and
accessories
have
been
removed
from
the
packing
box,
the
following
steps
should
be
followed:
PIlE PARATION
OF
MACHINE
FOR
INSTALLATION
A
bag
of
assembly
parts,
consisting
of
one
frame thread
eyelet,
one
eyelet attaching
screw,
one
extra
bobbin,
two
hinge studs,
and
two
screws
for
holding
miscellaneous
attachments
to
the
bed
plate,
is
packed
with
each
machine.
Insert hinge
studs
in
holes
provided
for
thom
in
rear
of
cloth
plate
.
Assemble
the
upper
frame
eyelet
(A,
Fig. 2).
S’I’ANDAIID
ACCESSORIES
Included
also
with
each machine
is
a
box
of
STANDARD
ACCESSOROIS--containing
one
bobbin
winder
assembly,
the
machine
mounting
frame,
one
nil
drain
jar
and
its
clamp
spring,
one
knee
lifter assembly
and
its
rubber
pad, bed
piisitioninc
spring and
screw,
four
isolator
pads
and
clips,
and
one
machine
rest
pin.
These
parts
ace
essential
when
setting
up
the
machine.
‘FABLE
FOPS
Lockstitch
machines
ace
installed
in
table
tops,
prepared
with
cut-out,
so
that
the
bed
plate
is
FLUSH
with
the
top
of
the
machine
mounting
frame.
FIACIIINE
MOUNTING
FRAME
INSTALLATION
On
a
suitable
tablehoard,
place
machine
mounting
frame (21393
N)
in
the
machine
cut-out
with
the
hinge
logs
to ihe
rear
(Fig. 1).
Insert
the
countersunk
Mood
screw
through left
hinge
pad and
tighten
securely.
Assemble
bed
positioning
spring
(61474
A)
over
right
hinge pad;
insert
round
head
wood
screw
and
tighten
securely.
Assemble
the
retaining
plate
(21:193
11)
to
outside
front of
pan
section,
as
shovn,
and
snug
up
nuts
lightly.
Place
sewina
head
in
the
frame mnuniing,
:ind
after beint sure
there
is:ibout 1/16
inch
clearance
between the
cloth
plate edge and
the
frame sides,
nip
the
retain:ng
plate
smartly
upward
with
a hammer
to
insure
a good
grip
on
the
undersEa’
of
the
board
and
tighten
locking nuts
securely.
Tip
machine back
agatnst
rest
pin,
and
assemble
the knee
press
assembly
a
shown. All
end
play
of the
rross
shafi
should
be
taken
up
by
the cone
hearings,
but
must
not
hind.
-63476
B
TARL
E
POAFD
Fig.
1
2L393L.
-2J393R
66
—65-6
2166I N
6

INSTALLING
(Continued)
—
_
—.
..t.._.
.
—...
.
._.:.____a
.
..
-
•__
MACNINE
MOUN1’INC
FRAME
INSTALLATION
(Continued)
Before
the
machine
is
put
into
production,
the
bell
crank
(21665
1)
of
the
knee
lifter
rod
should
be
adjusted.
‘I’he
left
stop
screw
(22597
F)
should
be
set so
that
the maximum
lift of
the
presser
bar
and
its
parts
donot
interfere
with
moving
parts
within
the
head.
This may
he
done
by
setting
the
stop
screw
so
that
the
presser
bar
raises
approximately
5/16
inch.
IIOIIIIIN
WINDER
‘I’he bobbin
winder
should
be secured
to
the
table
top
so
that
its
pulley
will
he
located
directly
in
front
of
the sewing
machine
belt
and
will bear
against
the
belt
when
in
operation.
The
base
of
the
winder
has
two
elongated
attaching
holes,
which
allow
the
mechanism
to he
moved
closer
to
or
farther
away
from
belt
as
needed.
The
pulley
of
the
winder,
when
in
operation,
should
exert
only
enough
pressure
ar’pinst
the
belt
to
wind
the
bobbin.
Regulation
and
operation
of
the
bobbin
winder
is
described
under
‘Winding
the
Bobbin”,
under
OPERATOR’S
INSTRUCTIONS.
BE
LTS
These
machines
are
equipped
to
use
either
#1
“Vee”
or
round
belts.
0
t
•
___
7

LUBRICATION
CAUTION!
Oil
has
been
drained
from
the
main
reservoir
before
shipment
and
the
reservoir
must
be
filled before
starting
to
operate.
Lubricate
machine
thoroughly,
in
accordance
with
instructions
which
follow,
and
run
slowly
for
several
minutes
to
distribute
the
oil
to
the
various
parts.
Full
speed
operation
can
then
be
expected
without
damage.
RECOMMENDED
OIL
Usa
stainless
water—white
straight
mineral
oil
ofaSaybolt
viscosity
of
90
to
125
seconds
at 100
Fahrenheit
in
the
main
reservoir.
This
is
equivalent
to
Union
Special
specification
No. 175.
Fill
main
reservoir
at plug
screw
(B,
Fig.
2)
and
check
oil level
at
gauge
(C);
oil
is
at
maximum
level
when
needle
is
in
yellow
band
marked
“full”.
Oil
should
be
added
when
needle
is
in
yellow
band
marked
“low”.
It
is
recommended
that
a
new
machine,
or
one
that
has
been
out
of
service
for
an
extended
period,
be
lubricated
as
follows:
Remove the
end
cover
and
directly
oil the
bearings
of
the
needle
bar
link,
take-up
and its
lever
and
needle
bar,
Replace
end
cover
as no
further
hand
oiling
will
be
required.
CAUTION!
The
machine
is
provided
with
automatic
or
manual
head
mechanism
oil
control.
The
oil
control
dial
(D,
Fig.
2)
is
shown
inthe
automatic
oiling
position,
and
should
manual
8 iling
of
the
head
mechanism
be
desired,
remove
locking
screw
(G,
Fig.
2)
and
turn
dial
180
to
exposethe
manual
oiling
port.
Inthe
manual
oiling
position,
five
or
six
drops
of
oil should
be
introduced
into
the
oiling
port
twice
daily
-
preferably
at
starting
time
and
mid-day.
Oil
may
be
drained
from
main
reservoir
by
removing
plug
screw
(F,
Fig.
2).
OIL GAUGE
The
oil
gauge
is
set
at
the
factory
to
show
the
proper
oil level
in
the reservoir.
Should
an
adjustment
become
necessary,
the following
steps
should
be
followed:
1.
Place
the
machine
upright
on
a
level
table
or
bench.
2.
Remove
the
reservoir
plug
screw
(located
belowthe
handwheel
and
near
the
bottom
of
the
machine).
3.
Oil
should
be
added
or
removed
so
that the
oil level
is
approximately
1/8
inch
below
the
bottom
edge
of
the hole.
4.
Loosen
the
lock
nut
on
the
calibrating
screw,
and
turn
the
screw
left or
right
so
that
the
gauge
needle
rests
on
the
yellow
band
marked
“FULL”
on
gauge
(C,
Fig.
2).
5.
Tighten
lock
nut
and replace
plug screw.
Lubrication
of
the
mechanism
below
the
cloth
plate
A
is
automatically
accomplished
through
the
feed
driving
shaft
(D,
Fig.
3),
which
is
tubular.
Oil
is
introduced
into the
shaft
at
the
sprocket
end
by
means
of
an
oil
D
distributing
plate
(A,
Fig.
3)
which
is
secured
to
the
B
bottom
cover
(B)
by
means
of
two
screws
(C).
_
-
_____
____
Should
itbecome
necessaryto
remove
the
reservoir
____________
cover,
it
is
imperative
that
the
adjustment
of
the
oil
distributing
plate
(A)
be
checked
very
carefully.
This
can
be
done by
removing
the
large
plug
screw
at
the
right
end of
the
reservoir
and looking
through
the hole.
C
The
low
point
of
the
oil
distributing
plate
must
be
even
with
or
slightly
below
the
center
of
shaft
(D)
and
just
Fig.
3
touching
it.
8

SLL-IIUIVIING
lEAD
OIL
S11 3 [LON
(lass
63-I0()
nachilies
ale
ecuippccl
will
a
self—priming
head oil
siphon.
When
lie
nucliiie
is
sl:a
ted,
ui
splashes
on
1110
prinitig
Cup
felt,
tillers
tl1lOLpl
the
fe
[t
anc1
ti:ick.[es
Imv ii
the
vet
cal.
nIt
tube,
thus
piiniiiig
the
siphon.
Once
the
prime
is
established,
it
is
nainl;u
[ned,
1111055
the
felts
are
Ie
moved.
ThC
siphon
operates
twenty—four
hours
a
day,
1’V
niovi
i
j
I.
I.!
at accuin
utates
.Ln
tI
e
lead,
mien
when
the
machine
is not
i
L1Iil1ili,
61404
N
611)
Oil
____
(1’\o
61101
I)
61111
L
o
S 011
w
N
(
OJS 1 ph 011
666-2i’
italic
‘011
d
a
0
COLUMN
END
Q
4,
INSTALLING
AND
MAINTENANCE
OF
OIL
SIPHON
The
felt
in the
priming
cup
is designed
for
a
specific
purpose,
This
felt,
No.
666—237
is thin
and
relatively
dense
to
meter
the
flow
of
priming
oil
and
to prevent
the
entrance
of
air.
The
felt,
at the
intake
of
the
siphon,
keeps
the
siphon
clear
of
lint,
and
prevents
the
entrance
of
air
at
that
point.
A
newly
installed
siphon
starts
its
iiction
within
five
to
ten
minutes
after
the
machine
is
operating.
Ilowever,
it
may
be
forty
minutes
or
so
before
the
air
is removed
from
the
line
and
the
siphon
is in
full
operation,
X\’hen
a
customer
receives
a
new
machine,
it has
probably
been
turned
upside
down
in
shipping,
oil
has
accumulated
in
the
head,
and
the siphon
may
not be
primed.
It
will,
however,
automatically
reprirne
itself
when
run.
After
the
first
day
of
operation,
the
siphon
can
be
checked
by
inspecting
the
tygon tube
at
the
junction
visible
at
the
presser
foot
lifter
arm
to
be
sure
it is
full
of
oil.
The
siphon
may
also
bE
checked
by
‘emoving
the
head
cover
and
wetting
the
inlet felt
with
oil.
The
felt
should
dsibly
dry
out
as
the
oil
is
drawn
into
the
siphon.
If
the
siphon
felts
become
clogged
and
the
siphon
does
not
function
properLy,
change
the
felts
as follows:
To
change
the
inlet
felt,
remove
the
inlet
tube
with
the
tygon
tube
disconnected
only
lt
the
column
end.
Replace
the
felt
and
reassemble.
To
change
the
prime
cup
felt,
first
remove
the
access
plug’
screw
at
the
rear
of
the
column.
Remove
felt
with
a
tweezers.
Replace
with
a
new
felt
being
sure
the
feLt
is pushed
down
tightly
into the
prime
cup,
9

INSTRUCTIONS
FOR
OPERATORS
TI
I
READ
While
the
direction
of
the
twist
in the
bobbinthread
is
immaterial,
the
direction
of
the
hook
rotation
favors
the
use
of
a
left
twist
thread
in
the
needle,
To
determine
the
direction
of
twist,
grasp
a
short
length
of
thread
between
thumb
and
forefinger
of
each
hand,
Turn
the
thread
away
from
you
with
your
right
hand.
If
the
strands
unwind,
it
is
a
left
twist,
if
not,
it
is
a
right
twist,
REMOVING
THE BOBBIN
CASE
f
z:
Fig.
4
To
remove
the bobbin
case,
turn
handwheel
in
operating
direction
until
the
needle
reaches
its
highest
position,
Using
the
left
hand,
reach
under
the
table,
open
the
bobbin
case
latch
(A,
Fig,
4),
and
pull
the
bobbin
case
out
of
the
sewing
hook,
Opening
the
latch
retains
the
bobbin
in
the
case.
When
the
latch
is
closed,
the
bobbin is
released
and
can
readily
be
removed,
WINDING
THE
BOBBIN
Thread
the
bobbin
winder
by
leading
the
thread
from
the
supply
down
through
the
eyelet
(A,
Fig,
5),
down
between
the
tension
discs,
and
under
the
tension
post,
Press
an
empty
bobbin
on
the
winder shaft
(B)
up to
the
stop,
windthe
end
of
thread
around
the
bobbin
afew
turns
in
a
clockwise
direction,
and
press
down
wardly
on
hand
lever
(D)
until
pulley
is
moved
into
contact
with
machine
belt,
and
is locked
in
that
position,
When
the
machine is
operated,
the
bobbin
will
be
rotated
and
filled
until the
thread
engages
the
automatic
throw-out
member,
which
disengages
the
pulley,
The
extent
to
which
the
bobbin
is
filled
can
be
varied
by
regulating
the
screw
(C).
The
tension
post
bracket
is
mounted
on the
winder
base,
and
canbe
shiftedfromleftto
right
byloosening
screw
(E)
so
that
any
tendency
of
the
bobbin
to
wind
unevenly
may
be
readily
corrected.
The
purpose
of
the
bobbin
winder
is
to
assure
an
operator
of
a full
bobbin
at
all
times,
When
the
bobbin
in
the machine
is
replace
it
with
the
full
one, and
begin
to wind
the
empty
one
immediately,
can
be
rewound
while
the
machine
is sewing,
Fig,
6
THREADING
THE
BOBBIN
CASE
The
bobbin
case
should
beheld
between
the
thumb,
forefinger
and
second
finger
of
the
LEFT
hand
(A,
Fig.
6),
The
bobbin
itself
should
be
heldbetween
the
thumb
and
forefinger
of
the
right
hand
(B,
Fig.
6)
with
thread
coming
off
the bottom
of
the
bobbin,
NN
Fig,
5
used
up,
Bobbins
10

INST
RIJCTIONS
FOR OPERATORS
(Continued)
THREADING
THE BOBBIN
CASE
(Continued)
Place
the bobbin
in
the bobbin
case,
In
one
continuous
motion,
with
the thumb
and forefinger
of
the
right
hand,
draw
the bobbin
thread
through
the diagonal
slot in
bobbin
case
(A,
Fig.
7)
under
the tension
spring
(B)
and into
self
threading
eyelet
(C)
on case,
Note the
direction
of
the
rotation
of the
bobbin
as the
end of the
thread
is
pulled
when
looking
at
the
bobbin
case from
the back,
The
bobbin
should
rotate
counterclockwise,
REPLACING
THE BOBBIN
CASE
Have
the needle
bar at
its highest
position,
allow
about
two
/ ‘
and
one half
inches
of thread
to
hang
free, The
bobbin
case
B
latch
shouldbe
opened
withthe
left
hand, and
by
reaching
under
the
table
and through
the
opening
in the table,
it should
be
placed
4
C
partwayintothesewinghook,
Thelatchshouldthenbe released
and
bobbin
case
snapped
into
position,
INSERTING
THE NEEDLE
Fig, 7
Insertthe
needle intothe
needle
bar
as far
as
it
will
go
with
the spot
(sometimes
called scarf)
toward
the right,
A
facing
the handwheel,
Tighten
set screw
securely,
The
cross
hole
in
the
needle
bar,
about
1/4
inch
from
the
end
(A,
Fig,
8),
is to show
the operator
when the
needle
has
been
inserted
as far
up as
it will
go,
and to
provide
a
means
for cleaning
the
accumulatedlint from needle
hole so the
needle
will seat
properly,
THREADING
THE
NEEDLE
Threading
diagram
(Fig,
2)
shows the
places
where
the needle Fig,
8
thread
passes,
Please
note that
the needle
thread
passes
through
the
needle
eye
from
left to
right,
PREPARATION
FOR
SEWING
With
your
left hand,
hold
the end
of
the
needle
thread,
leaving it
slack, and
turn
the
handwheel
in
operating
direction untilthe
needle
moves
down
and
up
again
to its
highest position, Pull up the
needle
thread
and the
bobbin thread
will
come up
with
it through
the
needle
hole
in
the throat
plate,
Draw
both threads
under
the presser
foot,
TENSIONS
A
perfect stitch
is
one in which
the
needle thread
and
bobbin
//
B
thread
are locked
together
in
the
center
of
the
material
being
(
sewed.
A
stitch
of this
kind
is
secured
by
regulating
the
If
tensions
on
both threads.
)
BOBBIN THREAD TENSION
The tension
onthe
bobbin
case is
applied
by
means
of
a
set
Fig. 9
screw
(A,
Fig. 9)
which
regulates
tension
spring
(B). The
tension
onthe spring
is
correct
whenit is
just sufficientto
hold
the
bobbin
case
and bobbin
suspended
by
the bobbin
thread.
The thread
should not be
in the
eyelet
for this
adjustment
check.
11

INSTRUCTIONS
FOR OPERATORS
(Continued)
BOBBIN THREAD
TENSION
(Continued)
Remove
the
bobbin
case from
its holder
and turn set
screw
in spring
in
a
clockwise
direction
to
apply
more
tension
or
counterclockwise
to
release
tension.
When
the bobbinthreadtension
is
correct,
it
rarely
becomes
necessary
to
make
any
changes
as
varying
the
needle
thread
tension
will
usually
attain
a
good
stitch.
NEEDLE
THREAD
TENSION
The
needle
thread
tension
is
varied
by
turning
the
tension regulating
nut
(II,
Fig,
2).
Turning
the
nut
in a
clockwise
direction
increases
the
tension,
while
counterclockwise
decreases
it,
This
should
not
be done
when
the
presser
foot
is in
its
raised
position,
but
is
generally
done
while
the
machine
is sewing
on a
piece
of
scrap
material.
TO
CHANGE
THE
STITCH
LENGTH
Press
plunger
(J,
Fig.
2)
in
firmly.
While
holding
plunger
in,
turn
handwheel
in operating
direction
until
stitch
regulating
finger
is
felt to
drop
into
the
slot of
feed
eccentric,
Continuing
to
hold
the
plunger
in, turn
handwheel
in
operating
direction
to
increase
the
stitch
length
and
in
opposite
direction
to
decrease
the
stitch
length,
Stitch
lengths
are
indicated
by
graduations
on
the
indicator
dial
and
are
viewed
through
the
window
in
the belt
guard
(K,
Fig.
2).
PRESSURE
ON
MATERIAL
The
presser
spring
should
exert
only
enough
pressure
to
make the
work
feed
uniformly. To increase
the
pressure
on
the
presser
foot,
turn
presser
spring
regulator
(A,
Fig.
10)
in clockwise direction,
Turning the regulator
counterclockwise
decreases
the pressure,
Fig.
10
12

INSTRUCTIONS
FOR
MECHANICS
SETTING
THE
NEEDLE
BAR TO
HEIGHT
The
lower
needle
bar
bushing,
the
one to
which
the
needle
bar is
timed,
is
set
at
the factory.
The
distance from
the
bottom
of
bushing
(A, Fig.
11) to
the
throat
plate
seat
is
2
1/4
inches.
-
The
four
lines
engraved
on
the
needle
bar are
used
in
setting
Wi
(
needle
bar
to
height
and
are
referred
to as
TIMING
LINES.
The
two
1
upper
lines
are
used
with
the
extra
short
length
needle
Type
183
GXS
/4
or
183
GYS,
which
are
recommended
for
Style
63400
A.
The
two
lower
lines are
used
with
the
short
length
needle
Type
180
GXS
or
180
GYS,
which
are
recommended
for
Style
63400
B.
When
the
needle
bar
is
at
its
lowest
position,
the
upper
timing
line
(B,
Fig.
11)
(of
the pair selected)
dependent
upon
the
needle
used,
should
be
EVEN
with
the
lower
edge
of
the
lower
needle
bar
bushing
(A).
To
change
the
position
of
the
needle
bar,
turn
the
handwheel
until
the bar
is
at
its
lowest
position.
Then,
loosen
the
clamp
screw
(C)
and
move
the
bar
to
the
proper
timing
line.
Keeping the
needle
bar
link at
Fig. 11
its
lowest
position,
tighten
screw
securely.
The
illustration
(Fig.
11)
shows
the
proper
setting
of
the
needle
bar
on Style
63400
A, using
extra
short
length
needle,
Type
183
GXS
or
183 GYS.
The
setting
of
the
needle
bar
on
Style
63400
B, using
short
length
needle,
Type
180
GXS
or
180 GYS,
is
accomplished
in the
same
manner,
except
that the
lower
pair
of
timing
marks
on
the
bar
is used.
TIMING
THE
HOOK
Tip
the
machine
back
so
that it
rests
on
the
rest
pin
in
the
table
top.
Insert
a
new
needle.
Loosen
the
two
screws
and
swing
out
the
bobbin
case
positioning
finger (A,
Fig.
12).
Loosen
the
three
set
screws (B)
in
the
hook
and
hold
the
hook
and
bobbin
case
holder
in
such a
position
as
to
prevent
interference
with
the
needle.
Turn
the
handwheel
in
operating
direction
until
the needle
bar
is
at
its
lowest
position
and
continue
to
turn
the
handwheeluntil
the
needle
is
ascending
and
the lower timing
mark
(of
the pair selected)
(Fig.
11)
used
in
setting
the
needle
bar
is
even
with
the lower
edge
of
the
needle
bar
bushing
(A).
Turn
the
hook
on
the
shaft
until
the point
of
the
hook
is
even with
the
center
of
the
needle
and
as
close
to the
needle
as
possible
without
deflecting
it.
A
spacing
of
003 to
.
005
inch
between
the
needle
and
the
point
of
the
hook
is
satisfactory.
With
the
hook
in
this
position, tighten
the set
screw
opposite
the
hook
point
securely.
Then,
tighten
the
two
remaining
screws
securely
and
recheck
the
timing
of
the
hook
with
the
needle,
at
which
time,
the
top of
the eye
of
the
needle
should
be
about
1/64
inch
below
the
bottom
of
the
hook
point.
If
this
condition
does
not
exist,
recheck
the
setting
of
the
needle
bar
bushing
in
relation
to
the
throat
plate
seat
(Fig.
11).
Adjust
thebobbin
case
holderpositioning
fingerby
turning
the
bobbin
case
holder
until
the
finger
recess
is
at
the top.
Place
the projection
on
the
fingerinto
the
bobbin
case
holder
recess
and
tighten
the
finger
attaching
screws
securely,
allowing
1/32
inch
clearance
between
the
outside
edge
of
projection
and
the
inside
edge
of
bobbin
case
recess
(Fig.
12).
Fig. 12
13

INSTRUCTIONS
FOR
MECHANICS
(Continued)
NEEDLE
GUARD
INSTRUCTIONS
FOR NO,
29474
P
In
the
hook,
at the
right
side of
the needle
hole
in the
bobbin
case
holder
(B,
Fig,
13)
is found
a
needle
guarding
surface
(A,
Fig.
13).
The
purpose
of this guarding
surface
is
to prevent
the hook
point
(C)
from
coming
in contact
with
the needle
(D)
at
loop-taking
time,
should
the
needle be
deflected
towardthe
hook point,
The
needle
guard will
deflectthe
needle
slightly,
when
needle
is
at bottom
of
its vertical
travel,
if the
hook is
properly
timed,
(At
loop-taking
time,
there
should
be little
or
no
deflection
of needle
by
the needle
guard.)
For additional
needle
clearance, especially with
use
of
size , 048
and larger
needles,
removal
of
some
needle
0
guarding
surface
may
be
necessary,
c
Before
metal
removal
from
the guarding
surface,
all
related
settings
should
be
checked as
follows:
-
---rn- -
1, See
that
the
needle
bar
is set
to
correct
height,
B
I
2,
Check
for proper
hook
timing,
A
3.
Rotate
handwheel
in
operating
direction
by
hand,
Check
for excessive
needle
deflection
beyond
what is
cited
above
as a
desirable
condition,
Fig,
13
4,
If needle
deflection is
excessive,
follow
steps 1
and
2 below,
(1)
Remove
bobbin
case
holder from
hook,
(2)
Remove
excess metal
from needle guarding
surface,
This
may
be
done by
using
a 1/8
inch
strip
of fine
emery
cloth
(#320),
with
one end
secured
to the
bench
and
rubbing
the
guarding
surface
back
and
forth until
sufficient
metal
is removed.
When
metal
is being
removed
from
needle guarding
surface,
the bobbin
case
holder
should
be re-inserted
frequently
and tested
until proper
needle
guarding
is
obtained,
CAUTION!
Damage
to
hook
point may
result
if too
much
metal is
removed
from
needle guarding
surface,
The bobbin
case
holder
should
be
thoroughly
cleaned
before
re-assembly
into
hook base,
When altering
needle guarding
surface,
it is suggested
the hook
NOT BE
REMOVED
or
disturbed
from
its
timed
position.
Bobbin
case holder
only
maybe
removedby
removing
gib
screws
and gib
and
by
pulling
on
bobbin
case
stem as
the handwheel
is
rocked backwards
and
forwards
slightly.
HOOK
LUBRICATION
CAUTION!
Do
not run
the
machine
without
the bobbin
case
in
the
hook as
hook
damage
may result.
With the
bobbin
case in
the
hook,
run
the machine
for
a
full minute.
Place a
piece
of
white
paper
directly
underthe
hook
and continue
running
the
machine,
After
about
five seconds,
remove
the
paper and
a definite
and distinct
pattern
of
oil spots
should be
observed,
14

INSTRUCTIONS
FOR MECI-IANICS
(C
ontinued)
HOOK LUB
RICATION
(Continued)
Should more
ov
less
oil
be
required,
turn the oil
control adjust
ing shaft
(E,
Fig,
2),
located on
the
front c the machine
ust below the
cloth plate surface,
in
tim direction
of the
change required.
After a
change
in
the
hook
oil
flow,
the
machine should
be run about
one
iTliflute before
checking
for the
desired oil
flow.
FEED
DOG
HEIGHT
In regulating
the height of the
feed
clog, it
should
be at its highest
position
and the presser
foot
resting
directly
against it,
The
•feed dog holder
attaching
Fig,
14
screw
(A,
Fig,
14)
shoulcibe loosenec[
slightly, and
regulating
screw
(B)
should
be
turned either
clockwise,
to
raise
the feed dog, or
counterclockwise
to
lower it, Make
sure that the
bottom
of
the
shank of
the
feed
dog holder
rests against
the head of
the regulating screw,
A
suggested
initial
setting is
as follows:
Feed
dogs
having
22 or more
teeth per
inch
should
show
about
3/64 inch
above the throat
plate at
highest point
of
travel,
Those having
16 or less
teeth per
inch
should show the
depth of a full
tooth above
the
throat
plate,
The
feed dog
can
be tilted up
or
down
as required
by loosening
screws
(A
and
C),
L
o o S
e
n feed
dog
holding
screws(D)
to
space
the
feed
dog,
front
to
back
or
sideways
in the
throat plate,
PRESSER BAR
CONNECTION
The
presser
bar connection
(A,
Fig,
16)
should
be
set
so that
it is about
1/16 inch below
the presser
bar
guide
(B).
This
is accomplished
by tipping
the machine
back
against
the
rest pin,
loosening
the
lock nut
(A,
Fig,
15),
and
relocating
the stop
screw
(B)
on the
lifter
lever bell
crank
(C).
By
turning the stop
screw
to
the right
or
left,
___________
the
proper setting
of the presser
bar connection
is
accomplished.
Tighten
the
lock
nut
(A)
to lock
the stop
screw in
place,
Fig,
15
Fig. 16
15

INSTRUCTIONS
FOR
i\’IECHANICS
(Continued)
P
hESSE
Iii BAR
GUIDE
\\
heti
locating
the
presser
bar
guide
(B,
Fig.
16),
the
presser
foot
must
rest
directly
against the
throat
plate
with
the
feed
dog
in
its
lowest
position.
The
guide
is
set
properly
when
there
is
a
4
3/4 inch
space
between
the
thread
takeup
wire
and
the
top
of
the
throat
plate
(Fig.
16)
To
obtain
this
setting,
remove
the
pressure from
the
presser
spring
(F)
and
loosen
set
screw
(C).
Tap
on
presser
foot
to
insure
its
being
down
on
the
throat
plate.
Set
the guide
to
the
4
3/4
inch
dimension,
center
the
foot
by
turn
[rig
it so
that
tla
needle
enters
the
middle
of
its
slot
and
rutighten
screw
(C)
in
guide.
Now,
apply
pi.essure to
the
presser
foot
by
turning
the regulator
(A,
Fig.
10)
clockwise.
PRESSER
BAR
The
presser
bar
No,
6.3437
J
is designed
primarily
to
receive Lnion
Special
iresser
feet.
However,
should
feet
of
a different
manufacture
be
required,
the
pi.esser bar
is
adaptable.
To
adapt
the
machine
to receive
presser
feet
of other manufacture,
proceed
as
foLlow
s:
1.
Remove
presser
foot
and
presser
foot
screw
from
presser
bar.
2.
Insert
Presser
foot
screw
in
the
presser
bar
so it
screws
in from
right
to
left.
3.
Loosen
the
set
screw
inthe
presst
r
bar
guide
and
rotite press
r
bar
1
U0°
using
the
screw as a handle.
4,
Attach
presser
foot to
the
bar
and
align
the
needle
hole
or
slot
of
the
foot
with
the
needle.
5.
Check
the presser
bar
guide
for
correct
height
and
tighten set
screw
securely.
CAUTION! \Vhen
presser
feet
other
than
of
Union
Spec
ad
manulacture are
used,
the
presser
guide
height
must
he checked
and
reset
where
nec(ssary.
TENSION
ASSEM131Y
ADJUSTMENT
Test
check
spring
tension
(A,
Fig.
17).
There
should be
enough
tension
to
assure
a
good
returning
snap
when
spring
is
depressed
and
r(’leasedl.
Should
it
requlre
adjusting,
Loosen
set
screw
in
the
head
located
under
arm
and to
the
right
of
tension
assembly,
and
remove tens
ion
assembLy.
I
b
it
[al
Ly
—
loosen
tension
post
set screw (13)
n
tension
post
________
socket
(C).
Turn
the
tension
post
(D)
counterclock
wise
until
the check
sprill.3
moves
away
from
the
upper
stop
(E)
and
has
no
tensinn
on
it,
Turn
the
C
tension
post
(D)
in
a
clockwise
d1 rection
until
the
spring
again
touches
the
upper
Ftop (B). Then,
proceed
further
in the
same
direction
until
the
Fig
17
desired
tension
is
obtained.
When
correctly
set,
the
tension
post
set
screw
(B)
shouLd
he
drawn
up
snugly,
yet
not forcefully.
Further
adustrnent
of the
check
spring
tension can
he
made
by
inserting a
screwdriver
into
the
slotted
end
of
the
t( ‘nsion
post
(D)
and
turning
in
the
iequ
ed
direction.
Replace
tension
assembly with the
check
spring
about
3/H
inch
above
the
th
read
take—up
wire.
While
the
tens
ion
post
assembly
s
being
replaced,
the
presser toot
should
be
resting
on the
throat
plate.
16

INSTRUCTIONS FOR MECI-IANICS (Continued)
TENSION RE LEASE
The tension release should
be set
so that it
will not release when
Sewing over
seams or when the
presser
foot
is raised for
back
tacking. The adjustment
of the
tension release earn
(D,
Fig.
16)
and
the
in
and out
position
of the tension assembly
are required
for proper operation.
The
in
and out position of
the
tensionassembly
is correct
when the tension discs
are
in
line with the
check
spring eyelet
(A,
Fig,
18).
Set the stop screw
(B,
Fig.
18)
so that when
the flange of the tension assembly rests against
it, this
position is maintained,
Tighten the
tension
assembly set
screw,
The tension release cam
(D,
Fig,
16)
should now
be
positioned
by
loosening set
screw
(E,
Fig.
16)
and then
raising or lowering
the cam to
suit
the sewing
conditions,
the average release point being between 1/4 to 5/16 inch
of presser foot lift above the throat plate, Tighten tension
release
earn set screw
securely,
THREAD CONTROL
Fig, 18 Check the adjustment of tension
assembly
(A,
Fig,
l8A),
Check spring tension. There should
be
enough tension
to
insure a good returning snapwhen spring
(B,
Fig,
18A)
is depressed
and released. The check spring tension
is adjusted from about 1 to 1 1/4 ounces
when
measured
with a postal scale
(C,
Fig,
18A),
This is
measured
when
the check
spring
is
1/32
to
1/
16 inch from
its
stop,
The tension post set screw should be drawn
up snugly
but not forcefully tightened
(B,
Fig,
17).
The tension
release pin should
move
freely in the
tension
post
(D,
Fig,
17),
The check spring eyelet
(A,
Fig, 18),
located just below the tension discs, should be set for
correct height
as
follows:
With a thread
running
from the
tension
post to the
thread
wire
in a
straight
line,
the
check spring eyelet
should be set
1/16
to 1/8
inch
below the thread
line
(Fig,
18),
Be
surethe eyelet is set close tothe tension
discs so that the check
spring
will pass freely over it
without obstruction,
After making
this setting, proceed
to thread machine as
per
threading diagram (Fig,
2),
Sew
slowly on a piece of material
and
observe
the
action
of the
check spring, The
thread
from
the
check spring
to the
take-up wire should
be
taut
when the take-up is at the bottom of its
stroke, Slight
changes
in
needle
thread tens ion
maybe necessary at this point, huta reasonable
tension
should
be
used
to
maintain a uniform and
consistent stitch, The machines
are
sewn off
with 3 to 4
ounces needlethread tensionon 70-2
cord or
similar thread using a postal scale
(A,
Fig,
18B),
Depress
check spring when
checking the tension, The check spring will
feel
heavy to
you when compared to Class 61400
adjustment, but this is a required setting for the
disc
tension can
be
reduced,
-j
A
Fig, 18A
Fig.
18B
Class 63400, and as a result, the
17

INSTRUCTIONS
FOR MECHANICS
(Continued)
—
BOTTOM
COVER
Before removing
the bottom
cover, place
the
machine
on bench so that
the
plug
screw
is
accessible
from
underneath.
Remove this plug
screw and catch the
reservoir
oil
in some convenient
clean
container. Tip the machine
back,
loosen
and
remove the two cover
screws,
The cover should
be
tapped free with a
wooden block
or malict, Do
not pry cover loose
with any sharp
instrLunent
as the
gasket may become
damaged.
CAUTION! When
the bottom
cover is removed,
care should
be
taken not
to
mar
or
scratch
the
gasket
seat area of the
machine
bottom,
Before
replacing the
cover,
the machine gasket
seat should
be wiped clean and free
of all lint
and dirt. The cover
gasket
should
also
be inspected
for damage and cleaned
of dirt.
Two additional
gaskets
are used to
seal
the
bolts
and must
be cleaned
before assembly.
Carefully set
the cover in
place
and
tighten
the
two
bolts securely.
To replace
a
damaged cover
gasket,
proceed as
follows:
1. Clean cover gasket
recess
of
any
foreign
matter.
2.
The gasket in cross
section is
triangular in shape
with a groove in the
top or widest
part.
With
the cover
resting as it
does in
the machine,
oil
distributing
plate
to your right, begin
inserting
the gasket
in the middle of
the
back
recess, The grooved
wide
edge
of the gasket
should
be
up
and the long
sloped edge
inward. Continue
pressing
the
gasket
into the
cover recess until
gasket is in place.
The bolt sealing gaskets
may have
a tendency
to
fall out
when
installing the cover,
but may
be
temporarily
cemented in place
by
applying
grease
to their recesses.
HOOK SHAFT
The hook shaft
(A,
Fig.
19)
is
held in position
by the pinion
(B)
and collar
(C)
thrusting against
hard
steel
washers
(D)between
the long left
hand bushing
(E)
and
the short right
hand bushing (F).
Should
the hook shaft setting
be
disturbed,
the left and right
position can
be
determined
by
measuring
from the hook
end of
the hook
shaft to the point of
a new
needle
(0)
and reading
35/64
inch
on a
scale.
To reposition
the hook shaft,
loosen
the set
screws of the
pinion
and
collar and establish
the
35/64
inch
dimension. Move
the pinion
and thrust
washer
against
the
left
bushing, and
after
making
certain
one
of
the set screws
is
on the
shaft FLAT,
tighten both screws
securely, Liberally
coat the
collar
and ils washer
with oil and
press
the
collar away
from the
pinion
so
as to
remove
all end
play
and tighten
both set screws
securely.
Hook
oiling is accomplished
by a
high speed rotary
pump on
the end of the hook
shaft. The
quantity of oil
supplied to the hook is
regulated by the longer
or
shorter
path the oil is required
to
travel through
the
metering felt of metering
cup
(G,
Fig.
20).
(Increase
or
decrease
of oil supply
is
controlled
by
a dial
(F,
Fig.
20)
with
an arrow marked
“INCREASE”,
found below the cloth
plate). The hook
oil feed
roller
(A,
Fig.
20)
which rests
against the
metering
cup
felt
serves not
only
to
feed
oil to the
unit
from
the oil
reservoir, but filters
the oil as
well.
‘REMOVAL
OF
OILING DEVICE
The
following
steps
are necessary
to remove hook
oiling
device:
1. Remove hook oil
feed roller
(A,
Fig. 20).
2.
Remove hook oil control
finger
(B).
3. Apply
finger pressure
to
hook oil control shaft
(D) to prevent loss
of pump disc
pivot
pin (E);
using
Allen
wrench,
loosen
set screw
(C).
Move
assembly
slowly to right,
being
careful
not
to
drop
pivot pin
located
in the
end of the
hook oil control shaft.
When
pivot
pin is
clear
of
pump
disc
(F),
disc
is
free
to
fall.
4.
Remove metering
cup
(0)
along
with oil supply felt
(K)
and air seal felt
(J).
5. Remove cog
(H)
from hook oil
control
shaft.
Fig. 19
18

INST
RIJCTIO
NS
FOR
MEC1
IAMCS
(C
ontinued)
RE-ASSEMBLV
OI
011
JNG
DEVICE
Before
re—assembly,
the
end
of the
hook
shaft,
its
spiral
groove
and
the
pump
disc
should
be
thoroughly
cleaned,
Remove
any
end play
Found
in
hook
shaft
and
determine
that
the 35/
64
inch
dimension
has
been
maintained
(Fig.
10)
T
c
A
r
A
Fig.
20
The
following
steps
are
necessary
to re-assemble
the
hook
oiling device:
1.
Remove
and separate
the
air seal
felt (J, Fig,
20)
from
oil
supply
felt
(K),
2.
Make
sure
small
end
of
air seal
spring
(R)
is located
on boss
of
metering
cup
behind
felt attached
to cup.
Position
metering
cup(G)
and
air seal
spring
on
hook
shaft
(S)
with
open
end
toward
handwheel
end
of
machine
(Fig.
20).
NOTE:
The
hook
shaft
should
pass
through
hole of
felt
attached
to metering
cup,
3.
Position
oil supply
felt
(K,
Fig.
21)
on
hook
shaft
making
certain
the
felt!s
projection
extends
into
dovetail
of
metering
cup.
4.
Position
air
seal
felt
(J) on
hook
shaft.
5.
Insert
pump
disc
(F)
ino assembly
tool
No.
21227
BY,
with
stop
pin
on
the
spring
side
of
tool,
180
from
handle.
Insert
disc
approximately
half
way
into
spring
and
center
in
tool
(Fig.
22).
19

INSTRUCTIONS
FOR
MECHANICS
(Continued)
RE-ASSEMBLY
OF
OILING DEVICE
(Continued)
6.
Insert
hook
oil
control
shaft
(D)
and
its bushing
(L)
part
way
into
its boss
which
is
located
directly
behind the
hook
shaft,
being
careful
NOT
TO
DROP
the pump
disc
pivot
pin
(E).
7.
A
clearance
cut
on
the
edge
of
the
____________________________________
metering
cup,
located
between
the
dovetail
and
the
long
horizontal
slot,
has
been
provided
for
the pump
disc
tool
and
should
be
facing
you(Fig.
22).
8,
With
the
fork
of the
tool
in
line
with
the
metering
cup
clearance
cut
and
centered
about
the
hook
shaft
end,
press
the
felts
to the
left
with
the
tool
untilthe
pump
disc
is
in contact
with
the
end
of
the
hook
shaft.
Fig.
21
9.
Press
hook
oil
control
shaft
bushing
(L)
to
left
until
control
shaft
(D)
is
approximately
1/16
inch
away
from
pump
disc
(F).
Make
sure
the
control
shaft
pivot pin(E)
seats
inthe
depression
at
the
center
of
the
pump
disc.
Tighten
set
screw
(C,
Fig.
22)
and
withdraw
assembly
tool.
Be
sure
air
seal
felt
(J)
has
seated
against
the
pump
disc.
10.
Turn
hook
oil
control
shaft
(D,
Fig.
23)
until
screw
hol 8
(M)
is
accessible.
Manually
rotate
pump
disc
(F)
so
its
stop
pin
(N)
is
90
above
screw
hole.
11.
Rotate
metering
cup
so
the
short
slot
(T)
is
180°
from
the
stop pin
(N).
Now,
install
the hook
oil
control
finger
(B)
by first
hanging
the
hooked
portion
of
the
finger over
the
stop
pin
(N)
and
lowering
to
insert
the
projection
at
bottom
left
into
the
short
slot
of
the
metering
cup.
Tighten
finger(B)
inpiacebymeans
of
screwandwasher,
making
sure
the
hook
oil
control
finger
does
not
C
bind
or
distort
the
metering
cup.
12.
Assemble
the
hook
oil
feed
roller
(A,
Fig,
24),
and
rotate
the
metering
cup
so
that
the
roller
contacts
the
metering
cup
felt
at
point
(U,
Fig.
24).
Turn
the
oil
control
adjusting shaft
(P,
Fig.
24)
in
the
increase
direction
until
projection
stops
against
the
stop
pin
(this
is
maximum
oil
supply)
and
install
the
cog
(Ii,
Fig.
24)
on
______________________________
the
hook
oil
control
shaft.
After
meshing
the
teeth,
tighten
the
set
screw
securely.
Fig.
22
13.
Check
for
proper
contact
of
the
hook
oil
feed
roller
and the
metering
cup
by
turning
the
oil
control
adjusting
shaft through
its
complete
travel
and
observe
the
feed
roller
turning
as
the
metering
cup
turns.
With
the oil
control
adjusting
shaft
set
at
maximum,
the
feed
roller
point
of
contact
withthe
metering
cup
felt
should
be
at
the
mid-point
of
the
slot that
permits
the
metering
cup
felt
to
enter
the
metering
cup.
NOTE:
The
feed
roller
should
be
in
contact
with
the
metering
cup
felt
through
its
complete
travel,
20