Singer 246-3 - To Set the Right Looper in Relation to the Needle

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16
TO
SET
THE
RIGHT LOOPER
IN
RELATION
TO
THE
NEEDLE
(Using
Gauge
#
164459
for
Machine
246-3
and
Gauge
#
164460
for
Machine
246-5)
See
Figs. 22
and
23
Fig. 22.
Setting
the
Right
looper
To
properly
adiust
the
right
looper
setting,
swing
the presser
foot
out
to the
left,
remove
the
chip
guard
W,
Fig.
24,
page
18,
open
the
front
cover
plate
P,
Fig.
25,
page
19,
ond
remove
the
looper
thread
plate
03,
Fig.
25
and
the
throat
plate.
Adiust the
right
looper
in
the some order·
given
in the
following
ir1-
structions.
l.
When
the
right
looper
carrier
is
at
its
extreme
left
position,
the
dis-
tance
between
the
bracket
Q3
and
the
guide
bar
W3
must
not
be
greater
than
the thickness
E3
on the
end
of
the
gauge,
J5,
Fig.
22,
marked
"LOW."
However,
this
clearance
must
be
at
least
equal
to
the
thickness
Y
4
on the
end
of
the
gauge
marked
"HIGH."
To
adiust
the
distance
between
the
bracket
and
guide
bar,
loosen the
clamping
screw
M3
and
the
adiusting
screws
N3
and
P3.
To
increase
this
distance,
tighten
the
lower
odiusting
screw
P3
until
the
proper
distance
is
obtained.
To
decrease
this distance,
tighten
the
upper
adiusting
screw
N3.
When
the
correct
setting
is
obtained,
securely
tighten
the
clamping
screw
M3.
2. Loosen
the
two
set
screws
G3
and
move the
bracket
Q3
right
and
left
to deterrni11e its
extreme
right
and
left
positions
on
the
costing. Locote
the
bracket
Q3
at
the
midpoint
of
the
two
extremes
ond
tighten
the
two
set screws
G3.
17
3. Insert
the
looper
D3
in
the
looper
carrier
S3
ond
ploce
the
gouge
on
the
throot
plc1te seot,
CIS
shown
ot
J2, Fig. 22.
When
the
right
looper
D3
is
ot
its
extreme
left
position,
it
should
iust
touch
the
undersurfoce
Q2
on the
"LOW"
end
of
the
gouge.
To set
the
right
looper
at
the
correct
height,
loosen
the
set
screw
F3
on the
looper
collar
K3
and
loosen
the
nut on the
locking
screw
stud
H3
on
the
looper
carrier
S3,
moki11g sure
thut
the slot in
the
lockiriu
screw
stud
H3
is
in
line
with
the
looper
corr
ier·,
set the
right
looper
D3
up
or
down
in
looper
carrier,
as
required,
cmd
tighten
the
11ut
on
the
stud
H3
in
looper
carrier.
Then press
looper
col/or
K3
firmly
down
ogoinst
the
looper
carrier
and
securely
tighten
the set screw
F3.
4.
When
the
right
looper
posses the
left
l0opcr,
it shoulcJ poss
behind
the
left
looper
head
and
in
front
of
the
needle.
Place
the
"HIGH"
end
of
the
gauge,
shown
ot
J6
in the insert in
Fig. 22,
09ainst
the
left
sicle
of
tlw
needle.
furn
the
machine
pulley
until
the
right
looper
D3
is
ot
its
extreme
left
position.
At
this
point,
the
tip
of
the
right
looper
D3
should
just
touch
the
surface
C5
of
the
gauge.
K3
G3
S3
D3
H
Fig.
23.
Adjustments of the Right Looper
5. The
right
looper,
when
passing
behind
the
left
looper,
should brush
lightly
on
the front
of the needle.
To
adjust
this
position
of
the
right
looper
D3,
loosen
the
nut
on
the
stud
H3
crnd
move
the
right
looper
D3
in
the
right
looper
currier
S3,
us
required,
then
securely
tighten
the
nut
on
the stud
H3.
Recheck
ond
odjust
the
height
and
the
r 1ght
and
left
position
of
the
right
looper,
as
described
above.
When
all
the
settings
of
the
r·ight
looper
have
been
proper·ly
adjusted,
check eac~
setting
again
and
make
sure
all
set screws
and
nuts
are
securely
tighteried.
Then
replace
looper
threod
plate
03,
Fig.
25,
and
chip
qumd
W.