Singer 246-3 - Page 17

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
6
To
properly
adjust
the r isiht
looµer
set
lino,
swing
the
presser
foot
out
to
the
left,
remove
the
chip
rJuard,
open
the
front
cover
plote,
ond
remove
the
looper
thread
plate
and
the
throat
plate.
Adjust
the
right
looper
,n
the
sa111e
order
given
in
the
following
instructions.
l.
When
the
rioht
k!oper
corrier
is
at
its
extreme
left
position,
the
distar1ce
between
the brc,ck,;t
Q3
and
the
guide
bar
W3
should
be
at
leust
equal
to
the thickness
E3
c;rI
the
"LOW"
side
of
the
qauge
shown
at
J5,
Fig.
6.
However,
this
cl"urunce
must
be
not
greater
than the thickness
Y 4
on
the
"HIGH"
end
of
thr; sior;qe.
To
odjust the
distance
he
tween
the
bracket
and
guide
bar,
loosen
the
clamping
screw
M3
and
tl1e
adjusting
screws
N3
and
P3.
1
o
iricrease
this
distance,
tighten
the
lower
ud1usting
screw
P3
until the
proper
distance
is
obtained.
To
decrease
this
distance,
tighten
the
upper
adjusting
screw
N3.
Wher1 the
correct
setting
is
obtair1ed,
securely
tighten
the
cla111pin~J
screw
M3.
2.
Loosen
the
two
set
screws
G3
and
move
the
bracket
Q3
right
and
left
to
determine
its
extreme
right
and
left
positions
on
the
costing.
Locate
the brcrcket
Q3
crt
the
midpoint
of
the
two
extremes
and
tighten
the
two
set
screws
G3.
3.
Insert the
looper·
D3
in
the;
looper
carrier
S3
and
pluce
the
~JOU~Je
on
the
throat
plcrte seut, m
shown
ot
J2,
Fig.
6.
When
the
right
looper
D3
is
ot
its
extreme
left
position,
it
should
just
touch
the
undersurfoce
Q2
on
the
"LOW"
end
of
the
SJClll(J8.
To
set the
right
looper
Cit
the
correct
height,
loosen
the set
screw
F3
on
the
looper
collar
K3
cmd
lomen
the nut
on
the
locking
screw
stud
H3
on
the
looper
carrier
S3.
Moking
sure
thot
the
slot
in the
locking
screw
stud
H3
is
in
line
with
the 11,nper
currier,
set
theright
looper
D3
up
or
down
in
looper
carrier,
crs
req1i'1red,
and
tighten
the nut
on
the stud
H3
in
looper
corrier.
]hen
press
locjper
corner
K3
firmly
down
ugainst
the
looper
currie,r
ond
secur1cly
tighle-,11
the
S•Jt
screw
F3.
4.
When
the
ri~Jht
k,c,per
posses the
left
looper,
it
should
poss
behind
the
left
looper
heod
ond
ir1
fmnt
of
the
needle.
Place the
"HIGH"
end
of
tlw
gouge,
as
shown
ot
J6,
in the irrsert
in
Fig.
6,
oguinst
the
left
side
of
the
needle.
Turn the 111ocl,inl,
pulley
until
the
right
looper
D3
is
at
its
extreme
left
position
At
this
poirit,
tire
tip
of
the
right
looper
D3
should
just
touch
the surfc,ce
C5
of
the
gauue.
K3
G3
S3
03
F.3
Fig.
7.
Adjustments
of
the
Right
Looper
7
5.
1 he
right
looper,
when
passing
behind
the
left
looper,
should
brush
lightly
on
the
front
of
the
needle.
To
adiust
this
position
of
the
right
looper
D3,
loosen
the
nut
on
the
stud
H3
and
move
the
right
looper
D3
in
the
right
looper
carrier
S3,
m
required,
then
securely
tighten
the
nut
on
the
stud
H3.
Recheck
and
adjust
the
height
and
the
right
and
left
position
of
the
right
looper,
as
described
above.
When
all
the
settings
of
the
right
looper
have
been
properly
adjusted,
check
each
setting
again
and
make
sure
all
set
screws
and
nuts
ore
securely
tightened.
Then
reploce
looper
thread
plate
and
chip
guard.