Singer 281-30 - CHECK SPRING AND FEED DOG ADJUSTMENTS; Setting Check Spring Height; Setting Check Spring Tension; Centralizing Feed Dog Sidewise

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
SETTING
THE
CHECK SPRING
HEIGHT
Thread
the
machine.
Turn
machine
pulley
over
slowly
toward
operator,
observing
check
spring
shown
in
Fig.
55.
When
toke-up
lever
begins
to
rise,
check
spring
should
make
a
slight
dip
and
return
to
its
higher
posi•
tion.
As
take-up
lever
approaches
top
of
its
stroke,
set-
ting
the
stitch,
check
spring
should
be
drawn
all
the
way
down.
As
take-up
lever
descends,
check
spring
shou
Id
return
to
rest.
To
increase
or
decrease
height
of
check
spring
(which
respectively
increases
or
decreases
its
move-
ment),
loosen
stud
set
screw
shown
in
Fig.
55.
Turn
stud,along
with
entire
check
spring
assembly,
to
set
check
spring
height
as
required.
Securely
tighten
set
screw.
NOTE:
Height
setting
should
be
checked
each
time
a
different
presser
foot
is
used
with
machine.
Fig.
55.
Check
Spring
Tension
on
check
spring
should
be
sufficient
to
insure
action
at
top
speed
but
light
enough
to
allow
check
spring
to
be
drawn
al I
the
way
down.
To
adjust,
first
make
certain
that
stud
set
screw
shown
in
Fig.
55
is
securely
tightened.
Then,
using
a
screwdriver
in
slot
of
stud,
turn
stud
alone
toward
left
to
decrease
tension,or
toward
right
to
increase
tension.
---··-.·--.
..
··-
....
·-·
-.
·-·
····•
---~-
-·---.····
-,
.
CENTRALIZING
THE
FEED
DOG
~
•~
_
_,_,.
~•-•
•
--
---
_,,.,_,_
.a.
'"~
-•
••
-~-
•
-'•
•-~----
~--·,.u·.a.~---•.,·
--•
• • • - •
Feed
dog
should
never
contact
edges
of
throat
plate
but
should
move
midway
between
sides
of
throat
plate
slots
and
maintain
its
movement
equidistant
from
front
and
r_eor
edges
of
throat
plate
slots.
Sidewise.Setting
To
move
feed
dog
toward
left
or
right,
loosen
the
two
clomp
screws
on
feed
bar
carrier
and
the
clomp
screw
on
feed
bar
crank,
shown
in
Fig.
56.
Move
feed
bar
os
required
to
position
feed
dog
mid-
way
between
sides
of
throat
plate
slots.
Make
certain
that
feed
dog
height
is
correct
os
in-
structed
on
page
22.
t:~~
FEED
BAR
CARRIER
Securely
tighten
oil
three
clamp
screws.
ff
TWO
CLAMP
SCREWS
r
.,
Fig.
56.
Centralizing
the
Feed
Dog
~~
.;.~.._.;.~e-.:...._,~
____
;:
...
~
~··-·~~_.___;;__
..
~
..
,....-.~,.;;~_..,.__¼~_..-,,.._...
,,__.,
-~·J,_,.._:
.........
----....."t.:.
21