Singer 281-30 - FEED ROLLER AND FEED SYNCHRONIZATION; Setting Upper Feed Roller Height (Machine 281-20); Timing the Top Feed Eccentric

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
• I
r
~
SETTING FEED ROLLER AT CORRECT HEIGHT
L.-
...
_
(MACHINE
~l--20)
Zo/--30
r .
(See
temporary
parts
list.)
When
presser
foot
rests
firmly
upon
the
throat
plate,
the
upper
feed
roller
should
clear
the
lower
feed
roller
.003"
to
.005"
(equal
to
about
the
thickness
of
one
sheet
of
newspaper).
The
upper
feed
roller
bracket,
149290,
is
held
up
by
a
lip
on
the
upper
feed
roll
bracket
guide,
149274.
To
adjust
height,
loosen
two
(2)
screws,
140306,
lift
upper
feed
roller
bracket,
149290,
with
lip
of
feed
roller
guide,
149274,
until
piece
of
paper
slides
between
roller.
Securely
tighten
two
(2)
screws,
140306.
Check
clearance
by
rotating
rollers;
readjust
if
necessary.
fTb~
ti;ing
screw
for
the
281-30
on
eccentric
body.
Top-feed
mu
st
be
synchronized
with
bottom-feed
so
thct
both
move
from
front
to
recr
simultaneously,
feeding
the
materiel
smoothly
end
firmly.
BOTTOM.FEED:
Before
machine
leaves
factory,
feed-
I
ifting
·eccentric·
end•
beve
1-
gecr
end
feed
-
eccentric
ere
timed
for
overage
sew_ing
conditions;
having
timing
screw
in
ecch
eccentric
enter
groove
provided
for it in
crm
-shcft.
I
TOP-FEED
(See
Fig.
67):
To
synchronize
top-feed
with
bottom
feed
motion,
remove
crm
top
cover,
cs
shown
in
Fig.
67,
end
loosen
the
TIMING
SCREW
end
the
other
two
screws
in
the
top
feed
eccentric.
Reset
eccentric
by
rotating
it
slightly
TOWARD
operator
to
stcrt
top-feed
movement
SOONER,
or
AWAY
FROM
operator
to
stcrt
top-feed
movement
LATER.
Tighten
the
three
screws
in
the
eccentric.
Replccecrm
top
cover,
fastening
it
with
four
screws.
is
t-he
screw
closest
to-
the
flat
-
r--=
--,,;<~-;,,,·-~"~~_---~~"""--
.~.
·--,·:~--o:--:-,Tfl.-
t
SET
SCREW
CONNECTING
ROD
t ·
AT
LOWEST
POINT
~
,
__
=_
•.
~.
.
t
.··:·~
Fig.
67.
fiming
the
Top-Feed
Eccentric·
·
b=.;-""-- .,.~-·--
--·-·-.
·---·-
..
25