Singer 211G166 - Presser Feet and Feed Adjustments; Setting Presser Bar Height; Adjusting Alternating Presser Feet Lift; Adjusting Feed Driving Eccentric

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ADJUSTMENT
OF
THE
PRESSER
BAR
HEIGHT (Figures
44
and
45)
The presser
bar
height
can
be
adjusted
after
loosening
pinch
screw
1
in
the
driving
crank,
pinch
screw
2 in
the
lifting
element
and
pinch
screw
3 in
the
presser
bar
guide.
With
both
presser
feet
on
the
throat
plate
(as
the
needle
enters
the
throat
plate)
tighten
pinch
screw 2
so
that
there
is a
clearance
between
the
lifting
element
and
the
casting.
Tighten
pinch
screw 3 so
that
a
clearance
remains
between
the
guide
end
the
casting.
Normally
the
presser
feet
ere
adjusted
so
that
the
I
ift
of
the
front presser is more
than
that
of
the
rear
presser.
To
do this
turn
crank
4
and
retighten
pinch
screw
1.
ADJUSTMENT
OF
THE
LIFTING ECCENTRIC
AND
THE
LIFT
OF
THE
ALTERNATING
PRESSER
FEET
(Figure 45)
The
lift
of
the
alternating
presser
feet
is
governed
by
the
thickness
of
the
material
sewn,
and
should
be
no
higher
than
necessary.
Normally,
the
lift is
the
same for
both
presser
feet
and
is
infinitely
variable
within
the
machine's
capability
by
means of
the
adjustable
lifting
eccentric.
To
adjust
the
lift
of
the
presser
feet
use a
screw
driver
to
hold
the
lifting
eccentric
adjusting
disc
5 from
turning.
To
increase
the
lift,
turn
the
machine
pulley
towards
the
operator;
to
decrease,
turn
the
machine
pulley
away
from
the
operator.
For
special
requirements,
the
amount
of
lift
can
be
increased
by moving
the
screw
stud 6
to
the
threaded
hole
7.
To
time
the
lift
of
the
alternating
presser
feet,
loosen
the
set
screws 8 in
the
lifting
eccentric
end
adjust
the
eccentric
on
the
arm
shaft.
For
normo-1
work,
the
lifting
eccen-
tric
is
regulated
with
the
presser
feet
ct
the
same
height,
so
that
the
point
of
the
needle
enters
the
throat
plate
when
the
feed
dog
touches
the
movable
presser foot
while
both
are
even
with
the
upper
edge
of
the
throat
plate.
Securely
tighten
the
set
screws
8.
ADJUSTMENT
OF
THE
FEED
DRIVING ECCENTRIC (Figures
46
and
47)
The
stitch
length
of
the
machine
can
be
adjusted
by
means
of
the
feed
driving
eccentric
as
explained
under
"ADJUSTMENT
OF
STITCH
LENGTH".
The
feed
driving
eccentric
is
mounted
on
the
bed
shaft
as
illustrated
in Figure
46
for
the
211 G
165/265
MACHINES
and
in Figure 47 for
the
211 G
166/266
fv\ACHINES.
The
feed
driving
eccentric
9
is
held
in a
guide
of
the
feed
driving
flange
10
and
adjus-
ted
by means
ct
the
adjustin-g screws
11
which
are
secured
by lock screws to
prevent
shifting.
To
adjust,
loosen
the
two lock screws
and
turn in
the
two
adjusting
screws
11
until
al
I
play
is
eliminated
and
the
eccentric
fits
quite
snugly
in
the
guide
of
the
feed
driving
tlange
10.
The
linear
movement
of
the
eccentric
is
accomplished
by
turning
the
adjusting
disc
12. A spring
located
between
the
adjusting
disc
and
a
collar
prevents
the
disc
from moving
out
of
position
when
the
machine
is in
operation.
The timing of
the
eccentric
in
relation
to
the
needle
movement is
achieved
by
the
feed
driving
eccentric
positioning
screw
in a
splined
groove
of
the
bed.
The
positioning
screw
is
the
first
screw
to
appear
when
turning
the
machine
pulley
in a normal
direction
of
rotation.