Starting Lever Arm Stop - Singer 270 Service Manual

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-
SCREW
LEVER
F
ig.
14. Adjusting
the Arm Stop
1/32
INCH
"V" BELT
1/32 INCH
:!
.. ..
-:r----
"
"
. .
"
fig.
15.
Setting
the
Engaging Arm
SCREW
1.0
STARTING LEVER ARM STOP
CHECK:
Starting
lever arm stop,
F ig.
14
1
should
li
mit
downward movemen
t
of
starting
lever
so
that bel
l
crank
has
1/
32
inch
clearance post
11
run" no
tch
when
st artin
g
lever
i
s
depressed.
SETTING:
Remove ''V"
belt
and
turn
stop
screw
to
limit
downward
1novement
of starting
l
e\'er
arm
as required.
Rcplact "V"
belt
and check adjustment.
ENGAGING
ARM
CHECK:
Engaging
arm should
be
ad
justed so
the "Y"
belt drops approximately
1/32
inch
when machine
moves from "run"
position
to
u
stop"
position
(See
Fig.
15)
.
SETTING:
Loosen
pinch
screw,
Fig. 15,
and
position
en-
gaging
otm
closer
to
or
farther from
star
t ing cop as
shown.
Tighten
pinch
screw
securely
and check
a djust-
mont.
NOTE:
Check
TENSION
an
"V" BELT.
Excessive
tightness will
not improve
performance
of mach ine
but
MAY CAUSE DAMAGE
or
excessive
weor
to
mach
ine port
s.
T
ens
ion
on
"V"
belt moy
be vari
ed
by
rei s
ing
or
lowering
motor, but
adjustmen
t
s hou
ld
be modo
in
connecti
on with
engagi
ng
arm
ad
justmen
t descri
bed
above.

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