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Singer 211U157 - Page 5

Singer 211U157
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From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
Fig.
4
Fig.
5
~-
' '
~
'
~®·.u·
',
i
,I
/
r
''
"'''
CONTROL
VALVE
SET
SCREW
Fig. 4
shovvs
the
areas
of
the
bed surface
to
where
oil
should be applied.
Fig. 5 shows
the
areas
of
bottom
of
the
bed
to
where oi I
should be applied.
HOOK
LUBRICATION
The
bobbin
case
raceway
is
lubricated
by
011 pumped
from
the
hook
saddle reservoir
while
the machine
is
operat-
ing. The
amount
of
oil
received
by
hook
receway
is
very
important.
To
check this, first remove
bobbin
case.
Then
with
the machine
running,
hold a small piece
of
white
paper
near the
hook
for
about
10 seconds. A
distinct
spray
of
oil
should
be
visible on the paper.
If
there
is
no trace
of
oil
or
an
excess
of
oil on the paper,
proceed
with
the
following
steps.
1.
Tip
machine and loosen
control
valve
set
screw shewn
- 4 -

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