r\
BELT
Use Machine Driving Belt
(endless)
2T\19I,
furnished
with
machine.
Overtightening of belt
may
cause binding of
machine, due to the extended length of arm shaft
beyond
casting at pulley end. Adjust height of
driving
motor
to tighten belt only sufficiently
to obtain recommended machine driving speed.
DO
NOT
USE
A
LEATHER
BELT.
A
leather
belt can
become
too tight, damaging
arm
shaft;
or too loose, causing non-uniform rotation.
Metal
clipon leather belt
may
set up a vibration
that
interferes
with
belt
shifter.
PRIME
PRIME
Fig. 2. Oiling Requirements of
Reservoir
and
Left
Side
of
Machine
ONE
DROP
OF
OIL
DAILY
PRIME
PRIME
SATURATE
DAILY
PRIME
PRIME
FILL
OIL
RESERVOIR
HERE
HIGH
MARK
OIL
GAUGE
LOW
MARK
PRIME
Fig. 3. Oiling Requirements of
Top and Right Side of Mochine
SPEED
Maximum
speed of 3000
stitches
per minute
is recommended for all machines of
this
Class,
except
Machine
271K2
with
a top speed of 2700
stitches
per minute.
It
is
advisable
to run a
new
machine
at
a
speed 500
stitches
per minute LESS than max
imum
for the first 100 hours of operation.
The
maximum
efficient speed
for
any in
dividual machine is determined
by
the material
being sewn, the thread in use and the particular
style of buttonhole being made.
ROTATION
OF
MACHINE
PULLEYS
When
the
machine
is operating, the machine
pulleys turn over to the left (as the operator
faces
the machine).
LUBRICATION
UseSINCER'OIL,
"TYPE
A" or "TYPE
C".
Use
"TYPE
C"
OIL
when on
oil
is
de
sired which will produce
minimum
stain on
fabrics.
Do
not use additives in sewing machine oil,
as
they
may
cause a reduction in
normal
oil
flow that can result in damage to machine.
Before starting machine, the oil reservoir
beneath the sewing
hook
must be filled to the
high
mark
on
oil gauge,
through
oil filler hole
in
machine
bed,
as instructed in Fig. 2.
NEVER
ALLOW OIL
LEVEL
TO
FALL
BELOW LOW
MARK ON
GAUGE.
When
the
machine is new or
has
been
idle
for
some time, apply oil to places labeled
"PRIME" in Figs. 2 and 3.
Apply
oil daily to all other oiling points as
indicated in Figs. 2 and 3.
Do
not
apply
more
than
ONE
DROP
OF
OIL to
small
hole
indicated
above needle bar in Fig. 3. SATURATE felt in
oiI
wel
Is and applyoiI freely to oiI holes
marked
with
red
dot
on
machine.
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