Sears IO3.243OO - Controls Overview; Saw Adjustments and Alignment; Blade Handling and Tracking; Blade Guide Settings

-
above
be sure
to specify
the
shaft diameter
of
your
motor.
Install
the motor
so
that
the direction
of
rota-
tion
of the
Drive
pulley
is counter-clockwise
when
viewed from
the
pulley
side
of
the
tool.
CONTROtS:
The table
may be
tilted from a
level
position
to
45
degrees forward,
after
loosening
the
table
tilt
lock
with
the
handle
provided.
The
degree
of
tilt is shown
on the calibrated
trun-
nion scale by
.
pointer
as
shown in
figure l.
The
upper
g,rid.
arrembly
may be raised
and
lowered to
accommodate
material of various
thick-
ness after loosening
the blade
guide
elevation lock
knob
shown
in 6gure l.
The blade thrust roller arsemblies
and
the
lateral
guides
in both
the
upper
and lower blade
euide
assemblies
may
be reset
after
the
set screw
holding
each unit
has been backed out
several turns.
ADJUSTftTENTS:
This
band
saw
was
completely
checked
and
tested
under
power
at the factory.
Rough handling
in ship-
ment may have
caused some
misalignment during
transit. Following
are
several
points
which might be
checked
to
insure
proper
operation.
The table should
be
square
with the blade
when
the
pointer
indicates
zero
on
the trunnion scale. If
this
is
not
the
case
the tool
will
not
produce
accurate cuts
when set
aeeording to thi,srcalc.-€orectionsmay
be
made
by resetting the
table
square with
the blade
(use
an
accurate square) and
then
readjusting
the
pointer
to
the
zero
mark
on the
scale
by
loosening the screw
which
holds
the
pointer
to the tool.
cover
near
the
blade tension
adiusting
knob.
The
cover
may be
removed
for checking
tension
or t€'
placing
blades
after removing
the
three
knobs directly
opposite the
cover retaining
nuts
shown
in 6gure
l.
Tension
adjustments
for the
variouswidth
blades may
be made
according
to figure 2.
To remoye or
replace a blade,
remove
the
front
cover
and the
set screw
in
the
table
slot.
Release
the
tension until
the
blade
may
be slipped
off
easily.
In-
stall the new
blade with
the
teeth
pointing
down
and
away
from the
drive
pulley
and
apply
the correct
tension.
Turn
the
pulley
forward
by hand for at least
a dozen revolutions
or
more.
Watch caret,,.'^ry
to see
that
the
blade
tracks
in
the
same spot
consistently.
If the blade tends to
ride
off the
wheel, two
adjust-
ments are
provided
to
return
the blade
to
its
proper
track
at the center of the drive
wheel.
For minor adjustment of
blade
tracking
difficulties,
the
blade
alignment adjusting
knob
shown
in
figure
I
may
be turned
slightly in or out causing the rear
idler
wheel to
pivot
and retrack
the
blade.
If
this
ad-
justment
is not sufficient the
shaft
on
which the
up.per
idler
wheel is mounted
may
be
moved toward
ot
away from
the frame.
It
is
held in
place
by the
square
head screw
in
the casting
over
the
shaft.
Be
certain
that
this
screw
is
securely
tightened
after
any
adjustment
of the
upper idler wheel.
Check
the
blade
for
correct tension
before
re-in-
stalling
the
cover.
Replace
the
set screw
in the
table
slot.
Blade
guide
assemblies
are
provided
both above
and
below
the. table
to support the blade
against
lateral
and
direct
thrust.
The
roller type
guides
be-
hind
the blade should
be set approximately
|
/64
inch
from
the blade
edge.
The
blade should touch
these
rollers
only
when
cutting, and
not when the
saw
is
running
free.
The lateral
guides
should be
set
as
close
as
possible
to
the blade without touching.
When
viewed
from
the side
they
should be in such
a
position
that if the
blade
is
pushed
against
them,
the
flat sur'
face,
and
not
the teeth
will ride the
guides.
These
Iateral
guides
should
be
checked often and
refaced
and reset
when
necessary,
to
keep them
close to
the
blade.
When
the saw is
turned by
hand,
or when running
free
under
power,
the
blade
should track
smoothly
on
all
three
wheels,
and should
touch
none
of the
guides,
upper
or
lower.
The
complete
lower
guide
assembly
is
held
in
place
by
"
set
screw through
the frame
casting
and
may
be
adjusted
as
a unit
after
loosening
this set
scre!r'.
After
making
any
adjustment
on
the
Band Saw,
check
carefully
by
turning
the
mechanism
by
hand
several
times
before
applying power.
BIADE:
Following
are
several
common causes of
band
saw
blade breakage. Avoid
these
situations
by frequently
ADVANCE
WASHER
TO THIS POSITION
TO
APPTY THE
NECESSARY
TENSION FOR
3/I
INCH WIDE
BIADES.
WITH
WASHER
AT THIS
POSIIION
PROPER
TENSION
HAS
BEEN
APPTIED
FOR BOTH
3/r6
AND
r/r
INCH BLADES.
FIGURE
2
A stop
screw
with lock
nut
may
be found
projecting
from
the lower table
surface
over
the frame casting.
This
screw
when
properly
set
will allow accurate
return of
the
table to
a
true
le.rcl
position
after it has
been
tilted
for an angular
cut.
The
proper
tension
for the
3/ | 6, |
/4,
or 378
inch
wide blades recommended
is
shown
on the
blade
tension indicator.
This indicator is
just
inside
the