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Craftsman 103.22500 Operating Instructions And Parts List Manual page 3

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SPEED
For
best
perf
ormance
this tool should run at
8p-
proximately 2700 R.P.M. This
speed
is attained
by
using
a 2 inch diameter motor pulley with
a
Yz
inch
V-groove.
Be sure
to specify the shaft diameter of your
motor
when ordering
the
motor pulley.
BETT
Use
a
standard
%
inch
V-belt. To
determine
the
belt length
place
rhotor and tool
in
operati.g
posi-
tion and
measure
around the outside
of
the pulleys
with
a steel
tape. Do not
measure
in the
grooves.
TUBRICATION
This
sander
is equipped with
precision
type,
sealed
ball
bearings. These bearings
were packed
with
grease
at the factory and require no additional lubri-
cation for the life of the
bearing.
To
maintain smooth and
easy
operation
of
the
controls,
oil the following parts
occasionally
with
any
good grade machine
oil:
|
.
Belt adjusting knobs Nos. 23 and 33
where
they
enter the casting.
2.
Pulley support
pins Nos.
25
and 29 where
they
enter the
casting.
coNTROTS
The
sanding
belt may
be raised from horizontal to
vertical position after loosenittg the two belt
table
pivot lock bolts, No.
I
0.
Always tighten
these
bolts
securely
before operation
in
any position.
The belt adjustir,g knobs align
the iCler
pulley,
No.
27
, to
keep the sanding
belt
running true
over. the
pulleys and centered
on the belt
table.
These
knobs
also
control the tension of the sanding belt.
The table
tilt
lock knob locks
the
work table
at any
desired degree
of
tilt
from
0o
to
45".
The
belt
table fence provides
a
backup
for
the
work
piece
when using the sanding belt.
T-t(e RPA
wl
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faufrl
oil.)
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2.
Apply belt
tension
by turning
the
two belt
ad-
justing knobs clockwise. While applying
ten-
sion keep
the idler pulley approximately p?r-
allel with the drive
pulley.
When proper
ten-
sion has been applied you should be able to
deflect the
belt,
as shown
in Fig. 2,
ErpproX-
imately
Yz
of
an
inch.
Align
the sanding belt so that
it will
track on
the
approximate
centers
of the two pulleys and remain in
one
position on the pulleys,
as
follows:
|
.
Rotate the belt
bv
hand
in
the correct
direc-
tion,
as
shown
in Fig.
|
.
2. If
the belt tends
to run off to
the right, turn
the
right hand knob clockwise. If
the
belt
tends
to run off to
the
left, turn
the
left
hand knob
clockwise.
3.
Recheck
the belt tension and adjust
if
fi€c€s-
sary
by
turning both knobs an equal
amount.
4.
The tool should now be ready to operate. If,
under power, the
belt
does
not track propetly,
make
very minor
adjustment
of the
knobs
while the tool
is
in operation.
When installirg new sanding belts follow
the
above
steps. Be
sure
the arrow on the inside
of
the
belt
points
in the
same direction
as the
rotation
arrow shown in
Fig. l.
NOTE:
Tighten
all
pulley set
scre\
rs
after a
few
hours
of operation.
The work table stop
screws
may require adjust-
ment
to
obtain the
90" and
45" settings.
If
adjust-
ment
is necessary,
it may
be accomplished
as
f
ollows:
|
.
Loosen
the table
tilt
lock knob, No.
5
3,
and
using
a
combination
square set
the
work
table
exactly square
with the
sanding
ciisc.
R
e-
tighten knob.
2.
Loosen
hex nut,
No.
50,
and turn the
square
head
set
scr€w,
No.
5 |
,
until it
contacts
tlre
rib
on the underside
of
the
table.
Re-tighten
the
hex nut,
while holding
screw
in this ptsition.
3.
Repeat
the above procedure
f
or the
45
"
stop
screw,
No.
59.
CAUTION: In
placing the
work
table
assemblv
on
the
tool,
keep
the
edge
of the table
as
close
as
pos-
sible
to
the sanding surface
to
eliminate the J.rr-
ger
of thin work
becomittg
wedged between
the
table and
the sanding
surface.
The
socket head set screw,
No.
5 5
,
secures the
table support,
No.
49,
to the
support
rod, No.
52,
and
also
serves as
the
lock stud for the table
tilt
lock
knob. If
adjustment
of
this stud is
necessary loosen
the tilt knob and tighten
securely
with the
Allen
wrench provided.
The
sanding
belt table when
used
in
the vertical
position should be
set square
with
the
work table,
as
follows:
l. After
the
work table
has
been
installed
for
use
with
the belt, loosen the two belt table pivot
Iock bolts,
No.
|
0.
2.
Place a combination
square
on the
work table
and
pivot
the
belt table until
the
two
tables
are
90" to
each other.
3.
Re-tighten
pivot lock
bolts.
This procedure must be repeated
each
time
the
position
of the belt table
has
been changed.
*
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FIGURE
2
ADJUSTMENTS
Tension
the
sanding
belt
before operatirg, as fol-
lows:
l.
Face
the end
of
the tool with rotation arrow,
see
Fig.
l,
pointing away from
you.

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