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adjustments
to compensate
for wear
ARM
TO COLUMN
With
the
arm
control
lever
unlocked
and
in
index
release
position,
the arm
should
move
firmly
with
no
vertical
play in the arm.
The arm should
fit snugly
on the column.
If not,
then
adjust.
a.
Remove
two
(2)
screws
from
rear cover
plate
and
tighten
evenly
top
two
3/8-16
bolts,
until
arm
moves
firmly
and there
is no vertical
or horizontal
movement
in
the
arm
when
arm
control
lever
is
locked
or unlocked.
b.
Bottom
two
nuts should
be snugged evenly,
but not
nearly
as tight
as top two
bolts.
c.
Re-install
Rear Cover Plate.
3/8-16
BOLTS
ADJUSTING
CARRIAGE
BEARINGS
in proper
adjustment
the top and bottom
radii
of all four
bearings
should
be in contact
with
the arm tracks for their
entire
length
and carriage
should
roll
freely
but with
some
resistance.
To test for
looseness
between
bearings
and tracks on radial
arm, perform
the following
steps.
1.
Remove
left-hand
carriage
cover.
2.
Push the carriage
to its full most rearward
position.
3.
Finger
hold
front
carriage
bearing
as shown
and apply
as much
force
as possible
and at the same time
pull
carriage
forward.
If
you
can
stop
the
bearing
from
turning
it will require
adjusting.
4.
Check
rear
bearing
in the same
manner
and adjust
as
follows:
a
Loosen
nuts
just
enough
to
permit
the eccentric
screws to turn.
b.
Rotate
the eccentric
screws
a partial
turn
(left
or
right)
as required
to take up looseness.
c.
Hold
the
heads of eccentric
screws
in the position
established
in the
preceding
step
and tighten
nuts
on underside
of carriage.
Correct
adjustment
exists
when
you
cannot
keep
the-bearings
from
turning.
However,
excessive
bearing
pressure
will
cause
difficult
operation
and rapid
wear.
d.
Install
carriage
cover.
ECCENTRIC
SCREW
WASHER
ASSEM_,LY
CARRIAGE
BEARING
PLAIN
WASHER
LOCKWASHER
NUT
I
29
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