NARDINI MASCOTE MS-175E - Spindle Adjustment

SPINDLE
ADJUSTMENT
The spindle
is
mounted over
precision
conical bearings
and
gives
the headstock
exact
and silent
operation. After
prolonged
use,
however,
adjustment is
required.
Proceed
in
this way
-
-
Remove the spindle complernent
(1)
and
the cover
(2).
-
Lossen
the cap screws
(3).
-
Adjust
the bearings through
nut
(4).
-
Tighten cap
screws
(3),
locking
the
nut
(4).
-
Replace the spindle complement
(1)
and the cover
(2).
Because
the bearings
are of high
precision,
we
recommend that
this operation be
done only by
qualified personnel.
NOTE
-
Excessive
pressure
on
the bea
rings
will cause
serious
damage.
When
the
levers of the
headstock
are
in
the
neutral
position,
the spindle
must
tu
rn
f
reely.
Axial clearance
must be
readjusted
to easy
pressure
in the case
of
heating
after
the
adjustment
has been
performed.
Remove
the
cover
(3)
Loosen the trammel
ot
washer
(1)
Adjust
the
leadscrew
axial
clearance
by turning the
nuts
(2).
(This
clearance
must
be
measured
using
a
precision
comparator
with
magnetic
base and a bearing ball.
Apply
a
little
grease,
then fix
the ball
on the
leadscrew
point.
Turn
the
spindle and
press
the
comparator.
The axial clearance must be a maxi-
mun of 0.01mm).
Replace
the cover
(3)
LEADSCREW
AXLE ADJUSTMENT
Adjust
the
leadscrew
axle
as follows
-
26
(;;
(i)