Mounting
30
02.00|ROTA NCR |en
Cylinder piston in foremost position
R1 = Push the chuck piston to its foremost position and measure
with a depth gauge.
R2 = Draw bar in foremost position. Measure with a depth gauge.
Mounting the chuck with a reduction or extension flange
If the chuck is screwed on with an intermediate flange, the
following points must be observed:
• For mounting the chuck on the machine spindle with a short
taper by means of a reduction or extension flange, a
corresponding chuck flange is attached on the spindle nose.
• Before installing the chuck flange, remove any dirt or swarf
from the machine spindle and from the centring mount and the
contact surface of the flange.
• A chuck flange made by the user himself must be finished ma-
chining on the machine spindle and must be balanced before
the chuck is mounted.
• After mounting, it must be ensured that the flange is fitted
tightly on the entire surface.
• Then check the run-out accuracy and true running as described
in "Measures before starting assembly" (see Fig. "Assembly of
the chuck" – B)
The chuck is mounted after the flange has been aligned. During
this, it must be ensured that any contaminations on the flange and
on the chuck contact surfaces are removed.
WARNING
Risk of injury from falling of the unit during transport and as-
sembly!
The use of a crane is necessary for assembling the lathe chuck.
This can be fastened on the eye bolt provided (see Fig. "Assembly
of the chuck" - C). The eye bolt is in all deliveries from chuck size
250 and up included.
Before commissioning the lathe chuck, the eye-bolt has to be
removed.
• Push the chuck onto the intermediate flange. During this, it
must be ensured that the through-holes for attaching the
chuck coincide with the threaded holes of the flange (see Fig.
"Assembly of the chuck" - D).
5.3.1