SCHUNK ROTA NCR 1000, Сборка и руководство по эксплуатации, Страница: 32 / 43

Mounting
32 02.00|ROTA NCR |en
The following table shows the maximum attainable radial and axial
run-out tolerances:
Chuck size 165 200 250 315 400 500 630 800 1000
max. radial run-out error [mm] 0.02 0.02 0.03 0.03 0.04 0.05 0.06 0.08 0.10
max. axial run-out error [mm] 0.02 0.02 0.02 0.03 0.04 0.04 0.04 0.05 0.06
Replacing or adding to jaws
When changing the top jaws, the serration must be cleaned.
Chuck jaws for maximum clamping repeat accuracy must be
turned or ground in the lathe chuck under clamping pressure.
When turning or grinding, ensure that the turning ring or turning
pin is clamped
by the top jaws
and not by the base jaws.
Tighten jaw mounting screws (screw quality 12.9) to specified
torque (see "Screw torques" chapter"
(

4, Page 26) ).
Tighten the mounting screws of the top jaws with a torque
wrench. Never tighten the Allen key with an extension pipe or by
hitting it with a hammer.
WARNING
If the workpiece is clamped at the end of the base jaw stroke,
this poses the risk that the entire clamping force is not
transferred onto the workpiece.
Risk of injury due to loss of workpiece.
•
Always clamp the workpiece at the middle of the base jaw
stroke.
Switching the compensating clamping on and off
The item numbers specified for the corresponding individual com-
ponents relate to chapter drawings.
(

9, Page 41)
With the bolts (item 31), the oscillating clamp blocks the oscillation
of the compensation pieces (item 5) installed in the piston. The
bolts (item 31) are moved by screwing in or unscrewing the screw
(item 33).
Switching on the oscillating clamp:
Piston position or jaw position freely selectable.
5.4
5.5