Troubleshooting - Allmatic NC4 Serie Instructions De Service

11 | Troubleshooting

11 Troubleshooting
Fault
Spindle or spindle nut moves
with difficulty.
Clamping force is not built up. Minimum chuck capacity
Spindle can no longer be
turned.
Clamping force cannot be re-
leased.
68 / 376
Cause
Spindle thread or sliding sur-
faces contaminated with swarf
or corroded.
reached.
Workpiece clamped laterally
too far off centre.
Coupling is released too early. Check spindle and spindle nut
Power assist defective.
After releasing the clamping
force, the coupling has no
longer tangibly locked into po-
sition again.
Mobile jaw fixed with too long
screws.
Power assist defective.
Remedy
Dismantle, clean and oil the
NC4.
Use different jaws.
Clamp workpiece centrally.
for smooth running, remove
corrosion if necessary.
In the event of a worn coup-
ling mechanism, contact ALL-
MATIC Service.
Contact ALLMATIC Service.
Lock spindle into position
again by turning counter-clock-
wise.
Install new rubber scrapers.
Use screws of suitable length.
Unscrew pressure plate from
lower section.
ALLMATIC
NC4