SPANNTOP [nova] – Trouble shooting
Fault
Possible cause
Fault correction
Corrected by
Formal defect
on the
workpiece
Elastic deformation of
feedstock that is subject
to formal defects. After
machining, the workpiece
returns to its original form.
Use feedstock with fewer
formal defects.
Use a clamping head with
several sharp teeth in the
clamping surface.
Specialist
Marks on the
clamping
surface
Point or linear workpiece
clamping
Replace with a clamping
head that has a smoother
clamping surface
Specialist
Wrong clamping head
type
Replace the clamping head
Specialist
Excessive dimensional
difference between the
workpiece diameter and
the clamping bore
Replace with a clamping
head that has a suitable
clamping bore
Specialist
9.3 Start-up after corrected fault
After correcting the fault execute the following steps
to start up again:
7.
xxx
1. Reset the emergency-stop device
2. Acknowledge the fault on the machine tool control-
ler
3. Ensure that no one is in the danger zone
4. Start the machine tool
106
