OPTIMUM
MASCHINEN - GERMANY
Version 1.0.1 dated 2018-01-31 Page 49Translation of the original instructions
K11-200/D5 GB
K11-200-D5_3442764_GB.fm
4.17 Lathe chuck K11-200/D5
DANGER!
Regularly check the clamping force by inserting a power meter in the lathe chuck.
DANGER!
The lathe chuck protection is designed to reduce the risk of workpieces or fractions of
them being expelled from the machine, but not to remove them entirely.
Always work carefully and observe the limits of the machining process.
CAUTION!
Risk of damages due to incorrect choice of clamping position for chuck jaws on
workpiece. If an incorrect clamping position is chosen for the chuck jaws on workpiece,
the lathe chuck jaws may be damaged. The external diameter of jaws must not exceed
the external diameter of the chuck by more than max. 10%.
CAUTION!
Hazard from vibration due to imbalanced rotating parts and noise generation. Physical
and mental strains due to imbalanced workpieces and noise during the machining
process on the clamped and rotating workpiece.
Ensure the chuck's axial and concentric runout.
Check options for remedying imbalances on workpieces.
Reduce the speed.
Wear hearing protection.
If the chuck is involved in a collision, it must be subjected to a crack test before
using it again.
4.17.1 Basic safety instructions
The permissible speed (as per VDI 3106) must be calculated for the machining allowance;
the maximum guide speed must not be exceeded. The calculated values must be tested by
performing a dynamic measurement.
The max. guide speed may only be applied with max. introduced actuation force and a
chuck that is perfect working condition.
If the chuck is involved in a collision, it must be subjected to a crack test before using it
again. Damaged parts must be replaced using original spare parts.
The chuck may only be mounted and removed, commissoned, operated and maintained by
authorised and skilled staff following safety training.
We recommend checking the clamping force before starting a new series batch and
between maintenance intervals with a clamping force measuring device. Only regular
checks guarantee best possible safety.
At high speeds, the chuck may only be deployed under a sufficiently dimensioned protec-
tive hood.
To Next Page