7 | Maintenance
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Power Chuck DURO-A
2.
Move through the complete stroke several times.
Ø
The grease is distributed.
Ø
After 400 clamping cycles, move through the complete stroke again
at least twice.
ü
The power chuck is lubricated.
7.3.3
Checking the Device for Correct Operation
Correct operation of the power chuck must be checked during commission-
ing after assembly and in the course of maintenance work.
7.3.3.1
Checking Jaw Stroke
Move the clamping cylinder once into the foremost and rearmost position.
Measure the jaw stroke of the base jaws and compare with the table
(Overview of Construction Sizes).
Ø
The jaw stroke must correspond to the value given in the table
(Overview of Construction Sizes).
In the event of faults, the two end positions (opened and closed) and the pis-
ton stroke of the clamping cylinder must be checked.
7.3.3.2
Checking Clamping Cylinder End Position
1.
Measure the end positions of the clamping cylinder with the installed
power chuck.
Ø
Clamping piston stroke limitation forwards in the clamping cylinder,
backwards to machine spindle or flange.
2.
Compare the measured dimensions with the recorded dimensions (As-
sembly on Machine Spindle) without installed power chuck.
7.3.3.3
Checking the Clamping Force
Check clamping force with clamping force measurement system.
Recommended clamping force measure-
ment system
ID no.:
F-Senso Chuck
(only for external clamping force measure-
ment)
179800
Suitable jaws may have to be used. In the case of internal clamping,
only the external clamping force can be measured.
Summary of Contents for DURO-A
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