Maintenance
02.00|ROTA NCA |en
39
Technical condition
With the smallest possible actuating pressure (clamping cylinder),
the base jaws should move evenly. This method only provides a
limited indication and is not a substitute for measuring the
clamping force. If the clamping force has dropped too much or if
the base jaws and piston no longer move properly, the chuck has
to be disassembled, cleaned, and relubricated.
Only use genuine SCHUNK spare parts when replacing damaged
parts.
Maintenance intervals
Lubricating the greasing areas:
Lubrication interval Demands
every 30 days or
after 50,000
clamping cycles
normal / use of coolant
every 10 days or
after 15,000
clamping cycles
high / use of coolant
after one year or
after 250,000
clamping cycles
Full cleaning with disassembly of chuck
depending on type of contamination and
quantity
Disassembling and assembling the chuck
The item numbers specified for the corresponding individual
components relate to chapter drawings.
The chuck can only be disassembled once it has been removed.
1 Remove the screws (item 10).
2 Remove screws (item 27), T-nuts (item 26) and top jaws.
3 Unscrew screws (item 11).
4 Mark the position of the mount (item 7) in relation to the
chuck body (item 1).
5 Undo the screws (item 14) several thread turns and hammer
gently on the screw heads using a rubber mallet. In so doing,
the chuck must be in a horizontal position. This allows the
mount (item 7) to be released from the centering for the
7.2
7.3
