Ganter Norm GN 864 Instrucciones De Uso página 10

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6.4 Operating pressure
Caution: The operating pressure must not exceed 10 bar!
The normal working pressure is 6 bar. This applies to all sizes.
Unlocking the clamp
If the clamping mechanism is situated in the above dead
centre position, the clamp will retain its clamping force in
spite of the pressure drop. The unit can be unlocked only by
again connecting the compressed air supply or manually,
with the piston rod of the clamp to be pressed down
(see illustration).
Caution risk of injury:
If the clamp is unlocked manually, the clamping arm may open suddenly.
For this reason, never reach into the swivel zone.
7. Replacing the clamping arm
Replace the clamping arms as shown below:
Dismantle both lateral covers.
Push the shaft down to the end.
Unscrew the headwith the help
of two Allen screws.
Unscrew the piston & take it out.
Replace the used guide
with the new one.
The clamping arms are re-assembled in reverse order:
Replace the two seals of the head.
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1
3
5
7
9
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Take bearings & bolt out.
Take the internal bushing
out of the arm.
Take the head and
the cylinder bushing out.
With the arm straight,
push down with an Allen key
to take the shaft & guide out.
Place the piston & the cylinder bushing
according to the drawing.
2
4
6
8
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