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Maintenance
ASR1200 Rotary Stage User's Manual
Figure 4-2:
Typical Ringseal
1. Remove power to the stage.
2. Open the collet chuck. Since the collet holder is in the normally closed position, this will require air pres-
sure supplied to the air inlet.
3. Once the collet has been released, unscrew the collet nut as shown in Figure 4-1. If necessary, use a
spanner wrench available from Aerotech.
4. With the collet and collet nut removed, the ringseal will now be exposed. Unscrew the ringseal from the
shaft.
5. Remove the damaged or worn o-ring and replace it with a properly sized and lubricated new o-ring (as
shown in Figure 4-3). A long pick or thin screwdriver will be necessary to remove the o-ring and replace
it. Contact Aerotech for the appropriate o-ring size and type.
6. Re-insert the ringseal into the inner collet housing and tighten it into position.
7. Replace collet and collet nut.
Figure 4-3:
Cross-Section View of Ringseal Showing O-Ring
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Chapter 4
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