ASR1200 Rotary Stage User's Manual
Maintenance
4.3.3. Wet Cut Rotary Union Seal Replacement
There is a rotary seal in the wet cut rotary union that requires periodic replacement. Aerotech recommends
replacing this seal before 1000 hours of stage run time. Contact Aerotech for obtaining appropriate replace-
ment seals. Figure 4-4 shows a cross section of the rotary union assembly. The procedure for seal replace-
ment is as follows:
To minimize the possibility of bodily injury, confirm that all electrical power is disconnected
prior to making any mechanical adjustments.
The wet cut rotary union seal should be replaced and relubricated at a minimum of
every 1000 hours of stage operation. For heavy use or three shift operation this cor-
responds to replacement every month. For lighter use or single shift operation, this
corresponds to replacement every three months. Failure to do so will void the stage
warranty.
Figure 4-4:
Cross-Section View of Wet Cut Rotary Union Assembly
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Chapter 4
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