2.4 m Alt-Azimuth Telescope Maintenance Manual MM-12920-1
EOS Technologies, Inc. • 3160 East Transcon Way, Suite 180 • Tucson AZ 85706 • USA
12/1/2009
Tel: +1 520 624 6399 • Fax: +1 520 624 1906 • Web:
www.eostech.com
Page 42 of 43
c.
Note any difference in distance and add weight to compensate as before.
9. Repeat step 8 for a position near zenith pointing.
10. The telescope OSS should now remain still when placed in any elevation position.
11. More accurate balance can be obtained by looking at bi-directional motor torque. In general,
the balancing techniques described above are sufficient.
CAUTION: Any device added to or removed from the telescope OSS will
require a re-balance to compensate.
NOTE:
If the same input force is applied in each direction, the OSS should
come to a stop at the same distance.
This procedure helps to overcome the inherent bearing static friction
and allows a more accurate balance.
