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any fine instrument. We suggest that you transport and store the mount in a case or in a well-padded box. ALWAYS
disassemble the mount before moving it or transporting it. More damage can be done in a few careless seconds in transit
than in many hours of normal operation.
Try to keep your mount protected from dust and moisture when not in use. In warm, humid weather, be aware of the dew
that may have formed on the mount while in the field and allow the mount to dry out before packing it away for storage once
you get home. On the other hand, if it is cold and dry outside, keep the mount packed up when you bring it into the house
until it reaches room temperature to avoid “fogging it up.” (The same advice applies to telescopes, eyepieces and other
equipment in your Astro-arsenal.)
Cleaning and Touch-up
Wipe your mount clean with a soft dry cloth. If needed, you can use a damp cloth or a cloth that has been sprayed with a
mild, non-abrasive cleaner (window or all purpose cleaner – no bleach). Do not spray cleaners directly onto your mount. If
you use a cleaning product, follow with a damp cloth to remove the chemicals from the mount.
The hard anodized surface of your mount is relatively maintenance free and should not require frequent touch up like some
painted surfaces.
Mount Maintenance
Under normal operating conditions, minimal maintenance is required. If the R.A. and Dec. axes are attached together for a
long time in outside
conditions (i.e. in a permanent observatory) then the mating surfaces should be lightly oiled or greased -
if you expect to get them apart again after 10 years.
Jostling and vibrations associated with transport to and from observing sites has had the effect of causing screws and
fasteners to work their way loose over time. We have worked very hard in both the design and assembly of our mounts to
alleviate this problem, but it is still a good idea to periodically (once or twice a year) inspect and if necessary re-tighten any
easily accessible fasteners. Additional maintenance information can be found below in the troubleshooting section and in
the Technical Support Section of our website.
ADDITIONAL TIPS AND SUPPORT
For additional information regarding the
Mach1GTO
, refer to the Technical Support Section of our website. We also
encourage you to participate in the ap-gto user group. The members of this group are very knowledgeable about the
operation of their mounts, CCD imaging and other related issues. The staff of Astro-Physics also participates and you will
find a wealth of information in the archives. To find the group, link from User Groups in our website’s sidebar.
We encourage you to submit your technical support questions directly to Astro-Physics by phone or e-mail: support@astro-
physics.com.
TROUBLESHOOTING
Additional troubleshooting questions are in the GTO Keypad manual. Some of the issues discussed in the keypad manual
relate to mount communication issues whether you use the keypad or control the mount with a planetarium program or
PulseGuide. Please refer to them.
The LED on the GTO Control Box changes from red to yellow and the motors stop or go out completely
1. The motors are overloaded, probably due to an unbalanced load on your mount.
Rebalance your telescope, and then press one of the N-S-E-W buttons to reset the keypad. Re-enter the last object
on your keypad and the scope will slew to the correct position. Even though your motors had stopped, the logic in
the control box retained the scope position in memory. As long as you didn’t change the pointing position of the
scope, you are still calibrated.
If the scope was moved during re-balancing, simply enter a nearby bright star on the hand controller, press GOTO
and allow the mount to finish slewing. You can then move the scope manually or with the N-S-E-W buttons to center
the star in the eyepiece, and press the #9 RECAL button. This will recalibrate the mount.
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