Service and Maintenance
General
Your Explore Scientific truss dobsonian is a precision instrument that will provide many years of fun. When you are treating this
telescope with the same care as for example a expensive camera, it is very unlikely that you will ever need to return it for
service or maintenance..
Please notice the following rules:
a)
Try to avoid cleaning the optics. A little dust on the optical system will not deteriorate the performance of the optical
system by any noticeable amount. A little dust should not be a reason to clean the optics.
b)
If cleaning the optics is necessary it is best to brush away the dust with a fine camel hair brush as it is used for
photographic equipment. Please do NOT use pressurized air or microfiber cloth as it is often recommended for glasses.
Remember – the optician that recommends this microfiber cloth is making turnover, when you come with your
scratched glasses and need new ones. There is only one real reason to clean the optics – when you have gathered a
layer of pollen during your spring observing sessions. The sugar in that pollen is consumed by bacteria that will return
the favor in form of acid excretion – which will damage the coating.
c)
Organic dirt (fingerprints etc.) can be removed from the optical surface with a mixture of 3 parts distilled water and
one part isopropanol. You may add a very little bit of glass cleaner to the mix. Only use soft, white cosmetical tissues.
Soak the mirror to dissolve the dirt and remove the fluid with short, cautious strokes. Remember to change tissues
every few strokes.
d)
While you are using your telescope during the night you will eventually have dew condensing on the surfaces. This will
not cause any trouble – your telescope is designed to take a little moisture without problems. When you store the
telescope, however, we recommend to wipe the surfaces (except the optics) with a dry cloth and give the telescope
some time to evaporate the water on the optics by putting the telescope into a dry room with the lid of the mirror box
open. Wait until all water has dried off until you store the telescope.
Recycling
Please dispose the package properly. Please note that you have to consider the legal obligations when you want to recycle the
telescope. You will get the actual recycling regulations from your local recycling agency or the ministry that issued the
regulations.
