Explore Scientific ES-DOB1645-00 16" f/4.5 Truss Tube Dobsonian Telescope

User Manual - Page 6

For ES-DOB1645-00.

PDF File Manual, 18 pages, Read Online | Download pdf file

ES-DOB1645-00 photo
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6
We suggest reading all this manual in its entirety before attempting assembly.
If you are assembling your telescope for the first time, we recommend doing so in a warm room.
First, place the mirror box onto a table to attach the altitude wheels to the mirror box. You will notice that each
altitude wheel has two holes. One of the holes matches the threaded hole on the mirror box, and the other matches
the threaded hole in the lid of the mirror box.
Important: You have four possibilities to attach the altitude wheel onto the mirror box of the telescope. There are
two sets of holes on both sides of the mirror box. Having two sets gives you an additional degree of freedom to
balance your telescope. If you are just using lightweight eyepieces (1.25 inch) we recommend attaching the altitude
wheels to the lower set of holes. If you are using a coma corrector, heavy eyepieces or both we recommend using
the upper set of holes.
Though the distance of the holes in the altitude wheels appears to be similar, the orientation of the wheels on
the mirror box DOES matter – holes will not align if the altitude wheels are mounted in the wrong orientation.
We recommend marking the position of the altitude wheels so that everything works on the first try next time
you assemble the telescope. We recommend using luminescent paint or stickers that enable you to assemble the
telescope in complete darkness so your eyes can adapt to the night sky faster. These are available from model
making sources.
After attaching the altitude wheels onto the mirror box, place the rocker box on the ground and insert the mirror
box into the rocker box. Make sure that the two fans on the back of the mirror box are on the side of the rocker box
that has the deep undercut (Figure 6). One of the fans pushes air into the mirror box while the other pulls air out.
Next, you will need to install a clutch on each side of the rocker box. These hold the structures weight and enable it
to move but not slip. To install, place the clutch with the tension pad facing the altitude wheel into the hole nearest
the end of the box with the fans. Attach the clutch by screwing in the large thumb knobs until the tension pad
presses firmly against the wheel.
Figure 6
Assembly
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