Revision 2.0
If you plan to replace the homing sensor cable, remove both side panels. Having an
incoming light source from both sides of the mount into the dark right ascension box is
very helpful to those of us with older eyes. (If you’re not yet 45, you may not
understand.)
The yellow and orange homing sensor cable shows the way to the homing sensor housing
(Figure 11).
Before performing more disassembly, when this panel is removed, try cleaning the
optical sensor (page 10), then testing whether or not homing works.
To remove the right ascension homing sensor housing, in addition to removing the left
panel on the right ascension housing, the lower side panel must also be removed to access
and easily remove the speed reducer.
Figure 12: Remove the lower panel to access and remove the speed reducer.
Raise the mount’s polar axis until the 1/8 inch socket head cap screws in the bottom of
the lower side panel are aligned with the holes in the wedge. Remove all eight screws
and remove the lower side panel. Note that passing the socket head cap screws through
the holes in the wedge can be tricky. Try adding a small dab of heavy grease to the end
of the hex wrench to give it more cohesion with the screw. If the screw falls off in
between the wedge and the right ascension box, you’ll need to fish it out from the inside
“depressions” in the wedge.
With the lower panel removed, remove the speed reducer and motor assembly, then set it
on the bottom of the right ascension housing. As with the declination motor assembly,
The lower side panel
Holes in the wedge
