Revision 2.0
Figure 7: Hex wrench used to remove socket head cap screws near the declination axis housing.
IMPORTANT:
Maintaining the orientation of the homing sensor is critical. If the
assembly is installed incorrectly (by rotating 90 degrees in either direction), when the
declination axis rotates, the mechanical index on the gear will run into the side of the
optical sensor and damage it.
Use a piece of tape, or permanent marker to scribe the correct orientation of the housing
with in the axis. Here is a close up view of the sensor in the sensor housing.
Note the orientation of the
sensor before removing
the mounting screws!