3. Use the provided 4mm Allen wrench to remove the socket-
head bolt on the left side of the mount (Figure 3).
4. Orient the motor so that the drive coupling slips over the
left end of the R.A. worm gear shaft. Now, attach the
motor to the mount by inserting the socket-head bolt
through the slot in the motor’s bracket, and rethreading it
into the mount.
5. Tighten the socket-head setscrew on the end of the
motor’s drive coupling. The setscrew should seat into the
groove on the end of the worm gear shaft. You may need
to rotate the worm gear, using the R.A. slow-motion con-
trol cable, for the setscrew and the groove to line up. You
may also need to adjust the drive coupling to position the
setscrew over the groove; this is done by loosening the
setscrew on the drive coupling that is closest to the motor.
Once both setscrews are tightened, the R.A. motor is
engaged. When the motor is engaged, never, under any
circumstances, should you use the R.A. slow-motion con-
trol cable! If you want to use it, first loosen the socket-head
setscrew on the end of the coupling to disengage the
motor drive.
The motor is now properly installed on the EQ-3 mount, and
should appear as in Figure 4.
3. Installing the Declination Motor Assembly
1. Release the Dec. lock lever, and rotate the mount about
the Dec. axis until the Dec. worm gear assembly is on the
right side when facing the mount, as in Figure 1. Retighten
the Dec. lock lever. If the Dec. slow-motion control cable
is attached to the front end of the Dec. worm gear shaft,
it will need to be removed, for now.
2. Attach the Dec. clutch assembly to the front end of the
Dec. worm gear shaft. This is done by first loosening the
setscrew on the brass portion of the clutch assembly with
the 2mm Allen wrench. Now, slide the clutch assembly
over the front end of the Dec. worm gear (Figure 5).
Position the clutch assembly so that the setscrew lines up
with the groove on the end of the worm gear. Tighten the
Figure 3
Figure 5
Figure 4
Socket-
head bolt
Head
casting
flange
Dec.
clutch
assembly
