Vixen SPHINX SXD Mount - Manual (Page 13)

Page 13
To balance the equatorial mount in right ascension:
Loosen the R.A. clamp while holding the counterweight bar and turn the telescope tube
until the DEC axis comes to horizontal as shown in the figure. Loosen the lock screw on
the side of the counterweight so that it can be moved to a point where it balances the
telescope. It is the point that the telescope remains stationary when the R.A. clamp is
loose.
Tighten the lock screw on the counterweight to hold it in place. Tighten the R.A. clamp on
the equatorial mount securely.