Adjustment Knob to adjust the latitude. Tighten the 2 locking T‐bolts.
R.A. balance
Polar Axis Cover
Lat. Locking
Lat. Adj. Knob 
Polar Axis (R.A. axis)
Azi. Adj. Knob
Polar Scope Cover
DEC balance
Return the mount to Zero Position after balancing; i.e., CW Shaft points to ground, and telescope tip is at its highest position.
Turn Gear Switch Knob by 90° to LOCK position to re‐ engage the worm to the worm wheel. Retighten the Tension Adjuster as the last step to lock the gear (see Notes below).
Important Notes on Tension Adjusters
The rule of thumb is to fully screw in the Tension Adjuster and then back out by about 2 turns. The optimum spot varies with actual conditions, but is mostly within 1‐3 turns from the fully tightened position. Ideally, it should be at a position just deep enough to rid any free movements (plays), while force on the worm assembly is kept at a minimum. Please refer to User’s Manual for more details.
8.Connect Cables: Use the straight RJ11 cable to
connect DEC Control Unit to Main Control Unit. Connect Go2Nova® 8408 Hand Controller to the HC port on the main unit. Plug in a 12V DC power supply to the POWER socket.
9.Polar Alignment: Remove Polar Scope covers. Look through polar scope to locate Polaris (or Sigma Octantis at southern hemisphere). Slightly loosen Tripod Center Rod Knob. Use Azimuth Adjustment Knobs to center the pole star in the azimuth direction, followed by tightening the Center Rod Knob. Slightly loosen 2 Latitude Locking T‐bolts, use Latitude
Quick Polar Alignment
Fast and accurate polar alignment can be performed with iOptron’s AccuAligningTM Polar Scope.
(1)Connect Polar Scope LED cable between main unit’s Reticle plug and LED socket under DEC axle. Use Hand Controller (“Set Up Controller” => “Set Polar Scope Light”) to set illumination intensity.
Polar Scope LED
(2)Use Hand Controller (MENU => “Align” => “Pole Star Position”) to display the Polaris Position on
the LCD screen, as indicated in the left side of the figure below. For example, on May 30th, 2010, 20:00:00 at Boston, US (lat N42º30’32” and long W71º08’50”), 300 min behind UT, the Polaris Position is at 1h26.8m and 41.5m
(3)Use Azimuth and Latitude Adj. Knobs to adjust the mount in both directions and put the Polaris
4
iOptron Corp. 6E Gill Street Woburn, MA 01801 USA (781)
