iOptron iEQ45 Step-By-Step Instructions

®
Step-by-Step Instructions for
iEQ45 R.A. Worm Installation/Replacing
September 2013
These instructions serve to explain how to
 Replace a R.A. worm;
 Adjust a RA worm/wheel meshing;
 Inspect and clean a RA worm.
The procedures are similar for the DEC.
Please read the instructions carefully before
working on the mount.
1. Remove iEQ45 main board cover.
2. Remove black R.A. gear box cover by
loosening the two screws.
3. Unscrew four screws on the RA motor drive
board.
4. Next, remove the belt and two pulleys. First,
you will need to turn the wheel so you can insert
a 1.5mm hex wrench and loosen the set screw
on each pulley. It only needs be loosened a little.
See next photo for direction on disengaging gear
to allow the pulleys to turn.
4a. In order to turn the pulleys, you need to
partially disengage the worm gear. Make sure
the power is turned off. While pushing down on
the edge of the RA gear box, turn the RA pulley
to access the set screws with a hex wrench.
If the pulleys are very difficult to turn, you can
connect the power and turn on the mount. Then
turn the pulleys slowly using the hand controller.
Release the set screw on the motor shaft first.
Then remove both wheels at the same time.
iOptron Corporation, Woburn, MA 01801, USA
RA pulley on worm
gear shaft
Hex wrench
1