astro-babys guide to stripping and rebuilding the HEQ5 mount
The Synta HEQ5 Equatorial Mount There seems to be a lack of manuals for the HEQ5 online as regards stripping the mount down, cleaning and lubricating etc. This is my effort at providing a comprehensive and easy to follow guide for the HEQ5. The HEQ5, HEQ5-Pro and Sirius EQ-G are the same basic mount - the only difference is the GoTo versions with the motors, the power board, the main board, the handcontroller and the cosmetics. The strip down procedure will be identical.

I found on strip down mine had a reasonable quantity of manufacturing debris left inside - this became noticeable after a GoTo upgrade with the motors stalling and the mount sticking.

If your mount performs relatively well but suffers only from motor stall then before stripping down the mount you should try the 'adjusting the worm engagement' part of this guide.

1 - Strip Down and Cleaning of the Declination Axis 
2 - Lubrication and Reassembly of the Declination Axis
3 - Strip Down and Cleaning of the Right Ascension Axis
4 - Lubrication and Reassambly of the Right Ascension Axis
5 - Adjusting Worm Gear Engagement / Motor Gears
6 - Adjusting the altitude thrust bearings
7 - Appendix - Hardware and Software History
Return to Astro-Baby Home Page