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Rebuilding the SkyWatcher HEQ5/Orion Sirius 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.
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