Thanks for your reply, however I must admit that it doesn't "feel" right to me. As I mentioned, both the motor and gearbox can be turned quite freely when apart, there is no great friction. It is only when brought together that they're locked solid, just a little play (backlash). It feels very similar to my attempt to turn a worm gear in reverse.
I'm not convinced that the radical change from free rotation of both halves to totally locked is solely due to friction - in fact I thought epicyclic gearing was low friction by nature
In the previous thread Zoomcat said that he was unable to turn the spindle from the outside - and I can confirm this.
Correct technical reading and comprehension is essential for getting things correct.
Quote from: zoomkat on Feb 15, 2014, 06:04 pmCorrect technical reading and comprehension is essential for getting things correct. But, an understanding of the norms of politeness is, apparantly, not so essential. You could have corrected me without the patronising comment - I'll resist the temptation to respond in kind.