On 14/03/2014 11:00, bert wrote:

I've taken off the actuator. How much should the shaft rotate? About 1/4
turn in my case. Doesn't seem much.

That's all it needs between closed and open. Bit like a butterfly valve
in a carburettor.

Was it stiff, and is it now freer as a result of working it? A few drops
of WD40 round the shaft may be an idea.
--
Cheers,
Roger
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