Tony Hwang wrote:
When was last time you adjusted the
chain tension?

The last time it needed it. That's when the chain begins to sag enough
to touch the horizontal part of the GDO rail.

Jeff

PS GDO still working fine, no unwanted reversing or stopping.

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.