"Richard J Kinch" wrote in message
.. .
And how is one supposed to remove the tension from the springs with the
door closed? The standard way is to raise the door ...

Wrong, wrong, wrong.


He would be wrong if he were referring to torsion springs. But "yaofeng"
did mention a bad pulley which would clearly make his door counter balanced
with extension springs unless he has rear mounted torsion springs which I
strongly doubt.
In the case of extension springs you should raise the door and clamp it in
the open position first. Then undo the springs to remove the tension. Take
off the clamps, then lower the door and disassemble.

Removing spring tension with the door in the closed position is normally
done with torsion springs.

Although there has been times that I've had to cut the cables to remove the
tension from a door with torsion springs while the door was in the open
position (newbies don't try it).

Rich
http://www.garagedoorsupply.com