stair step operation on a 1978 fc?

[thomas_sorrentino]

I think somebody just had a similair problem, but I didn't read the
fix. My step retracts fine, but it doesn't come out when I open the
door. If I manually push the door switch, I can hear a clicking and
what sounds like air release. After the engine motor is shut down and
system air pressure bleeds down sufficiently, I can stand on the
stair and manually pull it out. "So far" my questions are as follows.

1.) How is this suppose to work?

2.) I found a switch under the the stair (looks the same as the one
in the door jamb), that the wires were all corroded and the switch is
obivously bad. When I cleaned up the wires and bypass the switch, it
seems to have no effect either way. Whats that switch for?

3.) On the forward part of the generator compartment theres a relay
that looks something like and old fashion tv tube, when I wiggle it I
get a clicking noise. (might have nothing to do with my step problem)

4.) This may or may not have anything to do with the problem either,
but I noticed the stairwell light is not coming on with the opening
and closing of the door. Oh yea, there's two switches in the door
jamb, what is each one for?

Thanks in advance for the help.

Tom Sorrentino
Bedford Hills, NY
1978 33'fc