If the ground is brought into the switch through the entering side
adequately then the extra pin is not a real problem. Note that the ground
on the out bound tracks after the switch also need ground and it is not coming
through the switch so there needs to be a connection somewhere on that side
too.
Since ground is coming in from the single track on both outside rails, you
should be able to follow those rails tot he other end and if there is no break
in the rail, these are the ones that do not need the pin. If there is a
break in the rail as there is on the curve track of an 022 switch, then that is
the one that needs the pin.
I probably have the wiring diagrams for the uncouplers. There could
be a broken wire or a bent contact in the controller. Or the little
insulator that makes the contacts behave correctly for the button being pushed
could have come out inside the controller. Take the controller
apart and see if there is continuity to the copper contacts. Be careful to
write down how the posts of contacts go together if you take them apart but
should not need to for continuity. check that the connections connect some
of the terminals. if not the problem, then check from the contacts to the
rails.
Scott
I'n in the process of cleaning up my electrical items and have a
question about the 1122 and 1122-E differences. I know the older ones
have the segmented rails and do not need the insulated pins on the inner
rails. However my controllers seem to work OK even when I put pins
in the early 1122s thus insulating BOTH ground rails. The E type
are no problem and both types are switching OK so far. But have I
eliminated the derailing capability in the early ones by adding the extra
insulated pin and should I remove them? I see that I have no ground at
all coming into the switch from the EXIT lines. Does that matter if I
have a ground coming in from the ENTER side? What if I am coming from
the other direction? Any info appreciated. I also have some
questions about repairing some 6109 uncoupler/unloader tracks. I have
one that only unloads and another that only uncouples. The controller
seems to be according to the diagram. Do I have a short in the
track? Thanks. Don Newman