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#Post#: 1791--------------------------------------------------
2035 issue
By: doublefan Date: December 13, 2017, 4:13 pm
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A very nice running early 675. Baldwin rims, no magnatraction.
Runs great around the track with a light load. Put 5 or 6 cars
behind her and when she hits a switch goes into neutral, same
for reverse. Up the speed and you can make it. Any thoughts?
#Post#: 1792--------------------------------------------------
Re: 2035 issue
By: 70gtvert Date: December 13, 2017, 4:43 pm
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Are both rollers making contact at all times? Perhaps at the
switch they are both for a short period off contact that is only
manifesting itself as an issue at slower speeds. If your lucky,
that will be your problem. My issue is with my Fast Track track
that allows the unhooking and such. On my vintage engines I get
the same problem you have, engine goes over it and it switches
the e unit to neutral and I know it is making contact. So yours
could be too. Newer engines from the late 70's don't have that
issue. So there could be some kind of issue with the e units
thinking they are having the voltage shut off when they are not
on these older units. Don't understand how it can happen but you
and I seem to have a similar problem.
#Post#: 1794--------------------------------------------------
Re: 2035 issue
By: TrainLarry Date: December 13, 2017, 6:27 pm
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The 'E' unit needs to be locked in forward and your problem will
go away. It is natural for the 'E'-unit to cycle on an
interruption of power; even a slight interruption.
Larry
#Post#: 1797--------------------------------------------------
Re: 2035 issue
By: 70gtvert Date: December 14, 2017, 11:27 am
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Larry, locking the e-unit is not a "fix" for this problem as the
e-unit was/is a design function for these trains. If there was
an "interruption of power" it would not elect what vintage the
engine was to interrupt yet we both have this issue with the
vintage engines, not, in my case, with the more modern engines
even thought they have the same pickups as the older version.
Yes, I bandage the problem by doing what you suggest but again,
it is a bandage that does not allow use of the full features the
engine offers. I've had this happen when using my whistle at
times too on these older engines. It almost seems like something
happens to the current at some of these track junctions or use
of electrical functions which fakes the early (or perhaps more
worn) e unit into thinking there was a power interruption.
#Post#: 1798--------------------------------------------------
Re: 2035 issue
By: TrainLarry Date: December 14, 2017, 3:32 pm
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'E'-units will not cycle by themselves. There has to be an
interruption of power.
When traversing the switches slowly, there is a slight
interruption of power to cycle the 'E'-unit.
Poor connections between track sections will also cause a loss
of power, cycling the loco also.
The slow train speed will cause the loco to cycle, whereas
faster speeds get the loco across the problem sections faster,
with no cycling of the 'E'-unit.
The newer electronic reverse units may need a slightly longer
power interruption before they cycle; hence the run without
issue on the same track.
Larry
#Post#: 1799--------------------------------------------------
Re: 2035 issue
By: 70gtvert Date: December 14, 2017, 4:15 pm
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That still does not answer why, at times, when I use my whistle
function, the e unit will cycle too. There is no specific piece
of track it happens on, it just happens here or there randomly.
Any idea what causes the e unit to cycle then? Yes, the whistle
does function when this happens.
#Post#: 1800--------------------------------------------------
Re: 2035 issue
By: TrainLarry Date: December 14, 2017, 7:04 pm
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On the older transformers, when you press the whistle button,
there is a momentary loss of power as the contacts physically
break and then make electrical contact in a different
configuration. It is this momentary loss of power that causes
the 'E'-unit to cycle.
Pressing the whistle button slowly make cycle the 'E'-unit;
pressing it faster may not cycle it, but the whistle may not
blow.
Larry
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