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Fairfield TARS 600 Series Streetcar - 1:87 Scale
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 Posted: Wed Apr 1st, 2020 07:28 pm
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Michael M
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Gerold,

Where do you find those spring belts?



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Nye, Inyo & Esmeralda Railroad

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 Posted: Wed Apr 1st, 2020 07:56 pm
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ebtnut
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Gerold

It was at the National Capital Trolley Museum in suburban D.C.

Luckily, it was not caught in the big carhouse fire they had a number of years back,
they lost a significant portion of their collection.

The Bowser NOPS model split a gear on me after only a few hours of running.
I think those models were made in China.


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 Posted: Wed Apr 1st, 2020 07:58 pm
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corv8
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Michael M wrote:
Where do you find those spring belts?


He he.... big secret..... 

Basically, most cars still have the original ones....
or, I install a power truck set, this usually includes the belts. 

They should last forever, as long as they don't get lost.
 
However, I collect each and every small (car) engine seal,
that is discarded at our repair shop....
 
Especially those with a diameter of maybe 1 to 2",
those have a spring that is similar to the spring belts.

I cut them to length with a Xuron track cutter,
then bend up the first winding with a knife, so I may  lock the ends together.

This is the nasty part.... I barely see the ends by now, it's even hard with a magnifier,
and it has to be done with the belt already in the truck....
You can't install a spring belt when it is connected. 

There are several "strengths" of those springs in seals.  Many are too strong/ hard. 
I have a small box of them, and try to use a "soft" one that matches the original.




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 Posted: Wed Apr 1st, 2020 08:03 pm
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corv8
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ebtnut wrote:
It was at the National Capital Trolley Museum in suburban D.C.
 
Luckily, it was not caught in the big carhouse fire they had a number of years back,
they lost a significant portion of their collection.


I remember the fire.... 

Intended to visit in the Ninetys, when I was in Washington.

However when I drove out from Georgetown in a taxi cab,
I found that I had selected the day the museum was closed.




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 Posted: Thu Apr 2nd, 2020 02:13 pm
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corv8
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Finished....

Well, lettering still missing.

Drive gave me headaches....
Can motor had an internal bridge from one brush to the ground,
and current went through the spring belt making it smoke ! 

Had to cut open the motor,
as the crimping was too strong to open without damage.

Then tinkered with tension of pickup wires for hours,
until they still were effective but didn't produce too much drag.

The single axle drive works ok,
only in the direction where the torque acts to press the driven axle  down,
in the opposite direction it has considerably less tractive effect. 





I installed prototypically incorrect window shades,
to hide the motor which was a real eyesore.

Usually I prefer underfloor drives,
but wanted to complete this car with period components as far as practical. 







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