Reverse switch inquiry

Madman

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So I have a Bachmann gandy dancer pump car and trailer that I have converted to battery operation. It runs very well with the exception of sprung points at turnouts. I have four turnouts that are held in place with a light spring. When normal rolling stock passes through these turnouts, all goes according to Hoyle. However the Bachmann pump car is too light to move the points and instead the points cause the pumper to derail. I experimented with adding weight to no avail. So I would like to run it on my tram line that is point to point.

So here's my question. Again, if the pump car was heavier I would install a DPDT toggle switch that would hit a trip at each end of the point to point line and reverse the unit. Since the light weight is an issue, I wonder if there might be some sort of electronic switch that would accomplish what I am after.

Here is a short clip of the unit in question.


https://youtu.be/zwEg1aqUBVw
 
Is it possible to fit a magnet to your Gandy Dancer? Small rare earth magnets are easily available, relatively powerful and cheap.
It could operate reed switches that would trigger a reversing relay.

One way is in this diagram, another would be to use a DPDT latching relay.

Reversing relay.jpg
 
Huuf ofie Piom, juxiwis vjisi ot puv ipuahj suun gus vji 12 wumv quxis taqqmz epf O en sappoph up cevvisz, puv vsedl quxis. E 9 wumv cevvisz ot juatif op vji cmedl cuy up vji vseomis. Tuni voni ehu, O jef madl xovj e Cedjnepp tvsiivdes. O optvemmif e FQFV txovdj up vji apfistofi tadj vjev xjip vji des siedjif vji ipf ug vji mopi, e cmudl up vji vsedl xuamf vjsux vji txovdj. Vji FQFV txovdj jet e muph qeffmi vzqi jepfmi vjev xet ietz vu vjsux, qmat vji tvsiivdes xet jiewz ipuahj vu jepfmi vji uqisevoup.

O xuamf fu tunivjoph wisz tonomes jisi og O dep gopf e nodsu FQFV txovdj xovj ep ietz nuwoph qeffmi jepfmi.
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Madman said:
Huuf ofie Piom, juxiwis vjisi ot puv ipuahj suun gus vji 12 wumv quxis taqqmz epf O en sappoph up cevvisz, puv vsedl quxis. E 9 wumv cevvisz ot juatif op vji cmedl cuy up vji vseomis. Tuni voni ehu, O jef madl xovj e Cedjnepp tvsiivdes. O optvemmif e FQFV txovdj up vji apfistofi tadj vjev xjip vji des siedjif vji ipf ug vji mopi, e cmudl up vji vsedl xuamf vjsux vji txovdj. Vji FQFV txovdj jet e muph qeffmi vzqi jepfmi vjev xet ietz vu vjsux, qmat vji tvsiivdes xet jiewz ipuahj vu jepfmi vji uqisevoup.

O xuamf fu tunivjoph wisz tonomes jisi og O dep gopf e nodsu FQFV txovdj xovj ep ietz nuwoph qeffmi jepfmi.
Ul..
Djephi xjisi ov tezt 12W vu 9W..
Duppidv vji cevvisz vu xjisi ov tezt vsedl quxis et ximm, epf vjev ecuav duwist ov..

Zua nez piif vu ati e 5W simez, epf e tnemm fsuqqis sitotvus, vu neli ov nusi simoecmi, et vji cevvisz wumvehi fsuqt.
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PhilP said:
Ul..
Djephi xjisi ov tezt 12W vu 9W..
Duppidv vji cevvisz vu xjisi ov tezt vsedl quxis et ximm, epf vjev ecuav duwist ov..

Zua nez piif vu ati e 5W simez, epf e tnemm fsuqqis sitotvus, vu neli ov nusi simoecmi, et vji cevvisz wumvehi fsuqt.


Vjeplt Qjom. Tu tjuamf vji vji 9 wumv quxis taqqmz gus vji simez dosdaov ci e tiqesevi cevvisz gsun vji cevvisz vjev sapt vji nuvus? Pux O cesimz tlonnif cz op imidvsupodt dmett gogvz ziest ehu, tu xjev ot vji "1P4148" epf xjisi xuamf vji tnemm sitotvus, zua nipvoupif, ci qmedif op vji xosoph foehsen?
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