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Tom, I don't think this is really the deciding issue for
whether you should commit to an Alltrax conversion. There seem to be
numerous candidates for replacement relays, and you'll still need one to
implement the PTO return-to-off safety circuit which Alltrax doesn't show on
their install schematic (but see http://www.elec-trak.com/forum/showthread.php?t=72 for how I did it). I haven't gotten
around to installing the one I got from Surplus Center -just in case- but I'm
satisfied from its specs that it will work.
Alternatively if you want to bypass this safety
circuit like Alltrax implied is OK, you can get by with only one of this style
relay in your ET. So if one of your OEM units fails, you can bypass the
PTO RTN circuit and continue with the good relay in the other
circuit.
Having said that, I am still a big fan of the
Alltrax unit. It does basically drop in to the E15 with no significant
mods save whatever changes you decide to make to access the 0-5K
pot.
Joel
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