12-volt implements on 6-volt system

However, I would like to use 12-volt implements - for example an electric winch and a sand spreader on the 3 pt.

Any one know of a relatively easy way to use the 6-volt system to produce the appropriate watt-age at 12 volts for these types of applications?

Thanks in advance.

Well, no one but my next door neighbor. Grin.

Mark

Mark

Case in point, 24 volt starting systems on JD tractors. Uses 2 12v batteries, one connected + and the other -, then you get your addition.

Mark

I ran my Chrysler M-47 marine engine on 6v positive ground for 12 years. About year two I decided that 6v bilge pumps were not the way to go so I cast about for a 12v supply. The solution was a small GM Delco alternator with a self-contained voltage regulator. I hung it off an oak gas tank frame in the bilge of the boat, run off a Ford 302 fan pulley bolted on under the crank fitting on the engine.

It wouldn't work until I put a ballast resistor on a switch to produce an initial drain on the alternator, but then it worked great, giving me 45 to 60 amps at startup, and steady power the rest of the time.

About ten years ago the 6 volt generator got drowned by a 6" rise in water level while she was sitting in the slings, so we converted all the way to 12v with excellent results. It took a new coil, a ballast resistor on the distributor, and new bulbs in the lights, and of course reversed polarity to the 12v negative ground.

I'm on about the third alternator now in twenty years, but the boat starts and runs much more reliably than she did with the 6v.

Convert the tractor to 12 Volts.

You have to decide, "antique show tractor", or a modernized tractor that's usable in today's world.

You could mount a 12 Volt 1-wire alternator, connect it to the existing generator output wire, jumper the BATT and GEN wires together at the regulator, and add an ignition resistor, and a couple of other small details, and you'd be all set.

Then keep the generator, and it would be a minor thing to convert it back to "parade queen" status, if you'd ever decide to.

I considered suggesting a "stealth" conversion, where you'd have the generator rebuilt to produce 12 Volts, but for the loads you want to power, an alternator would be a MUCH better choice!

Look at it this way. You are asking if you could run your 220V house AC on a 110V plug. It just does not work.

Now if you had a 6V winch and a 12V tractor we could make that work with resistors.

So do you want the winch; or do you want 6V's?????

A winch is a work device. Work means HP. HP means Watts. At 6 V, watts means lotta amps.

Let's say I have a 2 hp winch and use it to it's 2 hp capacity. I realize the way you are tuggin on your load helps determine how fast it will move a given distance for a given hp but:

2 hp @741 watts/hp = 1482 watts (forget losses for the calc. Would just make it worse.)

So dividing watts by voltage, we get 1482/6 = 247 amperes.

Now to start your n you only need 100 amperes or so. So you are asking of your electrical system bout 2.5 times what you ask of it to crank your engine (couple of seconds to do that) and ask for it for as long as you are winching the load.

Get the Fire Truck something is gonna be on fire!!!

Mark

Mark