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snow plow wiring
I just picked up a used snow plow. It is a john deere plow with a small hydraulic pump and cylinder on it. The pump has a wiring connector plug-in containing 2 wires. Can someone tell me how to wire this up? Or have a picture with a diagram on it? Does the dealers carry this wiring harmess plus switch? Oh, it is going on a hpx. Thanks in advance.
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snow plow wiring
Ridetoslide,
The hydraulic pump is powered by the battery on your machine. There is a positive wire and a negative wire.
One wire goes to the power side of the switch, then to the positive terminal on your battery......usually the red wire. The other wire goes back to the ground.
It's super-easy to wire. You'll want to run the power wire first through a fuse, then to a switch, then out to the pump. The ground wire goes straight back to the machine's ground connection.
If you want to get a bit more fussy with this, you can tap into the accessory power wire on your ignition switch (I'd go this route), so as to prevent the plow from operating when the ignition key is off.
If you could provide us with the wire colors, we'll be able to help you. There is no need to have a wiring diagram.
Hope this helps.
Joel
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snow plow wiring
Thanks for the reply! I'll have to look at the wires in the morning but I'm almost sure neither of the wires that go to the female plug are red. Your method of wiring sounds pretty straight forward. On the pump outlet ports, it says UP and DN. Will the pump wired as you mention work or will I need some sort of 3 way rocker switch? Seems like I would need to power the pump one way for up, the other way for down. I would like to put the switch buy the headlight switch, is the dealer only place to get one that size, what about say radio shack? Sorry for more questions!
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snow plow wiring
Ridetoslide,
It sounds to me as though you have a bi-directional pump. In other words, fluid will flow out of of the pump in either clockwise or counter-clockwise pump rotation.
When the pump rotation changes direction, the fluid flows out from the other port. (out the "up" port in one direction......out the "down" port when spinning the opposite direction)
This is a very simple electrical circuit. You'll need a double pole - double throw switch. It is abbrevitated as DPDT.
For outdoor use, I highly suggest a good marine grade switch. They're a bit more expensive, but they sure are worth the investment. A marine grade switch will provide you with (not entirely waterproof) weather resistant operation. Rain, snow, dew, car washes.....these things will kill a cheap switch. Get yourself a good DPDT switch. I prefer the switches made by Blue Sea. (See Ebay Item Number: 190468904491)
You'll want a momentary switch. That is......when you press the switch to raise the plow, you'll be able to let off the switch to stop it. When you go to lower the plow, you'll depress the switch in the other direction until you've lowered the plow to the desired height, then simply let off the switch to kill the power. There is no power to the pump unless you have depressed the switch in one direction or the other........and only for as long as you depress the switch.
The switch I listed above will handle 20 amps of 12 volt DC power. That should be more than enough to run your little pump. Just be sure to use a heavier gauge wire to power your pump. Smaller gauge wires may not be able to handle the current. My wire chart suggests 16 gauge wire for a 20 Amp DC circuit......unless the run is especially long. If you go over 20 feet in length, use 14 gauge wire.
You'll want to use stranded wire for flexibility reasons.....allowing you to route it and bend it to follow the plow frame....etc.
Please see the wiring schematic I posted below. That will get you going.
If you have any further questions, please stop in again.
Joel
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snow plow wiring
Ridetoslide,
You probably have a pump that looks similar to the one I posted in the link below.
If it looks like yours, you're all set with the information I provided above.
Joel
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snow plow wiring
Is it the Powertach plow? If so I can take some pictures and try and get you a copy of the install manual for mine.
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snow plow wiring
My pump is similar but not exact to the one you linked. I found a picture of the plow if I can figure out how to show it or link to it. Looks like I need to find one of those switch's then it's off to the races! I'd like to put that switch in one of the blank spots next to the headlight switch. Are the sizes pretty standard?
http://www.machinefinder.com/images/machines/90/1482390/1759475_huge.jpg
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snow plow wiring
Bigknobbies, It is not a powertach plow. Wish it was though! Thanks for the offer of taking pictures! We just got a bunch of snow and of course high winds so I'd like to get this thing going.
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snow plow wiring
Ridetoslide,
Ok...the picture you posted shows a much larger pump than I thought it would have had. I don't believe a switch, by itself, will handle the current your pump motor will draw. You're going to need a relay.
Click on the link below. You'll see a set of reversing relays, contained in a housing, with a remote control attached to it. The relay assembly allows for current draw of up to 200 amps.
If that remote will work for you, you'll have a very easy job of providing power to the relay.
This might be a better choice for your application, and for only about 75 bucks to your door.
Joel
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snow plow wiring
Ridetoslide,
I'd really like to have the model number from the pump assembly. If I can come up with a match, I'll be able to provide a lot more information.
It's possible that you have a reversing solenoid on that pump......I just can't tell from the picture. If you have a reversing solenoid, we'll need to start all over on this project.
Joel
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