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Restoration & Repair Tips Board

Re: Running a 12 volt hydraulic pump on 6 volts????

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Posted by chevytaHOE5674 on December 15, 2012 at 09:17:22 from (

In Reply to: Running a 12 volt hydraulic pump on 6 volts???? posted by old on December 15, 2012 at 08:08:25:

old said: (quoted from post at 09:08:25 12/15/12)#1 Not all Hydro/electric units are the same and some draw a heck of a lot more amps then others.

#2 your unit has a weak motor so it draws way to many amps.

#3 The hyd oil you use is thicker then the units I have owned over the years

#1. He said it is an old Western unit. I happen to have 2 western plow pumps, both an old cable control unit and a newer solenoid control unit. They both draw between 180 and 200 measured amps. Guess what the instruction manuals for both advertise 180-200 amps as their max draw.

#2. One of my units has a new motor and the other is pretty new and still in great working order.

#3. Both units are running the manufacture spec'd ATF fluid.

Your applications are different than continuous snow plowing. The toter you probably lifted up the mobile home and then hauled it someplace thus having the motor running and charging the battery. The dump truck you probably dumped a load and then drove someplace to load it back up. Not sure why anybody would raise a dump bed or lift mobile homes continuously all day without charging a battery, just like nobody who plows snow would/could operate without charging the battery.

Come up north where it really snows and hop in a plow truck with somebody and count how many times they raise or angle the plow over the course of an afternoon. You would be surprised and how much you are using that pump and drawing those kinds of amps. There's a reason that most guys who plow run larger amp alternators and dual batteries. Sure you can raise it and angle it a few times on a full charge but not enough to finish your driveway.

Maybe down in Mo where you get maybe 20 inches of snow over the course of a season you could get away with it as you don't have to plow very much at all.

This post was edited by chevytaHOE5674 at 09:19:06 12/15/12 2 times.


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