Maximum Amps For Electric Attachments?

[jc7622]

Does anyone know if it is possible to use the electrics on a 5740C to power an electric 12V DC motor? And if so, what is the max amps that I could have at my disposal?

I am building an airblast sprayer and need smoe way to power the air fan that will blow the air. I have found an auxillary cooling fan that can supply the necessary CFM but didn't know about the electrical compatibility.

 

[montanaman]

The charging system is rated at 50 amps. It will depend a lot on what you are running as to how many amps you will have to spare.

I would think that if you are talking about using a cooling fan designed for a car, it shouldn't pull too many amps but you could always do an amp draw test on it to be sure.

Ken

 

[Fredex]

Why not power the blower of the air blast sprayer from the pto? Mine has a short shaft riding 2 saddle bearings with a double-V pulley between them; 2 belts to a smaller pulley on the blower shaft. The pto w/ 2 u-joints connects to the front of the fixed shaft and the chemical pump is hooked to the rear. Only thing electric on my sprayer is a solenoid operated shutoff valve to the nozzles which draws 1.7 amps.

Fred

 

[jc7622]

Thanks for the reply. I looked at your profile and see that you are a winemaker. That is awesome. Missouri has a great wine industry. I have been to some of the field days at Mountain Grove. I have a small vineyard (2 acres) planted now going into the second leaf. I have 1400 more vines coming in april.

You are right that powering it off the PTO would be the best choice. I was being mentally lazy because I planned to use a roller pump on the PTO. I gues I could still attach a roller pump to an extension off the back end of the shaft.

What brand sprayer do you have? Do you like it?

 

[Fredex]

Hi John. Yes, MO has a good wine industry across the state; mostly small but some larger. I only grow one acre, mostly Vignole variety. That's more than I need for my hobby but sale of grapes helps pay for it.

I was planning to build a sprayer also but ran across a deal. I have a small, 30 gallon, unit made by Automatic Equipment Mfg Co in Pender, NE. They have since sold their sprayer line to Spray Innovations, Inc in Columbus, NE. Swihart Sales Co. in Quinter, KS is a dealer for them. If it isn't too far you might drive up there, take a look, and get some ideas. They also have some pics on their web site.

I sprayed for some years with a hand held wand (spot sprayer). We're not really big enough to warrant the money for a new, or even used, blower from a dealer. Ran across this one a few years old but unused sitting in a shed at an orchard for $650.00. I love it. Even though it only covers one side at a time, I cut my spraying time by 2/3 and chemical costs by half. Mine is built so that I can spray to the left side, or right side (not both) by turning the blower over 180 degrees. Let's me adjust for wind conditions - keep the spray on the vines instead of me. The blower is a 12 x 12 (approx) squirrel cage like a furnace blower; pump is 6 roller. Also has an electric solenoid operated shutoff in the hose to the spray nozzles with the switch cabled up to the tractor seat. When off the pump pressure is relived through the regulator bypass and tank agitator.

About mounting the roller pump: Mine is coupled to the back of the shaft. You could also mount the pump off the the side and power it through a second set of pulleys and belt. Choice would depend upon physical layout - space availability, etc.

 

[Fredex]

Another thought, John. If construction gets too tedious and/or you want to explore the combined pto - electric concept, I would recommend using pto on the blower and put the electric on the chemical pump. They make 12V diaphragm pumps that are a bit larger in capacity than those on spot sprayers that only draw 5-7 amps. Tank agitation wouldn't be as good as with the roller pump unless you used 2 electrics. Then cost becomes a factor. Or us one and stop accasionally to manually stir up the tank.

Fred