PTO to Electric Pump 3pt hitch sprayer conversion. DIY works great!

[257Roberts]

Hello all. I got REALLY tired of replacing 3pt hitch PTO driven sprayer pumps. One year, maybe two and they were trash. Even flushing them out, buying stainless steel ones, nothing would last. Glyphosate (Roundup) is apparently very corrosive along with many other herbicides and fertilizers. New on the market are high-capacity 12v diaphragm pumps. I bought the largest one I could find, 7 GPM. My application (boomless BoomBuster nozzle) required 5 GPM so I figured it would work. It draws 20+ amps so I had to run a dedicated fused circuit to the sprayer from the battery to make sure it had sufficient power. Now no more trying to get PTO connected, clutching to get PTO engaged, getting hoses tangled in pump and best of all no more corroded pumps. The diaphragm pump only has plastic and rubber diaphragm touching the chemicals. A simple on-off switch kicks the pump on and off. All the other assorted pressure control hardware stays the same as the PTO pump. Instead of posting dozens of photos to describe the install, I uploaded a YouTube video which I have inserted the link to. Many thanks to the forum members on help with other Kubota problems, this is my way of hopefully giving back.

YouTube Diaphragm 3pt hitch sprayer

 

[Schmitty]

Interesting! My brother gifted me a sprayer with a dead pump, a 3.8 GPM HIGH FLO gold series. Maybe something like this would be more robust.

 

[MOOTS]

SprayerDepot are good people! Good looking setup too.

 

[hedgerow]

Hello all. I got REALLY tired of replacing 3pt hitch PTO driven sprayer pumps. One year, maybe two and they were trash. Even flushing them out, buying stainless steel ones, nothing would last. Glyphosate (Roundup) is apparently very corrosive along with many other herbicides and fertilizers. New on the market are high-capacity 12v diaphragm pumps. I bought the largest one I could find, 7 GPM. My application (boomless BoomBuster nozzle) required 5 GPM so I figured it would work. It draws 20+ amps so I had to run a dedicated fused circuit to the sprayer from the battery to make sure it had sufficient power. Now no more trying to get PTO connected, clutching to get PTO engaged, getting hoses tangled in pump and best of all no more corroded pumps. The diaphragm pump only has plastic and rubber diaphragm touching the chemicals. A simple on-off switch kicks the pump on and off. All the other assorted pressure control hardware stays the same as the PTO pump. Instead of posting dozens of photos to describe the install, I uploaded a YouTube video which I have inserted the link to. Many thanks to the forum members on help with other Kubota problems, this is my way of hopefully giving back.

YouTube Diaphragm 3pt hitch sprayer

I do a lot of spot spraying and smaller areas that spraying with my SP sprayer is a no go. I spray thousands of gallons of mix a year threw two smaller sprayers one is a 60 gallon and the other is a two hundred gallon. Both are used on my MX6000. I don't love PTO roller pumps either but I have never had any luck with the 12 volt diaphragm pumps. It would take two to even run my 200 gallon sprayer. The roller on my 200 gallon sprayer is ten plus year old and the one on the 60 gallon is seven years old. Both still running well. Hope the 12V diaphragm does what you need done and lasts.

 

[D2Cat]

Pumps for chemical spraying are always a challenge. I use a Belton Continental pump. It has brass (or bronze) gears, had capped grease fitting in 4 places to keep it lubed. I flush it with diesel when done. It's well over 10 years old. This a copy I found on the internet.