Electric trailer landing jacks

I’ve been doing a little research about adding an electric motor to the landing jacks on my gooseneck trailer. Bulldog makes a kit to use with their jacks. A trailer dealer says he has added this unit to trailers with different brand jacks. The trailer has two single speed jacks. Does anybody have any experience with electric operated trailer landing gear. I can’t justify the expense of a hydraulic system. Thanks for any input
 
when I was still working, we had one on one of our trailers, the kit was not cheap (several years ago it was 400+), and they are so slow, I bet the one we installed didn't do better than 3 inches or so a minute, I wasn't impressed
 
I put one on my gooseneck a couple of years ago. It is slow, but no slower then doing it by hand. Single speed jack. Very happy with it.
 
A friend of mine built one using a Harbor Freight winch motor, a couple of sprockets and a piece of roller chain. I am not sure how he attached the sprocket to the winch motor.
 
Been thinking that it would easy to fabricate a system where I could use a cordless drill. Weld on say a 3/4 nut to the end of the shaft, and put a 3/4 socket on a 1/2 square drive. Could be used for both the main front jack and the two smaller loading jacks in the back.
 
Steve, I like your idea and think I will try to make an adapter to use my 1/2 inch battery impact. I only have one jack on my trailers and I never unhook them with a load on so I think that would work. It is just getting too hard for me to raise/lower them by hand at my age.
 
we used something similar to raise and lower a drawbridge when the main motors went out--1/2 inch drive 120v drill on to the main gearbox
 
Seen the same here. Guy in our pulling group built one from a winch for his trailer. I believe he just bored a sprocket to fit the winch drum and welded it on.
 
Dave, I think you and Steve might have several good ideas. Would a cordless 1/2 inch drill or cordless 1/2 impact be the better tool and would a drill/ impact have enough torque to run the jack (trailer not loaded)? I think I would try to fabricate a nut welded to an adapter I could bolt onto the jack shaft in place of the crank. That would allow me to unbolt the drill/impact adapter and bolt on the crank if needed.
 
On a two speed you might be able to run it on a drill, but I wouldn't bet on it. THe link will take you a a winch rework,cheap and pretty easy to do. I would work up a bicycle chain and sprocket reducer and then a drill. I use a Makita on the scissor jack on the camper,it can break a wrist if you do not hold on when it tops out. I want to put on on my 20 ft bumper pull, but the jack is worn out, so all at once a rework.
some ideas
 
I just hooked to my gooseneck that has 10 bales of hay on it. Just took a few minutes. It is hyd. Cost $800 worth every penny.

cvphoto78930.jpg
 
I have seen several trailers that came from the factory with hydraulic ramps but have never seen any conversions. Who manufactured your jack and ramp conversions?
 
The ramp conversion a local welding shop did it,I installed the jack conversion. Original jacks were 12000lb Bulldog.
 
My grandfather pulled a fifth wheel rv a bunch. He removed the crank from the jacks and put an adapter on and used a cordless drill. Worked flawlessly.
 

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