Leimbach pump motor options?
I am working on a Wedico Loader that needs a new pump motor and I am wondering what my options are?
Has anyone put a brushless motor on one? If I get another brushed motor is there an aftermarket one that is better than the one from leimbach? |
Re: Leimbach pump motor options?
I believe the motor Leimbach is using now is Johnson.
At one time many europeans were replacing this motor with one from Faulhaber, which had a much greater efficiency & drew less amperage. I don't recall the part#, but I do remember it being a couple hundred $ item. What's wrong with current motor? Is the pump seeping oil into it? |
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I don't believe there is a leak or problem with the pump or the lines just oil mistakenly spilled onto it first during shipping and then second from filling it. Because I pulled the fried motor out and it was nice and dry inside where the coupler is which I was happy to see. I would think that someone would have found a nice aftermarket brushless motor system that would work nice but, I couldn't really find anything via google. |
Re: Leimbach pump motor options?
Odd as it sounds, I saw at least one guy running a stock Tamiya silver can on his Stahl bucket dozer's pump. Same thing happened to his motor. Oil got inside it, and shorted it out. If it works good, and it looked like it did, from the videos he posted, it'd be a nice, cheap option. Sorry I really can't offer any help on finding a brushless motor. I always thought most brushless motors, driving pumps, had remote mounted motor plates and ran a belt drive to the pump, via sprockets?
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Hmm, I wonder then, if that guy ran the pump on 7.2 volts? Stock silver cans are 27 turn motors, so maybe a 45 or 55 turn would be perfect?
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I have been runnig a LRP Trukpuller 2 7,2 volt at 12 v in a stahl excavator
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i ran a holmes hobbies crawlmaster sport outrunner on my leimbach pump. it was completely bolt on. It was a little fast with a 950kv rating, but that's easy to dial down with a simple airplane speed controller.
I've since swapped to a tiny outrunner it's only half an inch long and spins a little slower than the crawlmaster. So far no problems, but the machine hasn't seen much use. I'll snap a picture when i can. It's comically small. |
Re: Leimbach pump motor options?
do you have a link to that motor and does it bolt up same as stock motor
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Re: Leimbach pump motor options?
This one will bolt up without any mods, although it will spin a little faster that the one i used before.
I can't remember the specs on this little guy, but it needed a custom adapter plate and i had to cut another motor coupler to accept the 2 mm shaft. http://i6.photobucket.com/albums/y23...loutrunner.jpg |
Re: Leimbach pump motor options?
Well, the rc4wd 80T motor works nice. It only pulls .5 amps at 8.3 volts and 190 psi.
I ran for an hour and 15 minutes on one charge so, that is pretty good. That was running it almost non-stop though so, maybe 1 1/2 hours or more if resting between loading trucks. The motor sits at about 90 degrees and the esc sits at about 96 degrees.:-) Video of current draw with the pump running constantly: http://www.youtube.com/watch?v=BaeCC...1&feature=plcp Video with DX7s and mixing on the hydraulic functions: http://www.youtube.com/watch?list=UU...ture=endscreen |
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fantastic result.. and the bucket and boom move a lot quicker now.
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http://www.youtube.com/watch?v=ZoK_a...vX_EuC2dhah0mM |
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Great video. Seems like you found a winner there. Amp draw seems very reasonable!
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Re: Leimbach pump motor options?
Well done Scott. :cool:
My 922 is the only one I ever put a guage on & I set the press to 15bar (210psi). The older two hoes, the press could have been higher, I had an amp meter wired in thru the plug... cyls moving - 1.1, no movement - 2.1amp. Your due dillengence has paid off & benifited all of us. Thank you. :cool: |
Re: Leimbach pump motor options?
that motor seems to be working better then I experienced with mine. I wounder if my pump is out of wack.
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