12V hydraulics for A/C G ?

llibsch · Aug 2, 2017

My son and I have converted an A/C G from gas to 48V DC. He wants to use the tractor for cultivating. The tractor had original hydraulics which we removed because the pump was leaking at the PTO and at the connection to the transmission and because hydraulic operation after electric conversion was slow and balky. Literature we found relating to the conversion stated that slow, balky hydraulic operation after electric conversion was common and that many had dealt with this by installing an electric hydraulic system. Equipment was not specified.
We hope to raise and lower the tractor's cultivating implement. We seek a practical solution as well as advice on what information we need to purchase an appropriate system. Advice from someone who has done such a conversion or has added 12 volt hydraulics to their tractor would be especially helpful.
Larry

Mike M · Aug 2, 2017

A self contained unit off a truck lift gate or a dump bed may be what you need ?

ldj · Aug 2, 2017

Well my $.02 worth is any electric motors to run anything where internal combustion engines have done for years just ain't gona work as good or as efficient as a internal combustion engine. For the folks that use pollution as a reason, just where do you think the electricity to charge them come from and what would we do with all the old batteries that go bad.

Roger in Iowa · Aug 2, 2017

Research electric actuators, like used on round balers by JD. They are 12 volt. No hydraulics.

Mike M · Aug 2, 2017

I was trying to figure out where you could mount all the batteries on a G and still have a place for the cultivators ?
Then I thought maybe he has a BIG extension cord and drags it around like the sludge haulers do the sludge hose ?

markct · Aug 2, 2017

How about a snowplow pump, most have
atleast one single acting function and
one double acting

Janicholson · Aug 2, 2017

I agree that until a substantial portion of the electricity is generated from renewables, the E tractor will polute more than using diesel, gasoilne, or LPG. In the US north west
the situation is about break even because of Hydro power.
There will be a time in which E tractors will be accepted. The UK just announced the phasing out of internal combustion cars for sale by 2025 (IIRC) But remember the country IS
130 Miles wide, and 3 times or so that long. Jim

llibsch · Aug 2, 2017

Thanks to all for advice and comments.
Regarding electric tractors, I'm not interested in a flame war bur respectfully submit the following:
The conversion of electricity to motion via an electric motor is much more efficient than via an internal combustion engine. No matter what fuel is used to produce the electricity, emissions are less from electric vehicles because of this efficiency. It also makes them cheaper to operate.
Lead from old lead/acid batteries is recycled into new batteries, not dumped into landfills.
Fewer moving parts makes electric vehicles more reliable.
Electric tractors are quiet and don't drop petrochemicals onto the soil from leaking oil and transmission fluid seals.
The auto industry is moving to electric vehicles as witness Tesla, GM Volt and Bolt, Nissan Leaf and Volvo's commitment to move to soon to produce only full electric cars. And virtually every auto company is making gas-electric hybrid vehicles.
Larry

circus · Aug 2, 2017

Truth is one gal of gasoline equal 33.4 Kw hours, so you'll need to use a ton of lead acid batteries, even then you'll need recharging like every 30 minutes.

steve706 · Aug 2, 2017

The phase out of gas and diesel powered vehicles in the UK is set to start in 2040 with the ban of all new vehicles powered by fossil fuels. The government still hasn't come up with what is to be done with regards to anything built before ban begins. France is also headed down the same road so to speak.

JD Seller · Aug 2, 2017

I have made several things with 12v hydraulics over the years. Rear lift gates use a 12v enclosed hydraulic system. Most have a valve that is power one direction and free flow the other. I just used the power direction plumbed into another valve for two way cylinder operation.

kevinthefixer · Aug 2, 2017

John Deere uses 12V-driven hydraulics in much of its turf control equipment, things like lift beds, or raising the drive head of a ground aerator. TBH, though, IMHO they've made a mess of every system I've had the honor of seeing, and unless you're independently wealthy, forget buying parts for anything green and yellow.

Geo-TH,In · Aug 3, 2017

Larry,
I never put 12v hydraulics on my tractor, but I love my 12v
dump trailer. It does require a lot of current, estimated 150
amps for 70 seconds to dump trailer. Close to same amps to put
bed back down in 50 seconds, no auto down.

I'm sure it wouldn't be so slow lifting cultivators. You would
use smaller cylinders and be faster. I have two large cylinders
and they travel about 4 ft.

I think I would want an alternator of tractor, generator may
not keep battery charged.

Let us know how well it works, be interesting to see it.
geo

kevinthefixer · Aug 3, 2017

What are you using for batteries, anyway? I would think LIION would be cost-prohibitive but lead-acid not powerful enough and too heavy.

PJH · Aug 3, 2017

The first thing I always noticed about an AC G was the skinny little tires.

IA Roy · Aug 3, 2017

Maybe you need to think about an old school
lift lever. Lots of implements were raised
and lowered by hand before hydraulics. Do
you have a 1 row or 2 row cultivator? Look
at horse drawn cultivators.

ss55 · Aug 3, 2017

What pressure did the original hydraulic system operate at? Your new system should at least match that pressure if not match the flow too.

David G · Aug 3, 2017

HP required = PSI * GPM / 1714, so 6 GPM @ 900 PSI = 3 HP

Do you have enough motor?

redtom · Aug 3, 2017

I did that on my AC G 25 yrs ago. It has a Meyers front snow blade narrowed and adapted to mount. Not power angle but uses the Meyers cyl to lift. I bought it from a photo for scrap price and when I got to get it the vultures had gotten the factory hyd pump. I used a 12 volt hyd unit from a walkie pallet jack. Its pretty much the same as a lift gate unit. It has one valve, power up and gravity down. It worked fine, had good speed, uses the same 12v batt that starts it with no problem. tank, pump and valve are self contained in one unit.

W_B · Aug 4, 2017

(quoted from post at 01:08:42 08/03/17) I have made several things with 12v hydraulics over the years. Rear lift gates use a 12v enclosed hydraulic system. Most have a valve that is power one direction and free flow the other. I just used the power direction plumbed into another valve for two way cylinder operation.

Never bet against Europe going all stupid. Several countries rushed into solar power until the realized what most sane people knew, it is expensive and unreliable, now going back to more traditional sources. Until battery technology catches up with the dreams, battery transportation isn't practical.

Determined · Aug 4, 2017

I needed an extra hydraulic circuit to run the cylinder for a grapple I installed on a tractor bucket.

I had a 12 volt electric over hydraulic power pack from a delivery truck tailgate in the shed.

Bolted it on and ran wires with a 2 position momentary switch mounted up by the hydraulic controls.

I could use it all day loading bales and it worked well.

If all you are trying to do is an occasional lift or lower it should work fine for you.

kevinstuff · Aug 4, 2017

Fork lifts have battery powerd pumps
Not sure of voltage , I am thinking forklift
Or pallet type lifts have 36 volts? Or maybe
Higher , miight be able to connect to your
48 volt system? Just an idea

kevinthefixer · Aug 4, 2017

(quoted from post at 17:27:14 08/04/17) Fork lifts have battery powerd pumps
Not sure of voltage , I am thinking forklift
Or pallet type lifts have 36 volts? Or maybe
Higher , miight be able to connect to your
48 volt system? Just an idea

Excellent thought. Our shop forklift is a very old Clark, and it's 36V, but I'd be willing to bet the newer ones are 48V.

Dusty MI · Aug 5, 2017

Not all A.C. G's had hydraulics. So yes there are hand lift cultivators for The G.

Also maybe use a linear electric motor in place of the hydraulic cylinder.

Dusty

kevinthefixer · Aug 6, 2017

(quoted from post at 20:32:01 08/05/17) Not all A.C. G's had hydraulics. So yes there are hand lift cultivators for The G.

Also maybe use a linear electric motor in place of the hydraulic cylinder.

Dusty

Maybe adapt a trailer tongue jack?

buickanddeere · Aug 7, 2017

(quoted from post at 07:42:32 08/04/17)

(quoted from post at 01:08:42 08/03/17) I have made several things with 12v hydraulics over the years. Rear lift gates use a 12v enclosed hydraulic system. Most have a valve that is power one direction and free flow the other. I just used the power direction plumbed into another valve for two way cylinder operation.

Click to expand...

Never bet against Europe going all stupid. Several countries rushed into solar power until the realized what most sane people knew, it is expensive and unreliable, now going back to more traditional sources. Until battery technology catches up with the dreams, battery transportation isn't practical.

Unless the Almighty adds some new elements to the Periodic Table . There are no new batteries with increased energy density. Lithium is as good as it gets .

12V hydraulics for A/C G ?

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