Put a loader on my H - it wont lift?

So I finally found my dream loader (sounds retarded, but when I was 4 years old or so my Uncle had a Stan-Hoist loader on his H, and he pulled it off and scraped it when the arms went bad, but ever since I was that little I've always wanted one like it for my H) and I finally found one last summer that came off an H that had been sitting for about 5 years. Well today I finally got around to putting it on my H (what a PITA that was by myself) and hooked the hydrualic lines up, and fired it up, went to raise it and nothing. The tractor didn't really bog down much or go under a load when I pulled back on the lever like I had remembered from when I was a little kid, so I checked the fluid, and it was barely registering on the dipstick. So I filled the pump up with hydraulic oil until it read full on the dipstick, and tried it again, and still nothing. Do you think the hydraulics on the tractor are just bad, or do you think the cylinders on the loader could be frozen from sitting for so long? Tonight when I get off work I'm going to try to hook the lines up to my M, and just see if the loader will raise with that (I know the hydraulics are good on it, I use a back blade with it) but as I sit here at work I'm just hoping it's the hydraulic pump on the H, and not the loader. Thoughts? Thanks!

That H only has a 6 quart tank; not nearly enough to run a loader.

You'll need another larger tank. Most loaders will need about 3 gallon.

Don't know about your pump.

Allan

From my perspective if the cylinder(s) were froze up somehow that would be putting a heavy load on the system and it would likely be obvious. Loaders I use around here let you know it when they are trying to lift something that won't budge. Listen to Allan...he has a nice Farmhand loader setup on a similar tractor and what he is saying makes sense.

(quoted from post at 15:53:31 05/20/10) That H only has a 6 quart tank; not nearly enough to run a loader.

You'll need another larger tank. Most loaders will need about 3 gallon.

Don't know about your pump.

Allan

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This is the same exact kind of loader my Dad had on his H, so I thought it would be fine. It took close to 2 gallons of hydraulic fluid to read full on the dipstick?

I've seen lot's of Hs with loaders over the years that didn't have extra hyd tanks & worked fine. Growing up we had a '41 H that had a Schwartz dual cylinder cable lift loader. Tracor was settup with live hyds & used the old belly pump for a reservoir, internal pump still inside. We feed 3-400 head of feeder calves daily from the time the tractor was new til the early '60s using that H & loader to load silage from a bunk into chuckwagons. Also loaded lime, fertilizer & gravel with it into IH KB6 truck with Gallion gravel bed. Tractor & loader was pretty much wore out when I got rid of it in the early '70s but before getting rid of it I took the live pump & belly pump off and swapped into another H that didn't have live hyds. That old wore out pump was able to lift a 15' Brillion cultimulcher I put together in the early '80s

when I put a loader on my H it was real slow. Have you pulled the lever out and held it? Mine maybe took 30 seconds or so before it would move. If it sits for a while it is still slow till I use it some.

The IH loaders used the far end of the one-way cylinders as additional reservoir. It wouldn't be obvious if you don't look closely.

The reason for the delay is you are using the wrong port. If I remember right one port is instant pressure and the other one is delayed pressure. It has to do with lifting a cultivator or something of the sort. Please correct me if I'm wrong so we can all learn!

I see a hose going into the lowest round tubular
piece at the back of the rig, but can't see how that would apply a lifting force. Guess I am missing something.

First of all if your reservoir has oil in it, it should lift the loader until it runs out of oil to the pump. If it takes more than the reservoir holds to get it to go all the way up, it will just go as far as the oil is there to the pump.

If you do not have access to a gauge to put on the outlet of the pump you can put the plugs in the outlets and pull the lever like you would do to raise the loader. It should make the motor work a little bit, as the oil has nowhere to go and put a back pressure on the pump.

If it does not work the motor, check first to see if the drive coupling is there between the pump and the transmission. If the pump is turning but you have no pressure, the problem would be inside the pump.

All 3 outlets are equal flow, so it does not matter which one or ones that you plumb into.

hey now that is sharp!!!!....i have that exact stanhoist loader on my '42 M. I have a line that connects to both cylinders with a T and a single line going to the rear port on the lest side (clutch side). I havn't had a problem running it hard with what the reservoir holds no problem. I can lift it up enough to dump brush ect over the sides of a grain truck...i'd try lifting the cylinders with something to see if they will even budge first, just my idea.....have fun with that straight loader!!!

If the cylinders were frozen, the tractor would snort and you'd hear a squealing noise coming from the belly pump as the relief valve kicked in.

6 quarts is "close to 2 gallons" so your hydraulics were almost empty.

As-is you should get SOMETHING if the hydraulics are working.

Were you holding the clutch pedal down? Don't do that.

Where are the hoses plugged in? Each cylinder should connect to its own port. Front port on the left side, and the only port on the right.

First thing to check if none of that helps is the drive dog on the belly pump. You gotta pull the access cover and shine a light up into the belly of the tractor. Make sure someone didn't remove it. If it's gone, it's gone for a reason, probably because the hydraulic pump leaked or didn't work.

i'd try lifting the cylinders with something to see if they will even budge first, just my idea.....have fun with that straight loader!!!

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Well, as of now I'd say it's safe to say the cylinders are rusted and that's why the loader wont lift. I put a jack under the front of the loader to try to break the cylinders free manually, and it lifted the whole front of the tractor up. I left it hanging in hopes of the weight breaking it free over night tonight.

I feel it is not getting oil to the cylinders. If you were getting oil to the cylinders, the pump was putting out, and the relief valve was cracking at the proper setpoint you would know it. Either the tractor engine would labor or the loader would lift. If neither is happening, you either have a bad pump/relief valve or no oil to the loader circuit/too little oil in the circuit. 6 quarts for a H is not much. You may have to keep adding oil to the system to fill the cylinders?

Keep us posted.

CT