Live Hydraulic conversion for an H???

I have a resevour and valve bodies, and even a generic 12 GPM 3000 psi pump... but coming up with a good way to drive it is questionable.

This old H has an old Freeman loader on it, but the 650 psi belly pump and old syle pipe in pipe cyinders do not give enough capacity.... not to mention thr trip bucket and the pain of dead hydraulics everytime you push the clutch in. I clean the barn with it... but its a pain...

(FYI, if I do use this pump with the old cylinders I'll limit it to 1200 psi).

Money for a different tractor is not an option... so no sense in going there.

Thanks.

I hadn't thought of the crank pin hole use with a roller pin... tractor didn't come to me with a crank anyway. I'll be looking into both.

But keep talking... this is good stuff.

Thanks
Dave
Hillsboro

I've though hard about belt drive... in fact I even planning to shaft it back along side the block and tuck the pump in almost entirely under the gas tank. In fact I've built most of it... but still need keyways cut. Most of those style pump bearing are not designed for lateral loads only axialary... This way a bearing block and rollers are carrying the belts lateral forces.

I never did figure out a good way to attach a second seive to the original "crank pulley". Did you weld that one? I looked at a original that was already off... just didnt seam heavy enough to be cast steel... thought it iron... which makes it hard to weld. Maybe I was wrong on this?????

I've also thought of a way to hard mount the pump's drive (shaft) pulley in line with the water pump... and use the water pump variable as the tightener. But then you have a three point belt system with only 1/3 diameter contact area on any one sieve. Since this is a high load, high tensioned belt though I'd be asking for trouble with slipage and on the water pump's bearing... so didn't do that.

With the pump back and low and a box type resevior under the seat using a super H seat frame, it would make a clean installation.

Just havn't figured out a good way to drive it... even looked into a cogged belt... but not enough clearance in front of the original crank pully to add a 1" wide cogged belt (pulley is about 1.25").

Even thought about modifying the waterpump shaft for cog... but its bearing is still the limiter there.

So.. as yet... its not finished. Just a pile of unused parts.

What ever I do I'll take pictures.

But I'd like to know more about what you did on the crank pulley modification.

Thanks
Dave
Hillsboro, OH

Keep in mind that I can no longer crank start this tractor - there is no pin for the crank mechanism to engage.

I use a "B" width/section belt to drive the pump and I ordered a pump that is specifically designed for the side load of being belt driven (about $180). I get about 15 GPM at full throttle, which is plenty to run my power steering and raise/lower the mower.

I had to add on an oil cooler because the belly pump reservoir doesn't hold enough fluid to keep the temps down. I would still like to add another 3 or 4 gallons of fluid capacity some day.

A good welding shop can weld an extra pulley to your crank pulley. But beware that the keyway is going to carry the load. My system has a roll pin carrying the load.

I thought about modifying the front bolster to allow room inside it for a direct drive pump, but just didn't have the means at the time to make it work. In the future, I might still do that. :o)

If anyone has questions, my email is open...

You should be aware that the IH distributor flange has a SAE #2 layout. That same standard is also used on many hydaulic pumps. You would need to find a pump with the flange on both sides so that the distributor could attach. I believe this is how one of the aftermarket tractor pumps is arranged. The other arrangement is similar to the IH live pump but has the correct bolt spacing for the tractor it fits.

I have all this stuff and I am thinking about running two pumps in front of the magneto just for laughs. It will require relocating the oil filter and crankcase ventilation pipe.