Hydraulic pump and motor questions

[jas67]

I have a vertical shaft engine.
Can a hydraulic pump be mounted vertically to this engine.
Should it be direct driven or can it be belt driven.

I have a 46 inch mower deck.
What size hydraulic motor would it take to run it.

And finally, I want to mount this all on a frame
and use a hydraulic motor to propel it.
What should the specs be on this motor.

If you haven't guessed already I'm thinking of building
a riding lawn mower with everything powered hydraulically.

My big question for now is, can a hydraulic pump be mounted vertically.

Thanks.

Pooh Bear

Find your self a Case 44x series tractor (442,444,446,448), or one of the newer series 40xx.

These are fully hydraulically driven with hydraulically implements. They can also probably be had for less than it will cost to build one.

 

[J_J]

Pooh_Bear,

Just how serious are you about the hydraulic driven machine? There is a whole lot to think about. Which end are you going to start from? If you start with the engine, the HP available will determine the pump or pumps that you use, and that will determine the size of the motor, and what the deck size will be, and how many blades, etc. . You really need variable speed pump, and hydraulic motors, or a hydrostatic transmission, and wheel assemblies. Filters, reservoir, fluids. Maybe brakes. It would probably be easier to modify something. There are thousands of hydrostatic tractors out there, but very few have a hydraulic driven deck. A hydraulic motor increases the cost of the deck about $200.00.

If you start with a certain size deck in mind, then you have to compute the required HP to drive the deck, and that will determine the size of the hyd motor, and back that up some more to the pump size, then to the engine, plus the Hp necessary to drive the machine. Consider the size of the tires/rims. If you can hunt down all the parts, you can build one for about 1/2 of a new machine. If you are a good scrounger, the cost would be less than that.

The adapter below is what you would use to mount a pump to a motor, and can be used horizontally or vertical.

 

[Pooh_Bear]

What I've got is an MTD lawn tractor with a good 20 hp engine and a 46 inch deck and a broken rear axle. I could look for another axle to replace the broken one. But I was thinking, why not make a machine that is more useful. Something a little bigger and that I could put a small FEL on it to load dirt on a trailer.

I was just thinking and dreaming.
Probably just find a good used lawn tractor and buy that.
That's shaping up to be the cheapest of the options.

Pooh Bear

 

[dodge85rc]

An MTD lawn mower will never stand to have a loader put on it. It will break in 1/2.

 

[Pooh_Bear]

That's why I was thinking of building something beefier.

Probably just get a used lawn tractor to mow where the 8N can't
and keep saving for a bigger tractor with a FEL already on it.

I've got another similar mower but it only has a 12.5 hp motor on it.
The 12.5 hp motor is bad. Wonder if the 20 hp motor will fit.
Another thing to add to my to-do list.

Thanks.

Pooh Bear

 

[Kernopelli]

When you say you broke the rear axle, I assume it is the transaxle that is broken? If so, you may want to look at surpluscenter.com they have a number of inexpensive transaxles that may work.