Narrow Frame Hydraulic Options
 

Hey guys I'm looking to pick some of your brains!
I've got my 147 that I'm currently building up the motor and I'm going to sell the electric lift and install hydraulics. I've been trying to decide what kind of a pump I want to use to power the hydraulics. I was reading a thread on here somewhere where Cadplans suggested to someone to "hang a gear pump off the output shaft of the charge pump". So a quick Google search turned up a picture of just that and a thread that had a lot of posts dealing with everything but that subject.

What I'd like to know is if this is indeed possible and what does it entail? I don't recall seeing any posts in recent memory of this being done but that doesn't mean that is hasn't.

I've got a hydraulic pump that would be perfect for this if it were possible.

Thanks guys.

Curt

It would be easier to change to a ported hydro pump and make the rest.

The starter may have problems turning over a engine and 2 hydraulic pumps.

Easier in some respects yes, and that is still a viable option. See the pump that i have is a two stage that is more than capable of running a splitter which is one accessory that i'd love to build and power it with the tractor. I would just run that pump via the pulley for the OE hydraulic system however that style pump needs to be mounted inline as the needle bearings for the input shaft can not handle the side load.

That being said, I don't "need" to run a splitter off of the tractor, but i'd "love" to do so, and I already have the pump. For all the money I'm putting into this machine it'd be nice to save a few dollars and have something do double duty.

A ported hydro is still an option in my mind, but that is obviously limited in the attachments/accessories I can run with it.

Hydraulic pump
 

For many years on my home built tractor i used a power steering pump from a ford pickup or car that had a metal oil tank, takes very little power, will produce up to 1,000psi, belt drive, need the small oil cooler to keep oil temp down. That is used to replace the electric lift, will not be good for a log splitter.

IHinIN I think that is who it was had a thread about doing that on his 105 or 100 I think it was and that is a very good possibility for my tractor as well.

CadPlans had mentioned this idea about using the charge pump output shaft and the idea was never discussed or fleshed out further. I'm hoping we can do that here. If it was viable I'd give it a shot.

Curt

Its a viable option yes. What do you want to discuss? Do you know anything about hydraulics? If you do, there shouldn't be many questions... Can you even access the rear hydro shaft? Or is the tin-work in the way? There's other issues with this idea. Reservoir, system relief, what do you do with the pump when not in use.......

A ported pump probably wouldn't run a log splitter well. Not enough oil in the reservoir for one. As big as a splitter cylinder is, the pressure probably wouldn't be an issue. Power steering pump, same issue. Not enough oil. Your best bet, use a tiller gearbox turned 90 degrees as a PTO and power a pump off that. It can be direct coupled that way and easily removed. We can discuss this more if the idea interests you.

i am familiar with hydraulics yes. I'm less familiar with the charge pump/hydro on this machine. I've just never seen it done this way before. I'm curious as to why its not a more popular option. What are the difficulties with doing it that way? For the pump I'd like to use it seems like an elegent solution. Does anyone have pictures? What modifications need to be made to the charge pump?

Curt

What are you talking about? Never seen what done what way? Be more specific please.

Sorry I guess that made more sense in my brain than on screen. What I meant was I've never seen anything hooked up to or run off of the charge pump output shaft. I'd like to discuss the pros/cons & how to do that. Look at pictures of that if someone has done it before.

Curt

Well as far as I can see you have to do 1 of 2 things, either run a shaft out past the back of the rear so it will line up, or perhaps a small sprocket to raise it up and chain drive it, then you have fender clearance issues. You can see the lack of clearance on the shaft in this pic. Really it might be more realistic IMHO to have a new pulley made and run it off the back of the engine.:bigthink:
http://www.ihcubcadet.com/forum/messages/106/64775.jpg