1850 Pump ideas

[woodlandfarms]

So probably to JJ on this, but.... I am wondering, as there are all of these ports on my 1850 pumps that are not used and look to be plugged, if I could tap into them and power a rear hydraulic cylinder or some such thing... Not needing to run PTO. Not wanting to tap into the front controls.

Any thoughts on this bad idea?

 

[MossRoad]

I would think that you'd probably want to tap into the same circuit that your joystick runs to power a rear hydraulic cylinder (or two).

 

[J_J]

Some pumps are setup to have a piggyback pump on the main pump for other hyd circuits.

You should be able to set up just about any hyd circuit to split the hyd path and run two separate attachments. My steering has a priority circuit and uses all the pump flow for steering, and when finished steering, the loader get all the pump fluid.

A pump outlet can be switched for different circuits, IE , a splitter or diverter.

A set of remotes can be added to add more circuits.

 

[MossRoad]

Woodlandfarms,
I don't know how yours is set up, but mine has the variable volume tram pump and a two section PTO pump. The tram pump only provides movement.

The two section PTO pump has one section that provides (as best I recall) 4GPM for the steering, loader and AUX PTO (the quick attach circuit). The second section is the main PTO and provides 8GPM to run attachments.

I think you need to identify your pumps, what they feed and what the plugged ports can do first. Then someone can come up with a circuit design for you.

Or you can call Terry at Power Trac and ask him how they plumbed the 3pt hitch or the backhoe on other units. He might shed some light on the way they did it. Could save you some work.

 

[woodlandfarms]

I guess what I was getting at is that on each pump, there are a whole bunch of outlets (inlets?) plugged up. Now maybe this is service, or maybe sensor, or maybe a spot to plumb some additional hoses. I guess I need to figure out what kind of pumps I have and DL a manual.

 

[J_J]

Carl,

What is the model number and manufacturer of your pump?

Can you show some pics of the pump.

I doubt they left some extra ports. However, sometimes they put two sets on input ports and output ports for convenience.

 

[woodlandfarms]

Next week I can get some pix. No idea of manufacturer and have not seen any identifying marks. Any idea where to look?

 

[J_J]

I have an Eaton VSP pump, and the number is stamped on the mounting flange.

http://www.google.com/url?sa=t&rct=...Toi7Bilz9MXlm9_YQ&sig2=WwwWvsZRMHFUJnWgFXhA8A

That is an Eaton PDF

 

[SpringHollow]

Here is a picture of part of the pumps.

Ken

 

[MossRoad]

That looks like the steering mechanism on top of the tramp pump, but I could very well be mistaken.

 

[SpringHollow]

i also have this picture:

It says Dunfoss and looks like S50....

 

[SpringHollow]

Laughs - That is just an upside down Danfoss. See this picture:

 

[SpringHollow]

Here is a better picture and then a close up of the purge port - you can see other allen plugs but they may be necessary for the manufacture of the pump or maybe some people install gages etc.

 

[MossRoad]

i also have this picture:

It says Dunfoss and looks like S50....

I think that's your main and aux PTO pumps.

 

[MossRoad]

Laughs - That is just an upside down Danfoss. See this picture:

That's the best picture.
It looks like you have a variable volume tramp pump with a two section PTO pump piggy backed onto it. The one closest to the camera is probably your steering, turning, FEL arms and AUX PTO for the quick attach cylinder. The second section with the larger hoses is probably your main PTO pump. The tram pump is behind that. The silver block to the right is your main PTO solenoid that is controlled by the switch on the dash.

All spculative, of course. :licking:

 

[MossRoad]

You can't feed hydraulic cylinders from the tram pump. You should feed them from the AUX pto circuit.

 

[MossRoad]

Did you get a hydraulic schematic with your 1850?

It should be easy to add remote cylinders on paper.... routing hoses is another matter. :laughing:

 

[woodlandfarms]

Wow, it is amazing I keep learing things on this website.

The first pump is PTO, the middle is steering and lift,and the one in the back is tram (wheel drive). I was wondering what was under those hex cover caps but from your guys notes it is Tram driven so the fluid coming out would be under control and not like the PTO (constant). A bummer but not a setback.

Back to finding a line to tap into. Pretty cool you guys had the answers and pictures and thanks Ken for posting yours up.

Carl

 

[SpringHollow]

Carl,

You might be able to use a setup like mine but Teeing off the aux. pump instead of where I did at the front of the tractor. But I would be concerned about loosing steering. Some sort of priority circuit would need to be setup. There is not much room in the tunnel to run additional lines back to the tub from the front.

 

[MossRoad]

I guess he has to decide how he wants to control the cylinder(s) at the rear of the tractor. I was thinking he could put an electric soleniod selector valve in the FEL circuit. That way with the push of a button he could choose to control either the FEL or the rear hydraulics with the same joystick valve. He would have to run hoses from the front of the tractor from the selector valve to the rear hydraulics through the tunnel and that could be a tight fit. I don't know as I don't have that model tractor. There could be plenty of room in the tunnel. That's the way I would do it if I were going to add rear hydraulics.

If you T'd off of the circuit at the pump you'd still have to install a valve somewhere within reach of the operator and as mentioned, you could lose steering if it weren't some sort of priority valve at the tee.