Power steering, B7100d

[IdahoNative]

I read several post about adding PS. I have a few questions…

What are the viable options for the Hydraulic power source?

Can I use the FEL controller power beyond port to power the cylinder?

What does the hydraulic plumbing schematic look like?

Any input is appreciated.

 

[North Idaho Wolfman]

Yes you could do that.
Simple in and back out to where you came from if your going to do hydrostatic steering controller
It's just a loop.

 

[Thunder Fish]

I read several post about adding PS. I have a few questions…

What are the viable options for the Hydraulic power source?

Can I use the FEL controller power beyond port to power the cylinder?

What does the hydraulic plumbing schematic look like?

Any input is appreciated.

Also look online about adding electric power steering,I have just started to look at this my self.

 

[IdahoNative]

Is there a hydrostatic steering valve that you recommend?

If I understand correctly my hose loop schematic is from the FEL PB port (which currently dumps into the reservoir I think), to the PS valve, to the cylinder, out of the cylinder to the reservoir…am I close?

 

[Russell King]

Is there a hydrostatic steering valve that you recommend?

If I understand correctly my hose loop schematic is from the FEL PB port (which currently dumps into the reservoir I think), to the PS valve, to the cylinder, out of the cylinder to the reservoir…am I close?

The PB out of the FEL valve goes to the three point hitch valve (P in) then the sump.

So you need to eventually provide power from the pump through the valves back to the three point hitch. You also need to be concerned about the priority for steering over lifting. There may be a priority valve involved or the steering is first in the string so that steering is always the highest priority. Read about and then think about how that will impact your decisions. (I have no idea about how that priority is needed for your steering system and it might be inconsequential for you.)

 

[North Idaho Wolfman]

The PB out of the FEL valve goes to the three point hitch valve (P in) then the sump.

So you need to eventually provide power from the pump through the valves back to the three point hitch. You also need to be concerned about the priority for steering over lifting. There may be a priority valve involved or the steering is first in the string so that steering is always the highest priority. Read about and then think about how that will impact your decisions. (I have no idea about how that priority is needed for your steering system and it might be inconsequential for you.)

I don't think it's that way on his as I think his FEL is a separate pump than the tractor pump.

But could be wrong.

I would tap into the feed for the three point.
It's harder to do on a D as there is no tap plate like the HST's.
But the reason this is a better option is then you really don't need to worry about aa priority valve as the on board pump is not doing a lot of work to begin with.

 

[North Idaho Wolfman]

Is there a hydrostatic steering valve that you recommend?

If I understand correctly my hose loop schematic is from the FEL PB port (which currently dumps into the reservoir I think), to the PS valve, to the cylinder, out of the cylinder to the reservoir…am I close?

Do you want to fabricate all the parts or do you want it sort of in kit form?

This is one example:

https://www.amazon.com/Generic-Offroad-Orbital-Steering-Column/dp/B0CRCVWKCX/ref=asc_df_B0CRCVWKCX?mcid=5f75cd1080023f34aa23d68fe21c11a0&hvocijid=6360074418510345184-B0CRCVWKCX-&hvexpln=73&tag=hyprod-20&linkCode=df0&hvadid=730312820598&hvpos=&hvnetw=g&hvrand=6360074418510345184&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1027744&hvtargid=pla-2281435177418&psc=1

 

[IdahoNative]

I don't think it's that way on his as I think his FEL is a separate pump than the tractor pump.

But could be wrong.

I would tap into the feed for the three point.
It's harder to do on a D as there is no tap plate like the HST's.
But the reason this is a better option is then you really don't need to worry about aa priority valve as the on board pump is not doing a lot of work to begin with.

like this? The red linework is the proposed new lines. The rest is the current plumbing

 

[North Idaho Wolfman]

IS this a DT or HST
Or better question does it have a Hydraulic tap block on the right side of the bell housing?

Let me confirm that the FEL is running off the hydraulic pump, behind the fuel injection pump, on the side of the engine?

Close no cigar on the plumbing
This will be the right way:
You can have the FEL control before or after the PS, you just need to keep the loop of P to PB to P to PB.

 

[barts]

I'd also be inclined to divert the flow from the pump first to the power steering control valve and then to the loader to insure that the power steering works when lifting the bucket. Of course, a cheaper solution is more arm days in the gym

 

[torch]

I'd also be inclined to divert the flow from the pump first to the power steering control valve and then to the loader to insure that the power steering works when lifting the bucket. Of course, a cheaper solution is more arm days in the gym

Without a priority valve, both can't be done at once. The priority valve ensures a minimum flow is available to the steering at all times. A PB valve cuts off anything downstream completely while the upstream device is in operation.

 

[torch]

It's harder to do on a D as there is no tap plate like the HST's.

I believe it is a year of manufacture thing, not a model specific thing. Early B7100's did not have a hydraulic block but I believe all the later ones did, HST or no.

 

[IdahoNative]

IS this a DT or HST
Or better question does it have a Hydraulic tap block on the right side of the bell housing?

Let me confirm that the FEL is running off the hydraulic pump, behind the fuel injection pump, on the side of the engine?

Close no cigar on the plumbing
This will be the right way:
You can have the FEL control before or after the PS, you just need to keep the loop of P to PB to P to PB.

View attachment 148880

The

IS this a DT or HST
Or better question does it have a Hydraulic tap block on the right side of the bell housing?

Let me confirm that the FEL is running off the hydraulic pump, behind the fuel injection pump, on the side of the engine?

Close no cigar on the plumbing
This will be the right way:
You can have the FEL control before or after the PS, you just need to keep the loop of P to PB to P to PB.

View attachment 148880

Non-HST.

The block is on the right side, next to the bell housing.

The hyd pump is behind the injection pump, then the block is behind the hyd pump. Pic attached.

Thanks!

 

[IdahoNative]

Good question about my preference. I rarely use the FEL. 99.9% of the work is pulling implementations in a heavily wooded area. I think PS will be the priority over FEL.

 

[tsp159]

One of the many B7100 specific facespace groups has a gentleman that did this to a B7100D. He even shared some CAD files for the bracketry. The John Deere mower steering valves come in a 4 or 5 port flavor, but the one you'll want is the 5 port for Power Beyond for the FEL or 3-pt. I've also looked into some of the smaller Danfoss valves that are on the RTV900, but they lack PB provisions, so you'd have to get something else for that.