Power Beyond Kit for 790?

[Phineas7]

I'm considering adding a grapple to my bucket and checked on the PB kit to do that. They want $225 for the PB and another $165 for some sort of rear quick release kit. Is this kit just some hoses, couplings and a metal plate to mount to the rear of the tractor? Do I need it? Or can I come directly off of the PB and go to my valve?

Thanks,

P7

 

[Mech]

My 790 power beyond kit (actually Rear auxiliary hydraulic - BM18005) was $220 and was complete. I think it would be difficult to connect to the valve w/o this kit. It included the plate and connectors at the back of the tractor and the bypass hose that is needed if the Power Beyond isn't hooked to anything.

 

[gordon21]

The power beyond on a 790 will be mounted under and behind the seat. The couplers point straight back. It is convienant for a backhoe, log splitter or power tilt. It would be a long run up to the FEL.

Make sure whatever you attach has an open center valve OR the short connector hose is attached. If you run the tractor and those two ports are not connected and fluid flowing, you will be looking at an expensive repair bill.

 

[Mech]

I ran my PB from the back to a valve on the right fender and then from the valve to an angle kit for the FEL blade and to my TnT. It wasn't too bad a run to the right fender. The alternative would be to put in a diverter valve and have the diverter switch between one of the FEL functions and the angle function. I knew I wanted a TnT so the separate valve worked best for me.

 

[Phineas7]

Thanks all!
After looking up the BM18005 on the JD site, I found the rear quick release kit; What that is, is an extension kit from the 4 ports going to the loader to move them to the rear.

The salesman at our local dealer is a nice guy, but this is not the first time he's proven he's not the sharpest pencil in the cup.

 

[stuart]

I ran my PB from the back to a valve on the right fender and then from the valve to an angle kit for the FEL blade and to my TnT. It wasn't too bad a run to the right fender. The alternative would be to put in a diverter valve and have the diverter switch between one of the FEL functions and the angle function. I knew I wanted a TnT so the separate valve worked best for me.

Mech: Any chance you might have some pictures of your setup on the 790? I have a 4300 and want a blade tilt in the rear and a fel blade angle in front. I was wanting to see the plumbing if possible. I have a hard time envisioning it. Thanks

 

[Mech]

I will try to get some pictures as soon as I can. Meanwhile a few things I learned from this project. I knew nothing about hydraulics before I started this but got a lot of information searching and asking questions on TBN.

Get a valve that has a capacity that exceeds the GPM that your tractor is rated for. The hydraulics flow in series so anything below your gpm will restrict the total flow. Tractordata has your tractor rated at 12.9 gpm, my 790 is rated at 5.6 gpm (I have some serious hydraulic envy).

The valve of course needs to fit where you want to put it and you want to get enough spools to cover whatever you might want to do in the future. I got the valve, see picture, because it fit and had enough flow to not hinder the 790s already anemic (although always been more than adequate for me) hydraulics. I got it from Hydraulicstore.com, Bucher Manual Monoblock Directional Control Valve. I did not get float on any spool. This might be a bit small for you. They have a 17 GPM model.

I especially like this valve because it is small, relatively inexpensive and because the handles can mount vertical or horizontal so I have my angle mounted vertical and the two TnT handles mounted horizontal so I do not grab the wrong one.

I bought the angle kit for my frontier FEL blade which has two single acting cylinders (I have seen some hydraulic angles with one double acting cylinder) and I then bought the TnT cylinders from CCMachinery.com and lots of fittings and hoses along with field attachable hose ends to build the hoses to the exact lengths I needed.

Materials:

• Valve
• Cylinder(s)
• Hoses and connector ends
• Fittings to swivel and convert between all the different fittings
• Tie wraps
• Washers, nuts, and bolts to mount the valve
• Quick disconnects (optional) (Since I take my blade on and off and I wanted to allow the option of taking the FEL off, I have Quick Disconnects at the front of the loader and where the FEL hydraulics disconnect)
• Nylon sleeve material (optional)
• Materials to build attachments for the quick disconnects (optional)

Connections:

• Power beyond ports to in and out on valve
• Blade Angle:
  
  [*]One side of one spool to one single acting cylinder
  [*]The other side of the same spool to the other single acting cylinder​
• TnT:
  
  [*]Each side of one spool to two connectors on the top double acting cylinder
  [*]Each side of the other spool to two connectors on the tilt double acting cylinder
  ​

The biggest problems I had where were where to run all the hoses (It is pretty tight on a 790) and getting all of the correct fittings to adapt between the cylinders and valve ports and of course paying for all of this because it is not cheap.

 

[Mech]

Not sure how much they will help you but I've included a bunch of pictures. My next project is putting lights on the top of the canopy. I'm also planning to shorted the hoses going from the Power Beyone to the valve when I get some time. Don't know what I will do with my weekends when I run out of projects for the tractor.

 

[Mech]

Well that didn't work. I attached about 15 pictues and none of them made it. I will try a few at a time. These are of the Angle Kit.

 

[Mech]

These are of the valve.