Ford 1920 - 7108 loader - Control valve

[gdabel]

I was able to disconnect the four quick connect lines with the FEL raised on it stayed up just fine. I purchased adapters to check the pressure, but the 1/4 inch quick connects would not fit. I don't know this size, because the 3/8 inch appeared to large.

I disconnected the FEL from the tractor. If you know the correct size of quick connects, i will exchange them and check pressure, but I really feel the pump is fine. The diverter valve has a relief valve, but I don't feel that is the issue because the three point system flows thru the same diverter valve.

My loader has the following spool

Zexel
45613
307800-0701
340012481

I think it is probably a "poppet", since my understanding is they work similar to a relief valve, and this spool has two of them, but may not be available. A rebuild kil cost approx. $250 and I feel that is to expensive.

Any thoughts or suggestions would be greatly appreciated.

Thanks
Gary

 

[JFS2295]

The Ford QCs are a Ford/New Holland item only. Standard over the counter connects will not fit.

But I think your conclusion is correct, the problem is within the control valve. You could take it back to the shop that did the work on the valve and tell them they didn't correctly repair the valve. It might be as simple as some debris holding the poppet open, or as troublesome as a poppet spring broken.

Or just do as JJ suggested in his second post about a replacement control valve.

 

[gdabel]

Thanks, I will remove the control valve and take it back. I will keep you'll informed for helping me.

 

[RickB]

I test cylinder piston seals with a non-contact infrared thermometer without undoing hoses, matching caps & plugs or making a mess. 100% accurate in diagnosing failed piston seals when done properly. All with a $50 (or less) tool.

 

[gdabel]

I changed the spool valve, which was bad and bypassing, with the following Prince Valve.
LVT Valve 2 Spool
LVT 1885AB1220-130

Everything is working fine, but my three point lift is not working. All ports are connected correctly. Is there a chance that I have air in the system. I have not connected my front end loader back up yet, but when I move the spool valve levers, pressure is occuring because i can tell by the sound of the tractor. The Neutral or Power beyond port is connected correctly back to my diverter valve, and the diverter valve screw is in the correct position. Is there a plug that i should remove inside the power beyond port? Or is air in the system?

 

[J_J]

In order to use the PB port, there should be either a screw inside the port or a PB sleeve in the PB port. This is what feeds the fluid to a valve downstream.

If the plug is not there, or the sleeve, the fluid is going to the out port. The FEL valve will still work however.

There should be a hex screw in that valve for PB.

.http://www.princehyd.com/Portals/0/products/valves/LvtInstS.pdf

 

[gdabel]

ok; new spool valve but when I raise the *******, the cylinders drift down slowly. The spool valve when tested was bypassing. With a new spool valve, im guessing i have a bypass inside the cylinder. Would this be correct? How can i check this to be sure? I believe I had multiple problems.

If true, where can I purchase boom lift cylinders for a ford 7108 loader?

Everyone has been helpful, and I certainly appreciate everyones knowledge.

Gary