[NUTNDUN]

Has anyone been successful at rebuilding a dual spool loader valve? The one with my Johnson Loader on my Massey 1655 needs some help. I have thought about swapping it for a single stick dual spool but it would be quicker to replace it with another two stick. I would love to be able to rebuild it but I have never had one apart and I don't know if it is something that I would be able to do. So I would like to know if any of you have rebuilt one before and if so do you have any tips?

 

[NUTNDUN]

I wasn't sure if there would be a bunch of parts flying out if I pulled it apart. I need to get a pressure gauge too I guess. Thanks for the confirmation guys.

 

[NUTNDUN]

I don't know how soon I will get to it but I would like it functional for the snow if we happen to get hammered. Might try and work on it through the week or next weekend and I will definitely take some pics.

 

[NUTNDUN]

I got the valve removed from the loader and the piston removed from the spool for the main lift. That all looks to be in great shape. I did removed what I believe is the pressure relief valve. There was a spring and the little insert piece. There was a bolt in the end of it against the cap. I don't believe the bolt is correct though, almost like someone else was in there before. The valve was definitely worked on before, judging by the marks from tools used to tear it apart. I will get pictures of it here in the next day or two.

I think I might be steering towards just getting a new valve.

 

[NUTNDUN]

That bolt is the item you turn to change the pressure you wish to release at. Usually a locknut or some resistance to keep in place. Only way to check pressure after adjust is put back together and use gauge in system, then tear all down again and re-adjust if not right. Spring strength also involved in this.

I will definitely need to take some pics then. There isn't anything this bolt could thread into other than sitting inside the spring. There was a thin washer inside the cap the bolt head was resting against. I guess I could technically use a couple more washers to shim against it a little tighter.

 

[NUTNDUN]

Here is a pic I took of the valve with my phone before removing it.

 

[NUTNDUN]

Dang! I didn't need the glasses for that pic. That's one hugh pic, George!

Thanks for pointing that out Kenny. Explains why we found some other pics that were huge like that. I uploaded that with Tapatalk and somehow it is bypassing the server resizing them. I downloaded it and reuploaded it from the pc so it should be good now.

 

[NUTNDUN]

Does anyone know what those 2 straight slotted ( plugs ?) are for , located between the work ports on the top of the valve ?

I did pull them out and they were just like the pressure release minus the bolt. They had a plunger and spring under each one.

 

[NUTNDUN]

The valves are plain with no float or detent positions. It looks like there could be a couple of o-rings on the inside of the valve body but I can't tell for sure.

I could always try adding a couple of washers to the bolt on the pressure relief and see if it helps. The way the valve would act though seemed to be more in the valving and letting pressure past. The bucket tilt would lift the ass of the tractor off the ground but the main arm lift wouldn't budge anything over 50 lbs. Even empty if you moved the lever all the way sometimes it would lift and other times just sit there. Sometimes if the arms were already up in the air and you pulled the lever back to go higher it would actually go down.

 

[NUTNDUN]

Get yourself a pressure gauge, and tee it into the down stroke side of your lift

cylinders. Could be the seals in the cylinders.

I really do need to get a pressure gauge. Would answer a lot of questions. I might try and get one here the next couple of days.

 

[NUTNDUN]

I just now got around to taking pictures of the valve torn halfway apart.

Here is the top view of the valve where the two smaller button plungers and springs resided:

Here is the pic of those two plungers and their springs and screw cap:

This pic is where the pressure valve sits:

And the next two pics are to show the pressure valve and its contents the way they came out of the valve body.