Rear arms not working since fitting loader.

[Deutzdx3]

That should be OK, but its the only way the loader valve can be dumping oil when you need the lift arms.
The pipe with the 90 degree bend, shouldn't have any flow when using the lift arms?
Can you join the left and right pipe again to check the lift arms, then you know the trouble is in the block

I can join them with a 3/4”-3/4” male male nipple. Will that tell me if the issue is in the block. If so, is it a case of rebuilding the black?

 

[Mursal]

See @Mur Huwcun above post, return back to oil reservoir.

 

[Deutzdx3]

See @Mur Huwcun above post, return back to oil reservoir.

Should I change the rear pipe to where it should be first before doing any of this?? And am I joining pipes 60 to 64 or to 59?

 

[dannewhouse]

The main pipe from the pump is metal. I traced it and intersected it to go into the loader spool block. Pipe 59 then goes from the block to where the metal pump used to go. It’s just been diverted via the loader spool block. Defo the right pipe I intersected.

It has a double pump, other side of pump goes to power steering only by looks of things. No hyd spools either. Just tried them.

What should I try, putting load on loader and see if rams come up then?

load the loader hydraulics by say pushing loader down whilst operating hitch, its about hydraulic preference.

 

[Mursal]

Is the oil reservoir empty?
Where did Quickie tell you to pipe 64 too?
The back end or to the oil reservoir?
If they specified reservoir, then it needs to be changed.

 

[Deutzdx3]

I didn’t ask them that, I think I’ll change the dump tomorrow as it should go to where it shows in the image. Maybe I’m starving the reservoir? Hence nothing working. My aux tank was empty earlier so filled that back up but still not working. I’ll put load on first and see if arms go up. If not I’ll change the dump to where it shows on image and see if all is well after that. Thanks for all the suggestions. Very helpful indeed! [emoji106]

 

[Mur Huwcun]

See @Mur Huwcun above post, return back to oil reservoir.

Thinking about it now, if it was dumping into rear axle pump would be starving and loader would not be working either, it is actually dumping back into hydraulic circuit where it is. @Deutzdx3 can you check if you have flow from the loader block through the pipe on the side or the one below? Check for stamps on block aswell. Dump should be stamped T. I think it’s flowing through the dump line instead of the carry over pipe. I would be inclined to swap them just in case if you cant see anything obvious.

 

[Deutzdx3]

Ok, I’ll have a look tomorrow. I’ll swap the two pipes over to see if it makes any difference. Will also plumb the dump into where the paperwork suggests. Thank you.

 

[Dry Rot]

I think I had a similar problem with my MF390 though I can't think how the previous owner managed!

I'm afraid the technical solutions similar to those mentioned above made me feel quite faint, then someone suggested putting taps (line mounting hydraulic ball valves) in the lines to the loader.

That sounded simple and logical to me and it actually works. I just raise the loader, turn the taps, and use the rear lift arms. Two taps would probably do it but I have four, two on each side. I forget where I got them from.

now.

 

[Monty]

Why are there 3 pipes on the loader? To me it looks like you have 2 return pipes from the loader one going back to the backend to work the rest of your hydraulics and the other a free flow return which will be the easier route for the oil to take. Our loader has just 2 on with the side blanked off but it is open centre. Is your deutz closed centre?

 

[Monty]

Also in the diagram both return pipes are going into the same block on the tractor. Neither are free flow returns

 

[Deutzdx3]

Why are there 3 pipes on the loader? To me it looks like you have 2 return pipes from the loader one going back to the backend to work the rest of your hydraulics and the other a free flow return which will be the easier route for the oil to take. Our loader has just 2 on with the side blanked off but it is open centre. Is your deutz closed centre?

How would I know if it’s open centre or closed? I did think about that. Wether or not it needs that 3rd pipe. I might Blank it off fist try it. I just done want to damage any thing.

 

[Mur Huwcun]

How would I know if it’s open centre or closed? I did think about that. Wether or not it needs that 3rd pipe. I might Blank it off fist try it. I just done want to damage any thing.

It needs three pipes. Don’t blank them. Your tractoris a gear pump open circuit tractor. The return pipe should only carry oil to the back end when the loader block PRV opens, the ‘other’ pipe is just part of the tractors hydraulic circuit to feed whatever else is after the block. Check that your dump pipe has no flow when tractor is running

 

[Deutzdx3]

It needs three pipes. Don’t blank them. Your tractoris a gear pump open circuit tractor. The return pipe should only carry oil to the back end when the loader block PRV opens, the ‘other’ pipe is just part of the tractors hydraulic circuit to feed whatever else is after the block. Check that your dump pipe has no flow when tractor is running

Could the dump pipe and return pipe be the wrong way round perhaps? I guess this would depend on who makes the loader control block.

 

[Deutzdx3]

So with the loader Under load it makes no difference. Still the arms won’t lift.

 

[Netherfield]

I'm nearly sure if you connect 60 to 59 you will cut out the loader control and take things back to how the oil travelled originally. Although I could be wrong, the wife keep telling me.

 

[Deutzdx3]

Just undid the dump. 59 whilst the tractor was running and it was flowing out of it.

 

[Deutzdx3]

It needs three pipes. Don’t blank them. Your tractoris a gear pump open circuit tractor. The return pipe should only carry oil to the back end when the loader block PRV opens, the ‘other’ pipe is just part of the tractors hydraulic circuit to feed whatever else is after the block. Check that your dump pipe has no flow when tractor is running

Dump does have flow when it’s ticking over? Any ideas why this is? Wrong place? Wrong pipe plumbed in to the wrong port?

 

[Deutzdx3]

I'm nearly sure if you connect 60 to 59 you will cut out the loader control and take things back to how the oil travelled originally. Although I could be wrong, the wife keep telling me.

If I connected 60-59 it would create the same circuit as before fitting the spool correct. But that would render the loader useless. There has to be a logical way of it all working together or other tractors wouldn’t run loaders and have linkage control at the same time. Its either a problem with the loader valve or plumbed incorrectly. They are the only two options. That said, figuring out what is incorrectly plumbed is now the issue.

 

[Mursal]

When you say "Dump" you mean the pipe coming from the "T" mark on the slice with the 90degree bend on it? Or the pipe on the bottom right hand side in your picture?

Will you look at the loader slice for markings?
Do not block any return or feed pipes ...........