Hydraulic Control Valve mx5100d

[Bulletsnbait]

I have a hydraulic leak from my loader control valve. It's pouring down the 3 standard lines going to the tractor. The quick connects are not leaking. Tractor is 6 years old. I unscrewed and put permatex on the couplings and reinstalled and it's still pouring the fluid. Mechanic friend thought it was the lines. I think it's the block. Before I go buying new lines, and a 1000 valve, can I install an aftermarket control valve on the la844 loader on an mx5100d tractor? Recommendations?

 

[North Idaho Wolfman]

Pictures might really help, I'll bet it's a fitting or hose over being the actual valve body being bad.

 

[TheOldHokie]

I have a hydraulic leak from my loader control valve. It's pouring down the 3 standard lines going to the tractor. The quick connects are not leaking. Tractor is 6 years old. I unscrewed and put permatex on the couplings and reinstalled and it's still pouring the fluid. Mechanic friend thought it was the lines. I think it's the block. Before I go buying new lines, and a 1000 valve, can I install an aftermarket control valve on the la844 loader on an mx5100d tractor? Recommendations?

Find the leak. I doubt its an expensive fix andcshould beceasy to find.

If its a constant flow pthe ŕimary culprits are onlet amd power beyond hosed and comnections.

And put the permatex away - very little if anything that needs it.

Dan

 

[Bulletsnbait]

I'll take pictures and video.

 

[Bulletsnbait]

 

[Bulletsnbait]

 

[Bulletsnbait]

 

[TheOldHokie]

View attachment 139881

That is the hydraulic outlet block

Upper right is pump out
Upper left is pump return
Lower right is tank return

The hose ends are all JIC swivels - no sealant

 

[Bulletsnbait]

That is thevhydraulic puylet block

Upper right b is pumpnout
Upper leftvisbpumpbreyurn
Lower roght is tank return

The hose ends are all JIC swivels - no sealant

Ok, but do you see the leaks?

 

[TheOldHokie]

View attachment 139884

Ok, but do you see the leaks?

No.

View attachment 139882

That is an ORB x JIC elbow - no sealant

 

[TheOldHokie]

View attachment 139883

ORB x JIC fittings - no sealant

 

[Bulletsnbait]

No.

That is an ORB x JIC elbow - no sealant

There is fluid pooling on the control valve beneath the one fitting and droplets hanging from 2 lines

 

[TheOldHokie]

View attachment 139884

Ok, but do you see the leaks?

No - can you point it out?

 

[Bulletsnbait]

 

[Bulletsnbait]

 

[TheOldHokie]

There is fluid pooling on the control valve beneath the one fitting and droplets hanging from 2 lines

Could be a damaged fitting or bad hose. Not the sort of thing you csn diagnose from afar. Usually easier to see if you get it under pressure.

Dan

 

[TheOldHokie]

View attachment 139885

Likely fluid from above.

 

[TheOldHokie]

View attachment 139887

Use some spray brake ckeaner to get it clean and dry then try to find.highest point that gets wet.

 

[Bulletsnbait]

Likely fluid from above.

I think it's definitely traveling down the lines. And I could see where the fluid was coming up around the fitting threaded into the valve, so tightened it a little. Was afraid to go too tight because it's cast? Still leaking. Loader very very very slow to go up at first but then after a while, starts working