bleed hydraulic pump 5000

[ESVADuke]

Which of these ports do I use to bleed the pump?

 

[Bern]

Which of these ports do I use to bleed the pump?


View attachment 69895

Neither. No need to bleed.

 

[Sean in PA]

You should not need to bleed that pump, so neither of those ports should be used to bleed it. The red arrow is pointing to the relief valve. I'm not sure what the green arrow is pointing to, but I don't believe that it's for bleeding the pump either. If it has the original blocking plate on the top cover, you can loosen the large bolt in the test port to see if air bubbles are present in the system. If there are, then there is most likely a leak somewhere on the suction side of the pump circuit inside the center housing.

 

[ESVADuke]

You should not need to bleed that pump, so neither of those ports should be used to bleed it. The red arrow is pointing to the relief valve. I'm not sure what the green arrow is pointing to, but I don't believe that it's for bleeding the pump either. If it has the original blocking plate on the top cover, you can loosen the large bolt in the test port to see if air bubbles are present in the system. If there are, then there is most likely a leak somewhere on the suction side of the pump circuit inside the center housing.

OK, thanks. The lift has gotten weaker and whines like crazy, someone told me it might be air in the system.

 

[Sean in PA]

OK, thanks. The lift has gotten weaker and whines like crazy, someone told me it might be air in the system.

Sounds like the pump is getting worn and might need to be rebuilt or replaced, or the relief valve or unloader valve might be stuck partially open.

 

[ESVADuke]

Sounds like the pump is getting worn and might need to be rebuilt or replaced, or the relief valve or unloader valve might be stuck partially open.

brand new pump last year. I'll check the relief and unloader valves

 

[shaun wallace]

Have a leak some where in lift cover. Mine has worn spool and whines and hiccups. Cyl seals have been replaced.

 

[WayneIA]

OK, thanks. The lift has gotten weaker and whines like crazy, someone told me it might be air in the system.

Sounds like the relief valve is contanstanly relieving. What do you have hooked to the hyd system?

 

[ESVADuke]

Sounds like the relief valve is contanstanly relieving. What do you have hooked to the hyd system?

3pt hitch sprayer tank, won't lift more than 100 gallons. 13 ft disk will lift halfway. AC 333 planter lifts very slowly.

 

[ESVADuke]

Have a leak some where in lift cover. Mine has worn spool and whines and hiccups. Cyl seals have been replaced.

cylinder seals have been replaced on mine also. I've been wondering about the valves. Sean and Bern's advice is typically good!

 

[WayneIA]

3pt hitch sprayer tank, won't lift more than 100 gallons. 13 ft disk will lift halfway. AC 333 planter lifts very slowly.

Was refering to perhaps the hyds was dead headed somewhere. A little history on a new pump. Hissing since new? What has happen in the mean time?

 

[Destroked 450]

Hopefully your not having a flow issue like I’m have with a neighbors tractor he recently purchased
Mounted a loader for him and found lots of sealant under a recently installed remote valve
Loader is moving terribly slow, after talking to him about it he mentioned the lift was real slow as well

 

[Bern]

Hopefully your not having a flow issue like I’m have with a neighbors tractor he recently purchased
Mounted a loader for him and found lots of sealant under a recently installed remote valve
Loader is moving terribly slow, after taking to him about it he mentioned the lift was real slow as well View attachment 69979

Whoever put that on needs to have his caulking gun taken away from him!

 

[Destroked 450]

Whoever put that on needs to have his caulking gun taken away from him!

And the rest of their tools
This is on a 4630, changed the suction filter and found sealant in the filter, loader is faster now but still slow as cold molasses

 

[ESVADuke]

And the rest of their tools
This is on a 4630, changed the suction filter and found sealant in the filter, loader is faster now but still slow as cold molasses

ufff that's ugly. I didn't use any sealant!

 

[TheOldHokie]

3pt hitch sprayer tank, won't lift more than 100 gallons. 13 ft disk will lift halfway. AC 333 planter lifts very slowly.

I assume thats an open center system. Easy to test pump outlet pressure. I would start there and work out frim the pump testing pressure aling the circuit as I went until you find the point where pressure is lost.

Dan