l245dt 3 point not working

[kboytown]

Ok, got vent removed and cleaned. Unfortunately nothing changed

 

[North Idaho Wolfman]

So, still only intermittently working. Even when I manually hold the lever up, the 3 point falls and checked that it does move the round rod, so unfortunately don't think that is the solution. grrr...

I just tried cleaning the vent tube with some wire. Wasn't sure if it was removable and didn't want to create another problem. How is it removed? Does it just screw off counter clockwise?

Where is the relief valve that you cleaned out? Sorry, this is new to me.

Last thing, how much pressure should be coming out when these plugs are removed? I really don't know what psi should be, it is flowing and pulsing out, but not super high pressure.....

Thanks!

The more you talk about what's going on the more confused I've become.

If you lift the three point and hold the lever in the up position does the three point stay up?

 

[Russell King]

So, still only intermittently working. Even when I manually hold the lever up, the 3 point falls and checked that it does move the round rod, so unfortunately don't think that is the solution. grrr...

I just tried cleaning the vent tube with some wire. Wasn't sure if it was removable and didn't want to create another problem. How is it removed? Does it just screw off counter clockwise?

Where is the relief valve that you cleaned out? Sorry, this is new to me.

Last thing, how much pressure should be coming out when these plugs are removed? I really don't know what psi should be, it is flowing and pulsing out, but not super high pressure.....

Thanks!

I suggest you test the pressure of the system. You will need a gauge that reads up to 3000 PSI. Then some adapter to screw into the port that is shown in post #18. The gauge can be attached to the fitting with an appropriate hose or just directly into the fitting using a JIC female fitting on the valve so it can be installed so you can see it.

You need to download the Work Shop Manual and it is available here.

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[North Idaho Wolfman]

I suggest you test the pressure of the system. You will need a gauge that reads up to 3000 PSI. Then some adapter to screw into the port that is shown in post #18.

The adapter needed would be is BTPP (British thread Pipe Parallel).
And you use a grease gun whip (10,000 PSI) to go to the gauge.

 

[kboytown]

The more you talk about what's going on the more confused I've become.

If you lift the three point and hold the lever in the up position does the three point stay up?

The 3 point does not stay up when holding it and keeping the lever in the upright position. It had been working slowly and shakily for the first few minutes of startup, the dropping completely. This morning it didn't even do that.

I'll track down the things to measure psi and get back to everyone. Really appreciate everyone's help trying to figure this out.

 

[TheOldHokie]

The 3 point does not stay up when holding it and keeping the lever in the upright position. It had been working slowly and shakily for the first few minutes of startup, the dropping completely. This morning it didn't even do that.

I'll track down the things to measure psi and get back to everyone. Really appreciate everyone's help trying to figure this out.

If the lift does not stay up there is no pressure. Simple as that. The trick is finding why there is no pressure.

Will the 3pt lift a 500# load?

Dan

 

[kboytown]

So quick update and thanks to everyone for the guidance. I decide to start pulling some lines and such to see if there was clear blockage anywhere (everything seemed clean and clear). Also removed filter screen, cleaned it (look pretty good, a few clumps of sludge, but didn't appear too bad), reinstalled screen and refilled w/ trans/hydraulic fluid.

Started tractor up and 3 point worked immediately. Would hold me w/out any problems (just under 200 lbs.). Drove around the farm raising and lowering it for about 15 mins and everything on the 3 point worked great. Then decided to return to the shop and 3 point and lever just dropped and wouldn't work again. I decided to check hydraulic fluid level to make sure it was leaking and when I removed the bolt it came out quite heavily.... definitely not the small little drip that comes out when just filled. Is this just because fluid is not hot or could it be some indication of what is going on with hydraulic problem?

Still trying to track down gauge and fittings to test pressure and will get back to group w/ that info. But wonder if it is even necessary since it appears that there is sufficient pressure at times but not others? or maybe this would help me pinpoint what is going on. Could also remove hydraulic screen again, but not sure this is the issue an whether it's worth another 5 gallons of fluid to troubleshoot....

 

[TheOldHokie]

So quick update and thanks to everyone for the guidance. I decide to start pulling some lines and such to see if there was clear blockage anywhere (everything seemed clean and clear). Also removed filter screen, cleaned it (look pretty good, a few clumps of sludge, but didn't appear too bad), reinstalled screen and refilled w/ trans/hydraulic fluid.

Started tractor up and 3 point worked immediately. Would hold me w/out any problems (just under 200 lbs.). Drove around the farm raising and lowering it for about 15 mins and everything on the 3 point worked great. Then decided to return to the shop and 3 point and lever just dropped and wouldn't work again. I decided to check hydraulic fluid level to make sure it was leaking and when I removed the bolt it came out quite heavily.... definitely not the small little drip that comes out when just filled. Is this just because fluid is not hot or could it be some indication of what is going on with hydraulic problem?

Still trying to track down gauge and fittings to test pressure and will get back to group w/ that info. But wonder if it is even necessary since it appears that there is sufficient pressure at times but not others? or maybe this would help me pinpoint what is going on. Could also remove hydraulic screen again, but not sure this is the issue an whether it's worth another 5 gallons of fluid to troubleshoot....

If the 3pt is not lifting you dont have pressure. Why is the question. I would clean that screen again.

Dan

 

[North Idaho Wolfman]

You have a suction side leak, it's foaming the fluid (which make the level go up) then it reaches the point where it cavitates the pump and the three point quits working.