B2150dcd

[Hillbillydave]

I can't say this without sounding like a know-it-all, but . . .
You're new here and I've watched Dan, TheOldHokie, help several/many people on here with hydraulic problems over the last few years. Fortunately , he has displayed the patience of Job. Several have attempted to bypass his methodical steps and, almost unanimously, ended up following his advice. Bad pump seals is a low % play. You could have bought a gauge cheaper than the seals. It's your tractor and your $, but troubleshooting almost always saves time and money.

Welcome aboard!, we really are here to help.

I appreciate the help. I’ll look for a gauge. I located the control valve on the 3 point hitch but there’s no way I can turn the screw to get it out. It’s in a difficult place to get to.

 

[TheOldHokie]

I appreciate the help. I’ll look for a gauge. I located the control valve on the 3 point hitch but there’s no way I can turn the screw to get it out. It’s in a difficult place to get to.

https://www.amazon.com/Winters-Stainless-Pressure-Internals-Accuracy/dp/B0087UYRV8/ref=asc_df_B0087UYRV8/?tag=hyprod-20&linkCode=df0&hvadid=692875362841&hvpos=&hvnetw=g&hvrand=8301328671244151638&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9008053&hvtargid=pla-2281435183858&psc=1&mcid=f8ec20932329341fa90d8d59ce3fcd9a&hvocijid=8301328671244151638-B0087UYRV8-&hvexpln=73&gad_source=1

 

[Hillbillydave]

https://www.amazon.com/Winters-Stainless-Pressure-Internals-Accuracy/dp/B0087UYRV8/ref=asc_df_B0087UYRV8/?tag=hyprod-20&linkCode=df0&hvadid=692875362841&hvpos=&hvnetw=g&hvrand=8301328671244151638&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9008053&hvtargid=pla-2281435183858&psc=1&mcid=f8ec20932329341fa90d8d59ce3fcd9a&hvocijid=8301328671244151638-B0087UYRV8-&hvexpln=73&gad_source=1

Thanks

 

[Hillbillydave]

I’ll give an update as soon as I get the parts for the pump and get it rebuilt. See what that does.

 

[TheOldHokie]

I’ll give an update as soon as I get the parts for the pump and get it rebuilt. See what that does.

I hate to burst your bubble but it takes more than seals to rebuild a gear pump. When they wear out its typically fatal.

Dan

 

[Hillbillydave]

I hate to burst your bubble but it takes more than seals to rebuild a gear pump. When they wear out its typically fatal.

Dan

 

[Hillbillydave]

Put new seals in pump. Did not help. Put pressure gauge on the quick coupling loader and tested the pressure. Have no pressure idling. Only have pressure when revving up the engine.

 

[TheOldHokie]

Put new seals in pump. Did not help. Put pressure gauge on the quick coupling loader and tested the pressure. Have no pressure idling. Only have pressure when revving up the engine.

I assume you are using the joystick to deadhead the pump against the loader cylinders when doing that test?

If so thats indicative of a worn out pump but before condemning it you need to check pressure at the pump discharge port.

Testing at the discharge port eliminates all other components including the pressure relief valve so you cant just hook your gauge directly to the port. You need a flow control valve to control flow and pressure. Do you know how to do that?

Dan

 

[Hillbillydave]

I assume you are using the joystick to deadhead the pump against the loader cylinders when doing that test?

If so thats indicative of a worn out pump but before condemning it you need to check pressure at the pump discharge port.

Testing at the discharge port eliminates all other components including the pressure relief valve so you cant just hook your gauge directly to the port. You need a flow control valve to control flow and pressure. Do you know how to do that?

Dan

No. I don’t know what a flow control valve is.

 

[TheOldHokie]

No. I don’t know what a flow control valve is.

Unfortunately there is no easy way to hook a gaugecand valve to ypur particular pump. Could you explain exactly how you measured the pressure and exactly what numbers you got?

Dan

 

[Hillbillydave]

Unfortunately there is no easy way to hook a gaugecand valve to ypur particular pump. Could you explain exactly how you measured the pressure and exactly what numbers you got?

Dan

I connected a pressure gauge to the quick release on the valve body that controls the front end loader (it’s the only place I can connect a pressure gauge). Zero pressure at an idle. When revving the engine the pressure goes up and when I let off it falls back to zero. At 2000 rpms I have about 1500 pds of pressure.

 

[TheOldHokie]

I connected a pressure gauge to the quick release on the valve body that controls the front end loader (it’s the only place I can connect a pressure gauge). Zero pressure at an idle. When revving the engine the pressure goes up and when I let off it falls back to zero. At 2000 rpms I have about 1500 pds of pressure.

Unfortunately that does not tell me much. Post a picture of the gauge hookup please.

It sounds like your pump is toast but it would be nice to confirm that before throwing more money at the problem.

Dan

 

[Hillbillydave]

Unfortunately that does not tell me much. Post a picture of the gauge hookup please.

It sounds like your pump is toast but it would be nice to confirm that before throwing more money at the problem.

Dan

Unfortunately that does not tell me much. Post a picture of the gauge hookup please.

It sounds like your pump is toast but it would be nice to confirm that before throwing more money at the problem.

Dan

 

[Hillbillydave]

I’m using the joystick on the loader to test the pressure

 

[TheOldHokie]

I’m using the joystick on the loader to test the pressure

Thank you - thats helpful. With that arrangement you have two relief valves between the gauge and the pump. May be grasping atvstraws but it would be nice to get a pressure reading with them out of the circuit before cindemning tje pump. A new OEM pump is $1300!!!

You can easily eliminate the loader relief by moving the gauge to the hose supplying the loader valve. Just disconnect that hose at the valve and connect the gauge directly to the end of the hose. Start the tractor and read pressure at idle and full engine RPM.

Dan

 

[Hillbillydave]

Thank you - thats helpful. With that arrangement you have two relief valves between the gauge and the pump. May be grasping atvstraws but it would be nice to get a pressure reading with them out of the circuit before cindemning tje pump. A new OEM pump is $1300!!!

You can easily eliminate the loader relief by moving the gauge to the hose supplying the loader valve. Just disconnect that hose at the valve and connect the gauge directly to the end of the hose. Start the tractor and read pressure at idle and full engine RPM.

Dan

This valve has 3 hoses running to my loader valve.

 

[Hillbillydave]

View attachment 134163
This valve has 3 hoses running to my loader valve.

 

[Hillbillydave]

My loader valve

 

[Hillbillydave]

I’ll try that next week. I had to order a rear PTO seal. My brush hog drive shaft was rubbing against the PTO seal and destroyed it. I didn’t know it till it was too late. Leaked all the hydraulic oil out.