FEL Hydraulics Just Died

[mike0000]

I disconnected hoses and put zip lock bags over the ends then zip tied them tight around the hoses.

Mike

 

[mike0000]

That was my suggestion. When you completed your test there was no doubt your pump had to be removed.

I'd hate to remove the pump and still not know what my problem was.

I agree ovrszd,

I did find that my pump drive shaft mates perfectly with a 5/8” socket, depending On OP skill set/tools on hand a good 1/2” drive drill can be used for testing purposes. I did sacrifice a socket extension to use to drive the pump, cut it off so it could be inserted in the drills chuck. This was after getting the new pump.

I was concerned, in my case that I had some sort of blockage that caused the damage to the drive gear.
I sure didn’t want to do all the work only to have the same failure down the road.
I found that I could ”clock” the new pump 90 degrees and connect it to the hoses. With this setup I tested the hydraulics with my drill, with a zip tie on the drills trigger, I could run the pump and test the front end loader. That drill had enough power to test all functions.

Mike

 

[ovrszd]

I agree ovrszd,

I did find that my pump drive shaft mates perfectly with a 5/8” socket, depending On OP skill set/tools on hand a good 1/2” drive drill can be used for testing purposes. I did sacrifice a socket extension to use to drive the pump, cut it off so it could be inserted in the drills chuck. This was after getting the new pump.

I was concerned, in my case that I had some sort of blockage that caused the damage to the drive gear.
I sure didn’t want to do all the work only to have the same failure down the road.
I found that I could ”clock” the new pump 90 degrees and connect it to the hoses. With this setup I tested the hydraulics with my drill, with a zip tie on the drills trigger, I could run the pump and test the front end loader. That drill had enough power to test all functions.

Mike

Good stuff Mike!!!!

 

[mike0000]

Good stuff Mike!!!!

Thank you, I’ve had a lot of help from this forum and it’s members.

Here‘s a shot of my tractor‘s two pumps, hopefully similar to OP’s. PS on left Hyd. On right. Drive gear inside gray housing between pumps. It is a lot of work, getting to that gear.

 

[ovrszd]

Thank you, I’ve had a lot of help from this forum and it’s members.

Here‘s a shot of my tractor‘s two pumps, hopefully similar to OP’s. PS on left Hyd. On right. Drive gear inside gray housing between pumps. It is a lot of work, getting to that gear.
View attachment 740019

Yes, looks like it would be.

 

[mike0000]

Void to right is where that drive gear would reside, whole front cover of the motor is off in this picture.

 

[mmranch]

Thanks again for the photos... it helps a lot.

I have found that my main pump inlet and outlet connections have a small test port on each... so testing the output of the pump is fairly easy in that regard (just have to contain whatever mess is made). But I haven't done that yet.


In my service manual, the PTO troubleshooting section says 'check the fuse'. The PTO block has a solenoid on it with a wire going to it. At the moment... I haven't found the PTO fuse yet. It's not in the main fuse box under the hood. Thinking it might be under the dash. Not sure if a blown PTO fuse would affect the flow to the FEL valve, etc.

Thanks again.

 

[mike0000]

Thanks again for the photos... it helps a lot.

I have found that my main pump inlet and outlet connections have a small test port on each... so testing the output of the pump is fairly easy in that regard (just have to contain whatever mess is made). But I haven't done that yet.


In my service manual, the PTO troubleshooting section says 'check the fuse'. The PTO block has a solenoid on it with a wire going to it. At the moment... I haven't found the PTO fuse yet. It's not in the main fuse box under the hood. Thinking it might be under the dash. Not sure if a blown PTO fuse would affect the flow to the FEL valve, etc.

Thanks again.

You’re welcome, keep us informed on your progress. Having the test ports should help a lot.

Mike

 

[oldnslo]

Mm,
A blown PTO fuse would not prevent flow from going to the FEL or other functions. It would just prevent the solenoid operated valve that engages the PTO from operating.

 

[mmranch]

OK, it appears that the main pump is not pumping.

I just pulled the plug out of the test port of the main pump outlet. A small stream/drip came out of the test port (I had a clear plastic deflector in front of the opening just in case lots of fluid would come out). I then started the engine. The small stream/drip then stopped down to just an occasional drip as the engine ran. So basically nothing was coming out.

So now I will move on to removing the pump. Turns out... the steering pump and main pump are held in place using the same 4 bolts. So I will have to disconnect both pumps to see what's going on. My guess is it could be the same situation as Mike0000's problem.

Thanks again to all.