Hydro help

[careyo63]

The threads will be easily taken care of. It's the Key and Hex bolt that is the main issue. Find a local shop and have it taken care of properly. Your pump is all in tack so that would be the HIGH $$$ cost. Just have a professional take care of putting it back together. Then get it home and bolt it up...

 

[alpinebigfoot]

Thanks for the help !

 

[California]

It is a woodruff key. Support the shaft, tap one end down with a pin punch, the other end will come up. Grab it with a pair of vise grip pliers.

That's the correct answer.

But if the remaining part of the key still won't budge, try some dentistry with a tiny circular saw on a Dremel. A slot lengthwise down the middle of the broken key would weaken its grip in the slot.

And that looks to be a key that is much softer than the surrounding metal so it is sacrificed before anything expensive breaks. Be sure the replacement is similar!

For me, if minor tinkering won't fix it I would follow the advice here and take it to a hydraulic shop.

 

[alpinebigfoot]

Key popped out very easily. These threads are really buggerd.

 

[winston1]

If the threads have any holding power you will be ok. The key and hex is what takes all the torque. the nut just holds the hex from coming off. Don't overtighten.

 

[alpinebigfoot]

Yea those last two threads is what holds that last nut I think it will be good.

 

[Xfaxman]

Yep, that is why I have thread files. :thumbsup:

 

[alpinebigfoot]

Ohh there nice. Have to figure out what thread size this is.

 

[Xfaxman]

Ohh there nice. Have to figure out what thread size this is.

And SAE or Metric.

 

[kenmac]

May have enough threads to apply some loctite and get it to hold.. I see now.. That large nut just slides over the key, then the small nut holds it together....
Now make the repairs ,and go sin no more Meaning ,, don't run the tractor with any hyd lines disconnected, or you install a loop to complete the circuit between the 2 lines you disconnect.

 

[alpinebigfoot]

Tell me kenmac! I learned about hydros the hard way. Lesson learned

 

[careyo63]

I'm just wondering how the threads got damaged on the pump shaft. It would be apparent someone was in that pump before. When you get the Key make sure you look and check the Hex Bolt and were the key goes. That is what going to take the most damage. It's not made any were near the grade or metal the pump shaft is. It would be hard to believe the Hex bolt keyway isn't damaged.

 

[kenmac]

Tell me kenmac! I learned about hydros the hard way. Lesson learned

At least you learned.. I've learned A lot...usually, the hard way LOL

 

[alpinebigfoot]

Maybe I did the threads. I used an impact gun. Only way to get it off. There was nothing to grab to hold the shaft.

 

[careyo63]

Check the Hole in the end of the shaft when putting it back together. It's there for a reason. Most likely takes allen wrench. Or did at one time. Just because if you shear the key you need something to hold the shaft and get the nut off. Or risk the damage just like what happened to the threads.

 

[alpinebigfoot]

Lol see I'm learning I seen that hole. I feel like a doe doe now.

 

[careyo63]

Oh no at least your learning. I just worked in a machine shop and multi million dollar printing equipment for 35yrs.. There's a lot who just will never learn. LOL.

 

[alpinebigfoot]

I hear ya ! By the time I get this all fixed I will be the hydro master. I can't tell all you enough how much I appreciate all of you helping and taking the time to help a newb small farmer tractor owner!

 

[alpinebigfoot]

Just received 2 parts

 

[normde2001]

Threads are pretty trashed. You might need a new pump.