Bleeding Backhoe Hydraulics

[capt1989]

Quick and to the point. I have air in the hydraulic system of my newly installed backhoe. How do I bleed it off? Seems fairly straight forward but I have never had to do this sort of thing. Lot of air as I had to switch around a few hoses. Gonna do another post about the project, LW6 backhoe on a YM2000.

Thanks for any help guys,

capt.

 

[California]

I don't know the answer but I'm curious: can your YM2000 lift and carry that backhoe easily? I am interested to see how well it works. (I considered that hoe then found a smaller one used so I bought that instead). I'm looking forward to your LW6 thread.

Re air: I thought exercising a hoe should work the air out. But I've read that bubbles can be caused by air entering the return side of the system ahead of the pump. Could that be the case here?

Where's J J - he knows all this stuff.

 

[Willl]

Just work it out, no bleed necessary.

 

[MtnViewRanch]

Put each hydraulic cylinder through 15-20 FULL strokes and you should be good to go. Be sure that your hydraulic fluid level is full when you start and to top it off when you are done.

 

[capt1989]

Thanks guys, I will check the fittings on the pump because I will admit it is the one place I haven't checked to see if the fittings need to be tightened and then run each cylinder through a full extension 20 times. Appreciate the quick responses!

capt.

 

[capt1989]

I don't know the answer but I'm curious: can your YM2000 lift and carry that backhoe easily? I am interested to see how well it works. (I considered that hoe then found a smaller one used so I bought that instead). I'm looking forward to your LW6 thread.

Re air: I thought exercising a hoe should work the air out. But I've read that bubbles can be caused by air entering the return side of the system ahead of the pump. Could that be the case here?

Where's J J - he knows all this stuff.

Hey California,

I doubt if the 3 point hitch could pick it up due to the way the weight (1135lbs) is distributed far behind the connecters. I did not even try as I didn't want to risk breaking something. With it mounted to a subframe and tucked in a lot closer to the tractor the front end is very light and without the FEL the front tires would be off the ground. I am going to find a place on the FEL subframe to attatch the 200lbs of suitcase weights I have to help balance it out somewhat. I personally would not put this backhoe on my tractor without a subframe.

capt.

 

[California]

Thanks for the reply. Wow I didn't know they were that heavy. I agree, that's way too heavy to use without a frame mount.

 

[capt1989]

Put each hydraulic cylinder through 15-20 FULL strokes and you should be good to go. Be sure that your hydraulic fluid level is full when you start and to top it off when you are done.

This did the trick. Thanks! :thumbsup: