BX25 weak hydraulics after removing BH

[woodpile]

yes the fel and backhoe slow and no power. the backhoe seem like started get slow and now it take a sec.or two to respond . The fel won't lift the front end off the ground anymore and going into a pile you can't curl the bucket no power.
The tractor drives, mows, 3 ph works fine..

Just dont no hydraulics good enough I guess.

Thanks

 

[dfkrug]

The stopper tit isnt centering itself when disconnected, its sitting cockeyed in its bore. The male plug closes in the proper manner when disconnected.

Sounds like you found the problem. I don't know what new Kubota
sub-CUTs are using for QA fittings these days, but my photo shows the
two major types you are likely to find on most tractors, ISO-A, and ISO-B.
You can get these anywhere....I have bought my last dozen or so pairs
from our pals at DiscountHydHose.com. Every major maufacturer makes
them, as far as I can tell. You can tell what Kubota uses just by comparing
to the pix.

If you are getting foam in the hydraulics, it usually means that you
have a suction leak of some sort (assuming no shortage of fluid). Note
that you get a certain amount of air-entrainment when attaching an
implement with empty hyd cyls, or if you are sucking air past your
loader gland seals. The air bubbles will self-purge with time, if you stop
sucking air. A systemic air-entrainment problem could be due to a leaky
implement pump inlet hose/manifold, or clogged hyd fluid intake screen.

 

[J_J]

You can do this short test to see if the entrained is air developed on the suction side , or afterward. Remove the hose to the FEL valve and put the hose in a clean bucket for a couple of sec. If the air is caused by the suction, it will be in the bucket. If clear, then it is probably caused by high pressure fluid dumped by a relief valve somewhere.

You should be able to lift the tractor using the curl cyl's, unless you push the valve to fast dump/regen.
Should be able to do it with the lift cyl also.

Definitely double check the QD's, a piece of the o-ring can get extruded and block some or all of the fluid. You can check QD's by removing the QD set from the hose, and put the QD, male and female connected together into a bucket and check the output.

 

[Scooby074]

dfkrug: Looks like the fittings are standard 60 series parkers. Im going to pick up a set next time im at Princess Auto (or the dealer)

JJ: thanks for the tip. I think the amount of foam is insignificant. Plus the oil itself has no air bubbles in it. Seems to be a common issue with BX's.

 

[CHDinCT]

BX QC's are ISO7241-B. I have bought quite a few from here, first for the dual rear remotes on my BX1860 and recently to hook a splitter into the BH loop on my BX25.

ISO 7241-1 Series B Hydraulic Quick Disconnect Couplers