What is leaking?

[acarr1]

Use a pressure washer or a can of brake cleaner to get the whole area as clean as possible. That will make it easier to find the leak. Also in my experience leaking orings and seals don’t spray oil. They just kind of seep out. A cracked line or pinhole in a hose will spray. And those can be very dangerous. Don’t use your hand to feel around for it. Good way to loose a finger or two.

 

[Fxfymn413]

Wrap some paper tape around the suspected joint. When you operate the valve the torn tape will make the spot that is leaking will readily apparent.

 

[kenhar]

If you see a spray, your leak is on a pressure line not a return line. Have your wife get down close when you activate and see where the leak is. Good luck.

 

[spankyscamp]

If you use a piece of cardboard. Place it above the respective part to make sure it is from there are above.

 

[HAR]

I agree with Tinhack and acarr1. There is also a fluid leak higher up and doing a good pressure wash and letting it dry first will be the first step in locating any possible leaks. As all have pointed out, pressure leaks are dangerous, and unless you are bent on getting rid of your wife, use a piece of card board and not her face to locate the possible source. Placing the cardboard as close to the engine as possible will help lead to the exact location of the pressure leak. Curious, I looked up the Model No. shown in the photo, thinking that was the hydraulic pump, but it appears to be the engine model nbr plate for your Kioti tractor.

 

[yank50]

I changed the o-rings on this connection to the hydraulic pump but it looks like fluid is still leaking out at the connection. What am I missing?

Best guess is the bent hydraulic pipe has a stress crack in it either under the fitting or or at the swedged end. Not uncommon after many cycles. I would replace the hydraulic formed line

 

[NYlumberman]

Not so sure about pressure washing, I always thought the “clean spot” was the best tell when identifying hydraulic leaks.

 

[texaswren]

Very likely the Kioti uses metric O-rings, which look similar to SAE dash number O-rings, but are not a match. Did you get the O-ring from the dealer, or just put in the closest match you could find? Also, hydraulic O-rings for flange connections must be 90 durometer. Most O-rings you get from an auto parts store are 70 durometer, which WILL leak.

 

[dodge man]

Is the original picture shot looking down or sideways?

 

[future_vision]

Very likely the Kioti uses metric O-rings, which look similar to SAE dash number O-rings, but are not a match. Did you get the O-ring from the dealer, or just put in the closest match you could find? Also, hydraulic O-rings for flange connections must be 90 durometer. Most O-rings you get from an auto parts store are 70 durometer, which WILL leak.

From the dealer