BX23 hydraulic seepage under the seat

[Tollster]

Curious if its common at all to get any seepage from fittings at all under extended use?

I have a BX23 TLB (330 hrs) and have been using it pretty good for the past 3 weeks. I notice about 5-6 drops of fluid on the ground after using the BH under the rear PTO output shaft.
I gave it a look and noticed oil on the rear PTO case, around the rear lift arm pivots, and near what I believe is a seat switch or something on top of the rear PTO case. It was white nylon with a red button in the middle on the top of the case, under the BH hydro couplings. However the couplings don't have any oil on them.
Its very tight and I did not see anything spraying. The BH has been getting a rigorous work out as has every other part. Any ideas what it could be?
Thanks

 

[gwdixon]

There is a hydraulic reservoir vent on the top of the transmission in that area. Sometime when the transmission gets hot some fluid will be expelled. That is by design and is not something to be concerned about.

It looks like a crooked rubber tube, maybe 3/8" in diameter.

Since you have been working it hard then that may be the answer.

My suggestion would be to clean up the area real well, maybe even with soap and a power wash, and check it daily to see where the oil is originating.

 

[Tollster]

Thank you, its away from the house, but I will wipe it down, and use a flashlight and mirror to see if there is anymore leakage.
Its sounds like it could be a vent as you said as the oil appears to be more of a mist (uniform coating) on many of the parts at the top of the rear PTO case with some pooling in the casting recess areas.
I know its been very warm here for some time and I do have a brotec belly pan that may inhibit cooling to some degree. I know when I looked at it after use yesterday, the fittings where very hot to the touch. Would the hot fittings be typical after a long workout?
I ran it for about 3 hours between 3-6 pm, it was 30% BH and 70% FEL and tranny, 4x4, low range at full throttle.
I was cutting in 2 access points from a basement pit to the next elevation from using a pile of chipped/hammered stone from a ledge of various sizes. Some required the BH to be removed due to the size.
I always run full throttle when operating the BH and FEL, to promote cooling and efficiency .
Thanks you, I have been trying not to over work my BX as the project really demands larger machinery. I just want to make my cleanup more accessible to the BX, which I have been using for the perk test, log skidding, rock picking, and stone wall work.

 

[gwdixon]

A backhoe will definitely heat up the hydraulic fluid beyond what a FEL only will do.

My L48 cylinders will heat up to the point of too hot to touch. Just recently went to Amsoil 5w-30 hydraulic oil. It still heats up but doesn't shudder as much due to cavitation or thinning fluid.