Leaking hydraulic oil around the turntable

I'm sorry to hear about the issue with your Shibaura P17F hydraulic pump. When facing problems with the hydraulic system, it's crucial to systematically troubleshoot potential causes. Start by checking the hydraulic fluid levels to ensure they are at the recommended level. Inspect for any visible leaks around the pump, hoses, or connections, as leaks can lead to a loss of pressure. Additionally, examine the hydraulic filters for any signs of blockage or contamination, and replace them if necessary. Verify the condition of the hydraulic hoses for damage or kinks, and bleed any air from the system that might be affecting pump performance. Testing the hydraulic pump's output pressure with a gauge can help identify if the pump itself is malfunctioning. Refer to the equipment's manual for specific guidelines and, if needed, consider consulting a professional technician for a more in-depth inspection and repair.

Not a CAR...

Skid Steers... like yours: we call bob-cats here (USA)...

EASIEST & most common are cracked & loose hoses.

You have a serious hydraulic pump & piston system on all the configurations I've been able to pull.

Any damaged SEAL EVERYWHERE in that circuit
is going to be hydraulic oil...

Crank-case, transmission case... (etc.).

What you are going to have to do is pressure clean the wettest areas... wipe them down... and make your EYES & BRAIN take a look around for the most severe leak...

Fix it... and repeat the process until you
have things nice, tight and dry...

Carnac the Magnificent

6 qts engine oil . 8 qts. 80-90 front diff. 12 gallons hydraulic oil John deere hyguard trans/hyd or Traveller trans/hyd oil at tractor supply

Anon, clean/spay degreaser on all lines to remove hyd. fluid and wipe all the lines done to dry them, this will enable you to see which line is leaking. Now that you will be able to spot leak, you will be able to tighten or replace line with a wrench.
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by bleeding lines where exactly did u do this ? , the place id try 1st is right off the pump to the dist block (carefully!!!) if no pressure there then a more aggressive repurdge of hyd sys is needed using another machines hyd system connected to remotes inputs off the dist block
reason 4 this is that hyd oil pumps don't just pick up oil again when run dry an have to be helped to pressure up again , Also another possible cause is that pressure relief is stuck open , this doesn't allow any pressure to build up

ive heard of folks doing it without a crane but i would not try it , alignment is too critical with getting guides and stops back in and with nothing to move boom that would be too difficult

anyways: suspend boom end with double straps from crane , disconnect hydraulic/electric swivels/plugs at truck end lift end of boom slightly with boom all the way extended straight out , remove acess panel (both sides) at jct of upper/lower boom section . remove C clip one side drive out pin oppisite side (wiggle boom to clear pin) locate stops in lower section boom end unbolt , slowly pull upper boom with crane away take care of hydraulic lines and electric wires set on floor on wood cribbing , locate bottom of cylinder truck end find C clip and pin Might be behind a trim cover that might need to be remove drive out pin also remove bottom cylinder hyd hose connect crane to cylinder end move out a foot or so remove top cyliinder hydraulic hose then carefully slide out cylinider with crane , Note if your valves are not tight and new oil will leak back and cause boom base to sag when you unhook hydraulic hoses , your gonna need to block this up with wood cribbing just in case

reverse removal process to install new one , also i would not just install a new seal (you can) with out having cylinder recromed I'll bet it's rusty thats what tears the seals up
and allways replace entire oil volume in hydraulics your old seal is in old oil not good for the new one

Possible the differential steering motor could be bypassing hyd oil to the transmission

are you sure it's not one of them steering hoses under there ,D** cows chewed on mine and made em leak also return line for hyd pump runs down side and under front of engine to reach pump on front of engine , it's thin metal and does rust I've had to use JB weld/bug screen on mine to fix rust holes before

Sorry but it will be the cylinder. The oil is leaking around the worn seals on the ram or past score marks on the cylinder bore. It goes up because the pump generates more flow than the leak. It the relief valve was faulty it would not go up but by pass back to the tank.

have a767 handpump had a leaky swivel joint and oil leaked out need to refill