Rapida 106 Oil Leak

I've got an oil leak and KBA are saying that the air clutch is possibly leaking and creating excess pressure in the oil sump. This in turn is forcing oil out. I'm thinking of adding a vent to eliminate the pressure. Any ideas?

 

Hi sir:
Hope you are well
The system in KBA, must be constructed very easy.
You must test the 1) Gear pump, if they are clean or Broken Teeth 2) test the relief valve 3) FILTER 4) check Valve and repair or replace.
See if the float in the container is contantl drainer. In that way you can see if the system is draining the oil , and the sistem get it Air.
Repair the leak testint the 4 mentiones devices in the system oil. Tight very well and replace any O-rings , or check in the system. Use Soap for to
see where is the leaking.