This is a case study provided by my manager to help me learn hydraulics and understand. I think he just wants general reasons as to why the oil reservoir is overheating in the current circuit as shown. He simply just gave me this circuit and said the system has worked for many years but one...
Thankyou i didnt realise the use of valve 6 until i understood that it is working as a pilot signal to valve 5. I was assuming it was in the wrong place.
So i presume a combination of what you have suggested and the rest about internal leaking etc could be the possible reason why the oil...
Thanks guys I have understood the problem based on your replies. I think he is trying to trick me with the position of valve 6 as you suggested and purposely drawn the circuit incorrect.
I didn't notice that currently as the circuit is drawn the only way to unload the system is at pressure...
I was thinking it was a result of the cavitation as you say.
I haven't pulled the strainer no. Only the oil the oil reservoir is so hot that you wasn't able to touch it and normally its at ambient temperature. The oil level was checked and its at correct level and the regular oil sample checks...
My manager has shown me this circuit its for a welding station for my revision. Its a circuit hes ran for many years thats never had problems but all of a sudden the oil tank is very hot on inspection and the system seems to be losing its ability to work. Hes asked me why and what improvements...
