Hi have a D6R 2012 MODEL Had it for 4 years now only last week hydraulic oil overheating only when turning left & right. Have replaced steering motor & also changed oil & filters also checked pressure relief valve it was clean & working.. any thoughts pls ??
1st thing you need to do is verify that it is actually overheating. Gauges and senders/sensors do fail. How is the overheating being determined?
Hi I have put new temp sensor in already no different. Also check with a heat laser gun oil in tank is reading 100° pipes running to oil cooler reading 70° on inlet & out let of cooler
Surely that can't be right. There should be a temperature delta in/out of the cooler. What's the machine S/N.? Need to see what the cooler setup is on it and if there is any sort of cooler bypass valve for when the oil is cold.
The only relief valve I found was in tight spot between hydraulic tank & cab had the big spring inside valve
Thanks for the help so far guys.. I think pump might be buggered took case drain off at idle it pumped out 20L in 50sec thats not good im guessing
We haven't done anything yet. Still waiting for a S/N.......
You didnt get my pic?? it is S6T00472
TBH I thought that was a view of the relief valve you found. I never looked at it. My bad. Keep an eye on your messages. Stuff coming your way.
Thanks for info. Old pump buggered it measured 3000PSI at idle. New one is on now everything is all good
Good on ya.