I was having issues with the unit shutting down High A E temp code 1 on the on board computer screen I tried topping the oils up and coolant but still shutting down after 20 mins on full demand. I had no issues with oil in my lines the only reason I swapped the air oil separator was it was because it is over the 1000 hours since last change and I topped the oil up on a job (hydraulic oil) not the proper grade but will do me for temporary measures as I couldn't get hold of no rotary screw oil. knowing soon as I get back I was planning a 1000 hour service
500 hour is the same service with out the oil air separator.
my 1st feeling was the rads was blocked and thats not cooling the oil 60/40 split on the rear 40% oil cooler 60% engine coolant turns out it was a little dirty but not enough to make her shut down.
back to work tomorrow on the hopes its fixed the issue as I have no means of running the unit up under full load in my yard :( im feeling confident as ive also removed the thermostat (coolant diverter) Its a must that this goes back in but im going to run it for 1 day without to see if its fixed then pop it back in as it is opening in a cup of boiling water but for what it takes to try it without I will risk it for 1 day then if it does shut down after I know what to order :)