Hi...I have a cat 311 problems...when the enggine cold its work normaly but when enggine getting hot/work in 1 or 2 hours this machine work very slow n looks no power. Anyone can helpme to solve this problem...thanks:Banghead:Banghead
check your hydraulic oil...and these filter..maybe you need to change with new one
Do the engine loose rpm when hot or does it just loose hydraulic power?