hi all, I am new here and hope someone can help! I have a Hitachi ex60-3 and have been messing around with a forestry attachment on the hammer cuicit. This is working fine now but the machine is playing up. All works fine from cold. After 30 mins use i suffer a lack of power in all hydraulics (except hammer curcuit) and very slow. Also the auto idle and other computer funtions fail. I couldnt use the quick hitch, it wouldnt activate the ram to release the bucket, this is on the low pressure curcuit. if left for 40 mins or so all is back working and fine again. Oil not getting hot. Anyone have any ideas? Thanks in advance.
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