Blew my cone seal on my final drive .Is there an inline filter on the return lines?put another drive in and the same thing happened after 30 minutes ,so I have problem of the drive not releasing the pressure.Has any one have any input?Need to find hydraulic schematics on the Hitachi ex75ur ?Any ideas?
Would seem you have a casedrain problem them you'll need to find out what is causing that.BTW not being picky but it's not a final drive problem yet, it's a hydraulic motor problem. This helps getting help
Same problem. Blew 2 of them