I have had an E200B excavator here for years and has been a great machine, I have an intermitent problem that I am having trouble finding and if anyone has any ideas they would be appreciated.
The machine will be working fine when the bucket stopped curling and the left track stopped working. if I move the boom up slightly at the same time everything works again. Sometimes though I need to move both tracks together and lift boom for it to all work again. Once working it might keep working for a couple hours or just a couple minutes. I have had mechanics out and they checked lines and took control valve spools out that run the track,bucket and everything looked fine.It acts like something making a valve of some kind stick. Where it comes back each time I don't think it would be a solenoid but I don't know.Machine # 4SG07502 with the Mitsubishi engine, Any thoughts and ideas are greatly appreciated.Even where to pressure test to narrow things down
thank you , Alk
The machine will be working fine when the bucket stopped curling and the left track stopped working. if I move the boom up slightly at the same time everything works again. Sometimes though I need to move both tracks together and lift boom for it to all work again. Once working it might keep working for a couple hours or just a couple minutes. I have had mechanics out and they checked lines and took control valve spools out that run the track,bucket and everything looked fine.It acts like something making a valve of some kind stick. Where it comes back each time I don't think it would be a solenoid but I don't know.Machine # 4SG07502 with the Mitsubishi engine, Any thoughts and ideas are greatly appreciated.Even where to pressure test to narrow things down
thank you , Alk
Cat E200B Excavator Hydraulic Trouble
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