Hi everyone!
I have a Hitachi Ex-200-2 excavator, that has a problem that niether a few local mechanics, & I can figure out.
The machine was working fine, but then it just started loosing force on any hydraulic movement, with in 5-10 minutes.
Now the machine boggs out when you do any hydraulic movement, but it turns on. The engine seems to be fine, but the moment you do any hydraulic movent forward reverse, stick, boom etc. it boggs out, & kills then engine. Also it wont let you rev up engine, why?
It also has a hydraulic thumb that works sometime. It works the 1st 1-2minutes upon turning on machine but then it wont open thumb.
Can anyone help please???