horse7
Gold Member
Was out moving dirt-- hard digging into old dirt pile, which causes the overload valve to bypass at times.
After moving a few buckets of dirt with no issues, I was driving back to the pile when I got a phone call, turned off the tractor (bucket and implements off the ground), then restarted and proceeded to the dirt pile and found out that the high pressure hydraulics were out (no bucket (except to drop the bucket), no 3pt raise, no auxiliary... unfortunately, I dropped the bucket while fiddling around at first). No unusual sounds or anything... just high pressure stopped working. Mechanical connections to spool valves seem to operate normally.
Low pressure hydraulics ok (steering and EHSS fine), and fluid levels look ok (I did not check the engine oil level, did not think to do that); no error codes on console; no sound of the overload valve bypassing. Manual implies either failed high pressure pump or failed bypass.
Any other possibilities on a TN70, and is there a reasonably simple way to differentiate the overload valve vs. the high pressure pump. Otherwise its another dealer repair... time is pretty tight for the next few months.
Thanks.
After moving a few buckets of dirt with no issues, I was driving back to the pile when I got a phone call, turned off the tractor (bucket and implements off the ground), then restarted and proceeded to the dirt pile and found out that the high pressure hydraulics were out (no bucket (except to drop the bucket), no 3pt raise, no auxiliary... unfortunately, I dropped the bucket while fiddling around at first). No unusual sounds or anything... just high pressure stopped working. Mechanical connections to spool valves seem to operate normally.
Low pressure hydraulics ok (steering and EHSS fine), and fluid levels look ok (I did not check the engine oil level, did not think to do that); no error codes on console; no sound of the overload valve bypassing. Manual implies either failed high pressure pump or failed bypass.
Any other possibilities on a TN70, and is there a reasonably simple way to differentiate the overload valve vs. the high pressure pump. Otherwise its another dealer repair... time is pretty tight for the next few months.
Thanks.