580B digging action got really slow

[n175h]

I spent Saturday morning digging out a big stump. As I was digging the action of the bucket, tower, and arm became really slow. Engine temp was ok, rpm was about 1700. It began the work normally, but after 30 minutes I noticed the difference. If you remember I changed my hyd fluid and filter about a month ago and posted that the pressure on the dash gauge never came up out of the bottom of the green. It still doesn't. You think that may be a problem? I'm not sure what to think.

Here is the link to the post with the gauge I'm referring:

http://heavyequipmentforums.com/Forum/showthread.php?t=17745
It is about the 10th post down.


David

 

[stumpjumper83]

did you check pressures? I'd be suspicious of the pump being worn...

 

[n175h]

did you check pressures? I'd be suspicious of the pump being worn...

Where do I check it? and what pressure reading is a normal range?

 

[stumpjumper83]

when I checked the pressures on my mini hoe, we plumbed the gauges right into the circuit. With the mini, a tacheuchi tb53, reliefs were factory set at 3k psi.

I'm going to guess that your 580 is going to be simular to my 450c deere though and run 2300 -2500 psi.