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Mobile machine LS problem

Mobile machine LS problem

Mobile machine LS problem

Hi guys, quick one for you (potentially)

Mobile machine, driven almost entirely by hydraulics. Very slow so I take some readings.

Main pressure is 15 bar at idle when it should be ~25bar, LS is 4 bar. The Delta P stays around 10-11 bar right up to maximum pressure of 280 bar. Delta P should be around 17bar on this machine but for some reason it has dropped. The LS adjustment on the pump has not been touched.

I am thinking either LS leakage somewhere or perhaps a damaged pump, part of the LS system, not the actual swashplate.

Can anyone offer a different insight into this problem?


RE: Mobile machine LS problem

I have seen swashplates wear out where it pivots on the steel pins (no bearing between swashplate and pin) causing it to stick thus preventing full travel. Mobile hydraulics is not my thing so wait for others to respond.

RE: Mobile machine LS problem

Managed to solve this one myself. LS spring had actually been adjusted and repainted making it look new. Simple solution after all that.

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