Hitachi 120-3 Hydraulic / Electronic problems

dimanche 31 décembre 2017

Hi,
I have a Hitachi 120-3 excavator which has hydraulic / electronic problems. The machine has very slow hydraulics including the track motors. It operates a little like the excavator in this video

I have been trying to diagnose the problem over the last few days and the following is what I know or have found from searching the internet.

It seems that there are 4 sensors controlling the whole machine.
- angle sensor
- engine speed sensor
- DP sensor
-...

Hitachi 120-3 Hydraulic / Electronic problems

Hitachi 120-3 Hydraulic / Electronic problems

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