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Hitachi ex120-5 hydraulic excavator engine overheating

Send solution my email address asitha@unionapp.com

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We have no solution as we have no info on commercial equip like this. Sorry

Posted on Feb 22, 2012

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SOURCE: 330 excavator with a c9 cat engine, heavy SMOKE

At the time you made all the above repairs, did you replace the "throw away" turbo charger? The turbo charger commonly sucks oil, and it is not repairable.

Run it without the inner & outer air cleaner. If it isn't the turbo, run the injector cut out test. If the injectors are ok, then you need to replace the injection system hydraulic pump, which is also unrepairable.

Posted on Apr 23, 2010

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Why won't my excavator stop overheating?


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