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Re: hitachi 120-3 hydraulic problem, need shop manual


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Posted by AJ. on July 27, 2012 at 16:17:49 from (92.4.144.53):

In Reply to: hitachi 120-3 hydraulic problem, need shop manual posted by wilko on July 23, 2012 at 21:30:54:

For a manual try www.tradebit.com, I may be totally wrong in what I say because the machines we get in the UK are often different than the ones sold in the US,if it the same as its UK cousin I doubt if there is anything wrong with the hydraulic pump,the pump on our versions is a single variable flow pump,the oil is dived in the main control valve,the machine has an electronic brain that senses the loads and diverts the pressure accordingly,the control unit seldom gives trouble but it could prove well worth while to remove the multi-plug from it and replug it a few times in case there are any bad connections,if that brings no joy the next best thing to do is have an engineer from the dealer have a look at it,he will have the OBD reader and pinpoint the trouble in minutes,no good pulling the pump to bits for an o'ring in the valve block.

Good luck

AJ


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