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    Hitachi zx75 ur. Thumb/swing boom issues

    Ok. Pictures. Here we go. Thumb 1st pic. Thumb cylinder 2nd pic. Direction control unit. 3rd pic. Possible pressure release valve but I’m not sure. The black house that comes out of the right side of direction control unit(see 2nd pic)goes into this box which is located right next to main...
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    Hitachi zx75 ur. Thumb/swing boom issues

    this is my first post in here. Please let me know if the post is not clear and concise enough…. Ive owned a hitachi zx75 ur for about 5 years now. My first machine. I live on an isolated island without a machine mechanic so am having to figure out how to do maintenance and repairs best I can...
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