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  1. U

    installing hydraulic thumb

    Ok this first drawing shows the existing setup above, and alternative 1, using a D05 sized solenoid valve and subplate, relief valve, and shows where old aux hose Ts shall be plugged. These hoses will mount to ports A and B with metric adaptors. The in hose to breaker solenoid will go to P with...
  2. U

    installing hydraulic thumb

    first picture shows backhoe valve stack with accessory hoses in foreground Second picture shows outlet section in foreground; the smaller teed in pipe is one of the accessory hoses. The larger pipe runs to the solenoid Third picture shows the other side of stack. The main valve of the stack in...
  3. U

    installing hydraulic thumb

    hammer hydraulics 101 please For installing the thumb, I have decided against mounting the valves out on the dipper, so I want to use the existing hoses that are plumbed for an accessory hammer. If I am to use these hoses, then I wonder if I should choose a solenoid control valve and run it...
  4. U

    installing hydraulic thumb

    Hi, I am going to install a hydraulic thumb on an Ingersoll Rand backhoe. Hydraulics are open center. I have read several threads and I think I like the idea of using a solenoid diverter off of the bucket section with a momentary switch for the thumb. I am confused about which valve to use...
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