I'm trying to figure out how to hookup a Showtime hydraulic thumb to my Kubota U17 mini excavator. There are two factory hydraulic lines running from the boom to a 2-way foot pedal on the floorboard. From there they run back to the control block. Unfortunately, there's no relief valve on the control block. However, there is a lever that switches the auxiliary circuit from one-way (for breaker) to two-way (for thumb).
Nearest I can tell, what's left to figure out is how to install the relief valve (or valves) and the return line back to the tank.
Do I need one relief valve for each auxiliary line, and if so, what type? Should I mount the valve(s) under the floor near the control block and then run a separate return line to the tank? Or should I put the valves on the boom and run the return line back to the tank from there?
Any help will be greatly appreciated!
Nearest I can tell, what's left to figure out is how to install the relief valve (or valves) and the return line back to the tank.
Do I need one relief valve for each auxiliary line, and if so, what type? Should I mount the valve(s) under the floor near the control block and then run a separate return line to the tank? Or should I put the valves on the boom and run the return line back to the tank from there?
Any help will be greatly appreciated!
Kubota U17 Thumb Install
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