Posted by Aaron9876 on March 09, 2016 at 09:52:05 from (199.36.82.148):
Hello all,
Im in the process of building a hydraulic post hole auger. Hydraulic motor driving the auger by chain and sprockets ect. Where i run into some questions is how to rig up the hydraulic controls. The tractor i plan to run it off of is a ford 4400 with a front hydraulic pump and loader. I would like to keep the loader functional while using the auger without having to switch hoses back and forth constantly. I have ordered a 30 gpm single spool open center hydraulic valve for a log slitter to run the hydraulic motor. This should give me forward and reverse on the motor. The motor is a low speed (200 RPMS) high torque so im not to concerned about a hammering effect when the motor is shut off. What i need to know is if i install the new valve in series downstream of the existing 2 spool valve for the loader are there any problems i need to be aware of. I will adjust the pressure relief to match the tractors spec max pressure. I've had to replace the spline coupler between the pump and motor once before and ide like to avoid doing that again. Running the valve in series downstream should mean simply plumbing the existing 2 spool valves output into the input of the new valve...ect. This would give me 3 controls that could be operated independently one at a time. I could also easily keep adding valves this way later down the line if i wanted.
If anyone could give me a reality check of whether this will work or not it would be much appreciated.
I guess my main concern is having 2500 PSI in the out port of the existing valve that is probably meant for only a few hundred PSI.
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