West Central Alberta Coldest, wettest edge | I hooked up 2 motors in series to run a PTO grain auger and bin sweep in a building I couldn't get a tractor into, and didn't want the fumes. Worked fine, until the bin sweep stalls, and it stalls the auger too. I wasn't sure if the seal was meant for back pressure, but they must be as the motor is reversible, so there must not be a dedicated internal case drain. As others stated they have to run the same speed, but I suppose the 2nd will have hotter oil, and could bypass slightly more, negligible. Since both have to run at the same speed, they will both be limited by the one with the bigger torque load. If they both have the same load, and you start with 2000 psi, it should drop to 1000psi to feed the second, and torque will be equal. |
Hydraulic motors in series
