That needs to be calculated using the available GPM and pressure from the aux ports on the loader. That info should be in the manual or machine specs.
Then size the hydraulic motor around those numbers.
It is essential to do your homework first. Hydraulics are expensive and unforgiving. Not something to leave to guess work or close enough.
Here is a calculator to determine the needed motor. The motor is rated by volume per revolution and torque per PSI. Low displacement motors turn fast with less torque, high displacement motors turn slow with high torque. Keep in mind you can chain drive the brush to adjust the speed and torque, and add a needle valve to fine tune the speed.
If you're going used, you'll need to look at part numbers and determine the displacement. Hint, a thin center will be low displacement, a wide center will be high displacement.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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