I had a Hydro Gear pump fail on a Scag Cub. It had a noisy bearing and I caught it before any fatal failure occurred. I am concerned about cleaning up before I put in a new pump. I took the oil reservoir off and washed it out. I am replacing the return lines to/from the failed pump. I will put on a new filter. I am concerned about how to try to flush the wheel motor on the side that failed?