I have a problem with my sol's 1863. They called with a hydraulic problem. No lift and no drive. I checked and there was no fluid on the stick. No choice but Ace so bought 1/2 gal. hydraulic fluid. This didn't get to the stick, and still no hydraulic. Next day, tried draining that and put a gallon of NAPA hydraulic in it, that didn't solve the problem. Any ideas? Thanks in advance to all who help.