Got to put a few hrs on the 4105 ! WOW !! I LOVE IT !!! its great ! I pused down about 20 ft wide and 50 foot long , tree filled sandy area . Bushes , trees , the 4105 dug it out ! I also learned how to scoop and fill up holes !! My wife got to drive it alot , I would pick up the small roots and throw them in the bucket , then she would go dump it ! Fun day . I am off all week , so working JD HARD !!! The only problem is the yellow " fill knob' above center link , is leaking
. I took it out and flipped O ring around and that made it worse. Buying new O ring Tues . Called dealer , he said its a vent and filler knob . So its ok to vent some ?????? I hope its not going to be a problem . I did cjeck fluids , 3 Xs with 3 being full , its on 2 x . I did work the FEL HARD for HRS !!! maybe I over worked it , and it pushed out some fuild out the VENT in the knob?