I have a husqvarna z48 ztr that i have had problems with for the last 2 years, I have had the control arm switches stop working 7 times, each time it was in the middle of cutting lawn, I have taken the mower back to place i bought it, all times, and had swithes replaced and had wiring cables checked. at$50 a visit, this is getting too much. Each time they tell me to keep dirt out of the switches. Kind of hard to do when dust and dirt is kicked up under seat. It has been the same with Husqavarna hot line, either no answer or kept on line literaly for days. If anyone knows how to jump the safty switches information would be helpful?