I READ OLD FOCRUM POSTS AND FOUND OUT THERE ARE 3 SAFETY SWITCHES THAT NEED TO BE CLOSED TO ENABLE POWER FROM KEY . CAN SOMEONE TELL ME WHERE THEY ARE LOCATED ON B-1700 AND SHOULD I MEASURE FOR CONTIUITY, OR SOMEHOW MEASURE 12 V. I HAVE ONLY OWNED TRACTOR A SHORT TIME. THE ORIGINAL KEY SWITCH PHYSICALLY TURNED HARD, SO I REPLACED WORN OUT SWITCH WITH A BRAND NEW SWITCH, WHICH WORKS FINE. I HAVE A WSM REPAIR MANUAL FOR THE TRACTOR, BUT THERE ARE NOT MANY DIAGRAMS. I WOULD GREATLY APPRECIATE HELP FROM ANYONE!!!