[lendaddy]

Well, it's 50" long linear encoder with a "read head" that travels along it and lets the servo drive basically know where it is(via magnetic pulse). There is a .004" air gap between the read head and the 50" scale that it reads from and debris between the two has eaten into the read head and it no longer works correctly. I am wonderingif these heads can be repaired or not. Or if diagnostic testing can be done to see what is actually wrong with the head.