newcomer9747
Nouveau
Hello I'm new to this forum and I hope my first post finds some answers... So I recently received a Huron KU6 feedbox into the shop for repair. Not much information was given except that the customer complained that the rapid wasn't working. So after two days of diagnosing the problem and studying the operation manual translating it word by word, I found that the motor was previously wired in the opposite direction, thus the rapid slip clutch was turning the freewheel nut in the wrong direction which is the freewheeling direction. So I rewired the motor to the correct direction (correct me if I'm wrong but I believe the correct direction should be CW if looking from the back of the motor) and tried to engage the rapid slip clutch. It appears that in order to rapid feed, the 3rd gearing selector (7,8,9) has to be disengaged, either between 7&8, or between 8&9. Otherwise, engaging the rapid feed while it is in cutting feed mode would only try to brake the transmission and thus possibly burning the rapid feed clutch.
I don't have the whole machine to work with, just a french manual, this forum, and tinkering with the box. I am however, very intrigued and awed by this 70 year old machine design. I just want to know if the above operations that I described is correct? Mainly the cutting feed has to be disengaged via the 3rd gear lever? That the motor should be turning CW when looking from the back? What is the correct torque setting of both clutches at both engage/disengagement? The rapid feed rate speed is a function of how hard the lever is pulled? Where can I get replacement for the clutches? It appears that the company, S.I.G.M.A, that made these clutches are no longer around? If I cannot get a replacement, what material should I use to make the outer and inner discs?
I don't have the whole machine to work with, just a french manual, this forum, and tinkering with the box. I am however, very intrigued and awed by this 70 year old machine design. I just want to know if the above operations that I described is correct? Mainly the cutting feed has to be disengaged via the 3rd gear lever? That the motor should be turning CW when looking from the back? What is the correct torque setting of both clutches at both engage/disengagement? The rapid feed rate speed is a function of how hard the lever is pulled? Where can I get replacement for the clutches? It appears that the company, S.I.G.M.A, that made these clutches are no longer around? If I cannot get a replacement, what material should I use to make the outer and inner discs?