Hi guys,
New member here. I just picked up a lightly used PCNC1100 mill and I'm trying to get the power drawbar working. I aligned the cylinder with the drawbar, have about 1/8" gap between the air cylinder bolt and drawbar, everything is nice and level, and I have 100-110psi going to it.
When I press the release, the cylinder just lifts and tips up to the left. It doesn't even compress the Belleville washers at all. I am getting about 1" of stroke on the cylinder but it pushes itself out of the way. I took it apart and I notice quite a bit of wiggle where the drawbar mounting plate is supposed to pivot on the eccentric mount. The metal is extremely thin in this area for some reason... it looks like a flawed design. As I understand it, the mechanism is designed to start to tilt, then bind on the pivot mount and that is where the holding force comes from.
Has anyone else had this issue? What should I do? This really looks like a manufacturing or design flaw to me but my searches aren't showing much.
New member here. I just picked up a lightly used PCNC1100 mill and I'm trying to get the power drawbar working. I aligned the cylinder with the drawbar, have about 1/8" gap between the air cylinder bolt and drawbar, everything is nice and level, and I have 100-110psi going to it.
When I press the release, the cylinder just lifts and tips up to the left. It doesn't even compress the Belleville washers at all. I am getting about 1" of stroke on the cylinder but it pushes itself out of the way. I took it apart and I notice quite a bit of wiggle where the drawbar mounting plate is supposed to pivot on the eccentric mount. The metal is extremely thin in this area for some reason... it looks like a flawed design. As I understand it, the mechanism is designed to start to tilt, then bind on the pivot mount and that is where the holding force comes from.
Has anyone else had this issue? What should I do? This really looks like a manufacturing or design flaw to me but my searches aren't showing much.