- Joined
- Dec 31, 2010
- Messages
- 937
I was asked to check for a bent quill/spline shaft from an unknown brand of drill press given to my son in-law. After cleaning in the solvent tank I put it between the centers on the lathe; the splined shaft end had a centering hole and the jaws in the 5/64 - 1/2" chuck appeared to be open equally. The splines near the headstock have 0.002" TIR and at the middle near the upper quill bearing the same. Running the indicator lengthwise on the splines gave a 0.001" runout on one, but nothing on the others. After relocating the indicator to the spindle much the same type of readings exist. After returning the assembly to him today he told me the chuck started wobbling when the quill was extended about half way. My assessment is bushing wear or damage in the housing holding the quill. Is there something else that cold cause this problem?
Thanks for the help.
Ray
Thanks for the help.
Ray