GRIZZLY G8689 OWNER'S MANUAL Pdf Download | ManualsLib
Page 20: Test Run And Spindle Break-In. 10 minutes on a low speed. The mill should run smoothly with minimal noise and vibra- tion. The Model G8689 has two speed ranges: Low —If you suspect the mill is not working cor- range is 0–1100; high range is 0–2500 RPM.