Hitachi c15fb User Manual - Page 11

Item Phenomenon Cutting operation results in rough cutting surfaces. Possible Cause (s) Standard Countermeasure (s) I. The workpiece is not secure- ---- Securely fix the workpiece with ly fixed in position. Vise (A) [79]. J. The Turn Table is not se- ---- When performing cutting opera- curely fixed in position with the tions, securely tighten the Side Side Handle [116]. Handle [116] without fail to fix the Turn Table in position. (The Ball Index Settings at 0˚, 15˚, 22.5˚, 30˚ and 45˚ are affected by vibration, and are not sufficient to securely fix the Turn Table.) K. Excessive looseness or excessive tightening of the turn connection between the Hinge [119] and Gear Case [53]. ---- Repair or adjust affected parts as described in Item 1. G, above. L. Curved or rough surface of the workpiece causes workpiece movement during cutting operation. ---- Plane the surface of the workpiece to remove defects, and recheck the cutting. M. Excessive vibration during cutting operation. ---- Check each of Possible Causes A, B, D, J and K, above. --- 11 ---