Measurement points are recorded at three fixed clock positions: 9, 12, and 3 o’clock. This is the classic three-point method which can be used in most cases. Below are some applications where this mode is preferred: Vertically-oriented alignments: When performing an alignment on a vertical machine the automatic inclinometer used to determine the shaft’s rotational … Continue reading Shaft Alignment Measurement Mode: 9-12-3 The Classic Three-Point Method