What is the primary purpose of using a dial indicator during alignment procedures?

The primary purpose of using a dial indicator during alignment procedures is to detect misalignment between the shaft and coupling. The dial indicator is a precision measuring tool that provides accurate readings of alignment discrepancies by measuring the offset between the two components. It captures subtle variations in the position of the shafts and couplings that might not be visible to the naked eye.

When conducting alignment checks, the dial indicator can assess the axial and radial alignment by showing how much the shaft moves as it is rotated. This data helps technicians adjust the positioning of the machinery to ensure that both components are aligned correctly, which is crucial for efficient operation, reducing wear, and preventing potential equipment failure.

The use of the dial indicator is a standard practice because it helps ensure that the machinery runs smoothly, minimizing vibration and extending the lifespan of the components involved.