Step-by-Step Guide: How to Perform Shaft Laser Alignment

shaft laser alignment

Shaft misalignment can lead to increased wear and tear, reduced equipment lifespan, and decreased energy efficiency. Using a shaft laser alignment tool can help you achieve precise alignment, minimizing these issues. This step-by-step guide will walk you through the process of performing laser alignment.

Step 1: Preparation

Gather the necessary tools and equipment, including a laser alignment system, safety gear, and the alignment specifications provided by the equipment manufacturer.

Step 2: Safety Precautions

Before starting the alignment process, ensure that the machinery is safely shut down, and all energy sources are disconnected. Follow your organization’s safety protocols and wear appropriate personal protective equipment.

Step 3: Mount the Laser System

Attach the laser transmitter to one shaft coupling and the laser receiver to the other coupling. Make sure they are securely mounted and aligned with the rotational axis of each shaft.

Step 4: Initial Measurements

Turn on the laser system and take initial measurements. The laser system will provide real-time feedback on the alignment condition, indicating the current misalignment values.

Step 5: Adjustments

Begin making adjustments to the machinery. Depending on the alignment condition, you might need to adjust shims, move mounts, or modify the coupling positions. Use the laser system’s readings as a guide to achieve the desired alignment.

Step 6: Iterative Process

Perform iterative adjustments and measurements. Continue making small adjustments and re-measuring until the laser system indicates that the misalignment values are within the acceptable range specified by the manufacturer.

Step 7: Final Verification

Once the misalignment values are within tolerance, recheck the entire alignment. Ensure that both the horizontal and vertical alignment is accurate. This step helps eliminate any residual misalignment.

Step 8: Documentation

Document the alignment process, including initial and final measurements, adjustments made, and any notes regarding the alignment condition. This documentation is valuable for future reference and maintenance.

Step 9: Recheck Regularly

Shaft misalignment can occur over time due to various factors. Schedule regular alignment checks to ensure that the machinery remains properly aligned and to prevent premature wear and inefficiencies.

Step 10: Restart and Monitor

After completing the alignment process and ensuring that all safety precautions are in place, restart the machinery and monitor its performance. Proper alignment should result in smoother operation and reduced vibrations.


Performing shaft laser alignment is a critical maintenance task that contributes to the longevity and efficiency of rotating machinery. Regular alignment checks and maintenance will help your equipment operate at its best, saving you time, and money, and preventing unplanned downtime.