What simple tool is recommended to verify belt-driven pulley alignment?

What simple tool is recommended to verify belt-driven pulley alignment?

• A. String or straight edge.
• B. Laser alignment tool.
• C. Caliper.
• D. Template gauge.

Answer: (A)

A straightedge or string is the simplest way to verify belt-driven pulley alignment because you’re checking whether the pulley centerlines align in one straight line. With the system off, place the string along the centers of the pulleys or across the belt run so it should pass through each pulley’s center. If the string sits along all centers, the alignment is good; if it deviates between pulleys, there’s angular or parallel misalignment that needs adjusting by moving mounts or shims to bring the pulleys into true line. This quick method is inexpensive and effective for a basic check. Laser tools can give more precise readings for complex setups, while calipers or template gauges aren’t as well suited for verifying straight-line centerline alignment.

A straightedge or string is the simplest way to verify belt-driven pulley alignment because you’re checking whether the pulley centerlines align in one straight line. With the system off, place the string along the centers of the pulleys or across the belt run so it should pass through each pulley’s center. If the string sits along all centers, the alignment is good; if it deviates between pulleys, there’s angular or parallel misalignment that needs adjusting by moving mounts or shims to bring the pulleys into true line. This quick method is inexpensive and effective for a basic check. Laser tools can give more precise readings for complex setups, while calipers or template gauges aren’t as well suited for verifying straight-line centerline alignment.