What simple method confirms proper pulley alignment on belt-driven equipment?

What simple method confirms proper pulley alignment on belt-driven equipment?

• A. Dial indicator
• B. String or straight edge
• C. Belts parallel to one another
• D. Not critical

Answer: (B)

Ensuring proper belt alignment means the pulley faces lie in the same plane so the belt runs straight and doesn’t track off to one side. A string or straight edge is the simplest way to check this quickly. Place the string along the outer edges (or across the faces) of the pulleys where the belt travels and look to see if a single straight line touches all pulleys. If the line aligns with all pulleys, the alignment is good; if it gaps or shifts between pulleys, something is out of line and you need to adjust the positions or spacing until the line runs cleanly across every pulley. This method is fast, inexpensive, and gives an immediate sense of whether the belts will track properly. More precise tools like a dial indicator exist for fine measurements, but for a quick confirmation the string or straight edge is ideal.

Ensuring proper belt alignment means the pulley faces lie in the same plane so the belt runs straight and doesn’t track off to one side. A string or straight edge is the simplest way to check this quickly. Place the string along the outer edges (or across the faces) of the pulleys where the belt travels and look to see if a single straight line touches all pulleys. If the line aligns with all pulleys, the alignment is good; if it gaps or shifts between pulleys, something is out of line and you need to adjust the positions or spacing until the line runs cleanly across every pulley. This method is fast, inexpensive, and gives an immediate sense of whether the belts will track properly. More precise tools like a dial indicator exist for fine measurements, but for a quick confirmation the string or straight edge is ideal.