Instructions for using Napa 3900 pulley holder?

To use the Napa 3900 pulley holder, first ensure the engine is off and cool. Position the pulley holder against the pulley you need to secure, aligning it with the bolt holes. Tighten the holder's bolts to secure it in place, ensuring it holds the pulley firmly. Finally, proceed with your repair or maintenance task while the pulley remains immobilized.