This video provides step-by-step instructions for replacing the square key (or pump drive key) on Homelite pressure washers. The most common reason for replacing the square key is if it is broken or missing, causing the pump to not run even when the engine is running.
All of the information in this square key replacement video is applicable to the following brands: Homelite, PowerStroke, Black Max, Ryobi
Tools used: pinch off pliers, flat-blade screwdriver, 12mm socket, 1/2 in wrench, torque wrench
