Abstract: A rotary masonry saw has a platform supporting a rotatably driven abrasive saw blade pivotable relative to a work support on a support frame. To position and rock the saw blade, the platform is pivotally linked to an adjustable feed screw and tripivot lever mechanism pivotally mounted on and movable with an upwardly biased foot lever pivotally mounted on the frame. Also provided, is a self leveling saw blade guard mechanism including a guide member having arcuate slots extending between opposed arcuate surfaces in supporting retaining and guiding engagement with grooved follower means attached to the guard. A disconnectable link bar pivotally connects the guard to the frame, pivots and maintains the lower edge of the guard substantially horizontal during pivotal movement of the platform and saw blade.