A guard assembly for a machine is provided. The guard assembly includes a guard structure and a frame. The frame is attachable to the machine at a machine component. The guard structure is pivotably connected to the frame and movable between a first position and a second position. The frame further includes a magnet structure to releasably couple the frame to the machine component. Furthermore, the frame includes a cap being secured to the magnet structure. The cap includes a skin having at least one side extending beyond the magnet structure and contacting at least a portion of the machine component.