When operating a riding lawn mower, several safety measures should be followed to prevent accidents and injuries [1].

Before starting, make sure all power-driven chains, belts, and gears are guarded to prevent accidental contact during normal operation [2]. A shutoff device should be available to stop the motor or engine, requiring manual reactivation to restart [2]. Ensure all operating controls are clearly identified [2].

When using walk-behind and riding rotary mowers, the mower blade should be enclosed, extending to or below the lowest cutting point [2]. If guards need to be removed to install a catcher assembly, warning instructions should be affixed near the opening, stating that the mower should not be used without either the catcher assembly or the guard in place [2].

For riding rotary mowers, the openings in the blade enclosure should be designed to prevent grass or debris from discharging directly toward the operator [3]. Mowers should also have stops to prevent jackknifing or locking of the steering mechanism [3].

Additionally, be aware of the blade stopping time after declutching or shutting off power, which should be within 15 seconds [4]. The maximum tip speed of any blade should be 19,000 feet per minute [4].

Prioritize safety by understanding and following these guidelines to minimize risks while operating a riding lawn mower [1].