Walk-behind rotary mowers are push-type or self-propelled machines powered by gas or electricity. They are commonly used in small areas that cannot be mowed with larger equipment.

Despite their compact size, walk-behind mowers must be treated with the same safety precautions as larger equipment. Even small mowers can be dangerous if proper care is not taken.

SAFETY FEATURES

Operator presence control (OPC) system – All new walk-behind rotary mowers are required by federal law to have an OPC system. This system ensures that the blade(s) stop completely within three seconds after the blade control is released.

Two types of OPC systems may be used:

• Blade brake clutch – The blade stops within three seconds while the engine continues running.

• Zone system – Both the blade and engine stop within three seconds.

SAFETY PROTECTION FOR OPERATORS

• Clothing protects the operator from thrown objects and sun exposure. Wear long pants and close-fitting clothes. Tie back long hair and avoid anything that could get caught in moving parts. Always wear sturdy shoes or boots with non-slip soles.

• Safety glasses or goggles protect the eyes from dust, dirt, debris, and small rocks thrown by the blade.

• Earplugs protect hearing from engine and blade noise.

• Do not operate mowing equipment under the influence of medications that could impair your ability to use the equipment safely.

• Operate the mower while standing upright, not bent over. For long periods of mowing, consider anti-vibration gloves or padding on the mower handle to reduce vibration to hands and arms.

• Wear gloves when handling blades or other items that may be sharp, have nicks, or contain metal burrs.

• Always shut off the engine and disconnect the spark plug wire before making repairs or adjustments.

BEFORE OPERATING

• Read the operator’s manual to locate and understand all controls. Every mower is different. Check for additional safety instructions and know how to stop the machine quickly.

• Walk the area before mowing and remove objects such as tools, cans, bottles, wire, rocks, sticks, twigs, and limbs. These can be hazards to the operator, bystanders, and the mower.

• Inspect the blades to ensure they are sharp and not bent, cracked, or damaged. Replace blades immediately if they are in poor condition.

• Check fuel levels and engine oil.

• Verify the mowing height is set correctly.

• Inspect for any loose belts or parts.

• Ensure all shields and guards, including the rear drag shield and discharge deflector, are in place and functioning. Do not remove or disable guards or safety devices.

FUELING SAFETY

• Use the proper type of fuel: gasoline or a 2:1 gas/oil mixture, depending on the mower’s requirements.

• Do not overfill the tank; leave room for fuel expansion.

• Never add fuel while the engine is hot. Allow the engine to cool before refueling.

• Do not light matches or smoke near gasoline.

KEEP OTHERS AT A SAFE DISTANCE

• Keep people at a safe distance from the mower while it is operating—at least a 60-foot radius.

• Disengage the blade and shut off the engine if anyone approaches the mower.

OPERATING TIPS

• Never mow wet grass. Wet grass increases the risk of slipping and can clog the discharge chute.

• Always turn off the engine and disconnect the spark plug wire before attempting to unclog or work on the mower. Use a stick to remove clogs—never place your hands near the blade.

• Shut off the mower when adjusting the cutting height.

• Operate the mower at full throttle. Slow down on rough terrain and while making turns.

• Watch for hidden hazards, including holes, roots, drain pipes, insects, and low overhead branches. Always watch your footing on slopes. Mow across an incline, and never mow a slope that is too steep for balance and control.

• Always push the mower forward. Use extreme caution when reversing or pulling the mower. Never remove the grass catcher or unclog the chute while the motor is running.

• Disengage the blades or turn off the mower when crossing gravel, sidewalks, or driveways.

• Mow counterclockwise in most cases to discharge grass onto already-mowed areas. Never discharge grass toward bystanders or traffic.

• Stop and inspect the blades and shaft if the mower hits a large rock or stump. Damaged blades can vibrate and loosen.

• When using an electric-powered mower, use grounded extension cords. Mow away from the cord and unplug the mower after use.

MACHINE SHUT DOWN

• Idle the engine for a few minutes to allow it to cool down.

• Always clean the mower after use. Do not spray cold water on a hot engine.

KEEP PEAK

• Inspect the mower regularly for potential hazards, such as loose belts or missing or damaged guards.

• Check for accumulations of grass, leaves, or excessive grease, which can increase fire risk.

• Seek the advice of a mechanic for any problems.

• Conduct routine maintenance and inspections according to the operator’s manual.