Husqvarna 70R21HV Operator's Manual
![Husqvarna 70R21HV Lawn Mower manual cover](/images/WxuakWdhmIptZbCuDmpARJIG/thumbs/thumb175x175.webp)
To start the Husqvarna 70R21HV Lawn Mower, check the fuel level, press the primer bulb three times, pull the starter rope firmly, and adjust the choke if necessary. Ensure the throttle is in the correct position for starting.
Use unleaded gasoline with a minimum octane rating of 87. Avoid using ethanol blends greater than 10%. Always use fresh fuel to prevent engine issues.
Change the oil after the first 5 hours of use, then every 25 hours of operation or once per mowing season. Use SAE 30 oil for optimal performance.
Check for fuel, inspect the spark plug for damage or fouling, ensure the air filter is clean, and verify the fuel line is not clogged. If problems persist, consult a professional technician.
To adjust the cutting height, locate the height adjustment levers on each wheel. Move the levers to the desired position, ensuring all wheels are set to the same height for an even cut.
Keep the blades sharp, mow when grass is dry, adjust the cutting height appropriately, and ensure the mower deck is clean to prevent clippings from clogging.
Drain the fuel tank, change the oil, clean or replace the air filter, inspect and sharpen the blade, and store the mower in a dry place. Disconnect the spark plug wire to prevent accidental starting.
Disconnect the spark plug, tilt the mower to one side, and use a garden hose or scraper to remove grass clippings and debris from the deck. Dry thoroughly to prevent rust.
Check for loose or damaged blades, ensure the engine is securely mounted, and inspect for debris caught in the blade or deck. Tighten any loose parts and replace damaged components.
Disconnect the spark plug wire, use a spark plug wrench to remove the old plug, and install a new plug with the correct gap setting. Reattach the spark plug wire.