Remove the fuel tank cap.
Place a plastic bag over the fuel tank opening and reinstall the fuel tank cap to prevent gasoline from leaking out through the fuel tank cap vent.
Tilt the mower back to lift the front wheels then secure the mower handle to your worktable to hold the mower steady. Remove the bottom drive cover mounting screws.
Wedge a block of wood between the mower blade and the deck to keep the blade from turning when you loosen the blade nut.
Loosen and unthread the blade nut while holding the cutting blade to keep the blade from falling.
Pull the blade, blade support and blade nut off the crankshaft.
Remove the debris shield mounting screws and pull off the debris shield.
Roll the drive belt off the crankshaft pulley.
Pull the crankshaft pulley off and free the belt from the crankshaft.
Release the clamp from the mower handle and lower the mower to the upright position.
Remove the top drive cover mounting screws.
Release the height adjuster lever and pull the drive cover off.
Pull off the belt keeper from the top of the transmission.
Release the drive belt from the transmission pulley and remove the drive belt.
Tip: If you have the mower on the ground instead of a worktable, tilt the lawn mower on its side with the air filter up to access the mower blade.