[. . . ] This cutting machine is capable of amputating hands and feet and throwing objects. Failure to observe the following safety instructions could result in serious injury or death to the operator or bystanders. Never allow children or people unfamiliar with these instructions to use the mower. Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people or their property. [. . . ] NOTE: If the engine stops when you engage the blade(s), the seat switch is not activated. Before you leave the operator's position, make sure the blade(s) has stopped rotating. Before you ride the unit across a sidewalk or a road, move the blade rotation control to the DISENGAGE position. Figure 5 Always keep your hands and feet away from the blade, deflector opening, and the mower housing when the engine runs. To change the forward speed or the direction of the unit, follow the steps below. To change the cutting height, raise or lower the lift lever (5) as follows (see Figure 5). Move the lift lever forward to lower the mower housing and back to raise the mower housing. When you ride on a sidewalk or road, move the lift lever to the highest position and move the blade rotation control to the DISENGAGE position. Before you move the shift lever, completely push the clutch/brake pedal forward to stop the unit. Remove your foot from the clutch/brake pedal and then release the parking brake lever. To release the parking brake, completely push the clutch/brake pedal (2) forward. After each use, clean the bottom and top of the mower housing for better performance. These components tell the electrical system if the operator is sitting on the seat. Every three years, have an authorized service person inspect the blade or replace the old blade with an original equipment part. " Replace a badly worn or damaged blade with an original equipment blade. If the blade is upside down, the blade will not cut correctly and can cause an accident. Make sure the outside rim of the Belleville washer (2) is against the blade. However, it the cutting performance decreases or the quality of cut is poor, make the following changes. A blade that is not sharp will cause the tips of the grass to become brown. Make sure the brake pads (7) are pressed tightly against the pulleys (see Figure 10). If the brake pads (7) do not press tightly against the pulleys, take the unit to an authorized service center. Correct replacement parts and assistance are available from an authorized service center. [. . . ] Push down on the lift links (2) and tighten the left and right adjuster knobs. Models with grease fittings: Lubricate with grease gun (see Figure 15). CAUTION: If the unit is operated in dry areas that have sand, use a dry graphite spray to lubricate the unit. Also, the wrong air pressure will keep the mower housing from cutting level. [. . . ]