Ryobi Front-engine lawn tractor Parts — Browse All Models

Top-selling Ryobi front-engine lawn tractor replacement parts

• Ignition switch. A riding mower ignition switch supplies power to the electrical components of the engine. When you turn the key, a metal contact transmits energy to the various connections on the switch. The ignition switch includes a lock that allows the switch to turn only when the tumblers in the lock are in the correct position.
• Mandrel assembly. The mandrel assembly consists of the housing, bearings, and blade shaft. The mandrel mounts to the mower housing and has a pulley on top. When the user engages the blades, a belt turns the pulley on the top of the mandrel and spins the mower blade.
• Mower blade. The mower blade is affixed to the end of a shaft and has one sharp edge on the top side. As the shaft spins, the sharp edge cuts the grass. Because of the upward angle of the sharp edge, the grass blows upward and out to the discharge chute.
• Starter solenoid. The starter solenoid is a high-current switch that sends power to the starter motor to spin the engine when you turn the ignition key to the start position.

Troubleshooting your Ryobi front-engine lawn tractor when it won't cut grass

If the riding lawn mower runs but the blades won't cut the grass, the problem could be with the blade belt. Examine and replace the belt if you find it worn or broken. If the belt is okay, check the blade belt idler pulley, blade clutch cable and clutch lever assembly on tractors with manual blade actuators. On riding mowers that use a PTO switch to activate the blades, check the PTO switch and the electric clutch. Failed mandrel pulleys can also prevent the blades from spinning properly.

You'll need to replace the mandrel pulleys if they're worn or damaged