Toro CT2240 Operator's Manual page 30

Important: Take care when travelling over obstacles
such as roadside curbs. Always travel at slow speed over
obstacles to prevent damage to the tires, wheels, and
the steering system. Ensure that the tires are inflated to
the recommended pressure.
Using the Rear Roller Scrapers
Remove the rear roller scrapers where conditions allow, as
optimum grass discharge is achieved without them. Install the
scrapers when conditions are such that mud and grass start
to build up on the rollers. When installing the scraper wires,
ensure that they are correctly tensioned.
30