Toro GrandStand 79551 Operator's Manual
![Toro GrandStand 79551 Mower manual cover](/images/fvLDjYGHGKVTKQPUgxIsexQo/thumbs/thumb175x175.webp)
The Toro GrandStand 79551 mower should have its oil changed every 50 hours, air filter checked every 25 hours, and blades sharpened every 25 hours. A full maintenance check should be performed annually.
Check the battery charge, ensure the fuel tank is not empty, inspect the spark plugs for wear or damage, and verify that all safety switches are engaged.
Use SAE 30 oil for temperatures above 32°F (0°C) and 10W-30 for temperatures below 32°F (0°C). Ensure the oil is API service classification SF, SG, SH, SJ, or higher.
Blades should be replaced when they are worn beyond sharpening or if they show signs of cracking or significant damage. Regular inspection is recommended every 25 hours of use.
To adjust the cutting height, use the height adjustment lever located near the operator's platform. Adjust to the desired height setting, ensuring both sides are set equally for an even cut.
Use a hose to wash the deck after each use to prevent grass buildup. For thorough cleaning, use a deck scraper to remove any stuck debris. Ensure the mower is turned off and cool before cleaning.
Check for any obstructions or debris under the deck. Inspect the blades for damage or imbalance, and ensure all mounting hardware is securely fastened.
Ensure the engine is well-maintained, with regular oil changes and air filter replacements. Use fuel stabilizers and keep the blades sharp to reduce engine load.
Ensure that the operator presence controls are functioning, check that the safety interlock system is operational, and verify that all guards and shields are in place.
Clean the mower thoroughly, perform all necessary maintenance, add a fuel stabilizer to the tank, and store in a dry, sheltered location. Disconnect the battery to prevent discharge.