Toro Z Master Z255 74235 Operator's Manual
![Toro Z Master Z255 74235 Mower manual cover](/images/inJYWtNQqBGcNfpxlMppHpXV/thumbs/thumb175x175.webp)
To change the oil, run the engine for a few minutes to warm it up, then stop the engine and disconnect the spark plug wire. Place a drain pan under the oil drain valve, remove the dipstick, and open the drain valve to allow the oil to flow out completely. Close the valve, replace the oil filter, and refill with fresh oil as per the owner's manual specifications.
Use unleaded gasoline with an octane rating of 87 or higher. Avoid using gasoline with more than 10% ethanol as it can damage the engine components.
First, check the battery connections for corrosion and ensure they are tight. Verify that the fuel tank has fresh fuel and that the fuel valve is open. Inspect the spark plug for wear or damage and replace if necessary. Ensure that the seat safety switch is functioning properly. If the issue persists, consult the service manual or contact a professional technician.
Blade sharpening frequency depends on usage, but generally, the blades should be sharpened after every 25 hours of mowing or at the beginning of the mowing season. Dull blades can tear grass rather than cut it, causing lawn damage.
The recommended tire pressure for the front tires is typically 13 psi and for the rear tires is 15 psi. Always refer to the tire sidewall or the owner's manual for the most accurate information.
To adjust the cutting height, locate the deck lift lever on the mower. Move the lever to the desired height setting, which is typically marked on the mower. Ensure that all wheels are adjusted to the same height for an even cut.
Excessive vibration can be caused by several factors including unbalanced or damaged blades, loose engine mounting bolts, or debris caught in the mower deck. Inspect the blades for damage and balance them if necessary. Tighten any loose bolts and clean out any debris from the deck.
To clean the air filter, remove the air filter cover and take out the filter. If it's a foam filter, wash it with warm soapy water, rinse, and let it air dry. If it's a paper filter, gently tap it to remove dirt or replace it if it's heavily soiled. Reinstall the filter and cover securely.
Before storing, clean the mower thoroughly, change the oil, and remove the battery. Add a fuel stabilizer to the tank and run the engine for a few minutes to distribute it through the system. Store the mower in a dry, covered area. Consider covering the machine to protect it from dust and debris.
To replace the drive belt, first, ensure the mower is turned off and the spark plug wire is disconnected. Remove the mower deck and locate the drive belt. Carefully remove the belt from the pulleys, noting the routing path. Install the new belt, ensuring it is routed correctly around all pulleys, and reattach the mower deck.