Toro Z Master Z252 74206 Operator's Manual
![Toro Z Master Z252 74206 Mower manual cover](/images/twEiHzsOETAiiMyzxLMgiMZH/thumbs/thumb175x175.webp)
To change the oil, first warm up the engine to help the oil flow out easily. Turn off the mower and disconnect the spark plug wire. Locate the oil drain valve, place a pan underneath, and open the valve to drain the oil. Replace the oil filter if needed, close the drain valve, and refill with the recommended oil type and quantity.
If your mower won't start, check the battery connections and charge if necessary. Ensure the fuel tank has fresh gasoline and the fuel valve is open. Inspect the spark plug for wear or damage and replace if needed. Also, ensure that all safety interlock switches are properly engaged.
To adjust the cutting height, locate the deck lift lever on the mower. Move the lever to the desired cutting height position. The height settings are usually marked on the mower deck or control panel. Ensure the deck is level for an even cut.
Regular maintenance includes checking the oil level and changing it as needed, cleaning or replacing the air filter, sharpening or replacing the mower blades, inspecting and maintaining tire pressure, and checking the belts for wear. Also, lubricate moving parts and clean the mower deck to prevent grass buildup.
To improve fuel efficiency, keep the engine properly tuned and maintain clean air and fuel filters. Use the recommended fuel grade and avoid excessive idling. Regularly sharpen the blades to reduce engine load and mow at the optimal speed for conditions.
Excessive vibration can be caused by unbalanced or damaged blades, loose parts, or worn belts. Check and balance the blades, tighten any loose hardware, and inspect the belts for wear or damage. Replace any damaged components as necessary.
To winterize the mower, clean the mower deck and remove any debris. Stabilize the fuel or drain the fuel tank. Change the oil and oil filter, clean or replace the air filter, and remove the battery for storage. Store the mower in a dry, sheltered area.
Toro recommends using SAE 10W-30 or SAE 30 motor oil for most operating conditions. Always refer to the owner's manual for the specific oil recommendations for your mower and operating conditions.
Uneven cutting can be caused by a misaligned mower deck, dull blades, or incorrect tire pressure. Ensure the mower deck is level, sharpen the blades, and check the tire pressure. Make adjustments as needed to achieve an even cut.
To replace the drive belt, park the mower on a level surface and remove the mower deck. Locate the belt routing diagram and follow it to remove the old belt. Install the new belt according to the diagram, ensuring it is seated properly on all pulleys. Reinstall the mower deck.