Toro Z580-D Z Master 74266 User Manual (English)

Questions and Answers:

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Stacy PatrickSep 6, 2025
Why does my Toro Z580-D Z Master 74266 engine lose power?
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  Donald MaloneSep 6, 2025
  If your Toro Lawn Mower engine loses power, the possible causes are: the engine load is excessive (reduce the ground speed); the air cleaner is dirty (clean the air-cleaner element); the oil level in the crankcase is low (add oil to the crankcase); the cooling fins and air passages above the engine are plugged (remove the obstruction from the cooling fins and air passages); the vent hole in the fuel cap is plugged (clean or replace the fuel cap); there is dirt in the fuel filter (replace the fuel filter); or there is dirt, water, or stale fuel is in the fuel system (contact an Authorized Service Dealer).
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Richard SmallAug 25, 2025
What to do if my Toro Z580-D Z Master 74266 engine does not start?
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  Javier ShepherdAug 25, 2025
  If your Toro Lawn Mower engine doesn't start, starts hard, or fails to keep running, several factors could be at play. Start by checking if the fuel tank is empty and fill it if needed. Ensure the fuel-shutoff valve is open. Verify the oil level in the crankcase and add oil if it's low. Make sure the throttle control is positioned midway between the SLOW and FAST settings. Check and replace the fuel filter if it's dirty. Inspect the air cleaner and clean or replace the element if it's dirty. Also, make sure the spark-plug wire is connected, and clean, adjust, or replace the spark plug if it's faulty. Finally, check the electrical connections for good contact, cleaning the connector terminals if necessary.
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xcraigAug 25, 2025
Why won't my Toro Z580-D Z Master 74266 Lawn Mower starter crank?
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  raymond49Aug 26, 2025
  If the starter on your Toro Lawn Mower doesn't crank, there are several things to check. First, ensure the blade-control switch (PTO) is disengaged and the parking brake is engaged. Make sure the drive levers are in the NEUTRAL-LOCK position and that you are seated on the seat. If these are all correct, check the battery to see if it's dead and charge it if necessary. Also, inspect the electrical connections for corrosion or looseness and ensure they have good contact. Finally, check the fuse and replace it if it's blown.
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John PattersonAug 27, 2025
What to do if my Toro Z580-D Z Master 74266 is resulting in uneven cutting height?
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  Jacqueline BrownAug 27, 2025
  If your Toro Lawn Mower is leaving an uneven cut, several factors could be the cause. Start by sharpening the blades or installing new ones if they are bent. Ensure the mower deck is level from side-to-side and front-to-rear. Clean the underside of the mower deck. Adjust the tire pressure to the correct level.
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Jade SchneiderAug 27, 2025
How to fix a Toro Z580-D Z Master 74266 when the starter does not crank?
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  Melissa BradleyAug 27, 2025
  If the starter of your Toro Lawn Mower doesn't crank, make sure the blade-control switch (PTO) is disengaged, the parking brake is engaged, the drive levers are in the NEUTRAL-LOCK position, you are in the operator’s seat, the battery is charged, the electrical connections are in good contact, the fuse is not blown (replace if necessary), and the relay or switch is functional (contact an Authorized Service Dealer if broken).
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danielandersonAug 28, 2025
What to do if my Toro Lawn Mower starter does not crank?
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  Joseph MedinaAug 29, 2025
  If the starter on your Toro Lawn Mower isn't cranking, consider these possible causes and solutions: * Ensure the blade control (PTO) is disengaged. * Make sure the parking brake is engaged. * Confirm the operator is seated. * Check if the battery is dead and charge if necessary. * Inspect electrical connections for corrosion or looseness. * Verify the fuse isn't blown and replace it if it is. * If problems persist, a relay or switch may be defective, so contact an Authorized Service Dealer.
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Robert CarterSep 12, 2025
What to do if Toro Lawn Mower engine loses power?
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  Jay GarrisonSep 12, 2025
  If your Toro Lawn Mower engine loses power, try reducing the ground speed. Clean the air cleaner element and add oil to the crankcase if the oil level is low. Remove any obstructions from the cooling fins and air passages. Clean or replace the fuel cap if the vent hole is plugged. Replace the fuel filter if it's dirty.
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Robert MoodySep 7, 2025
Why does my Toro Lawn Mower have an uneven cutting height?
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  Joseph RodriguezSep 7, 2025
  If your Toro Lawn Mower is resulting in an uneven cutting height, possible causes include: the blade(s) is/are not sharp (sharpen the blade(s)); the cutting blade(s) is/are bent (install new cutting blade(s)); the mower deck is not level (level the mower deck from side-to-side and front-to-rear); the underside of mower is dirty (clean the underside of the mower); the tire pressure is not correct (adjust the tire pressure); the blade spindle bent (contact an Authorized Service Dealer).
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Cassandra RobbinsSep 4, 2025
What to do if my Toro Z580-D Z Master 74266 blades do not rotate?
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  David MartinezSep 5, 2025
  If the blades on your Toro Lawn Mower do not rotate, check if the mower deck belt is worn, loose, or broken, and install a new deck belt if needed. If the mower deck belt is off the pulley, reinstall it and inspect the idler pulley, idler arm, and spring for correct position and function. Also, inspect the pump drive belt for wear, looseness, or breakage; check the belt tension or install a new belt. Finally, replace the idler spring if it's broken or missing.
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Stacy MillerSep 2, 2025
Why are the blades not rotating on my Toro Z580-D Z Master 74266 Lawn Mower?
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  Felicia EllisSep 2, 2025
  If the blades on your Toro Lawn Mower are not rotating, here are a few things to inspect: * Check the belt tension if the drive belt is worn, loose, or broken. * Install the drive belt and check adjusting shafts and belt guides for correct position if the drive belt is off the pulley. * Install a new deck belt if the deck belt is worn, loose, or broken. * Install the deck pulley and check the idler pulley, idler arm, and spring for correct position and function if the deck belt is off the pulley. * Replace the spring if the idler spring is broken or missing.