Toro 4573 - User Manual

Questions and Answers

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hpierceAug 21, 2025
Why won't my Toro 4573 Lawn Mower engine start?
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  Michael CardenasAug 21, 2025
  If your Toro Lawn Mower engine won't start, starts hard, or fails to keep running, several factors could be at play. Ensure you're seated properly. Check if the fuel tank is empty and refill if necessary. A dirty air cleaner can cause issues, so clean or replace it. Make sure the spark plug wire is securely connected. Inspect the spark plug itself; if it's damaged or improperly gapped, replace it. Also, verify the choke is closing correctly, and the fuel filter is free of dirt. Adjust the carburetor idle speed and idle mixture. Finally, check that the fuel shut-off valve is open.
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williamlyonsAug 23, 2025
What to do if my Toro Lawn Mower starter does not crank?
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  Kayla MaddoxAug 23, 2025
  If the starter on your Toro Lawn Mower isn't cranking, there are several potential reasons. First, ensure the blade control (PTO) knob is in the Disengaged position. Next, confirm that the parking brake is fully engaged. A dead battery could also be the culprit, so try charging it. Check all electrical connections to ensure they are clean and tight. A blown fuse can also prevent the starter from cranking, so inspect and replace if necessary.
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Tony JohnsonAug 26, 2025
What to do if Toro 4573 starter does not crank?
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  Amy PattonAug 26, 2025
  If the starter on your Toro Lawn Mower isn't cranking, consider these possible causes and solutions: * Ensure the blade control (PTO) knob is disengaged. * Make sure the parking brake is set. * Charge the battery if it is dead. * Inspect the electrical connections for corrosion or looseness and ensure good contact. * Replace the fuse if it's blown. If the problem persists, it may be due to a damaged relay or switch, in which case you should contact an Authorized Service Dealer.
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elizabeth16Aug 27, 2025
Why does my Toro 4573 engine lose power?
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  William WilsonAug 28, 2025
  If your Toro Lawn Mower engine is losing power, here are a few things to check: * Reduce your ground speed if the engine load is excessive. * Clean the air cleaner element if it is dirty. * Add engine oil to the crankcase if the oil level is low. * Clear any obstructions from the cooling fins and air passages under the engine blower housing. * Install a new, correctly-gapped spark plug if the current one is pitted, fouled, or has an incorrect gap. * Clean or replace the fuel cap if the vent hole is plugged. * Replace the fuel filter if it is dirty. If the issue continues, contact an Authorized Service Dealer, as there might be dirt, water, or stale fuel in the fuel system.
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Bryan RamosAug 29, 2025
Why Toro Lawn Mower blades do not rotate?
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  rsmithAug 29, 2025
  If the blades on your Toro Lawn Mower aren't rotating, here's what to check: * Install a new blade drive belt if the current one is worn, loose, or broken. * Install the blade drive belt and adjust it for the correct tension if it is off the pulley. * Install the grass collector if it is not in place.
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Lindsay GordonSep 1, 2025
How to fix uneven cutting height on Toro Lawn Mower?
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  castanedadavidSep 1, 2025
  If the cutting height on your Toro Lawn Mower is uneven, consider these factors: * Set the tire pressure correctly. * Adjust the height adjustment cable rod assembly to level the mower. * Clean the underside of the mower if it's dirty. * Tighten the blade mounting screws if they are loose. * Adjust the blade drive belt if the tension is incorrect.
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matthew48Sep 3, 2025
Why are the blades not rotating on my Toro 4573 Lawn Mower?
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  Ashley HughesSep 3, 2025
  If the blades on your Toro Lawn Mower aren't rotating, here's what you should check: 1. Install a new blade drive belt if the blade drive belt is worn, loose, or broken. 2. Install the blade drive belt and adjust it for the correct tension if the blade drive belt is off the pulley. 3. Install the grass collector if the grass collector is not in place.
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Carrie GarzaSep 5, 2025
How to fix uneven cutting height on my Toro 4573?
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  cisnerosgregorySep 5, 2025
  Uneven cutting height on your Toro Lawn Mower can be caused by several factors. Ensure the tire pressure is correct. Adjust the height adjustment cable rod assembly if the mower is not level. Clean the underside of the mower if it's dirty. Tighten the blade mounting screws if they are loose. Adjust the blade drive belt if the blade drive belt tension is incorrect.
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Jenna HernandezSep 7, 2025
How to fix Toro Lawn Mower engine overheating?
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  Brandi DavisSep 7, 2025
  If your Toro Lawn Mower engine is overheating, consider the following: * Reduce the ground speed, as the engine load may be excessive. * Add engine oil to the crankcase if the oil level is low. * Remove any obstructions from the cooling fins and air passages under the engine blower housing.
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andersonvictorSep 9, 2025
What causes abnormal vibration in Toro 4573?
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  jennifer57Sep 9, 2025
  If you notice abnormal vibration in your Toro Lawn Mower, check the following: 1. Install new blades if the current ones are bent or unbalanced. 2. Tighten the blade mounting screws if they are loose. 3. Tighten the engine mounting bolts if they are loose. 4. Tighten any loose engine pulley, idler pulley, or blade pulley. 5. Install a new blade drive belt if the current one is damaged. If the engine pulley is damaged, contact an Authorized Service Dealer.