Toro 74020 - User Manual

Questions and Answers

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lopezrachelAug 25, 2025
How to fix uneven cutting height on my Toro 74020?
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  Melissa TorresAug 25, 2025
  Uneven cutting height on your Toro Lawn Mower may be due to: * Dull blade(s): Sharpen the blade(s). * Bent cutting blade(s): Install a new cutting blade(s). * Mower not level: Level the mower from side-to-side and front-to-rear. * Incorrect anti-scalp roller setting: Adjust the anti-scalp wheel height. * Dirty mower deck underside: Clean the underside of the mower deck. * Incorrect tire pressure: Adjust the tire pressure.
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jnixonAug 26, 2025
Why is my Toro 74020 Lawn Mower engine overheating?
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  trandeniseAug 26, 2025
  If the engine of your Toro Lawn Mower overheats, it could be due to several reasons: * The engine load might be excessive, so reduce the ground speed. * The oil level in the crankcase may be low, so add oil. * Obstructions might be present in the cooling fins and air passages under the engine-blower housing; remove any obstructions. * The air cleaner could be dirty, so clean or replace the air-cleaner element.
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Shannon Fernandez MDAug 28, 2025
Why is my Toro 74020 not moving?
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  browndanielleAug 28, 2025
  If your Toro Lawn Mower isn't driving, check the following: * Ensure the bypass valves are closed tight; tighten the bypass valves. * If the pump belt is worn, loose, or broken, replace the belt. * If the pump belt is off a pulley, change the belt. * Replace the spring if the idler spring is broken or missing. * If the hydraulic fluid level is low or too hot, add hydraulic fluid to the reservoirs or let it cool down.
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Patrick JohnsonAug 29, 2025
Why does my Toro Lawn Mower engine overheat?
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  jessetaylorAug 30, 2025
  Your Toro Lawn Mower engine may overheat due to several reasons: * Excessive engine load: Reduce the ground speed. * Low oil level: Add oil to the crankcase. * Blocked cooling fins and air passages: Remove any obstructions. * Dirty air cleaner: Clean or replace the air-cleaner element.
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Lauren Ward DVMAug 31, 2025
What to do if the malfunction indicator light comes on in my Toro Lawn Mower?
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  Katie RobertsonAug 31, 2025
  If the malfunction indicator light (MIL) comes on, it could be due to several reasons: * The engine is too hot. Shut off the engine and let it cool. * Old fuel is in the fuel tank. Use new fuel. * The fuel-shutoff valve is not open completely. Open the fuel-shutoff valve. * The air cleaner is dirty. Make sure that the air cleaner and precleaner are clean. Replace if necessary. * The battery is not charged. Charge or replace the battery. * There is low voltage from the battery. Ensure that you are using a good 12 V battery and that it is fully charged. * A fuse is blown. Check and replace any blown fuses.
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Andrew RodriguezSep 2, 2025
Why does my Toro 74020 Lawn Mower engine lose power?
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  Julie AlvarezSep 2, 2025
  Your Toro Lawn Mower's engine might be losing power for the following reasons: * Excessive engine load: Reduce the ground speed. * Dirty air cleaner: Clean the air-cleaner element. * Low oil level: Add oil to the crankcase. * Blocked cooling fins and air passages: Remove any obstructions. * Plugged fuel cap vent hole: Clean or replace the fuel cap. * Dirt in the fuel filter: Replace the fuel filter.
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Richard OconnorSep 4, 2025
Why won't the starter crank on my Toro 74020?
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  David BlackSep 4, 2025
  If the starter doesn't crank on your Toro Lawn Mower, check these: * The blade-control switch is engaged: Disengage the blade-control switch. * The parking brake is disengaged: Engage the parking brake. * The motion-control levers are not in the NEUTRAL-LOCK position: Move the motion-control levers outward to the NEUTRAL-LOCK position. * You are not sitting in the operator’s seat: Sit on the operator’s seat. * The battery is dead: Charge the battery. * The electrical connections are corroded or loose: Check the electrical connections for good contact. * A fuse is blown: Replace the fuse.
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Charles TorresSep 6, 2025
Why is my Toro 74020 Lawn Mower vibrating so much?
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  Nicholas CooperSep 6, 2025
  Abnormal vibration in your Toro Lawn Mower can be caused by: * Bent or unbalanced cutting blade(s): Install new cutting blade(s). * Loose blade mounting bolt: Tighten the blade mounting bolt. * Loose engine mounting bolts: Tighten the engine mounting bolts. * Loose engine pulley, idler pulley, or blade pulley: Tighten the appropriate pulley.
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Brittany EstradaSep 8, 2025
Why won't my Toro 74020 Lawn Mower drive?
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  Janet LopezSep 8, 2025
  If your Toro Lawn Mower isn't driving, consider these possibilities: * Bypass valves are not closed tight: Tighten the bypass valves. * Pump belt is worn, loose, or broken: Change the belt. * Pump belt is off a pulley: Change the belt. * Idler spring is broken or missing: Replace the spring. * Hydraulic fluid level is low or too hot: Add hydraulic fluid to the reservoirs or let it cool down.
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Ana HoltSep 10, 2025
Why aren't the blades rotating on my Toro 74020 Lawn Mower?
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  Joy MyersSep 10, 2025
  If the blades on your Toro Lawn Mower aren't rotating, check: * Worn, loose, or broken drive belt: Install a new drive belt. * Drive belt off the pulley: Install the drive belt and check the adjusting shafts and belt guides for the correct position. * Worn, loose, or broken mower belt: Install a new mower belt.

Toro 74020 Specifications

General

Brand	Toro
Model	74020
Category	Lawn Mower
Power Source	Gasoline
Engine Displacement	159 cc
Engine Type	4-Cycle
Drive System	Rear Wheel Drive
Deck Material	Steel
Cutting Height Positions	9
Number of Blades	1
Mulching Capability	Yes
Bagging Capability	Yes
Side Discharge	Yes
Type	Walk-Behind
Cutting Width	22 inches
Start Type	Pull Start
Cutting Height	1 inch to 4 inches
Fuel Tank Capacity	0.25 gallons
Weight	77 lbs