Toro 74490 - User Manual

Other manuals for Toro 74490

Service Manual118 pages

Setup Instructions12 pages

Questions and Answers

S
Sandy BradleyAug 19, 2025
Why Toro 74490 starter does not crank?
- D
  David MilesAug 19, 2025
  If the starter on your Toro Lawn Mower isn't cranking, here are a few things to check: First, make sure the blade-control switch is disengaged. Next, ensure the motion-control levers are in the NEUTRAL-LOCK position by moving them outward. If those aren't the issue, the battery might be dead, so try charging it. Also, check the electrical connections for any corrosion or looseness, ensuring they have good contact. Replace the fuse if it's blown. For a damaged relay or switch, it's best to contact an Authorized Service Dealer.
S
Shawn WellsAug 22, 2025
What to do if Toro 74490 engine loses power?
- D
  Daniel HarrisAug 22, 2025
  If your Toro Lawn Mower engine is losing power, consider these possible causes: the engine load may be too high, so reduce your ground speed. Check the air cleaner and clean the element if it's dirty. Ensure the oil level in the crankcase is adequate; add oil if needed. Inspect the cooling fins and air passages above the engine for obstructions and remove them. Also, verify the vent hole in the fuel cap isn't plugged; clean or replace the cap if it is. Replace the fuel filter if it is dirty. For issues related to dirt, water, or stale fuel in the fuel system, it's best to contact an Authorized Service Dealer.
C
Christy SmithAug 26, 2025
What to do if my Toro Lawn Mower will not drive?
- D
  Daniel FrenchAug 26, 2025
  If your Toro Lawn Mower isn't driving, consider these possible causes: ensure the bypass valves are closed tightly. If not, tighten them. Check the pump belt for wear, looseness, or breakage; change the belt if needed. Verify the pump belt is properly on the pulley; change the belt if it is off. Inspect the idler spring for breakage or if it's missing; replace the spring if necessary. Also, check the hydraulic fluid level; add hydraulic fluid to the reservoirs or allow it to cool down if it's too hot.
W
williambaileyAug 28, 2025
How to fix uneven cutting height on my Toro 74490 Lawn Mower?
- S
  Sheila RobinsonAug 28, 2025
  If the cutting height on your Toro Lawn Mower is uneven, several factors could be responsible. Make sure the blade(s) is sharp; sharpen them if needed. If a cutting blade(s) is bent, install a new one. Ensure the mower is level from side-to-side and front-to-rear. If applicable, check that the anti-scalp roller is set correctly and adjust the anti-scalp wheel height. Clean the underside of the mower deck if it's dirty. Verify that the tire pressure is correct and adjust it as necessary. For a bent blade spindle, it's best to contact an Authorized Service Dealer.
C
Catherine FisherAug 31, 2025
What to do if Toro 74490 blades do not rotate?
- V
  vanessathompsonAug 31, 2025
  If the blades on your Toro Lawn Mower aren't rotating, consider these potential issues: the drive belt may be worn, loose, or broken, in which case you should install a new drive belt. The drive belt might also be off the pulley; install the drive belt and check the adjusting shafts and belt guides for the correct position. Also, a mower belt may be worn, loose, or broken, you should install a new mower belt. For a faulty power takeoff (PTO) switch or PTO clutch, it's recommended to contact an Authorized Service Dealer.
W
watkinsabigailSep 3, 2025
How to fix Toro 74490 Lawn Mower when the engine overheats?
- J
  Jonathan ChambersSep 3, 2025
  If your Toro Lawn Mower engine is overheating, there are several potential causes. The engine load might be excessive, so try reducing the ground speed. Check the oil level in the crankcase and add oil if it's low. Ensure the cooling fins and air passages under the engine-blower housing are free from obstructions; remove any debris. Also, inspect the air cleaner and clean or replace the air-cleaner element if it's dirty. If you suspect dirt, water, or stale fuel in the fuel system, it's recommended to contact an Authorized Service Dealer.
C
Christopher MejiaSep 6, 2025
Why is my Toro Lawn Mower vibrating so much?
- D
  Donald FordSep 6, 2025
  If your Toro Lawn Mower is vibrating abnormally, here are some potential causes and solutions: * The cutting blade(s) might be bent or unbalanced. If so, install new cutting blade(s). * The blade mounting bolt could be loose. Tighten it securely. * The engine mounting bolts might be loose as well. Tighten them. * Check if the engine pulley, idler pulley, or blade pulley is loose and tighten the appropriate pulley. For issues like a damaged engine pulley, a bent blade spindle, or a loose/worn motor mount, it's recommended to contact an Authorized Service Dealer.
H
heidi23Sep 9, 2025
Why does my Toro 74490 pull to one side?
- Z
  Zoe SchmidtSep 9, 2025
  If your Toro Lawn Mower pulls to the left or right even with the levers fully forward, it could be due to tracking issues or incorrect tire pressure. Try adjusting the tracking. Also, adjust the tire pressure in the drive tires to ensure it is correct.
J
John GonzalezSep 12, 2025
What causes the clutch not to engage on Toro Lawn Mower?
- J
  Jimmy HudsonSep 12, 2025
  If the clutch on your Toro Lawn Mower doesn't engage, here are a few things to check: First, see if the fuse is blown and replace it if necessary. Check for low voltage supply at the clutch, and inspect the coil resistance, battery charge, charging system, and wiring connections, replacing components if needed. If the coil is damaged, replace the clutch. For inadequate current supply, repair or replace the clutch lead wire or electrical system and clean the connector contacts. If the rotor/armature air gap is too large, remove the shim or replace the clutch.
C
coxbrookeNov 15, 2025
Why won't my Toro 74490 Lawn Mower engine start or keep running?
- J
  Jose NguyenNov 15, 2025
  If your Toro Lawn Mower engine won't start, starts with difficulty, or stops running, several factors could be the cause. First, ensure the fuel tank isn't empty and the fuel shut-off valve is open; add fuel or open the valve as needed. Check the oil level and add oil if it's low. Make sure the throttle is positioned midway between the slow and fast settings. Inspect the fuel filter for dirt and replace if necessary. Also, examine the air cleaner and replace or clean the element if it's dirty. Check the spark plug wire connection and adjust or replace the spark plug if it is improperly gapped or fouled. If the seat switch is not functioning properly, check the seat-switch indicator and replace the seat if needed. Inspect the electrical connections, cleaning them with electrical-contact cle...

Toro 74490 Specifications

General

Model	74490
Engine	Toro 163cc
Engine Displacement	163 cc
Cutting Width	22 inches
Start Type	Pull Start
Deck Material	Steel
Cutting Height	1 to 4 inches
Weight	81 lbs
Mulching Capability	Yes
Bagging Capability	Yes
Side Discharge Capability	Yes
Drive Type	Self-Propelled
Drive System	Rear-Wheel Drive