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Toro 74938 - User Manual

Toro 74938
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FormNo.3375-649RevA
ZMaster
®
Professional6000
SeriesRidingMower
with60inor72inTURBOFORCE
®
Side
DischargeMower
ModelNo.74936—SerialNo.313000001andUp
ModelNo.74938—SerialNo.313000001andUp
g019887
Registeratwww.Toro.com.
OriginalInstructions(EN)
*3375-649*A

Table of Contents

Questions and Answers

  • R
    Robert DunnSep 12, 2025
    Why is the malfunction indicator light (MIL) on my Toro Lawn Mower on?
    • S
      Shannon FinleySep 12, 2025
      If the malfunction indicator light (MIL) on your Toro Lawn Mower comes on, there could be several reasons. The engine might be too hot, in which case you should turn it off and let it cool. Old gas in the tank can also trigger the light, so try using new gas. Ensure the fuel-shutoff valve is completely open. A dirty air cleaner can cause this issue, so clean or replace it as needed. Also, check the battery charge and replace the battery if necessary. If the problem persists, it could be due to incorrect or dirty fuel filters, loose connections to the sensors, low battery voltage, or a blown fuse. For fuel filters or sensor issues, contact an Authorized Service Dealer. Ensure you are using a good 12-volt battery and replace any blown fuses.
  • R
    Ronald SharpSep 12, 2025
    Why is my Toro Lawn Mower vibrating abnormally?
    • V
      Victoria GarciaSep 12, 2025
      If your Toro Lawn Mower is vibrating abnormally, several components could be the cause. Start by checking if the cutting blades are bent or unbalanced; if so, install new ones. Ensure the blade mounting bolt and engine mounting bolts are tightened securely. Also, check the engine pulley, idler pulley, or blade pulley for looseness and tighten the appropriate pulley. For a damaged engine pulley, bent blade spindle, or loose/worn motor mount, contact an Authorized Service Dealer.
  • A
    Allison MillerSep 13, 2025
    Why do the blades not rotate on my Toro 74938?
    • C
      Cheryl NunezSep 13, 2025
      If the blades on your Toro Lawn Mower do not rotate, it could be due to several reasons related to the belts and pulleys. Check if the mower deck belt is worn, loose, or broken; if so, install a new deck belt. If the mower deck belt is off the pulley, reinstall it and check 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, check if the idler spring is broken or missing and replace the spring if necessary.
  • G
    Glenn SmithSep 13, 2025
    Why does my Toro Lawn Mower not drive?
    • D
      Dominique StokesSep 13, 2025
      If your Toro Lawn Mower isn't driving, check if the bypass valves are closed tightly. If not, tighten them. A worn, loose, or broken pump belt can also cause this issue, so replace the belt. If the pump belt is off a pulley, replace the belt. A broken or missing idler spring can prevent driving, so replace the spring. Also, check the hydraulic oil level; if it's low, add hydraulic oil to the reservoirs, or let it cool down if it's too hot.
  • A
    Alexis BrewerSep 13, 2025
    What to do if the malfunction Indicator Light (MIL) comes on in my Toro 74938 Lawn Mower?
    • B
      Billy WeaverSep 13, 2025
      If the malfunction indicator light (MIL) comes on in your Toro Lawn Mower, try the following: Turn the engine off and let it cool. Use new gas. Open the fuel shut-off valve. Make sure that the air cleaner and precleaner are clean, and replace them if necessary. Charge or replace the battery. Ensure that a good 12 volt battery is being used and is fully charged. Check and replace any blown fuses. If the problem persists, it is best to contact an Authorized Service Dealer.
  • M
    Matthew WoodsSep 13, 2025
    What to do if the engine overheats on my Toro Lawn Mower?
    • B
      brewertravisSep 14, 2025
      If your Toro Lawn Mower engine overheats, try these steps: Reduce the ground speed. Add oil to the crankcase. Remove any obstruction from the cooling fins and air passages.
  • H
    Helen MendozaSep 14, 2025
    Why does my Toro Lawn Mower pull left or right (with levers fully forward)?
    • N
      noah97Sep 14, 2025
      If your Toro Lawn Mower pulls left or right (with levers fully forward), you can try to adjust the tracking and adjust the tire pressure in the drive tires.
  • S
    Susan CooperSep 14, 2025
    Why is there abnormal vibration in my Toro Lawn Mower?
    • S
      Stephanie DavidsonSep 14, 2025
      If your Toro Lawn Mower experiences abnormal vibration, try the following: Install new cutting blade(s). Tighten the blade mounting bolt. Tighten the engine mounting bolts. Tighten the appropriate pulley. If the issue continues, contact an Authorized Service Dealer.
  • L
    Lisa BenderSep 14, 2025
    What to do if my Toro 74938 Lawn Mower vibrates abnormally?
    • W
      wagnerrebeccaSep 14, 2025
      If your Toro Lawn Mower is vibrating abnormally, several issues could be the cause. Start by checking the cutting blades for bending or unbalance; install new blades if necessary. Ensure the blade mounting bolt is tight. Check the engine mounting bolts and tighten them if they are loose. Also, inspect the engine pulley, idler pulley, or blade pulley for looseness and tighten the appropriate pulley. If the engine pulley is damaged, the blade spindle is bent, or the motor mount is loose or worn, contact an Authorized Service Dealer.
  • J
    Jerry FuentesSep 14, 2025
    Why is my Toro Lawn Mower overheating?
    • M
      Michelle JosephSep 15, 2025
      If your Toro Lawn Mower is overheating, it could be due to a few reasons. The engine load might be too high, so try reducing the ground speed. Check the oil level in the crankcase and add oil if it's low. Also, ensure that the cooling fins and air passages above the engine are free from any obstructions. Remove any blockage to allow for proper cooling.

Toro 74938 Specifications

General IconGeneral
Start TypeElectric/Recoil
Weight90 lbs
EngineBriggs & Stratton EXi 163cc w/Just Check & Add
Deck MaterialSteel
Mulching CapabilityYes
Bagging CapabilityYes
Side Discharge CapabilityYes
Engine TypeGas
Cutting Width22 inches
Drive SystemRear-wheel drive
Fuel Capacity0.5 gallons
Cutting Height1.5-4 inches
Fuel Tank Capacity0.5 gallons
Starter TypeRecoil

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