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Toro 74991 - User Manual

Toro 74991
76 pages
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FormNo.3396-233RevD
ZMaster
®
Professional5000
SeriesRidingMower
with60inTURBOFORCE
®
SideDischarge
Mower
ModelNo.74991—SerialNo.315000001andUp
Registeratwww.Toro.com.
OriginalInstructions(EN)
*3396-233*D

Table of Contents

Questions and Answers

  • D
    duffybrittanySep 2, 2025
    How to fix uneven cutting height on Toro Lawn Mower?
    • K
      Kristine WalkerSep 2, 2025
      To address an uneven cutting height with your Toro Lawn Mower: * Sharpen the blades if they are not sharp. * Replace bent cutting blades. * Level the mower deck from side-to-side and front-to-rear. * Clean the underside of the mower if it is dirty. * Adjust the tire pressure to the correct level. For a bent blade spindle, it is recommended to contact an Authorized Service Dealer.
  • J
    Julie ThompsonSep 2, 2025
    What to do if my Toro 74991 engine loses power?
    • E
      Erik CastroSep 2, 2025
      If your Toro Lawn Mower engine is losing power, try these steps: * Reduce the ground speed if the engine load is excessive. * Clean the air-cleaner element if it is dirty. * 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 contains dirt. For issues related to dirt, water, or stale fuel in the fuel system, contact an Authorized Service Dealer.
  • S
    Sarah KingSep 1, 2025
    How to fix an uneven cutting height on my Toro Lawn Mower?
    • S
      Sharon PorterSep 2, 2025
      If your Toro Lawn Mower is producing an uneven cutting height, try sharpening the blades, installing new cutting blades, leveling the mower deck from side-to-side and front-to-rear, cleaning the underside of the mower, or adjusting the tire pressure. If the issue persists, contact an Authorized Service Dealer.
  • B
    barbara68Sep 1, 2025
    Why is my Toro 74991 engine losing power?
    • H
      hoopernatalieSep 1, 2025
      Your Toro Lawn Mower engine may lose power for several reasons. First, the engine load might be excessive, so reduce the ground speed. A dirty air cleaner can also cause power loss, so clean the air-cleaner element. Ensure the oil level in the crankcase is sufficient by adding oil if it's low. Lastly, check if the cooling fins and air passages above the engine are plugged and remove any obstructions.
  • S
    simondustinSep 1, 2025
    What to do if my Toro 74991 produces an uneven cutting height?
    • J
      jennakerrSep 1, 2025
      An uneven cutting height with your Toro Lawn Mower can result from dull or bent blades; sharpen the blade(s) or install new cutting blade(s). Also, the mower deck might not be level; level the mower deck from side-to-side and front-to-rear. A dirty mower underside can also cause this issue; clean the underside of the mower. Incorrect tire pressure could also be the cause; adjust the tire pressure.
  • J
    Julie ContrerasAug 31, 2025
    Why does my Toro Lawn Mower produce an uneven cutting height?
    • K
      kathy73Sep 1, 2025
      An uneven cutting height with your Toro Lawn Mower can be caused by several factors. The blades might not be sharp, so sharpen them. Bent cutting blades can also cause this issue, so install new ones if necessary. Ensure the mower deck is level from side-to-side and front-to-rear. Clean the underside of the mower, as dirt buildup can interfere with cutting height. Adjust the tire pressure to the correct level. For a bent blade spindle, contact an Authorized Service Dealer.
  • P
    Paul HutchinsonAug 31, 2025
    Why Toro Lawn Mower machine does not drive?
    • S
      Sherri WallaceAug 31, 2025
      If your Toro Lawn Mower isn't driving, start by checking that the bypass valves are closed tight. Inspect the pump belt for wear, looseness, or breakage, and change the belt if needed. Also, ensure the pump belt is properly on the pulley. If the idler spring is broken or missing, replace it. Finally, check the hydraulic-fluid level and add fluid to the reservoirs if it's low, or let it cool down if it's too hot.
  • P
    Phillip TurnerAug 31, 2025
    Why Toro 74991 Lawn Mower engine loses power?
    • B
      Barbara BlankenshipAug 31, 2025
      If your Toro Lawn Mower engine is losing power, consider these potential causes. First, the engine load might be excessive, so reduce the ground speed. A dirty air cleaner can also cause power loss, so clean the air-cleaner element. Additionally, check the oil level in the crankcase and add oil if it's low. Finally, ensure the cooling fins and air passages above the engine are free from obstructions.
  • J
    Jason CookAug 31, 2025
    Why Toro 74991 starter does not crank?
    • J
      Julie LutzAug 31, 2025
      If the starter on your Toro Lawn Mower isn't cranking, there are several things to check. Ensure that the blade-control switch (PTO) is disengaged and the parking brake is engaged. Also, the motion-control levers must be in the NEUTRAL-LOCK position, and the operator must be seated. A dead battery can prevent cranking, so charge the battery. Check the electrical connections for good contact, as corrosion or looseness can cause issues. If the fuse is blown, replace it. For a worn or damaged relay or switch, contact an Authorized Service Dealer.
  • R
    Rebecca JohnsonAug 30, 2025
    What to do if my Toro 74991 Lawn Mower blades do not rotate?
    • J
      Jill EdwardsAug 30, 2025
      If the blades aren't rotating, the mower deck belt might be worn, loose, or broken; install a new deck belt. Also, the mower deck belt may be off the pulley; install the mower deck pulley and check the idler pulley, idler arm, and spring for correct position and function. Check the belt tension or install a new belt if the pump drive belt is worn, loose, or broken. Replace the spring if the idler spring is broken or missing.

Toro 74991 Specifications

General IconGeneral
Cutting Width22 inches
Start TypeRecoil
Drive TypeSelf-Propelled
Starting SystemRecoil
Deck MaterialSteel
Oil Capacity20 oz
Cutting Height1 inch to 4 inches
Mulch, Bag, Side DischargeMulch, Bag, Side Discharge
Wheel Size8 in (20.3 cm) Front / 11 in (27.9 cm) Rear

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