Toro 74938 User Manual

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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:

J
jeremythomasAug 28, 2025
Why don't the blades rotate on my Toro Lawn Mower?
- G
  George JonesAug 28, 2025
  If the blades on your Toro Lawn Mower aren't rotating, it could be due to: * A worn, loose, or broken mower deck belt; install a new deck belt. * The mower deck belt being off the pulley; install the mower deck pulley and check the idler pulley, idler arm, and spring for correct position and function. * A worn, loose, or broken pump drive belt; check the belt tension or install a new belt. * A broken or missing idler spring; replace the spring.
B
Bobby McmillanAug 28, 2025
What to do if my Toro 74938 engine loses power?
- J
  jenniferroachAug 28, 2025
  If your Toro Lawn Mower engine is losing power, consider the following: * Reduce the ground speed if the engine load is excessive. * Clean the air-cleaner element. * Add oil to the crankcase if the oil level is low. * Remove any obstructions from the cooling fins and air passages above the engine. * Clean or replace the fuel cap if the vent hole is plugged. * Replace the fuel filter if it is dirty.
E
Eric MillerSep 5, 2025
Why is the malfunction-indicator light (MIL) on my Toro 74938 on?
- B
  Brian BurnsSep 5, 2025
  The malfunction-indicator light (MIL) on your Toro Lawn Mower might come on due to several reasons: * The engine may be too hot; if so, shut it off and let it cool. * There might be old fuel in the fuel tank; use new fuel instead. * The fuel-shutoff valve may not be completely open; open it fully. * The air cleaner could be dirty; ensure the air cleaner and precleaner are clean, replacing them if needed. * The battery may not be charged; charge or replace it. * There may be low voltage from the battery, so ensure you are using a good 12 V battery and that it is fully charged. * A fuse may be blown; check and replace any blown fuses.
J
James JohnsonAug 27, 2025
Why Toro 74938 blades do not rotate?
- T
  Tracy SullivanAug 27, 2025
  If the blades on your Toro Lawn Mower aren't rotating, it could be due to a worn, loose, or broken mower deck belt; in this case, install a new deck belt. Another possibility is that 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, check the pump drive belt for wear, looseness, or breakage, and adjust the belt tension or install a new belt. Finally, inspect the idler spring and replace it if it's broken or missing.
A
Amanda CastilloAug 27, 2025
Why will my Toro 74938 Lawn Mower engine not start, starts hard, or fails to keep running?
- R
  Roger MirandaAug 27, 2025
  If your Toro Lawn Mower engine will not start, starts hard, or fails to keep running, try these steps: Fill the fuel tank. Open the fuel shutoff valve. Add oil to the crankcase. Be sure that the throttle control is midway between the “SLOW” and “FAST” positions. Replace the fuel filter. Clean or replace the air cleaner element. Check the seat switch indicator and replace the seat if needed. Check the electrical connections for good contact; clean the connector terminals thoroughly with electrical contact cleaner, apply dielectric grease, and reconnect. Clean, adjust, or replace the spark plug. Check the spark plug wire connection. If the issue continues, contact an Authorized Service Dealer.
B
Brett KnappAug 26, 2025
How to fix a Toro 74938 Lawn Mower engine that loses power?
- T
  trevormurphyAug 27, 2025
  If your Toro Lawn Mower engine is losing power, it could be due to several reasons. First, check if the engine load is excessive and reduce the ground speed. A dirty air cleaner can also cause power loss, so clean the air-cleaner element. Ensure that the oil level in the crankcase is adequate, adding oil if necessary. Additionally, inspect the cooling fins and air passages above the engine for any obstructions and remove them. Lastly, the vent hole in the fuel cap may be plugged, so clean or replace the fuel cap.
B
Brandon WalkerAug 26, 2025
What to do if my Toro Lawn Mower engine does not start?
- R
  rstephensonAug 26, 2025
  If your Toro Lawn Mower engine doesn't start, starts hard, or fails to keep running, several factors could be at play. First, ensure the fuel tank isn't empty and the fuel-shutoff valve is open. Check that the oil level in the crankcase is sufficient and the throttle is positioned midway between the SLOW and FAST settings. Also, a dirty fuel filter or air cleaner can cause issues, so replace or clean them as needed. Inspect the spark plug, adjusting or replacing it if it's fouled or improperly gapped, and verify the spark-plug wire is securely connected. Finally, check the seat-switch indicator, replacing the seat if necessary.
R
riley66Aug 26, 2025
Why is the cutting height uneven on my Toro 74938 Lawn Mower?
- J
  Joseph FischerAug 26, 2025
  Uneven cutting height on your Toro Lawn Mower can be caused by: * Dull blade(s); sharpen the blade(s). * Bent cutting blade(s); install new cutting blade(s). * Mower deck not level; level the mower deck from side-to-side and front-to-rear. * Dirty underside of mower; clean the underside of the mower. * Incorrect tire pressure; adjust the tire pressure.
M
Megan MitchellAug 25, 2025
What to do if the blades on my Toro 74938 do not rotate?
- D
  dianemorrisonAug 26, 2025
  If the blades on your Toro Lawn Mower do not rotate: 1. Install a new deck belt. 2. Install the mower deck pulley and check the idler pulley, idler arm, and spring for correct position and function. 3. Check the belt tension or install a new belt. 4. Replace the spring.
B
Brian SmithAug 25, 2025
Why is my Toro 74938 Lawn Mower resulting in an uneven cutting height?
- M
  Melissa SullivanAug 26, 2025
  If mowing results in an uneven cutting height with your Toro Lawn Mower, try the following: 1. Sharpen the blade(s). 2. Install new cutting blade(s). 3. Level the mower deck from side-to-side and front-to-rear. 4. Clean the underside of the mower. 5. Adjust the tire pressure.

Toro 74938 Specifications

General

Start Type	Electric/Recoil
Weight	90 lbs
Engine	Briggs & Stratton EXi 163cc w/Just Check & Add
Deck Material	Steel
Mulching Capability	Yes
Bagging Capability	Yes
Side Discharge Capability	Yes
Engine Type	Gas
Cutting Width	22 inches
Drive System	Rear-wheel drive
Fuel Capacity	0.5 gallons
Cutting Height	1.5-4 inches
Fuel Tank Capacity	0.5 gallons
Starter Type	Recoil

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