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
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.
E
Edward DuranSep 9, 2025
What to do if my Toro Lawn Mower clutch does not engage?
- C
  Cassandra KhanSep 9, 2025
  If the clutch on your Toro Lawn Mower doesn't engage, it could be due to a blown fuse, low voltage supply at the clutch, a damaged coil, inadequate current supply, or a rotor/armature air gap that is too large. To address this, replace the fuse, check the coil resistance, battery charge, charging system, and wiring connections, and replace components if necessary; repair or replace the clutch lead wire or electrical system and clean the connector contacts; remove the shim or replace the clutch.
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.
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.
M
Mrs. Shelly DavisSep 12, 2025
What to do if the clutch does not engage on my Toro 74938?
- M
  Matthew WilliamsSep 12, 2025
  If the clutch does not engage on your Toro Lawn Mower, start by replacing the fuse if it is blown. Check the coil resistance, battery charge, charging system, and wiring connections, and replace components if necessary. Also, check the coil and replace the clutch if it is damaged. Repair or replace the clutch lead wire or electrical system if there is inadequate current supply, and clean the connector contacts. Finally, remove the shim or replace the clutch if the rotor/armature air gap is too large.
C
Cody AriasSep 8, 2025
Why does the malfunction indicator light (MIL) come on in my Toro Lawn Mower?
- S
  stephaniewoodardSep 8, 2025
  The malfunction indicator light might illuminate due to several reasons: the engine overheating, old gas in the tank, a fuel shut-off valve not fully open, a dirty air cleaner, a discharged battery, incorrect or dirty fuel filters, unsecured sensor connections to the ECU and fuel injectors, low battery voltage, or a blown fuse. Try these solutions: turn off the engine to cool it, use new gas, fully open the fuel shut-off valve, clean or replace the air cleaner, charge or replace the battery, ensure a good 12 volt battery is being used and is fully charged, and check/replace any blown fuses. For issues related to fuel filters and sensor connections, it's best to contact an Authorized Service Dealer.
K
kbradshawSep 6, 2025
Why does my Toro Lawn Mower produce an uneven cutting height?
- D
  David JonesSep 6, 2025
  An uneven cutting height on your Toro Lawn Mower may result from: * Dull blade(s); sharpen the blade(s). * Bent cutting blade(s); install new cutting blade(s). * An unlevel mower deck; level the mower deck from side-to-side and front-to-rear. * A dirty mower underside; clean the underside of the mower. * Incorrect tire pressure; adjust the tire pressure.
K
Kevin StewartAug 30, 2025
How to fix uneven cutting height on Toro Lawn Mower?
- J
  Jerry HuangAug 30, 2025
  To fix an uneven cutting height on your Toro Lawn Mower, start by sharpening any dull blades or installing new ones if bent. Ensure the mower deck is level from side-to-side and front-to-rear. Clean the underside of the mower deck, adjust the tire pressure to the correct level. For a bent blade spindle, contact an Authorized Service Dealer.
J
Jamie MolinaAug 30, 2025
Why is my Toro 74938 Lawn Mower resulting in uneven cutting height?
- J
  jenna27Aug 30, 2025
  If your Toro Lawn Mower is mowing with an uneven cutting height, several factors could be responsible. Ensure the blades are sharp; if not, sharpen them. Bent cutting blades can also cause this, so install new ones. Check if the mower deck is level from side-to-side and front-to-rear, and adjust as needed. A dirty underside of the mower can interfere with cutting, so clean it. Also, verify that the tire pressure is correct. For a bent blade spindle, contact an Authorized Service Dealer.
C
Caleb FarleyAug 30, 2025
Why does the engine lose power in my Toro Lawn Mower?
- D
  Dr. Joseph BrownAug 30, 2025
  If your Toro Lawn Mower engine loses power, try the following: Reduce the ground speed. Clean the air cleaner element. Add oil to the crankcase. Remove any obstruction from the cooling fins and air passages. Clean or replace the fuel cap. Replace the fuel filter. If the problem continues, it is recommended to contact an Authorized Service Dealer.

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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