Toro 74740 - User Manual

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FormNo.3394-181RevA

TimeCutter

®

SS5425Riding

Mower

ModelNo.74740—SerialNo.315000001andUp

Registeratwww.Toro.com.

OriginalInstructions(EN)

*3394-181*A

Table of Contents

Questions and Answers

W
whitneypeterSep 10, 2025
What to do if Toro 74740 Lawn Mower starter does not crank?
- M
  Michelle WilliamsSep 10, 2025
  If the starter on your Toro Lawn Mower doesn't crank, make sure the blade-control switch is disengaged and the motion-control levers are in the PARK position. Also, check if the battery is dead (charge it), if the electrical connections are corroded or loose (check them for good contact), or if a fuse is blown (replace it). If a relay or switch is damaged you should contact an Authorized Service Dealer.
S
Shelley RussellAug 22, 2025
Why does my Toro Lawn Mower engine not start?
- R
  Roger RobinsonAug 22, 2025
  Your Toro Lawn Mower might not be starting due to several reasons. Check if the fuel tank is empty and fill it if needed. A dirty air cleaner can also cause this issue, so clean or replace it. Ensure the spark plug wire(s) is securely connected to the spark plug. Inspect the spark plug(s) for damage or incorrect gap and replace if necessary. Also, a clogged fuel filter can prevent the engine from starting, so replace it if it's dirty. If there is incorrect fuel in the fuel tank, drain the tank and replace the fuel with the proper type. Finally, ensure that the oil level in the crankcase is adequate, adding oil if it's low.
T
timothywhiteAug 25, 2025
Why does my Toro Lawn Mower engine not start, start hard, or fail to keep running?
- K
  karlaarcherAug 25, 2025
  Several factors can cause your Toro Lawn Mower engine to fail to start, start with difficulty, or not stay running. It could be due to an empty fuel tank, so fill it up. The air cleaner might be dirty, in which case you should clean or replace it. Check if the spark plug wire is loose or disconnected and install it correctly. A pitted, fouled spark plug with an incorrect gap should be replaced with a new one, correctly gapped. Also, the fuel filter could be dirty, so replace it. The oil level in the crankcase may be low, so add oil.
T
tjonesAug 26, 2025
Why is my Toro 74740 Lawn Mower cutting height uneven?
- W
  William MillerAug 26, 2025
  Uneven cutting height on your Toro Lawn Mower can stem from several issues. Start by sharpening the blade(s). If a cutting blade is bent, replace it. Ensure the mower is level from side to side and front to rear. Check the anti-scalp wheel setting and adjust its height if necessary. Clean the underside of the mower if it's dirty. Adjust the tire pressure to the correct level.
E
Eric ThompsonAug 27, 2025
Why does my Toro 74740 engine lose power?
- H
  holmestylerAug 27, 2025
  If your Toro Lawn Mower engine is losing power, it could be due to several reasons: excessive engine load (reduce the ground speed), a dirty air cleaner (clean it), low oil level in the crankcase (add oil), plugged cooling fins and air passages (remove the obstruction), or a faulty spark plug (install a new one). If the fuel-tank vent is blocked, there is dirt in the fuel filter, there is dirt, water, or stale fuel in the fuel system, or there is incorrect fuel in the fuel tank you should contact an Authorized Service Dealer.
T
Terry WallaceAug 29, 2025
How to fix uneven cutting height on Toro 74740?
- K
  Karen CoxAug 29, 2025
  Uneven cutting height with your Toro Lawn Mower can result from dull blades (sharpen them), bent cutting blades (install new ones), an unlevel mower (level it from side-to-side and front-to-rear), an incorrectly set anti-scalp wheel (adjust its height), a dirty mower underside (clean it), or incorrect tire pressure (adjust it). If a blade spindle is bent you should contact an Authorized Service Dealer.
N
nicholas43Sep 18, 2025
What to do if my Toro 74740 Lawn Mower has an abnormal vibration?
- L
  Louis GarciaSep 18, 2025
  An abnormal vibration in your Toro Lawn Mower could be due to several factors: * Loose engine-mounting bolts: Tighten them securely. * Loose engine pulley, idler pulley, or blade pulley: Tighten the appropriate pulley. * Bent or unbalanced cutting blade(s): Replace with a new cutting blade(s). * Loose blade mounting bolt: Tighten the blade-mounting bolt.
D
Darlene KleinSep 12, 2025
Why is my Toro Lawn Mower vibrating abnormally?
- R
  Robert MillerSep 12, 2025
  An abnormal vibration in your Toro Lawn Mower could be due to loose engine-mounting bolts (tighten them), a loose engine pulley, idler pulley, or blade pulley (tighten the appropriate pulley), bent or unbalanced cutting blades (install new ones), or a loose blade-mounting bolt (tighten it). If the engine pulley is damaged or a blade spindle is bent you should contact an Authorized Service Dealer.
M
Matthew CollinsSep 8, 2025
How to fix Toro 74740 when engine overheats?
- C
  Christine RodriguezSep 8, 2025
  Your Toro Lawn Mower engine may overheat if the engine load is excessive (reduce the ground speed), the oil level in the crankcase is low (add oil), the cooling fins and air passages under the engine blower housing are plugged (remove the obstruction), or the air cleaner is dirty (clean or replace the air-cleaner element). For fuel system issues, contact an Authorized Service Dealer.
R
Russell GregorySep 4, 2025
What to do if my Toro 74740 cutting height is uneven?
- J
  Jennifer ReyesSep 5, 2025
  If your Toro Lawn Mower is cutting unevenly, several factors could be responsible. Start by checking if the blade(s) is sharp; if not, sharpen them. Also, inspect the cutting blade(s) for bending and replace if necessary. Ensure the mower is level from side to side and front to rear. Verify that the anti-scalp wheel is set correctly and adjust its height if needed. Clean the underside of the mower deck, as accumulated debris can affect cutting performance. Check and adjust the tire pressure to the correct levels.

Toro 74740 Specifications

General

Cutting Width	22 in
Drive Type	Self-Propelled
Power Source	Gasoline
Engine Displacement	159 cc
Product Type	Walk-Behind Mower

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