Toro DH 140 User Manual

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FormNo.3377-264RevA

DH140LawnTractor

ModelNo.74560—SerialNo.313000001andUp

G012435

Registeratwww.Toro.com.

OriginalInstructions(EN)

*3377-264*A

Table of Contents

Other manuals for Toro DH 140

Setup Instructions4 pages

Questions and Answers:

S
salinascoreyAug 19, 2025
Why won't my Toro DH 140 Lawn Mower engine start?
- S
  shelbytaylorAug 19, 2025
  If your Toro Lawn Mower engine won't start, starts with difficulty, or doesn't keep running, there are several possible causes: * Ensure you are sitting on the seat. * Refill the fuel tank with gasoline if it's empty. * Clean or replace the air cleaner if it's dirty. * Make sure the spark plug wire is securely connected to the spark plug. * Replace a pitted, fouled, or incorrectly gapped spark plug with a new, correctly-gapped one. * Adjust the throttle cable if the choke isn't closing. * Replace the fuel filter if it's dirty. * Open the fuel shut-off valve if it's closed. For issues related to idle speed, mixture, or fuel system contamination, it's best to contact an Authorized Service Dealer.
T
Travis ConradAug 21, 2025
Why Toro Lawn Mower engine does not start?
- T
  tammybrooksAug 21, 2025
  If your Toro Lawn Mower engine doesn't start, starts hard, or fails to keep running, here are a few things to check: * Ensure you are sitting on the seat. * Make sure the fuel tank is filled with fuel. * Open the fuel shut-off valve. * Verify the wire is installed on the spark plug and that the spark plug is correctly gapped or new. * Consider cleaning or replacing the air cleaner element and replacing the fuel filter. * You may also need to adjust the throttle cable.
T
Timothy Wu DVMAug 25, 2025
How to fix Toro Lawn Mower when the starter does not crank?
- J
  john55Aug 25, 2025
  If the starter on your Toro Lawn Mower isn't cranking, try the following: * Move the blade control (PTO) knob to the Disengaged position. * Set the parking brake. * Charge the battery. * Check the electrical connections for good contact. * Replace the fuse.
J
Joshua AcostaAug 26, 2025
Why does my Toro Lawn Mower engine lose power?
- K
  Kyle MillerAug 26, 2025
  If your Toro Lawn Mower engine loses power, consider these potential causes and solutions: * Reduce your ground speed if the engine load is excessive. * Clean the air cleaner element if it's dirty. * Add engine oil to the crankcase if the oil level is low. * Remove any obstructions from the cooling fins and air passages under the engine blower housing. * Replace the spark plug if it is pitted, fouled, or has an incorrect gap with a new, correctly-gapped spark plug. * Clean or replace the fuel cap if the vent hole is plugged. * Replace the fuel filter if it's dirty. For issues related to a contaminated fuel system, it's best to contact an Authorized Service Dealer.
K
kellymichaelAug 28, 2025
How to fix uneven cutting height on my Toro DH 140 Lawn Mower?
- E
  eric29Aug 28, 2025
  If the cutting height of your Toro Lawn Mower is uneven, here are some things to check: * Set the tire pressure to the correct level. * Adjust the height adjustment cable rod assembly to level the mower. * Clean the underside of the mower if it's dirty. * Tighten the blade mounting screws if they are loose. If the blade drive belt tension is incorrect, contact an Authorized Service Dealer.
L
Lindsey BowersAug 30, 2025
What to do if Toro DH 140 engine loses power?
- L
  Laura JohnsonAug 30, 2025
  If your Toro Lawn Mower engine loses power, here are some potential solutions: * Reduce your ground speed. * Clean the air cleaner element. * Add engine oil to the crankcase. * Remove any obstruction from the cooling fins and air passages. * Install a new, correctly-gapped spark plug. * Clean or replace the fuel cap. * Replace the fuel filter.
H
hwilsonSep 1, 2025
How to fix uneven cutting height on Toro Lawn Mower?
- K
  Kathleen MaySep 1, 2025
  To correct an uneven cutting height on your Toro Lawn Mower: * Set the tire pressure. * Adjust the height adjustment cable rod assembly. * Clean the underside of the mower. * Tighten the blade mounting screws.
F
Frank BarkerSep 3, 2025
What to do if my Toro DH 140 Lawn Mower starter does not crank?
- B
  Brittney McclainSep 3, 2025
  If the starter on your Toro Lawn Mower isn't cranking, here's what you can check: * Ensure the blade control (PTO) knob is in the Disengaged position. * Make sure the parking brake is set. * Charge the battery if it's dead. * Check the electrical connections for good contact. * Replace the fuse if it's blown. If the relay or switch is damaged, contact an Authorized Service Dealer.
G
Gina MarksSep 5, 2025
Why is my Toro Lawn Mower engine overheating?
- J
  Joseph HarrisSep 5, 2025
  If your Toro Lawn Mower engine overheats, here are some possible causes and solutions: * Reduce the ground speed if the engine load is excessive. * Add engine oil to the crankcase if the oil level is low. * Remove any obstructions from the cooling fins and air passages.
J
Juan GrahamSep 7, 2025
Why is my Toro DH 140 Lawn Mower vibrating abnormally?
- C
  carterrhondaSep 8, 2025
  If there is abnormal vibration in your Toro Lawn Mower, check the following: * Install new blades if the current ones are bent or unbalanced. * Tighten the blade mounting screws if they are loose. * Tighten the engine mounting bolts if they are loose. * Tighten the appropriate pulley if there is a loose engine pulley, idler pulley, or blade pulley. If the engine pulley is damaged or the blade drive belt is damaged, contact an Authorized Service Dealer.

Toro DH 140 Specifications

General

Brand	Toro
Model	DH 140
Category	Lawn Mower
Language	English

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