Toro 30426 - User Manual

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Operator’s Manual

English (EN)

Form No. 3354–528 Rev B

Rotary Brush

Groundsmaster

)

4000–D & 4100–D

Model No. 30426—Serial No. 260000001 and Up

Questions and Answers

R
Robert HicksSep 16, 2025
Why does the cutting deck on my Toro 30426 stop under load?
- V
  Valerie JonesSep 16, 2025
  If the cutting deck on your Toro Lawn Mower stops under load, it could be due to several reasons. The relief valve in the deck manifold might be bypassing, requiring repair or replacement. Alternatively, the deck motor may have internal leakage, also known as bypassing oil, which would necessitate repair or replacement of the deck motor. Lastly, the cutting deck gear pump section could be inefficient, requiring inspection and repair or replacement.
D
davisgabrielaAug 25, 2025
Why is the steering on my Toro 30426 Lawn Mower inoperative?
- J
  Jon McclureAug 26, 2025
  If the steering on your Toro Lawn Mower is inoperative or sluggish, it could be caused by worn or binding steering components (like tie rods or steering cylinder ends), a binding steering cylinder, a low oil level in the hydraulic reservoir, a stuck or damaged steering relief valve in the steering control valve, internal leaks in the steering cylinder, a worn or damaged steering control valve, or a worn or damaged gear pump section. Inspect and repair or replace any worn or binding steering components. Maintain the correct hydraulic oil level. Repair or replace the steering relief valve if it's stuck or damaged. Inspect the steering cylinder, control valve, and gear pump section for any damage.
L
Laura MaddenAug 26, 2025
Why is hydraulic oil foaming in my Toro 30426 Lawn Mower reservoir?
- J
  Jose BrownAug 27, 2025
  If hydraulic oil in the reservoir of your Toro Lawn Mower foams, it could be due to a low hydraulic reservoir oil level, the wrong type of oil in the hydraulic system, or air leaking into a pump suction line. Maintain the proper hydraulic reservoir oil level, use the correct type of hydraulic oil, and check for air leaks in the pump suction line.
Y
yangrachelAug 27, 2025
What to do if cutting deck on my Toro 30426 Lawn Mower won't stay up?
- D
  David ThompsonAug 27, 2025
  If the cutting deck or wing decks on your Toro Lawn Mower raise but won't stay up, check for leaking lift circuit lines or fittings, damage to the lift cylinder, or damaged seals or faults in the cartridge valve(s) in the lift/lower manifold. Repair or replace any leaking lines or fittings, inspect the lift cylinder for damage, and repair or replace any faulty cartridge valve(s) with damaged seals.
M
Melinda BarnesSep 18, 2025
Why does my Toro 30426 Lawn Mower travel too far after releasing the traction pedal?
- L
  Luis EricksonSep 18, 2025
  If your Toro Lawn Mower travels too far before stopping when you release the traction pedal, it could be because the traction linkage is binding or out of adjustment; adjust or free up the traction linkage. Another potential cause is a damaged piston pump servo control valve, which would need to be repaired or replaced. Finally, check to ensure the traction pedal returns to neutral when released.
M
Mrs. Laura HamptonNov 22, 2025
Why is the hydraulic system on my Toro Lawn Mower operating hot?
- S
  Sarah LawsonNov 22, 2025
  If the hydraulic system in your Toro Lawn Mower operates hot, it could be due to several reasons: The engine RPM might be too low, the brakes could be applied or sticking, the hydraulic reservoir oil level might be low, the hydraulic oil could be contaminated or the wrong type, the piston pump by-pass valve could be open or damaged, the cooling system may not be working correctly, the charge pressure could be low, the traction circuit pressure might be incorrect, or the pumps or motors could be damaged. To resolve this, try increasing the engine RPM, releasing or fixing the brakes, checking the hydraulic reservoir oil level, replacing the hydraulic oil if it's contaminated or incorrect, checking the piston pump by-pass valve, ensuring the cooling system is working, checking the charge pres...
M
Mr. Bruce Stevens DDSSep 9, 2025
Why does cooling fan not rotate on my Toro 30426?
- D
  Donna SmithSep 9, 2025
  If the cooling fan on your Toro Lawn Mower does not rotate, it could be due to a worn or damaged fan motor, or a worn or damaged gear pump section for the engine cooling fan circuit. Repair or replace the worn or damaged fan motor and inspect the gear pump section for damage.
P
powelljordanSep 10, 2025
Why does cooling fan always rotates at fast speed on my Toro 30426 Lawn Mower?
- L
  Laura GordonSep 10, 2025
  If the cooling fan on your Toro Lawn Mower always rotates at fast speed, it could be due to a faulty fan control manifold proportional relief valve (PRV) or an electrical problem preventing the fan control manifold proportional relief valve (PRV) from operating. Repair or replace the faulty PRV and troubleshoot the electrical system.
T
Tara JacksonSep 3, 2025
Why will low speed (4WD) not engage on my Toro Lawn Mower?
- R
  Robert PorterSep 3, 2025
  If the low speed (4WD) on your Toro Lawn Mower will not engage, it could be due to an electrical problem, a faulty solenoid valve (SV) in the 4WD manifold, faulty cartridge valve(s) in the 4WD manifold, a loose or damaged drive gear on the rear axle motor or driven gear for the rear axle, or a damaged rear axle motor. Troubleshoot the electrical system, replace the faulty solenoid valve, repair or replace the cartridge valve(s), ensure the drive gear is secure, and inspect the rear axle motor.
A
Anthony KellySep 1, 2025
Why does cooling fan always rotates at slow speed on my Toro 30426?
- J
  Jordan AdamsSep 1, 2025
  If the cooling fan on your Toro Lawn Mower always rotates at a slow speed, the fan control manifold cartridge valve seals may be leaking, the check valve in the fan control manifold may not be seating properly, the fan control manifold proportional relief valve (PRV) may be stuck open, or the hydraulic fan motor may be worn or damaged. Repair or replace any leaking seals, ensure the check valve seats correctly, repair or replace the stuck PRV, and inspect the hydraulic fan motor for damage.

Toro 30426 Specifications

General

Engine Type	4-Cycle
Drive Type	Hydrostatic
Cutting Height Positions	7
Cutting Height	1.5 - 4.5 inches
Fuel Tank Capacity	3 gallons
Warranty	2 years limited
Engine	Briggs & Stratton 550E Series

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