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:

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.
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.
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.
Y
yparksSep 23, 2025
Why does the cutting deck on my Toro 30426 Lawn Mower raise, but not stay up?
- B
  bradleymadisonSep 23, 2025
  If the cutting deck on your Toro Lawn Mower raises but does not stay up, there are a few potential causes. Start by inspecting and repairing any leaking lift circuit lines or fittings. Also, the lift cylinder might be damaged and need inspection, repair, or replacement. Lastly, the detents in the lift/lower control valve could be worn, requiring repair or replacement.
C
Cynthia FullerSep 18, 2025
Why are all the cutting deck motors on my Toro Lawn Mower operating slowly?
- C
  Christina IngramSep 18, 2025
  If all the cutting deck motors on your Toro Lawn Mower operate slowly, it could be due to a low engine RPM, so increasing the engine RPM may resolve the issue. Another possibility is that the deck motor or gear pump section is damaged, requiring inspection and repair or replacement.
B
Beverly WebbSep 23, 2025
Why is one cutting deck motor not operating on my Toro 30426 Lawn Mower?
- C
  Christine BondSep 23, 2025
  If one cutting deck motor on your Toro Lawn Mower won't operate, there could be several reasons. The system pressure to the affected motor might be low, so increasing the system pressure to the motor could resolve the issue. If the key on the affected deck motor is damaged (meaning the motor rotates but the deck blades don't), replace the damaged key. A faulty solenoid valve in the deck manifold could also be the cause, requiring replacement. Additionally, a damaged or sticking cartridge valve in the deck manifold might be the problem, and it should be repaired or replaced. Finally, the deck motor or gear pump section could be damaged, requiring inspection and repair or replacement.
G
Gina BeasleyAug 29, 2025
Why won't the cutting deck on my Toro Lawn Mower lower?
- G
  George PeckAug 29, 2025
  If the cutting deck (or wing decks) on your Toro Lawn Mower won't lower, it could be because the lift arm pivots are binding, there's an electrical problem, the solenoid valve (S1) in the lift/lower manifold is faulty, the counterbalance pressure is excessive, or the lift cylinder is damaged. Free up any binding lift arm pivots, troubleshoot the electrical system, repair or replace the faulty solenoid valve, check the counterbalance pressure, and inspect the lift cylinder for damage.
M
Michael WatsonAug 28, 2025
Why does my Toro 30426 Lawn Mower cutting deck section stop under load?
- G
  Gabriel KeyAug 28, 2025
  If the cutting deck section on your Toro Lawn Mower stops under load, it could be because the relief valve in the PTO manifold for the affected deck is by-passing, the deck motor has internal leakage (by-passing oil), or the cutting deck gear pump section is worn or damaged. Repair or replace the relief valve, inspect the deck motor for internal leakage, and check the cutting deck gear pump section for wear or damage.
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.
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.

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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