Why will low speed (4WD) not disengage on my Toro Lawn Mower?
If the low speed (4WD) on your Toro Lawn Mower won't disengage, it could be due to an electrical problem, a faulty solenoid valve (SV) in the 4WD hydraulic manifold, or a damaged or sticking cartridge valve in the 4WD manifold. Troubleshoot the electrical system, repair or replace the faulty solenoid valve, and inspect the cartridge valve for damage or sticking.
Why is the steering on my Toro Lawn Mower inoperative?
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.
Why is hydraulic oil foaming in my Toro Groundsmaster 4100-D Lawn Mower reservoir?
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.
What to do if cutting deck on my Toro Groundsmaster 4100-D won't stay up?
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.
Why does my Toro Lawn Mower cutting deck section stop under load?
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.
Why won't the cutting deck on my Toro Groundsmaster 4100-D lower?
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.
Why does cooling fan not rotate on my Toro Lawn Mower?
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.
Why does my Toro Lawn Mower travel too far before stopping?
If your Toro Lawn Mower travels too far before stopping when the traction pedal is released, the traction linkage may be out of adjustment, the traction pedal may not be returning to neutral, the charge pressure may be low, or the piston (traction) pump servo control valve orifices may be plugged or damaged. Adjust the traction linkage, ensure the traction pedal returns to neutral, check the charge pressure, and clean or replace the piston pump servo control valve orifices.
Why will low speed (4WD) not engage on my Toro Lawn Mower?
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.
Why does cooling fan always rotates at slow speed on my Toro Lawn Mower?
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.
General| Transmission | Hydrostatic |
|---|---|
| Speed Range | 0-10 mph |
| Number of Blades | 3 |
| Deck Lift | Manual |
| Cutting Width | 72 inches |
| Fuel Capacity | 12 US gallons (45.4 L) |
| Deck Type | Floating |
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