Husqvarna YTH20F42T owner manual Troubleshooting Points

Page 25

TROUBLESHOOTING POINTS

PROBLEM

 

CAUSE

 

CORRECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

Will not start

 

1.

Out of fuel.

 

1.

Fill fuel tank.

 

 

 

 

2.

Engine not “CHOKED” properly.

 

2.

See “TO START ENGINE” in Operation section.

 

 

 

 

3.

Engine flooded.

 

3.

Wait several minutes before attempting to start.

 

 

 

 

4.

Bad spark plug.

 

4.

Replace spark plug.

 

 

 

 

5.

Weak or dead battery.

 

5.

Recharge or replace battery.

 

 

 

 

6.

Dirty air filter.

 

6.

Clean/replace air filter.

 

 

 

 

7.

Dirty fuel filter.

 

7.

Replace fuel filter.

 

 

 

 

8.

Water in fuel.

 

8.

Empty fuel tank and carburetor, refill tank with fresh

 

 

 

 

 

 

 

 

gasoline and replace fuel filter.

 

 

 

 

9.

Loose or damaged wiring.

 

9.

Check all wiring.

 

 

 

 

10.

Carburetor out of adjustment.

 

10.

See “To Adjust Carburetor” in Service Adjustments

 

 

 

 

 

 

 

 

section.

 

 

 

 

11.

Engine valves out of adjustment.

 

11.

Contact an authorized service center/department.

 

 

 

 

 

 

 

 

 

 

Hard to start

 

1.

Dirty air filter.

 

1.

Clean/replace air filter.

 

 

 

 

2.

Bad spark plug.

 

2.

Replace spark plug.

 

 

 

 

3.

Weak or dead battery.

 

3.

Recharge or replace battery.

 

 

 

 

4.

Dirty fuel filter.

 

4.

Replace fuel filter.

 

 

 

 

5.

Stale or dirty fuel.

 

5.

Empty fuel tank and refill tank with fresh, clean gasoline.

 

 

 

 

6.

Loose or damaged wiring.

 

6.

Check all wiring.

 

 

 

 

7.

Carburetor out of adjustment.

 

7.

See “To Adjust Carburetor” in Service Adjustments

 

 

 

 

 

 

 

 

section.

 

 

 

 

8.

Engine valves out of adjustment.

 

8.

Contact an authorized service center/department.

 

 

 

 

 

 

 

 

 

 

Engine will not turn over

 

1.

Brake pedal not depressed.

 

1.

Depress brake pedal.

 

 

 

 

2.

Attachment clutch is engaged.

 

2.

Disengage attachment clutch.

 

 

 

 

3.

Weak or dead battery.

 

3.

Recharge or replace battery.

 

 

 

 

4.

Blown fuse.

 

4.

Replace fuse.

 

 

 

 

5.

Corroded battery terminals.

 

5.

Clean battery terminals.

 

 

 

 

6.

Loose or damaged wiring.

 

6.

Check all wiring.

 

 

 

 

7.

Faulty ignition switch.

 

7.

Check/replace ignition switch.

 

 

 

 

8.

Faulty solenoid or starter.

 

8.

Check/replace solenoid or starter.

 

 

 

 

9.

Faulty operator presence switch(es).

 

9.

Contact an authorized service center/department.

 

 

 

 

 

 

 

 

 

 

Engine clicks but will not

 

1.

Weak or dead battery.

 

1.

Recharge or replace battery.

 

start

 

2.

Corroded battery terminals.

 

2.

Clean battery terminals.

 

 

 

 

3.

Loose or damaged wiring.

 

3.

Check all wiring.

 

 

 

 

4.

Faulty solenoid or starter.

 

4.

Check/replace solenoid or starter.

 

 

 

 

 

 

 

 

 

 

Loss of power

 

1.

Cutting too much grass/too fast.

 

1.

Raise cutting height/reduce speed.

 

 

 

 

2.

Throttle in “CHOKE” position.

 

2.

Adjust throttle control.

 

 

 

 

3.

Build-up of grass, leaves and trash under mower.

 

3.

Clean underside of mower housing.

 

 

 

 

4.

Dirty air filter.

 

4.

Clean/replace air filter.

 

 

 

 

5.

Low oil level/dirty oil.

 

5.

Check oil level/change oil.

 

 

 

 

6.

Faulty spark plug.

 

6.

Clean and regap or change spark plug.

 

 

 

 

7.

Dirty fuel filter.

 

7.

Replace fuel filter.

 

 

 

 

8.

Stale or dirty fuel.

 

8.

Empty fuel tank and refill tank with fresh, clean gasoline.

 

 

 

 

9.

Water in fuel.

 

9.

Empty fuel tank and carburetor, refill tank with fresh

 

 

 

 

 

 

 

 

gasoline and replace fuel filter.

 

 

 

 

10.

Spark plug wire loose.

 

10.

Connect and tighten spark plug wire.

 

 

 

 

11.

Dirty engine air screen/fins.

 

11.

Clean engine air screen/fins.

 

 

 

 

12.

Dirty/clogged muffler.

 

12.

Clean/replace muffler.

 

 

 

 

13.

Loose or damaged wiring.

 

13.

Check all wiring.

 

 

 

 

14.

Carburetor out of adjustment.

 

14.

See “To Adjust Carburetor” in Service Adjustments

 

 

 

 

 

 

 

 

section.

 

 

 

 

15.

Engine valves out of adjustment.

 

15.

Contact an authorized service center/department.

 

 

 

 

 

 

 

 

 

 

Excessive vibration

 

1.

Worn, bent or loose blade.

 

1.

Replace blade. Tighten blade bolt.

 

 

 

 

2.

Bent blade mandrel.

 

2.

Replace blade mandrel.

 

 

 

 

3.

Loose/damaged part(s).

 

3.

Tighten loose part(s). Replace damaged parts.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

Image 25
Contents YTH20F42T Safe Operation Practices for Ride-On Mowers Safety RulesGeneral Operation II. Slope OperationIII. Children ServiceIV. Towing Table of Contents Unassembled Parts AssemblyTo Remove Tractor from Carton Unpack CartonCheck Deck Levelness Check Tire PressureCheck for Proper Position of ALL Belts Check Brake SystemOperation Reverse Operation System ROS on Position Know Your TractorTo SET Parking BRAKESee Fig HOW to USE Your TractorStopping To USE Throttle Control D See FigTo Adjust Gauge Wheels See Fig To Adjust Mower Cutting Height See FigTo USE Cruise Control -J See Fig To Operate MowerBefore Starting the Engine Service REMINDER/HOUR MeterTo Operate on Hills To Transport See FigsTo Start Engine See Fig ADD GasolinePurge Transmission Automatic Transmission Warm UPMowing Tips Before Each USE MaintenanceTractor BatteryBrake Operation TiresEngine Engine OIL Filter CleaningMuffler Spark PlugsTo Install Mower See Figs Service and AdjustmentsTo Remove Mower See Fig To Level Mower To Replace Mower Drive Belt See Fig Mower Drive Belt InstallationMower Drive Belt Removal To Check Brake To Replace Motion Drive Belt See FigFront Wheel TOE-IN/CAMBER To Remove Wheel for Repairs See FigTo Start Engine with a Weak Battery See Fig Replacing Battery See FigTo Replace Headlight Bulb Interlocks and RelaysTo Adjust Throttle Control Cable To Remove Hood and Grill Assembly See FigTo Adjust Choke Control To Adjust CarburetorOther StorageFuel System Engine OILTroubleshooting Points Engine dies when Tractor Model NO. YTH20F42T 96043000500, Product no 43 SchematicElectrical KEY Part NO. NO. Description Chassis KEY Part Description Drive KEY Part NO. NO. Description Steering Assembly Tractor Model NO. YTH20F42T 96043000500, Product no 43 Seat Assembly Wheels and Tires DecalsEngine KEY Part NO. NO. Description Mower Deck KEY Part Description Mower Lift Only Ride UP and Down Hill Not Across Hill Degrees MAX Suggested Guide for Sighting Slopes for Safe OperationWarranty Statement

YTH20F42T specifications

The Husqvarna YTH20F42T is a versatile and efficient riding lawn mower designed to meet the demands of residential lawn care. With its robust construction and user-friendly features, this model has gained popularity among homeowners looking for a reliable mowing solution.

At the heart of the YTH20F42T is a powerful 20 horsepower Kohler engine, providing ample power to tackle various terrain types. This engine not only ensures efficient mowing but also enhances overall durability and longevity. The automatic hydrostatic transmission allows for seamless speed adjustments and smooth transitions, making it easy to navigate around obstacles and varying landscape features.

One standout feature of the Husqvarna YTH20F42T is its 42-inch cutting deck, which strikes an ideal balance between maneuverability and cutting capacity. This deck size allows users to cover more ground in less time, making it suitable for medium to large-sized yards. The cutting height can be easily adjusted from 1.5 to 4 inches, giving users the flexibility to achieve their desired lawn appearance.

The mower is equipped with a washout port, facilitating quick and simple cleaning of the cutting deck. This feature enhances the mower’s maintenance routine, ensuring it operates efficiently and prolonging the life of the blades. Additionally, the mulching capability allows for nutrient recycling, promoting a healthier lawn while reducing the need for bagging grass clippings.

Comfort is not overlooked in the design of the YTH20F42T. It features an ergonomic seat with good back support, designed to keep users comfortable even during extended mowing sessions. The steering wheel is also positioned for easy access and control, enhancing the overall user experience.

Safety features, such as the automatic shutoff when the operator leaves the seat, provide peace of mind while operating the mower. The headlights ensure visibility during early morning or late evening mowing, making this mower a reliable choice any time of day.

In summary, the Husqvarna YTH20F42T combines power, efficiency, and comfort, making it an excellent choice for homeowners looking to maintain their lawns with ease. From its reliable engine to innovative features, this riding mower stands out as a go-to solution for effective lawn care.