Husqvarna YTH20K46 owner manual Troubleshooting Points, Problem Cause Correction

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 YTH20K46 Safe Operation Practices for Ride-On Mowers Safety RulesGeneral Operation II. Slope OperationGeneral Service ServiceIII. Children IV. TowingTable 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 Know Your Tractor HOW to USE Your Tractor To Adjust Gauge Wheels See Fig To Adjust Mower Cutting Height See FigSystem Characteristics To Operate MowerBefore Starting the Engine Service REMINDER/HOUR MeterTo Operate on Hills Check Engine OIL LevelPurge Transmission To Start Engine See FigAutomatic Transmission Warm UP Mowing Tips Lubrication Chart MaintenanceTractor BatteryBrake Operation Blade CareEngine Muffler CleaningSpark Plugs IN-LINE Fuel Filter See FigTo Install Mower See Fig Service and AdjustmentsTo Remove Mower See Fig ALL Mower Pulley Grooves Important Check Belt for Proper RoutingTo Level Mower TOREPLACEMOTIONDRIVEBELTSeeFig.28 To Replace Mower Drive Belt See FigTo Check Brake To Start Engine with a Weak Battery See FigFront Wheel TOE-IN/CAMBER To Remove Wheel for Repairs See FigTo Adjust Choke Control To Adjust Throttle Control CableTo Adjust Carburetor To Replace Headlight BulbOther StorageFuel System Engine OILProblem Cause Correction Troubleshooting PointsEngine dies when Tractor - Model Number YTH20K46 96043003301, Product no 43 SchematicElectrical KEY Part Description Chassis Tractor - Model Number YTH20K46 96043003301, Product no 43 Drive KEY Part NO. NO. Description Steering Assembly Engine 30!2+ª!22%34%2ª+4532 19 Seat Seat AssemblyWheels and Tires DecalsMower Deck 532 19 100 Mower LiftOnly Ride UP and Down Hill Not Across Hill Degrees MAX Suggested Guide for Sighting Slopes for Safe OperationService Notes Service Notes 532 41 91-66 Rev 10.09.08 SBW
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YTH20K46 specifications

The Husqvarna YTH20K46 is a premier riding lawn mower designed for homeowners who seek efficiency, durability, and ease of use while maintaining their lawn. This versatile machine combines power and performance with advanced technologies, making it a reliable choice for various landscaping tasks.

One of the standout features of the YTH20K46 is its robust 20 HP Kohler engine, which provides ample power to handle even the toughest mowing conditions. The engine's design focuses on durability and efficiency, ensuring that users can tackle their larger lawns with ease and minimal maintenance. This riding mower is equipped with a 46-inch cutting deck, allowing for wide mowing swathes that significantly reduce mowing time while delivering an exceptional cut quality.

The mower employs an innovative automatic transmission system, which simplifies operation with a pedal-controlled system. This feature allows the operator to seamlessly adjust speed without the need for manual gear shifting, providing greater comfort during operation. The intuitive controls ensure tasks can be completed efficiently, even for less experienced users.

Another significant aspect of the YTH20K46 is its adjustable cutting height feature. Users can easily select from various cutting heights to achieve the desired lawn finish, ranging from 1.5 to 4 inches. This versatility is essential for adapting to different grass types and seasonal changes.

For added convenience, the Husqvarna YTH20K46 incorporates maintenance-friendly technology, such as an easy-access oil filter and a removable deck for quick blade sharpening or replacement. This attention to maintenance ensures that users can keep their mower in top working condition with minimal effort.

Ergonomics is also a key consideration in the design of this mower. The comfortable high-back seat provides excellent support during long mowing sessions, while the ergonomic steering wheel enhances maneuverability. Additionally, the mower features a built-in hour meter to keep track of maintenance intervals.

In summary, the Husqvarna YTH20K46 is an impressive riding mower that combines powerful performance, user-friendly features, and advanced technology. Its reliability and efficiency make it an ideal choice for homeowners looking to maintain their lawns effortlessly while achieving professional-quality results. With its durable construction and robust capabilities, the YTH20K46 stands out as a top contender in the riding mower category.