Husqvarna LT120 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.

Dirty air filter.

5.

Clean/replace air filter.

 

6.

Dirty fuel filter.

6.

Replace fuel filter.

 

7.

Water in fuel.

7.

Drain fuel tank and carburetor, refill tank with fresh

 

 

 

 

gasoline and replace fuel filter.

 

8.

Loose or damaged wiring.

8.

Check all wiring.

 

9.

Carburetor out of adjustment.

9.

See “To Adjust Carburetor” in Service Adjustments

 

 

 

 

section.

 

10.

Engine valves out of adjustment.

10.

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.

Drain fuel tank and refill with fresh 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.

Clutch/brake pedal not depressed.

1.

Depress clutch/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.

Set in “Higher Cut” position/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.

Drain fuel tank and refill with fresh gasoline.

 

9.

Water in fuel.

9.

Drain 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

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Contents LT 1 2 Safe Operation Practices for Ride-On Mowers IV. ServiceGeneral Operation II. Slope OperationCustomer Responsibilities Product SpecificationsModel Number LT120 Serial Table of Contents Contents of Hardware Pack Tools Required for Assembly AssemblyHOW to SET UP Your Tractor To Remove Tractor from CartonInstall Mulcher Plate See Figs Install Seat See FigCheck Tire Pressure To Convert to Bagging or DischargingCheck Deck Levelness Check for Proper Position of ALL BeltsOperation Know Your Tractor HOW to USE Your Tractor To Operate on Hills Before Starting the EngineTo Transport ADD GasolineMulching Mowing Tips Mowing TipsCustomer Responsibilities Lubrication ChartGeneral Recommendations Before Each USETractor BatteryBrake Operation TiresBelts EngineTransaxle Cooling LubricationMuffler CleaningSpark Plugs To Install Mower See Fig Service and AdjustmentsTo Remove Mower See Fig FRONT-TO-BACK Adjustment See Figs To Level Mower HousingBelt Installation To Adjust Brake See FigTo Replace Mower Blade Drive Belt See Fig To Replace Motion Drive Belt See FigTo Start Engine with a Weak Battery See Fig To Adjust Steering Wheel AlignmentTransaxle Shifter Linkage and AD- Justment See Figs Front Wheel TOE-IN/CAMBERTo Adjust Throttle Control Cable See Fig To Remove Hood and Grill Assembly See FigTo Replace Headlight Bulb Interlocks and RelaysPreliminary Setting To Adjust Carburetor See FigFinal Setting Acceleration TestOther StorageFuel System Engine OILProblem Cause Correction Troubleshooting PointsOFF Slope CUT This OUT Dotted Is aLimited Warranty Warranty StatementIgnition Switch SchematicWiring Insulated Clips Electrical KEY Part NO. NO. Description Chassis and Enclosures Repair Parts Drive KEY Part NO. no Description Steering Assembly KEY Part Description NO. no Seat Assembly Wheels & Tires DecalsKEY Part Description Engine Repair Parts Mower Deck Repair Parts Mower Lift Repair Parts Peerless Transaxle Model Number 930-054A Part Description Rev 10.07.96 Kfsw

LT120 specifications

The Husqvarna LT120 represents a remarkable balance of performance, durability, and user-friendly design, making it an ideal choice for homeowners looking to maintain their lawns efficiently. This riding lawn mower is engineered with a focus on comfort and functionality, ensuring that each mowing session is as productive as possible.

One of the most notable features of the LT120 is its powerful 17.5 HP Briggs & Stratton engine. This reliable engine ensures that the mower can tackle various terrains effortlessly, offering consistent power and performance even in challenging conditions. The efficient engine design also translates into lower fuel consumption, making it a cost-effective solution for lawn maintenance.

The LT120 boasts a 42-inch cutting deck, which allows for considerable coverage in a single pass. The deck is constructed from stamped steel, ensuring durability and longevity while providing a clean, precise cut. Additionally, the cutting height can be easily adjusted to six different settings, ranging from one to four inches, giving users the flexibility to achieve their desired lawn height.

For user comfort, the LT120 features an ergonomic steering wheel and a comfortable, adjustable seat. These enhancements make it easier for users to navigate their lawns for extended periods without discomfort. The mower's compact design also contributes to its maneuverability, allowing it to reach tight spaces and corners that larger models might struggle with.

Another impressive aspect of the Husqvarna LT120 is its easy-to-use hydrostatic transmission. This technology allows for smooth and seamless speed adjustments without the need for manual gear shifting. Users can simply press the pedals to change speed and direction, making the mowing experience more intuitive and less physically demanding.

Safety is paramount in the design of the LT120. It is equipped with features such as an automatic blade engagement system, which ensures that the blades only engage when the operator is seated. Additionally, the machine includes a reverse operating system that allows users to mow in reverse safely.

Overall, the Husqvarna LT120 combines power, efficiency, and comfort, making it a superb choice for residential lawn care. With its quality construction and thoughtful design features, it provides an exceptional mowing experience, helping homeowners achieve a well-maintained lawn with ease. Whether tackling small or medium-sized lawns, the LT120 ensures that lawn care is a task that can be handled with confidence and satisfaction.