Husqvarna LTH1742 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.

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.

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.

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

Image 25
Contents LTH1742 Safe Operation Practices for Ride-On Mowers IV. ServiceGeneral Operation II. Slope OperationSafety Rules Table of Contents Steering Wheel Seat Unassembled PartsKey Slope SheetTools Required for Assembly AssemblyTo Remove Tractor from CAR- TON Before Removing Tractor from SkidInstall Seat See Fig HOW to SET UP Your TractorCheck Battery See Fig Check 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 Mower See Fig Before Starting the EngineTo Operate on Hills To Transport See FigsTo Start Engine See Fig ADD GasolinePurge Transmission Automatic Transmission Warm UPMulching Mowing Tips Mowing TipsLubrication Chart MaintenanceService Dates General RecommendationsTractor Engine Clean AIR INTAKE/COOLING Areas CleaningMuffler Spark PlugsTo Install Mower See Fig Service and AdjustmentsTo Level Mower Housing To Remove Mower See FigTo Replace Mower Blade Drive Belt See Fig Belt InstallationBelt Removal To Adjust Brake Transaxle Motion Control Lever Neutral Adjustment See FigTo Replace Motion Drive Belt See Fig To Check BrakeTo Adjust Steering Wheel ALIGN- Ment Transmission REMOVAL/REPLACEMENTReplacing Battery See Figs Front Wheel TOE-IN/CAMBERTo Replace Headlight Bulb To Adjust CarburetorInterlocks and Relays To Replace FuseOther StorageFuel System Engine OILTroubleshooting Points OFF Tractor - Model NO. LTH1742 LTH1742A, Product no 57 SchematicElectrical KEY Part Description Chassis and Enclosures 532 17 46-19 Chassis Stamping Drive CRD Steering Assembly Repair Parts 532 14 Seat Seat AssemblyWheels & Tires DecalsEngine Repair Parts Mower Deck Repair Parts Mower Lift Repair Parts Service Notes Service Notes Warranty Statement Only Ride UP and Down Hill Not Across Hill Degrees MAX Suggested Guide for Sighting Slopes for Safe Operation532 18 44-93 11.20.02 RH

LTH1742 specifications

The Husqvarna LTH1742 is a standout in the realm of riding lawn mowers, designed to deliver both performance and comfort for homeowners managing medium to large lawns. With its robust build and user-friendly features, it ensures a seamless mowing experience that meets the demands of any yard.

One of the key features of the LTH1742 is its powerful engine. Equipped with a 17-horsepower Briggs and Stratton engine, this mower provides ample power to handle tough grass and uneven terrain. The reliable four-stroke engine ensures efficient fuel consumption while producing the necessary torque for effective cutting even in challenging conditions.

The 42-inch cutting deck is another significant characteristic of the Husqvarna LTH1742. Its size strikes a balance between maneuverability and mowing efficiency, allowing users to cover a wider area in less time. The deck features a robust steel construction for durability, and the cutting height can be easily adjusted from 1 to 4 inches using a convenient lever, catering to various grass types and user preferences.

To enhance the mowing experience, the LTH1742 incorporates hydrostatic transmission. This technology provides the operator with smooth and precise control over speed and direction, allowing for effortless navigation around obstacles and tight corners. The automatic drive system eliminates the need for gear shifting, making it accessible for users of all experience levels.

Comfort is also a focal point of the Husqvarna LTH1742. It comes equipped with an ergonomic seat that offers ample support, ensuring that users can mow for extended periods without discomfort. The easy-to-reach controls and intuitive dashboard further enhance user experience, allowing for quick adjustments without needing to divert attention from the mowing process.

Another notable feature includes the ease of maintenance. The mower is designed with a washout port that makes cleaning the cutting deck a straightforward task, prolonging the equipment's lifespan and maintaining optimal performance. Additionally, the LTH1742 offers a variety of accessories, enabling users to customize their mower for different tasks, such as mulching or bagging.

In summary, the Husqvarna LTH1742 combines power, efficiency, and user-friendly features, making it an excellent choice for homeowners looking to maintain their lawns with ease. Its powerful engine, adjustable cutting deck, hydrostatic transmission, and attention to operator comfort solidify its place as a reliable and effective lawn care solution.