Husqvarna Troubleshooting Common Problems with YTH18542 Lawn Mower
Page 26

TROUBLESHOOTING POINTS

PROBLEM

CAUSE

CORRECTION

 

 

 

 

 

Engine dies when

1.

Reverse operation system

1.

Turn ignition key to

tractor is shifted

 

(ROS) is not "ON" while

 

ROS "ON" position.

into reverse

 

mower or other attachment

 

See Operation section.

 

 

is engaged.

 

 

 

 

 

 

 

Engine continues to run

1.

Faulty operator-safety presence control system.

1.

Check wiring, switches and connections. If not

when operator leaves seat

 

 

 

corrected, contact an authorized service center/

with attachment clutch

 

 

 

department.

engaged

 

 

 

 

 

 

 

 

 

Poor cut - uneven

1.

Worn, bent or loose blade.

1.

Replace blade. Tighten blade bolt.

 

2.

Mower deck not level.

2.

Level mower deck.

 

3.

Buildup of grass, leaves, and trash under mower.

3.

Clean underside of mower housing.

 

4.

Bent blade mandrel.

4.

Replace blade mandrel.

 

5.

Clogged mower deck vent holes from buildup of

5.

Clean around mandrels to open vent holes.

 

 

grass, leaves, and trash around mandrels.

 

 

 

 

 

 

 

Mower blades will not

1.

Obstruction in clutch mechanism.

1.

Remove obstruction.

rotate

2.

Worn/damaged mower drive belt.

2.

Replace mower drive belt.

 

3.

Frozen idler pulley.

3.

Replace idler pulley.

 

4.

Frozen blade mandrel.

4.

Replace blade mandrel.

 

 

 

 

 

Poor grass discharge

1.

Engine speed too slow.

1.

Place throttle control in “FAST” position.

 

2.

Travel speed too fast.

2.

Shift to slower speed.

 

3.

Wet grass.

3.

Allow grass to dry before mowing.

 

4.

Mower deck not level.

4.

Level mower deck.

 

5.

Low/uneven tire air pressure.

5.

Check tires for proper air pressure.

 

6.

Worn, bent or loose blade.

6.

Replace/sharpen blade. Tighten blade bolt.

 

7.

Buildup of grass, leaves and trash under mower.

7.

Clean underside of mower housing.

 

8.

Mower drive belt worn.

8.

Replace mower drive belt.

 

9.

Blades improperly installed.

9.

Reinstall blades sharp edge down.

 

10.

Improper blades used.

10.

Replace with blades listed in this manual.

 

11.

Clogged mower deck vent holes from buildup of

11.

Clean around mandrels to open vent holes.

 

 

grass, leaves, and trash around mandrels.

 

 

 

 

 

 

 

Headlight(s) not working

1.

Light switch is “OFF”.

1.

Turn light switch “ON”.

(if so equipped)

2.

Bulb(s) or lamp(s) burned out.

2.

Replace bulb(s) or lamp(s).

 

3.

Faulty light switch.

3.

Check/replace light switch.

 

4.

Loose or damaged wiring.

4.

Check wiring and connections.

 

5.

Blown fuse.

5.

Replace fuse.

 

 

 

 

 

Battery will not charge

1.

Bad battery cell(s).

1.

Replace battery.

 

2.

Poor cable connections.

2.

Check/clean all connections.

 

3.

Faulty regulator (if so equipped).

3.

Replace regulator.

 

4.

Faulty alternator.

4.

Replace alternator.

 

 

 

 

 

Loss of drive

1.

Freewheel control in “disengaged” position.

1.

Place freewheel control in “engaged” position.

 

2.

Motion drive belt worn, damaged, or broken.

2.

Replace motion drive belt.

 

3.

Air trapped in transmission during shipment

3.

Purge transmission.

 

 

or servicing.

 

 

 

 

 

 

 

Engine “backfires” when

1.

Engine throttle control not set between half and

1.

Move throttle control between half and full speed

turning engine “OFF”

 

full speed (fast) position before stopping engine.

 

(fast) position before stopping engine.

 

 

 

 

 

26

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Contents 917.279060 General Operation Safety RulesSafe Operation Practices for Ride-On Mowers II. Slope OperationIV. Towing ServiceIII. Children Table of Contents Seat Unassembled PartsSteering Wheel To Remove Tractor from Carton AssemblyTools Required for Assembly Before Removing Tractor from SkidCheck Battery See Fig Check for Proper Position of ALL Belts Check Tire PressureCheck Deck Levelness Check Brake SystemOperation Know Your Tractor HOW to USE Your Tractor Reverse Operation System ROS To Adjust Gauge Wheels See FigTo Operate Mower See Fig To Operate on HillsCheck Engine OIL Level Before Starting the EngineTo Transport See Figs ADD GasolineAutomatic Transmission Warm UP Mowing TipsPurge Transmission General Recommendations MaintenanceLubrication Chart Before Each USETo Sharpen Blade See Fig TractorBlade Removal See Fig Check Operator Presence SystemEngine Cleaning To Level Mower Housing Service and AdjustmentsTo Install Mower See Fig To Remove Mower See FigBelt Removal Belt InstallationTo Replace Mower Blade Drive Belt See Fig See Fig To Check and Adjust BrakeTransaxle Motion Control Lever Neutral Adjustment See Fig To Replace Motion Drive Belt See FigTo Start Engine with a Weak Battery See Fig Transmission REMOVAL/REPLACEMENTTo Adjust Steering Wheel ALIGN- Ment Front Wheel TOE-IN/CAMBERTo Adjust Carburetor To Adjust Throttle Control CableTo Adjust Choke Control To Replace Headlight BulbFuel System StorageOther Engine OILTroubleshooting Points Engine dies when Schematic TRACTOR-MODEL Number YTH18542 917.279060, Product no 13Electrical KEY Part NO. NO. Description Chassis TRACTOR-MODEL Number YTH18542 917.279060, Product no 13 Drive TRACTOR-MODEL Number YTH18542 917.279060, Product no 13 Steering Assembly TRACTOR-MODEL Number YTH18542 917.279060, Product no 13 Engine Optional EquipmentMower Lift 1331Seat Assembly Decals Wheels and TiresMower Deck TRACTOR-MODEL Number YTH18542 917.279060, Product no 13 Suggested Guide for Sighting Slopes for Safe Operation Only Ride UP and Down Hill Not Across Hill Degrees MAXWarranty Statement 532 19 58-63 Rev 3.18.05 RD
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YTH18542 specifications

The Husqvarna YTH18542 is a versatile and efficient lawn mower designed to meet the needs of homeowners looking for a reliable and high-performing machine for maintaining their lawns. Its robust design and advanced features make it a popular choice among gardening enthusiasts and professionals alike.

One of the standout features of the YTH18542 is its powerful 18.5 HP Briggs & Stratton engine. This engine provides ample power to tackle various lawn conditions, ensuring that grass cutting is smooth and efficient. The engine is designed for durability and ease of maintenance, allowing users to focus more on mowing and less on upkeep.

The YTH18542 is equipped with a 42-inch cutting deck that boasts a reinforced structure for added longevity. This cutting deck offers a variety of cutting heights, adjustable with a simple lever, which allows users to achieve their desired grass length easily. The wide cutting path minimizes mowing time while providing a clean, even cut.

In terms of comfort, the tractor features an ergonomic design with a comfortable seat, making longer mowing sessions less taxing. The easy-to-use steering wheel provides excellent maneuverability, allowing the operator to navigate tight corners and obstacles within the yard smoothly. Additionally, the implementation of a pedal-operated hydrostatic transmission ensures seamless speed control without the need for manual gear shifting.

Husqvarna's commitment to innovation is evident in the design of the YTH18542. The machine features a tight turning radius, which enhances agility and efficiency when working around flower beds, trees, and slopes. The mower also supports attachments, enabling users to expand its functionality with tools such as baggers or mulchers, making it a multi-season investment.

The mower includes safety features like an automatic blade engagement, which instantly starts the cutting blades only when the operator is seated. This promotes safety and reduces the risk of accidents.

Lastly, the YTH18542 possesses an aesthetically pleasing design, with a bright orange finish that is striking in any landscape. Its combination of performance, comfort, and safety features makes the Husqvarna YTH18542 a top choice for anyone seeking efficiency and quality in lawn care. With its dependable performance and innovative technologies, this mower is well-suited for various yard sizes and complexities.
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