MTD 549 manual Troubleshooting, Replacing Rear Flap, Storing Your Lawn Mower

Page 13

Sharpening the Blade

•The blade can be sharpened with a file or on a grinding wheel. Do not attempt to sharpen the blade while it is still on the mower.

•Follow the original angle of grind as a guide. Make sure that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade.

WARNING: An unbalanced blade will cause excessive vibration when rotating at high speeds. It may cause damage to the mower, and could break causing personal injury.

Balancing the Blade

•The blade can be tested by balancing it on a round shaft screwdriver. Remove metal from the heavy side until it balances evenly. It is recommended that the blade always be removed from the adapter when testing for balance.

Installing the Blade

•Before reinstalling the blade and the blade adapter to the unit, lubricate the engine crankshaft and the inner surface of the blade adapter with light oil.

•Be sure to install the blade with the side of the blade marked “Bottom” (or with part number) facing the ground when the mower is in the operating position.

•Slide the blade adapter onto the engine crankshaft.

•Place the blade on the adapter. Be certain the blade is aligned and seated on the blade adapter flanges.

•Place blade bell support on blade. Make sure the notches on the blade bell support are aligned with small holes in the blade.

•Replace hex bolt and tighten hex bolt to torque: 450 in. lbs. min., 600 in. lbs. max.

NOTE: To ensure safe operation of your mower, periodically check the blade bolt for correct torque.

Replacing Rear Flap

•To remove rear flap, cut off the flat end of the wire rod which secures it to the deck.

•Attach the new flap and new rod to deck, bending the ends of the new rod over to secure to deck.

Storing Your Lawn Mower

The following steps should be taken to prepare your lawn mower for storage.

•Clean and lubricate mower thoroughly as described in the lubrication instructions.

•Refer to engine manual for correct engine storage instructions.

•Coat mower’s cutting blade with chassis grease to prevent rusting.

•Store mower in a dry, clean area. Do not store next to corrosive materials, such as fertilizer.

SECTION 9: TROUBLESHOOTING

Problem

 

Cause

 

Remedy

 

 

 

 

 

Engine fails to start

1.

Blade control handle disengaged.

1.

Engage blade control handle.

 

2.

Spark plug wire disconnected.

2.

Connect wire to spark plug.

 

3.

Fuel tank empty or stale fuel.

3.

Fill tank with clean, fresh gasoline.

 

4.

Blocked fuel line.

4.

Clean fuel line.

 

5.

Faulty spark plug.

5.

Clean, adjust gap, or replace.

 

6.

Engine flooded

6.

Wait a few minutes to restart, do not prime.

 

 

 

 

 

Engine runs erratic

1.

Spark plug wire loose.

1.

Connect and tighten spark plug wire.

 

2.

Blocked fuel line or stale fuel.

2.

Clean fuel line; fill tank with fresh gasoline

 

3.

Vent in gas plugged.

3.

Clear vent.

 

4.

Water or dirt in fuel system.

4.

Drain fuel tank. Refill with fresh fuel.

 

5.

Dirty air cleaner.

5.

Clean air cleaner.

 

6.

Carburetor out of adjustment.

6.

Adjust carburetor.

 

 

 

 

 

Engine overheats

1.

Engine oil level low.

1.

Fill crankcase with proper oil.

 

2.

Air flow restricted.

2.

Remove blower housing and clean.

 

3.

Carburetor not adjusted properly.

3.

Adjust carburetor.

 

 

 

 

 

Excessive vibration

1.

Cutting blade loose or unbalanced.

1.

Tighten blade and adapter. Balance blade.

 

2.

Bent cutting blade.

2.

Replace blade.

 

 

 

 

 

Mower will not mulch grass

1.

Wet grass.

1.

Do not mow when grass is wet; wait until

 

 

 

 

later to cut.

 

2.

Excessively high grass.

2.

Mow once at a high cutting height, then mow

 

 

 

 

again at desired height.

 

3.

Dull blade.

3.

Sharpen or replace blade.

 

 

 

 

 

Uneven cut

1.

Wheels not positioned correctly.

1.

Place all four wheels in same position.

 

2.

Dull blade.

2.

Sharpen or replace blade.

 

 

 

 

 

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Contents MTD LLC, P.O. BOX 361131 CLEVELAND, Ohio Operator’s ManualTable of Contents General Operation Important Safe Operation PracticesChildren ServiceSlope Operation Do NotYour Responsibility General ServiceSlope Gauge Assembling Your Lawn Mower Setting Up Your Lawn MowerRemoving Unit From Carton Hardware PackAssembling Grass Catcher Attaching Starter RopeAttaching Grass Catcher & Chute Know Your Lawn Mower Using Mulch PlugAttaching Side-Discharge Chute Gas & Oil Fill-Up Operating Your Lawn MowerBefore Starting Mower Starting EngineHandle Height Adjustment Using Your Lawn MowerCutting Height Adjustment Stopping EngineServicing the Mower Maintaining Your Lawn MowerReplacing Rear Flap TroubleshootingStoring Your Lawn Mower Parts List for Series Part Description SeriesMANUFACTURER’S Limited Warranty for Manual del operador Índice ÍndiceFuncionamiento general Sección 1 Medidas Importantes DE SeguridadNiños Funcionamiento en pendientesServicio Servicio general Su responsabilidadSección 2 Medidor DE Pendientes Sección 3 Ensamblado DE LA Podadora Configuración de la podadoraExtracción de la unidad de la caja Piezas sueltas dentro de la cajaMontaje de la tolva para recorte de césped Unión de la cuerda de arranqueConexión de la tolva para recortes y del canal Unión de la tolva de descarga lateral Sección 4 Conozca LA Podadora DE CéspedUso del adaptador de abonadora Sección 5 Operación DE LA Podadora Sección 7 Mantenimiento DE LA Podadora Sección 6 Realización DE AjustesLubricación Sección 8 Servicio a LA PodadoraCuidados para el motor Cuidado de la cuchillaProblema Causa Remedio Sección 9 Solución DE ProblemasReemplazo de alerón trasero Almacenamiento de la podadoraSección 10 Lista DE Piezas Para LA Serie No. de pieza Descripción de pieza SerieGarantía Limitada DEL Fabricante Para

549 specifications

The MTD 549 is a versatile and high-performance machine that stands out in its category for its robust features and advanced technologies. Designed primarily for professional landscapers and homeowners, the MTD 549 is ideal for tackling a variety of outdoor tasks, such as mowing, mulching, and yard cleanup.

One of the main features of the MTD 549 is its powerful engine. Equipped with a reliable Briggs & Stratton engine, it delivers exceptional cutting performance and efficiency. The engine is designed to provide ample torque, ensuring that the mower can handle thick grass and tough terrains without compromising on performance. This makes the MTD 549 suitable for both small and large lawns, adapting seamlessly to different conditions.

The cutting deck of the MTD 549 is another notable characteristic. With a generous 21-inch cutting width, it allows for efficient mowing in fewer passes, saving time and effort. The adjustable cutting height feature offers flexibility, enabling users to choose from multiple height settings to achieve their desired grass length. This adaptability is especially important for maintaining a healthy lawn, as different grasses require different cutting heights.

Additionally, the MTD 549 incorporates innovative technologies to enhance user experience and safety. The mower features a simple pull-start mechanism that ensures quick and easy engine ignition. For added safety, the machine is equipped with a safety key that prevents accidental starts, protecting users and their surroundings.

Comfort and ease of use are also prioritized in the design of the MTD 549. The ergonomic handle is adjustable, allowing users of varying heights to find a comfortable grip. This is crucial for reducing fatigue during longer mowing sessions. The mower's lightweight construction further enhances maneuverability, making it easy to navigate tight corners and uneven landscapes.

Maintenance is made simpler with the MTD 549, thanks to its easy-access air filter and spark plug, which allows for quick inspections and replacements. The durable construction materials used in the mower enhance its longevity, ensuring that it remains a reliable tool for years to come.

In conclusion, the MTD 549 is a powerful, efficient, and user-friendly mower equipped with advanced features and technologies. Its strong engine, adjustable cutting deck, emphasis on safety, and ergonomic design make it an excellent choice for anyone looking to maintain a pristine lawn with minimal effort. Whether for home use or professional landscaping, the MTD 549 is a robust solution for diverse mowing needs.
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