MTD Yard Machines 279 Series Lawn Mower Manual

The MTD Yard Machines 279 Series is a reliable and efficient lawn mower designed for residential use. It features a powerful engine, adjustable cutting heights, and a durable deck for optimal performance. Below are key sections for safety, features, installation, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Maintenance 7. Troubleshooting

Features at a Glance

Key components: 21-inch cutting deck, 4-cycle engine, adjustable height settings, and easy-to-use controls.

Feature	Description
Cutting Deck	21-inch steel deck for durability and performance
Engine	Powerful 4-cycle engine for efficient mowing
Height Adjustment	5 adjustable cutting heights for customized grass length
Grass Bag	Large capacity grass bag for easy collection
Wheels	Front and rear wheels for smooth maneuverability

Installation

Unpack and inspect contents. Assemble the mower according to the instructions provided.

Attach the handle: Align and secure the handle to the mower body.
Check oil level: Ensure the engine oil is filled to the recommended level.
Fill fuel tank: Use fresh gasoline for optimal performance.
Inspect blades: Ensure blades are sharp and properly installed.

WARNING! Always wear safety gear when operating the mower.

First-Time Setup

Power on the mower and follow the initial setup instructions.

Set the desired cutting height using the adjustment lever.
Ensure the grass bag is securely attached.
Start the engine following the starting procedure.
Begin mowing in an open area to familiarize yourself with the controls.

CAUTION! Keep hands and feet away from the blades while starting.

Specifications

Engine Type: 4-cycle, gas-powered.
Cutting Width: 21 inches.
Cutting Heights: 5 adjustable settings (1.5 to 4 inches).
Grass Bag Capacity: 1.5 bushels.
Weight: Approximately 70 lbs.
Fuel Type: Unleaded gasoline.
Oil Capacity: 18 oz.

Controls and Settings

Access the mower controls for starting, stopping, and adjusting settings.

Throttle Control: Adjusts engine speed.

Height Adjustment Lever: Changes cutting height.

Start/Stop Switch: Powers the mower on and off.

Maintenance

Regular maintenance is essential for optimal performance.

Check oil level before each use.
Clean the cutting deck after mowing.
Sharpen blades at least once a season.
Inspect air filter and replace if necessary.

Tip: Store the mower in a dry place to prevent rust.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel or faulty spark plug	Check fuel level; replace spark plug if necessary.
Uneven cut	Blades dull or height settings incorrect	Sharpen blades; adjust cutting height.
Excessive vibration	Loose parts or damaged blades	Tighten loose parts; inspect blades for damage.
Grass clippings not bagging	Clogged chute or full bag	Clear chute; empty grass bag.

Service: For further assistance, contact MTD customer support.