Lawn-Boy EM21BMRB Lawn Mower Manual

The Lawn-Boy EM21BMRB is a reliable and efficient lawn mower designed for residential use. It features a powerful engine, adjustable cutting heights, and a lightweight design for easy maneuverability. This manual provides essential information on safety, features, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Information 3. Operation Instructions 4. Specifications 5. Maintenance 6. Troubleshooting

Features at a Glance

The Lawn-Boy EM21BMRB comes equipped with several features to enhance your mowing experience:

Powerful 149cc engine for efficient cutting.
21-inch cutting deck for a wide mowing path.
Adjustable cutting heights (1" to 4") for customized lawn care.
Lightweight design for easy handling and storage.
Easy-start recoil system for quick operation.

Safety Information

Before operating the mower, please read the following safety precautions:

Always wear appropriate footwear and eye protection.
Keep hands and feet away from the cutting blade.
Do not operate the mower in wet conditions.
Ensure the area is clear of debris before mowing.
Never bypass safety features or operate without guards.

Operation Instructions

To operate the Lawn-Boy EM21BMRB, follow these steps:

Check fuel and oil levels before starting.
Set the desired cutting height using the adjustment lever.
Start the engine using the recoil starter.
Begin mowing in a straight line, overlapping each pass.
Turn off the engine and allow it to cool before maintenance.

Specifications

Engine Type: 149cc 4-cycle OHV.
Cutting Width: 21 inches.
Cutting Heights: 1" to 4" adjustable.
Weight: Approximately 60 lbs.
Fuel Capacity: 1.6 quarts.
Oil Capacity: 0.5 quarts.
Warranty: 2 years limited warranty.

Maintenance

Regular maintenance is essential for optimal performance:

Change the oil every 25 hours of operation.
Clean or replace the air filter as needed.
Sharpen the blade at the beginning of each season.
Inspect the mower for loose or damaged parts regularly.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel or oil	Check fuel and oil levels; refill if necessary.
Uneven cutting	Dull blade	Sharpen or replace the blade.
Mower vibrates excessively	Loose parts	Inspect and tighten all screws and bolts.
Grass clippings not mulched	Clogged deck	Clean the mower deck and ensure proper airflow.