MTD 138-748-000 Lawn Mower Manual

The MTD 138-748-000 is a reliable lawn mower designed for efficient grass cutting and maintenance. It features a powerful engine, adjustable cutting heights, and a durable build to withstand various lawn conditions. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operating the Mower 8. Maintenance 9. Safety Information 10. Troubleshooting

Features at a Glance

Key components: Powerful engine, adjustable cutting height, ergonomic handle, and durable wheels.

Feature	Description
Engine	Powerful engine for efficient cutting
Cutting Height Adjustment	Multiple settings for desired grass length
Ergonomic Handle	Comfortable grip for ease of use
Durable Wheels	Designed for smooth maneuverability
Grass Bag	Collects clippings for easy disposal

Installation

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

Attach the handle: Align and secure with provided bolts.
Install the grass bag: Ensure it is properly attached.
Check oil and fuel levels before starting.
Read the manual for safety precautions.

WARNING! Ensure all parts are securely fastened before operation.

First-Time Setup

Prepare the mower for first use by following these steps.

Fill the fuel tank with the recommended fuel type.
Add oil to the engine as per specifications.
Check all connections and ensure the mower is ready for operation.
Review safety features and controls before starting.

CAUTION! Always wear appropriate safety gear when operating the mower.

Specifications

Engine Type: 4-stroke gasoline engine.
Cutting Width: 21 inches.
Cutting Heights: Adjustable from 1 to 4 inches.
Weight: Approximately 60 lbs.
Fuel Capacity: 1.5 gallons.
Oil Capacity: 0.5 quarts.
Warranty: 2 years limited warranty.

Controls and Settings

Access controls for starting, stopping, and adjusting cutting height.

Handle Controls: Throttle, start/stop switch, and height adjustment lever.

Ensure you are familiar with all controls before operating the mower.

Connecting Devices

Ensure all connections are secure before starting the mower.

Check fuel and oil connections.
Ensure the grass bag is properly attached.
Verify that the throttle is in the correct position.

Tip: Always perform a pre-operation check before mowing.

Operating the Mower

Follow these steps to operate the mower safely and effectively.

Start the engine: Pull the starter cord firmly.
Adjust the throttle for desired speed.
Begin mowing by pushing the mower forward.
Adjust cutting height as needed during operation.
Stop the mower by releasing the throttle.

WARNING! Do not operate the mower on wet grass to avoid slipping.

Maintenance

Regular maintenance is essential for optimal performance.

Check oil level before each use.
Clean the air filter regularly.
Sharpen the blades at least once a season.
Inspect the mower for any loose parts or damage.

CAUTION! Always disconnect the spark plug before performing maintenance.

Safety Information

Read all safety information before operating the mower.

Wear appropriate footwear and eye protection.
Keep children and pets away from the mowing area.
Do not operate the mower in adverse weather conditions.
Follow all maintenance guidelines to ensure safety.

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 blades	Sharpen or replace blades.
Excessive vibration	Loose parts	Tighten all screws and bolts.
Grass clippings not collected	Clogged grass bag	Empty and clean the grass bag.

Reset: Refer to the manual for reset instructions if applicable.

Service: Contact MTD customer service for further assistance.