MTD 131-390A Lawn Mower Manual

The MTD 131-390A is a reliable lawn mower designed for efficient grass cutting. 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, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. Operation 4. Specifications 5. Maintenance 6. Troubleshooting

Features at a Glance

Key components: 21-inch cutting deck, adjustable height settings, ergonomic handle, and easy-start engine.

Feature	Description
Cutting Deck	21-inch wide for efficient cutting
Height Adjustment	6 height settings for customized cutting
Engine	Powerful 140cc engine for reliable performance
Ergonomic Handle	Comfortable grip for ease of use
Grass Bag	Large capacity for less frequent emptying

Installation

Unpack and inspect the mower. Assemble the handle and attach the grass bag.

Attach the handle: Align and secure with provided bolts.
Install the grass bag: Hook onto the rear of the mower.
Check oil level: Ensure proper oil is filled before starting.
Fill with fuel: Use fresh gasoline for optimal performance.

WARNING! Always read the manual before operating the mower.

Operation

Start the mower and adjust the cutting height as needed.

Start the engine: Pull the starter cord firmly.
Adjust cutting height: Use the lever to set desired height.
Begin mowing: Move the mower forward steadily.
Stop the engine: Release the handle to turn off the mower.

CAUTION! Keep hands and feet away from the cutting deck while in operation.

Specifications

Engine: 140cc, 4-stroke.
Cutting Width: 21 inches.
Height Adjustment: 6 positions (1.5 to 4 inches).
Weight: 60 lbs.
Grass Bag Capacity: 1.5 bushels.
Fuel Type: Unleaded gasoline.
Oil Type: SAE 30 or 10W-30.

Maintenance

Regular maintenance ensures optimal performance and longevity.

Check oil level regularly and change every 50 hours.
Clean the cutting deck after each use.
Inspect and replace the air filter as needed.
Sharpen the blades at least once a season.

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 bolts and screws.
Grass clippings not bagging	Clogged chute	Clear any debris from the chute.

Service: For further assistance, contact MTD customer support.