Murray 387002x92A Lawn Mower Manual

The Murray 387002x92A is a walk-behind, self-propelled gasoline lawn mower featuring a Briggs & Stratton engine, 21-inch cutting deck, 3-in-1 mulching/bagging/side-discharge capability, adjustable cutting heights, single-lever height adjustment, rear-wheel drive, and easy-start technology. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Briggs & Stratton engine, 21-inch steel cutting deck, rear bagger, mulch plug, side discharge chute, height adjustment lever, drive control bar, and recoil starter.

Assembly Instructions

Unpack and inspect all parts. Assembly requires basic tools (included).

1. Attach handle: Align lower handle with deck brackets, secure with bolts and wing nuts.
2. Install upper handle: Connect to lower handle, tighten knobs.
3. Attach grass bag: Hook bag frame onto rear deck brackets, ensure secure fit.
4. Install mulch plug (if mulching): Insert into rear discharge opening.
5. Install side discharge chute (if side discharging): Attach to deck opening.
6. Add engine oil: Fill with SAE 30 detergent oil (check dipstick).
7. Add gasoline: Use fresh unleaded gasoline (87 octane or higher).

WARNING! Always wear gloves during assembly. Ensure all fasteners are tight before operation.

First-Time Setup

Before first use, complete pre-operation checks.

1. Check oil level: Ensure oil is at full mark on dipstick.
2. Check fuel: Fill tank with fresh unleaded gasoline.
3. Adjust cutting height: Set lever to desired position (middle setting recommended for first mow).
4. Inspect blade: Ensure blade is sharp and securely fastened.
5. Test start: Pull recoil starter slowly until resistance is felt, then pull briskly.
6. Test drive: Engage drive control bar and walk behind mower to test self-propulsion.

CAUTION! Never add fuel while engine is hot. Allow engine to cool for at least 5 minutes.

Specifications

• Model: Murray 387002x92A
• Engine: Briggs & Stratton 140cc, 4-cycle OHV
• Cutting Width: 21 inches
• Cutting Height Range: 1.5" to 3.75" (6 positions)
• Drive: Self-propelled rear-wheel drive
• Speed Control: Variable speed via drive control bar
• Discharge Options: Mulch, Bag, Side Discharge
• Bag Capacity: 2.0 bushels
• Fuel Capacity: 0.95 gallons
• Oil Capacity: 20 oz (SAE 30)
• Wheel Size: 8-inch rear, 7-inch front
• Weight: 65 lbs (approx.)

Controls and Operation

Main controls located on handle. Front of deck: Height adjustment lever.

Handle Controls: Drive control bar (squeeze to engage drive), Recoil starter handle, Engine stop lever (must be held to run).

Starting Procedure: 1. Check oil and fuel. 2. Move engine stop lever to RUN position. 3. Prime engine (3-5 presses). 4. Set throttle to FAST. 5. Pull recoil starter briskly. Stopping: Release drive control bar, move engine stop lever to STOP. Height Adjustment: Move single lever to desired position (1=lowest, 6=highest). Drive Control: Squeeze bar to engage self-propulsion; release to stop drive.

Cutting & Discharge Options

Configure for mulching, bagging, or side discharge.

1. Mulching: Install mulch plug in rear discharge opening. Grass is cut finely and returned to lawn.
2. Bagging: Attach grass bag to rear brackets. Collects clippings for disposal.
3. Side Discharge: Install side discharge chute. Ejects clippings to side (right).

Tip: For best mulching results, mow when grass is dry and don't cut more than 1/3 of grass height.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

1. Before each use: Check oil level, inspect blade for damage, clear deck of debris.
2. Every 25 hours: Change engine oil (or annually).
3. Every season: Replace air filter, spark plug.
4. As needed: Sharpen or replace blade (balance after sharpening).
5. Storage: Drain fuel or add stabilizer for off-season storage.

WARNING! Always disconnect spark plug wire before performing maintenance. Allow engine to cool completely.

Storage Instructions

Proper storage prevents fuel system issues and corrosion.

1. Clean mower thoroughly, removing all grass and debris.
2. Drain fuel tank or add fuel stabilizer and run engine for 5 minutes.
3. Change oil if due.
4. Remove spark plug, add 1 tablespoon of oil to cylinder, pull starter slowly to distribute, reinstall plug.
5. Store in dry, covered area away from moisture and direct sunlight.

CAUTION! Never store mower with fuel in tank indoors or in enclosed spaces without proper ventilation.

Safety Information

Read and understand all safety instructions before operation.

• Wear sturdy shoes, eye protection, and long pants.
• Clear mowing area of stones, sticks, and debris.
• Never mow wet grass.
• Keep children and pets away from mowing area.
• Stop engine before unclogging deck or adjusting height.
• Never remove grass bag or unclog chute while engine is running.
• Use extreme caution when mowing on slopes.

DANGER! Blade rotates at high speed. Keep hands and feet away from cutting deck at all times.

Warranty & Support

Murray 387002x92A comes with 2-year limited warranty covering defects in materials and workmanship. Warranty does not cover normal wear, misuse, or lack of maintenance. For warranty service, contact authorized service center with proof of purchase. For technical support, visit www.murray.com or call 1-800-800-7310.

Troubleshooting

Service: For repairs beyond basic maintenance, contact authorized Murray service center.

Support: 1-800-800-7310; www.murray.com