Murray 7800201 Lawn Mower Manual

The Murray 7800201 is a 20-inch push lawn mower featuring a 3.5 HP Briggs & Stratton engine, single-speed operation, rear bagging system, 3-in-1 cutting capabilities (mulch, bag, side discharge), adjustable cutting height, and easy-start technology. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 3.5 HP Briggs & Stratton engine, 20-inch steel deck, rear grass bag, height adjustment lever, mulching plug, side discharge chute.

Assembly Instructions

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

1. Attach handle: Align handle with deck brackets, secure with provided bolts and washers.
2. Install wheels: Insert axle through deck brackets, secure wheels with retaining clips.
3. Attach grass bag: Hook bag frame onto rear deck brackets, ensure secure fit.
4. Install mulching plug: Insert plug into rear discharge opening when mulching.
5. Add oil and fuel: Fill engine with SAE 30 oil (18 oz), add unleaded gasoline.

WARNING! Do not add fuel indoors or near open flames. Ensure all bolts are tightened securely.

First-Time Setup

Complete assembly, then prepare for first use.

1. Check oil level: Ensure oil is at full mark on dipstick.
2. Add fuel: Use fresh unleaded gasoline with minimum 87 octane.
3. Adjust cutting height: Set lever to desired position (middle setting recommended).
4. Select cutting mode: Install bag, mulching plug, or attach side discharge chute.
5. Start engine: Pull starter cord firmly while holding safety handle.

CAUTION! Always operate outdoors in well-ventilated area. Keep hands and feet away from cutting blade.

Specifications

• Model: Murray 7800201
• Engine: 3.5 HP Briggs & Stratton 4-cycle
• Cutting Width: 20 inches
• Cutting Height Range: 1.5" to 3.75" (6 positions)
• Deck Material: Powder-coated steel
• Wheels: 8" rear, 7" front
• Bag Capacity: 1.8 bushels
• Weight: 55 lbs (approx.)
• Fuel Type: Unleaded gasoline (87 octane minimum)
• Oil Type: SAE 30 (18 oz capacity)

Controls and Operation

Main controls: Safety handle, throttle control, starter cord, height adjustment lever.

Starting Procedure:

1. Check oil and fuel levels.
2. Move throttle control to FAST position.
3. Press primer bulb 3 times (cold engine).
4. Hold safety handle against handlebar.
5. Pull starter cord firmly until engine starts.

Stopping: Release safety handle to stop engine and blade. Move throttle to STOP position.

Operating Tips: Mow when grass is dry. Overlap passes by 2-3 inches. Empty bag when ¾ full.

Cutting Height Adjustment

Adjust height before mowing, with engine off.

1. Locate adjustment lever on each wheel.
2. Pull lever outward to release from notch.
3. Move wheel to desired height position (1-6).
4. Release lever to lock in notch.
5. Repeat for all four wheels to ensure level cut.

Height Settings: 1 (1.5"), 2 (2"), 3 (2.5"), 4 (2.75"), 5 (3.25"), 6 (3.75")

Tip: For first mow of season, use highest setting. Never remove more than 1/3 of grass height at once.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Blade Sharpening: Disconnect spark plug wire. Remove blade, sharpen at 30° angle, balance before reinstalling.

Storage Guidelines

Proper storage prevents fuel system issues and corrosion.

1. Drain fuel or add fuel stabilizer.
2. Run engine until it stops to clear carburetor.
3. Change oil if due.
4. Clean entire mower, especially under deck.
5. Store in dry, covered area.
6. Remove spark plug, add 1 tablespoon oil to cylinder, pull starter slowly to coat.

CAUTION! Never store with fuel in tank indoors. Gasoline vapors are explosive.

Safety Information

Always follow safety precautions to prevent injury.

• Read manual completely before operation.
• Clear mowing area of stones, sticks, and debris.
• Wear sturdy shoes, eye protection, and long pants.
• Never mow wet grass.
• Never remove grass bag or unclog chute with engine running.
• Keep children and pets away from mowing area.
• Disconnect spark plug wire before performing maintenance.
• Use extreme caution when mowing on slopes.

WARNING! Rotating blade can cause severe injury. Always ensure all safety devices are functioning.

Warranty Information

Murray 7800201 comes with a 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 Murray customer service at 1-800-800-7310 or visit www.murray.com. Keep original receipt as proof of purchase.

Troubleshooting

Service: For technical support, call 1-800-800-7310 or visit www.murray.com