Murray G4618000 Lawn Mower Manual

The Murray G4618000 is a 20-inch push lawn mower featuring a 4.5 HP Briggs & Stratton engine, 3-in-1 mulching/bagging/side discharge capability, single-lever height adjustment (1-3 inches), durable steel deck, easy-start system, and large rear wheels for enhanced maneuverability. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 4.5 HP Briggs & Stratton engine, 20-inch steel cutting deck, 3-in-1 functionality, single-lever height adjustment, rear-wheel drive, and foldable handle.

Assembly Instructions

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

1. Attach handle: Secure upper and lower handle sections with provided bolts.
2. Install wheels: Slide wheels onto axles and secure with retaining clips.
3. Attach grass bag: Hook bag onto rear deck brackets.
4. Install mulching plug: Insert plug into discharge chute for mulching mode.
5. Add oil and fuel: Fill engine with SAE 30 oil (20 oz) and unleaded gasoline.

WARNING! Always wear gloves during assembly. Ensure all bolts are tightened securely.

Safety Precautions

Read all instructions before operation. Always wear appropriate safety gear.

1. Clear mowing area of debris, rocks, and toys before starting.
2. Never operate without proper guards or discharge chute in place.
3. Keep hands and feet away from rotating blades.
4. Do not mow on steep slopes or wet grass.
5. Always stop engine and disconnect spark plug before maintenance.

CAUTION! Gasoline is flammable. Refuel outdoors only when engine is cool.

Specifications

• Model: Murray G4618000
• Engine: 4.5 HP Briggs & Stratton, 4-cycle
• Cutting Width: 20 inches
• Cutting Height Range: 1 to 3 inches (6 positions)
• Deck Material: Powder-coated steel
• Wheels: 8-inch rear, 7-inch front
• Discharge Options: Mulch, bag, side discharge
• Fuel Capacity: 0.5 gallons
• Oil Capacity: 20 oz SAE 30
• Weight: 55 lbs (approx.)

Controls and Operation

Handle-mounted controls for easy operation.

Starting: Prime engine (3-5 presses), set throttle to FAST, pull recoil starter firmly.

Stopping: Release drive control, move throttle to STOP, wait for blades to stop.

Drive Control: Lever on handle engages self-propelled drive.

Blade Control: Deadman lever must be held for blades to rotate.

Throttle: Controls engine speed (FAST for mowing, SLOW for idling).

Cutting Height Adjustment

Single-lever adjustment for all four wheels.

1. Stop engine and wait for blades to stop.
2. Pull height adjustment lever outward.
3. Move lever to desired setting (1-6, corresponding to 1-3 inches).
4. Release lever to lock position.
5. Check all wheels are at same height.

Tip: For first mow of season, set to highest setting to avoid scalping.

Mulching & Bagging

3-in-1 functionality for versatile grass management.

1. Mulching: Install mulching plug. Cuts clippings finely and returns to lawn.
2. Bagging: Attach grass bag. Collects clippings for disposal.
3. Side Discharge: Remove plug and bag. Discharges clippings to side.

WARNING! Always stop engine before changing discharge mode.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

CAUTION! Always disconnect spark plug before performing maintenance.

Storage Guidelines

Proper storage prevents damage and extends mower life.

1. Drain fuel or add fuel stabilizer for long-term storage.
2. Clean underside of deck thoroughly.
3. Change oil at end of season.
4. Store in dry, covered area.
5. Fold handle for compact storage.

Tip: Run engine dry of fuel if using stabilizer is not possible.

Warranty Information

Murray G4618000 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 claims, 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