Murray 42514x8A Lawn Mower Manual

The Murray 42514x8A is a 21-inch push lawn mower featuring a 140cc Briggs & Stratton engine, 3-in-1 mulching/bagging/side discharge capability, single-lever height adjustment, durable steel deck, and easy-fold handle for storage. This manual covers safety, assembly, operation, maintenance, troubleshooting, and specifications to ensure proper and safe use.

Features at a Glance

Key components: 140cc Briggs & Stratton engine, 21-inch steel cutting deck, rear bagger, mulch plug, side discharge chute, single-lever height adjuster, fold-down handle.

Assembly Instructions

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

1. Attach the handle: Align lower handle sections with deck brackets, secure with provided bolts and wing nuts.
2. Install the upper handle: Connect to lower handle using bolts; ensure height is comfortable.
3. Attach the grass bag: Hook bag frame onto rear deck brackets; ensure bag is securely attached.
4. Install the side discharge chute: If using side discharge, attach chute to deck opening.
5. Insert the mulch plug: For mulching, place plug into rear discharge opening.
6. Check wheel installation: Ensure all wheels are properly secured with washers and retaining clips.
7. Add oil and fuel: Refer to engine manual for correct oil type; fill with fresh unleaded gasoline.

WARNING! Do not add fuel indoors or near ignition sources. Ensure all fasteners are tight before operation.

Safety Information

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

1. Clear mowing area of stones, toys, and debris that could be thrown by the blade.
2. Never mow wet grass; ensure firm footing to avoid slipping.
3. Do not allow children or pets in the area during mowing.
4. Always turn off engine and disconnect spark plug wire before performing any maintenance or clearing blockages.
5. Use hearing and eye protection during operation.
6. Never operate mower without proper guards, bag, or discharge chute in place.
7. Do not tip mower on its side while engine is running or hot.

CAUTION! Gasoline is flammable. Store fuel in approved container away from heat and sparks.

Specifications

• Model: Murray 42514x8A
• Engine: Briggs & Stratton 450E series, 140cc, 4-cycle
• Cutting Width: 21 inches
• Cutting Height Range: 1.5 - 3.75 inches (6 positions)
• Deck Material: Steel
• Wheels: 8-inch rear, 7-inch front
• Fuel Type: Unleaded gasoline (87 octane or higher)
• Fuel Capacity: 0.95 quart (0.9 liter)
• Oil Type: SAE 30 detergent (above 40°F/4°C) (check engine manual)
• Weight: Approximately 65 lbs (29.5 kg)
• Warranty: 2-year limited (see warranty section)

Controls and Operation

Primary controls: Engine throttle, recoil starter, blade control lever, height adjustment lever.

Starting Procedure:

1. Check oil and fuel levels.
2. Move throttle control to FAST position.
3. Prime engine (if equipped) by pressing primer bulb 3 times.
4. Hold blade control lever against handle (safety feature).
5. Pull recoil starter cord briskly until engine starts.

Stopping Procedure:

1. Release blade control lever to stop blade rotation.
2. Move throttle to STOP position.
3. Disconnect spark plug wire for safety during maintenance.

Operating Tips: Mow at steady pace; overlap passes slightly for even cut; avoid mowing in reverse.

Cutting Height Adjustment

Single-lever adjustment for all four wheels simultaneously.

1. Stop engine and ensure blade has stopped completely.
2. Pull height adjustment lever toward wheel.
3. Move lever to desired height setting (1-6, with 1 being lowest).
4. Release lever to lock into position.
5. Check that all wheels are at same height before mowing.

Recommended Heights: 2.5-3 inches for most grasses; higher in hot/dry conditions; lower for final fall mowing.

3-in-1 Function Setup

Configure for mulching, bagging, or side discharge.

1. Mulching: Install mulch plug completely into rear discharge opening. Grass clippings are cut finely and returned to lawn as fertilizer.
2. Bagging: Remove mulch plug. Attach grass bag to rear brackets. Empty bag frequently to maintain airflow and cutting performance.
3. Side Discharge: Remove mulch plug and bag. Install side discharge chute. Direct clippings away from people, buildings, and roads.

Note: Always use appropriate attachment for desired function. Never operate without either bag, mulch plug, or discharge chute properly installed.

Maintenance Schedule

Blade Sharpening: Always balance blade after sharpening. Wear gloves when handling sharp blade.

Storage & Winterization

Proper storage extends mower life.

1. Run engine to burn remaining fuel in carburetor, or add fuel stabilizer to fresh gas and run for 5 minutes.
2. Change oil while engine is warm.
3. Remove spark plug and add 1 tablespoon of oil into cylinder; pull starter cord slowly to distribute; reinstall plug.
4. Clean entire mower, especially underside of deck.
5. Sharpen blade and check for damage.
6. Store in dry, covered area away from moisture and direct sunlight.
7. Cover mower to prevent dust accumulation.

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

Warranty Information

Murray 42514x8A comes with a 2-year limited warranty covering defects in materials and workmanship under normal residential use. Warranty does not cover damage from misuse, neglect, commercial use, improper maintenance, or normal wear items (blades, belts, etc.). Keep original receipt as proof of purchase. For warranty service, contact Murray customer service at 1-800-269-6215 or visit www.murray.com. Have model and serial numbers ready (located on engine housing).

Troubleshooting

For Technical Support: 1-800-269-6215, Monday-Friday 8am-8pm EST.

Parts & Manuals: www.murray.com/parts