Murray 425306x48A Lawn Mower Manual

The Murray 425306x48A is a 42-inch riding lawn mower with a 30 HP Briggs & Stratton engine, 6-speed manual transmission, 3-in-1 cutting system (mulch, bag, side discharge), electric start, adjustable cutting height (1.5-4 inches), 2.5-gallon fuel tank, and ergonomic high-back seat. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Assembly Instructions 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Operating the Mower 7. Cutting System Options 8. Safety Features 9. Maintenance Schedule 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: 30 HP Briggs & Stratton engine, 42-inch cutting deck, 6-speed transmission, electric start, adjustable seat, 3-in-1 cutting system.

Feature	Description
Engine	30 HP Briggs & Stratton, single-cylinder, overhead valve
Cutting Width	42 inches
Transmission	6-speed manual gear drive
Starting System	Electric start with key ignition
Cutting Height	Adjustable 1.5 to 4 inches (6 positions)
Fuel Tank	2.5-gallon capacity
Cutting System	3-in-1 (mulch, bag, side discharge)
Seat	Ergonomic high-back, adjustable
Deck Material	12-gauge steel construction
Wheels	Front: 13-inch, Rear: 20-inch

Assembly Instructions

Unpack and inspect all parts. Assembly requires basic tools.

Install steering wheel: Align and tighten with provided bolt.
Attach seat: Mount on frame using four bolts.
Install cutting deck: Align with mounting points and secure with pins.
Connect battery: Attach positive then negative terminals.
Add engine oil and fuel: Use SAE 30 oil and unleaded gasoline.

WARNING! Mower is heavy; use assistance. Ensure all bolts are tightened securely.

First-Time Setup

Complete assembly, then prepare for first use.

Check oil level: Dipstick should show full.
Fill fuel tank: Use fresh unleaded gasoline.
Adjust cutting height: Set lever to desired position.
Test electric start: Turn key to start position.
Engage blades: Pull PTO lever to activate cutting deck.

CAUTION! Operate only in well-ventilated areas. Keep hands and feet away from moving parts.

Specifications

Model: Murray 425306x48A
Engine: 30 HP Briggs & Stratton
Cutting Width: 42 inches
Transmission: 6-speed manual
Cutting Height: 1.5-4 inches (6 positions)
Fuel Capacity: 2.5 gallons
Cutting Options: Mulch, Bag, Side Discharge
Weight: 450 lbs
Warranty: 2-year limited

Controls and Settings

Operator station includes ignition, throttle, gear shift, cutting height lever, and PTO engagement.

Dashboard: Ignition key, throttle control, hour meter, headlight switch.

Cutting Height: Adjust via lever (positions 1-6). Transmission: 6-speed gear shift (1-6, R). PTO: Engage/disengage cutting blades. Parking Brake: Pull lever to set. Throttle: Control engine speed (slow-fast).

Operating the Mower

Start, operate, and shut down procedures.

Pre-start check: Oil, fuel, tire pressure, clear area.
Start engine: Sit on seat, set parking brake, turn key.
Select gear: Depress clutch, choose speed (start with 1).
Engage blades: Pull PTO lever once moving.
Mow in overlapping passes for even cut.
Shut down: Disengage PTO, set parking brake, turn key off.

Tip: Mow when grass is dry for best results. Avoid mowing in reverse.

Cutting System Options

Configure for mulch, bag, or side discharge.

Mulching: Install mulch plug; blades cut clippings finely.
Bagging: Attach grass bag to rear chute.
Side Discharge: Remove mulch plug; attach discharge chute.
Change height: Adjust lever for desired cutting height.

WARNING! Always stop engine and remove key before changing cutting configuration.

Safety Features

Operator Presence System: Engine stops if operator leaves seat with blades engaged. Blade Brake Clutch: Stops blades within 3 seconds when disengaged. Parking Brake: Locks rear wheels.

Maintenance Schedule

Regular maintenance ensures optimal performance.

After each use: Clean deck, check for damage.

Every 25 hours: Change oil, check air filter.

Every 50 hours: Sharpen blades, check spark plug.

Every 100 hours: Replace fuel filter, check belts.

CAUTION! Disconnect spark plug before performing maintenance.

Warranty Information

2-year limited warranty covering defects in materials/workmanship. Proof of purchase required. Does not cover normal wear, misuse, or lack of maintenance. For warranty claims, contact Murray customer service at 1-800-269-6215 or visit www.murray.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Fuel, spark, battery	Check fuel level; ensure spark plug connected; charge battery.
Poor cutting performance	Dull blades, low speed	Sharpen blades; mow at slower speed.
Excessive vibration	Loose blade, debris	Tighten blade bolt; clean deck of debris.
Loss of power	Clogged filter, old fuel	Replace air filter; drain old fuel.
Uneven cutting	Uneven tire pressure	Check and adjust tire pressure; level deck.

Reset: Turn key off, wait 30 seconds, restart.

Service: 1-800-269-6215; www.murray.com