Murray 461004x92A Lawn Mower Manual

The Murray 461004x92A is a walk-behind, self-propelled gas lawn mower featuring a Briggs & Stratton engine, 21-inch steel cutting deck, 3-in-1 mulching/bagging/side-discharge capability, single-lever height adjustment (6 positions), rear-wheel drive, and easy-start system. This manual covers safety, assembly, operation, maintenance, troubleshooting, and storage procedures to ensure optimal performance and longevity.

1. Features at a Glance 2. Assembly Instructions 3. First-Time Setup 4. Specifications 5. Controls and Operation 6. Cutting Height Adjustment 7. Maintenance Schedule 9. Safety Features 10. Cleaning & Storage 11. Warranty Information 12. Troubleshooting

Features at a Glance

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

Feature	Description
Engine	Briggs & Stratton 140cc OHV engine with easy-start system
Cutting Width	21-inch steel cutting deck
Cutting Options	3-in-1: Mulch, Bag, or Side Discharge
Drive System	Self-propelled rear-wheel drive with variable speed
Height Adjustment	Single-lever, 6 positions (1.5" to 3.75")
Starter	Recoil pull-start mechanism
Fuel Tank	0.5-gallon capacity
Wheels	8-inch rear, 7-inch front
Safety Features	Blade control (deadman) handle, engine stop lever
Bag Capacity	2.0 bushel rear bagger

Assembly Instructions

Unpack all parts from the box. Assembly requires basic tools (included).

Attach the handle: Align lower handle sections with mounting brackets on the deck. Secure with provided bolts and wing nuts.
Install the upper handle: Connect upper handle to lower sections, tighten all hardware.
Attach the grass bag: Hook the bag frame onto the rear deck brackets; ensure it clicks into place.
Install the side discharge chute (if not mulching): Attach to the side port.
Check wheel alignment: Ensure all wheels are securely fastened and rotate freely.

WARNING! Wear gloves during assembly. Ensure all bolts are tight before operation.

First-Time Setup

Before first use, perform these steps.

Add engine oil: Remove oil fill cap/dipstick, add SAE 30 detergent oil (approx. 20 oz.) to the "Full" mark.
Add gasoline: Use fresh unleaded gasoline (87 octane minimum). Fill tank to 1/2 inch below neck.
Check tire pressure: Inflate all tires to 15 PSI.
Test controls: Engage and release the blade control handle; ensure engine stop lever functions.
Start engine: Set throttle to "Fast", pull recoil starter firmly.

CAUTION! Never add oil to the gasoline. Operate outdoors only.

Specifications

Model: Murray 461004x92A
Engine: Briggs & Stratton 140cc, 4-cycle, OHV
Cutting Width: 21 inches
Cutting Height: 6 positions, 1.5" to 3.75"
Drive: Self-propelled, rear-wheel, variable speed
Deck Material: Powder-coated steel
Fuel Capacity: 0.5 gallons
Oil Capacity: 20 oz. (SAE 30)
Bag Capacity: 2.0 bushels
Weight: 65 lbs (approx.)

Controls and Operation

Main controls located on the handle.

Blade Control Handle: Must be held against the handle to keep the blade engaged. Release to stop blade.

Drive Control Bar: Squeeze against the handle to engage self-propelled drive; release to stop drive.

Throttle Control: "Fast" for cutting, "Slow" for idling, "Stop" to shut off engine.

Height Adjustment Lever: Single lever adjusts all four wheels simultaneously.

Recoil Starter: Pull firmly to start engine.

Cutting Height Adjustment

Adjust height before starting the mower.

Stop engine and wait for blade to stop completely.
Pull the height adjustment lever outward.
Move lever to desired position (1-6, lowest to highest).
Release lever to lock into place.
Check that all wheels are at the same height.

Tip: For first cut of season or tall grass, use a higher setting.

Maintenance Schedule

Regular maintenance ensures performance and safety.

Interval	Task
Before each use	Check oil level, inspect blade for damage, clear deck of debris
Every 25 hours	Change engine oil (or annually)
Every season	Replace air filter, spark plug
As needed	Sharpen or replace blade, check tire pressure
End of season	Drain fuel or add stabilizer, clean thoroughly

WARNING! Disconnect spark plug wire before performing any maintenance.

Safety Features

Blade Control (Deadman) Handle: Blade stops within 3 seconds of release. Engine Stop Lever: Cuts ignition. Safety Labels: Read and obey all labels on mower. Protective Footwear: Always wear sturdy shoes while operating.

Cleaning & Storage

Allow engine to cool completely. Clean underside of deck with hose or scraper. Wipe exterior with damp cloth. For storage, either drain fuel tank and carburetor or add fuel stabilizer. Store in a dry, covered area.

CAUTION! Never store with fuel in tank indoors. Keep away from open flames.

Warranty Information

Murray mowers are backed by a limited warranty. For residential use, the engine is covered by Briggs & Stratton's warranty terms. The mower deck and drive system are covered by Murray. Proof of purchase is required. For warranty service, contact an authorized Murray service center or call 1-800-XXX-XXXX. Visit www.murray.com for details.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel, old gas, spark plug	Check fuel level; use fresh gas; check/replace spark plug.
Engine runs poorly	Dirty air filter, old oil	Clean/replace air filter; change engine oil.
Mower vibrates excessively	Damaged/bent blade	Stop engine, disconnect spark plug, inspect and replace blade.
Uneven cutting	Dull blade, uneven tire pressure	Sharpen or balance blade; inflate all tires to 15 PSI.
Self-propel not working	Drive cable loose, debris	Adjust drive cable tension; clear debris from drive wheels.
Bag not filling	Wet grass, clogged deck	Mow when grass is dry; clean underside of deck.

Reset: For engine safety switch issues, ensure blade control handle is fully engaged.

Service: 1-800-XXX-XXXX; www.murray.com