Murray 425620x92A Lawn Mower Manual

The Murray 425620x92A is a 21-inch push lawn mower featuring a 190cc Briggs & Stratton engine, 3-in-1 mulching/bagging/side-discharge capability, single-lever height adjustment (6 positions: 1.5"-3.75"), durable steel deck, easy-start system, washout port for cleaning, and a 2.1 bushel grass bag. Below are key sections for safety, features, assembly, operation, maintenance, troubleshooting, and specifications.

1. Features at a Glance 2. Assembly Instructions 3. First-Time Setup 4. Specifications 5. Controls and Operation 6. Cutting & Discharge Options 7. Maintenance Schedule 8. Storage & Winterization 10. Safety Information 11. Warranty & Support 12. Troubleshooting

Features at a Glance

Key components: 190cc Briggs & Stratton engine, 21-inch steel cutting deck, 3-in-1 discharge system, single-lever height adjuster, washout port, 2.1 bushel grass bag.

Feature	Description
Engine	190cc Briggs & Stratton 4-cycle, overhead valve (OHV)
Cutting Width	21 inches
Cutting Height	6 positions (1.5" to 3.75")
Discharge Options	Mulch, Bag, Side-Discharge (3-in-1)
Deck Material	Durable powder-coated steel
Grass Bag Capacity	2.1 bushels
Starting System	Recoil start with primer bulb
Washout Port	For easy deck cleaning
Wheels	8-inch rear, 7-inch front
Handle	Foldable for storage

Assembly Instructions

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

Attach Handle: Align lower handle with deck brackets, secure with provided bolts and wing nuts.
Install Upper Handle: Connect to lower handle, secure with bolts.
Attach Grass Bag: Hang bag brackets on rear deck hooks; ensure bag is fully seated.
Install Side-Discharge Chute (if not pre-installed): Slide into side port, secure with pin or bolt.
Add Engine Oil: Engine is shipped without oil. Add 20 oz. of SAE 30 detergent oil (check dipstick).
Add Fuel: Use fresh unleaded gasoline (87 octane minimum). Do not overfill.

WARNING! Keep hands and feet clear of cutting blade during assembly. Ensure all fasteners are tight.

First-Time Setup

Before first use, complete final checks and safety procedures.

Check Oil Level: Ensure oil is at full mark on dipstick.
Check Blade: Ensure cutting blade is properly installed and tightened.
Select Cutting Height: Adjust lever to desired setting (start at 3" for first mow).
Choose Discharge Mode: Install appropriate insert (mulch plug, bag, or side chute).
Start Engine: Press primer bulb 3 times, set choke (if cold), pull starter cord firmly.

CAUTION! Operate only in clear daylight. Clear mowing area of debris, rocks, and toys.

Specifications

Model: Murray 425620x92A
Engine: 190cc Briggs & Stratton 4-cycle OHV
Cutting Width: 21 inches
Cutting Heights: 1.5", 2", 2.5", 3", 3.25", 3.75"
Deck: 21-inch steel, powder-coated
Discharge: 3-in-1 (Mulch/Bag/Side-Discharge)
Grass Bag Capacity: 2.1 bushels
Wheels: 8" rear, 7" front
Weight (approx.): 65 lbs
Fuel Tank Capacity: 1.0 quart
Oil Capacity: 20 oz. SAE 30

Controls and Operation

Handle Controls: Engine stop lever (deadman control), height adjustment lever.

Starting Procedure:

Check oil and fuel.
Press primer bulb 3 times (cold engine).
Set choke to FULL position (cold) or FAST (warm).
Hold engine stop lever against handle.
Pull starter cord briskly.
Move choke to FAST after engine starts.

Stopping: Release engine stop lever. Engine will stop.

Height Adjustment: Move single lever to desired position (all wheels adjust simultaneously).

Cutting & Discharge Options

Configure mower for desired grass handling.

Mulching: Install mulch plug into discharge chute. Cuts clippings finely and returns to lawn.
Bagging: Attach grass bag. Ensure bag is empty and properly seated.
Side-Discharge: Install side-discharge chute. Directs clippings to side (right).

Tip: For best mulching, mow when grass is dry and not too tall. Overlap passes slightly.

Maintenance Schedule

Regular maintenance ensures long life and safe operation.

Interval	Task
Before each use	Check oil level, inspect blade for damage, clear deck of debris.
Every 5 hours	Check air filter; clean or replace if dirty.
Every 25 hours	Change engine oil (or annually).
Every season	Sharpen or replace blade, check spark plug, clean underside of deck.
As needed	Check tire pressure, tighten bolts/nuts, replace grass bag if torn.

Blade Sharpening: Disconnect spark plug wire. Remove blade; sharpen at original angle (balance blade after sharpening).

Storage & Winterization

Prepare mower for extended storage (especially over winter).

Run engine to warm oil, then drain oil (while warm). Refill with fresh oil if storing.
Add fuel stabilizer to gas tank, run engine 2 minutes to circulate, or drain tank completely.
Clean underside of deck thoroughly using washout port.
Remove spark plug, add 1 teaspoon of oil into cylinder, pull starter slowly to coat, reinstall plug.
Store in clean, dry place. Cover mower.

CAUTION! Never store with fuel in tank indoors or in enclosed space without stabilizer.

Safety Information

Read and understand all safety rules before operation.

Wear sturdy shoes, eye protection, and long pants.
Clear mowing area of objects that could be thrown.
Do not mow wet grass.
Never remove grass bag or unclog chute with engine running.
Disconnect spark plug wire before performing any maintenance.
Keep children and pets away from mowing area.
Use mower only in daylight with good visibility.
Do not pull mower backward while mowing.

DANGER! Rotating blade can cause severe injury. Keep hands and feet away.

Warranty & Support

Murray mowers are backed by a limited warranty. Proof of purchase required.

Limited Warranty: 2-year limited warranty for residential use. Covers defects in materials/workmanship.

Support: For parts, manuals, or service, contact Murray Customer Support at 1-800-XXX-XXXX or visit www.murray.com. Have model number (425620x92A) and serial number ready.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel, old fuel, clogged air filter, spark plug wire disconnected	Add fresh fuel; clean/replace air filter; check spark plug connection.
Engine runs poorly	Dirty air filter, old gasoline, water in fuel	Clean air filter; drain fuel tank and add fresh gasoline.
Uneven cut	Dull blade, uneven tire pressure, deck clogged	Sharpen/replace blade; check tire pressure; clean deck.
Excessive vibration	Loose or damaged blade, debris wrapped around blade	Stop engine, disconnect spark plug, inspect and tighten/replace blade.
Grass not discharging	Wet grass, deck clogged, cutting height too low	Mow when grass is dry; clean deck; raise cutting height.
Wheels not turning	Debris blocking axle, damaged wheel	Clean axle area; inspect and replace wheel if necessary.

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