Murray 387002x92NA Lawn Mower Manual

The Murray 387002x92NA is a 6.75 HP, 22-inch push lawn mower featuring a Briggs & Stratton engine, 3-in-1 cutting system (mulch/bag/side discharge), single-lever height adjustment, durable steel deck, and easy-start technology. This manual covers safety instructions, assembly, operation, maintenance, troubleshooting, and specifications to ensure proper and safe use of your lawn mower.

1. Features at a Glance 2. Assembly Instructions 3. Safety Instructions 4. Specifications 5. Controls and Operation 6. Cutting System Setup 7. Maintenance Schedule 8. Storage Instructions 9. Warranty Information 10. Troubleshooting

Features at a Glance

Key components: Briggs & Stratton 6.75 HP engine, 22-inch steel cutting deck, 3-in-1 cutting system, single-lever height adjustment, rear bagger, and ergonomic handle.

Feature	Description
Engine	Briggs & Stratton 6.75 HP, 4-cycle
Cutting Width	22 inches
Cutting System	3-in-1 (Mulch, Bag, Side Discharge)
Height Adjustment	Single-lever, 6 positions (1.5-3.75 inches)
Deck Material	Durable steel construction
Starting System	Recoil start with easy-start technology
Wheels	8-inch rear, 7-inch front
Fuel Tank Capacity	1.0 quart
Oil Capacity	20 oz (SAE 30 recommended)
Weight	Approximately 65 lbs

Assembly Instructions

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

Attach handle: Align handle brackets with deck mounts, secure with provided bolts and washers.
Install wheels: Insert axle through wheel hubs, secure with retainer clips.
Attach grass bag: Connect bagger frame to rear discharge chute, hang collection bag.
Install control cables: Connect throttle and engine stop cables to handle controls.
Add oil and fuel: Fill engine with SAE 30 oil to proper level, add unleaded gasoline.

WARNING! Do not attempt to start engine before completing assembly and adding oil.

Safety Instructions

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

Clear mowing area of stones, toys, and other objects that could be thrown.
Never allow children or pets in mowing area.
Always wear sturdy footwear and eye protection.
Do not mow wet grass or in poor lighting conditions.
Disconnect spark plug wire before performing maintenance.
Never leave mower unattended with engine running.
Use extreme caution when mowing on slopes.

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

Specifications

Model: Murray 387002x92NA
Engine: Briggs & Stratton 6.75 HP, 4-cycle
Cutting Width: 22 inches
Cutting Height: 1.5 to 3.75 inches (6 positions)
Cutting Options: Mulch, Bag, Side Discharge
Deck Material: 20-gauge steel
Wheel Size: 8-inch rear, 7-inch front
Fuel Type: Unleaded gasoline (87 octane minimum)
Oil Type: SAE 30 (above 40°F), 10W-30 (below 40°F)
Dimensions: 42" L x 22" W x 38" H (approx.)

Controls and Operation

Handle Controls: Throttle lever, engine stop lever, drive control bar. Deck Controls: Height adjustment lever, cutting system selector.

Starting Procedure:

Check oil and fuel levels.
Move throttle to FAST position.
Prime engine (if equipped) by pressing primer bulb 3 times.
Pull recoil starter firmly.

Stopping Procedure: Release drive control bar, move throttle to STOP, wait for blade to stop completely.

Height Adjustment: Move single lever to desired position (1-6). Lower numbers = lower cut.

Cutting System Setup

3-in-1 system allows mulching, bagging, or side discharge.

Mulching: Install mulch plug in discharge chute. Grass is cut finely and returned to lawn.
Bagging: Remove mulch plug, attach grass bag to rear chute.
Side Discharge: Remove mulch plug and bag, install side discharge deflector.

Tip: For best mulching results, mow when grass is dry and don't cut more than 1/3 of grass height.

Maintenance Schedule

Maintenance	Frequency	Procedure
Check oil level	Before each use	Add SAE 30 if low
Check air filter	Every 25 hours	Clean or replace
Sharpen blade	Every season	Remove, sharpen, balance
Change oil	Every 50 hours	Drain, refill with fresh oil
Replace spark plug	Every 100 hours	Gap to 0.030 inch
Clean under deck	After each use	Scrape off grass buildup

CAUTION! Always disconnect spark plug wire before performing maintenance.

Storage Instructions

Proper storage extends mower life and ensures easy starting next season.

Drain fuel tank or add fuel stabilizer.
Run engine until it stops to clear carburetor.
Change oil and replace air filter.
Clean entire mower, especially under deck.
Sharpen and balance blade.
Store in dry, covered area.

WARNING! Gasoline left in tank over winter can damage engine components.

Warranty Information

Murray 387002x92NA comes with a 2-year limited warranty covering defects in materials and workmanship. Warranty does not cover normal wear, misuse, or lack of maintenance. Keep original receipt for warranty claims. For warranty service, contact authorized Murray service center or call 1-800-800-7310.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel, bad spark plug, stale gas	Check fuel level, replace spark plug, drain old gas
Engine runs poorly	Dirty air filter, old gas	Clean/replace air filter, use fresh gasoline
Uneven cutting	Dull blade, uneven tire pressure	Sharpen blade, inflate tires evenly
Vibration	Bent blade, loose parts	Replace blade, tighten all bolts
Grass not bagging	Full bag, wet grass, clogged chute	Empty bag, mow dry grass, clear chute
Won't self-propel	Drive belt worn, control cable loose	Replace drive belt, adjust cable tension

Service: For technical support, call 1-800-800-7310 or visit www.murray.com