Murray 312006x50C Lawn Mower Manual

The Murray 312006x50C is a 21-inch push lawn mower featuring a 6.5 HP Briggs & Stratton engine, 2-in-1 side discharge/mulching capability, 3-position cutting height adjustment, durable steel deck, easy-start system, and rear bagger. Designed for residential use with a cutting width of 21 inches and a 2.5-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. Safety Precautions 4. Specifications 5. Controls and Operation 6. Cutting Height Adjustment 7. Maintenance Schedule 8. Engine Care 9. Storage Instructions 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: 6.5 HP Briggs & Stratton engine, 21-inch steel cutting deck, rear grass bag, height adjustment lever, recoil starter, mulching plug, and side discharge chute.

Feature	Description
Engine	6.5 HP Briggs & Stratton 4-cycle engine
Cutting Width	21 inches
Cutting Options	Side discharge, mulching, bagging
Cutting Height	3-position adjustment (1.5-3.5 inches)
Deck Material	Durable steel construction
Grass Bag Capacity	2.5 bushels
Starting System	Recoil pull-start
Wheels	8-inch rear, 7-inch front
Weight	Approximately 65 lbs
Fuel Tank Capacity	1 quart

Assembly Instructions

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

Attach handle: Secure upper and lower handle sections with provided bolts.
Install wheels: Attach all four wheels to axle using washers and retaining clips.
Attach grass bag: Hook bag frame onto rear deck brackets.
Install mulching plug: Insert plug into side discharge opening for mulching mode.
Add oil and fuel: Fill engine with SAE 30 oil and unleaded gasoline.

WARNING! Do not add fuel indoors or near open flames. Ensure all bolts are tightened securely.

Safety Precautions

Always operate mower with caution to prevent injury.

Read manual thoroughly before use.
Clear mowing area of stones, toys, and debris.
Wear sturdy shoes, eye protection, and long pants.
Do not mow wet grass or in poor visibility.
Never leave mower unattended while engine is running.
Keep hands and feet away from moving parts.
Disconnect spark plug before performing maintenance.

DANGER! Gasoline is flammable. Store fuel in approved container away from heat sources.

Specifications

Model: Murray 312006x50C
Engine: 6.5 HP Briggs & Stratton 4-cycle
Cutting Width: 21 inches
Cutting Height Range: 1.5 to 3.5 inches
Deck Material: 20-gauge steel
Grass Bag Capacity: 2.5 bushels
Wheels: 8-inch rear, 7-inch front
Fuel Type: Unleaded gasoline (87 octane minimum)
Oil Type: SAE 30 (summer), 5W-30 (winter)
Weight: 65 lbs (approx.)

Controls and Operation

Handle Controls: Throttle lever, drive control bar, height adjustment lever.

Starting: 1. Check oil and fuel levels. 2. Move throttle to FAST position. 3. Prime engine (if equipped). 4. Pull recoil starter firmly.

Stopping: Release drive control bar, move throttle to STOP, wait for blades to stop.

Operation Tips: Mow at steady pace, overlap passes slightly, avoid cutting more than 1/3 of grass height at once.

Cutting Height Adjustment

Adjust all four wheels simultaneously using single lever.

Stop engine and wait for blades to stop.
Pull height adjustment lever outward.
Move lever to desired position (1-low, 2-medium, 3-high).
Release lever to lock in position.
Verify all wheels are at same height.

Tip: Higher setting for rough terrain, lower for fine lawns.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Maintenance Task	Frequency
Check oil level	Before each use
Check air filter	Every 25 hours
Sharpen/replace blade	Every season or as needed
Clean underside of deck	After each use
Check spark plug	Every 100 hours
Change oil	Every 50 hours or season
Lubricate wheels	Every 25 hours

Engine Care

Briggs & Stratton engine requires proper care for reliable operation.

Oil: Check level regularly. Change every 50 hours using SAE 30.
Air Filter: Clean foam filter every 25 hours; replace if damaged.
Fuel: Use fresh unleaded gasoline. Add fuel stabilizer for storage.
Spark Plug: Clean and gap to 0.030 inches annually.
Cooling Fins: Keep clean to prevent overheating.

CAUTION! Engine is hot after operation. Allow to cool before maintenance.

Storage Instructions

Proper storage prevents damage during off-season.

Drain or stabilize fuel: Run engine dry or add fuel stabilizer.
Change oil: Replace with fresh oil before storage.
Clean thoroughly: Remove grass clippings from deck and undercarriage.
Sharpen blade: Prepare for next season.
Store indoors: Keep in dry, covered location.
Disconnect spark plug: Prevent accidental starting.

WARNING! Never store mower with fuel in tank near open flame or heat source.

Warranty Information

Murray mowers come with limited warranty. Residential use: 2-year limited warranty on mower, 2-year warranty on engine (Briggs & Stratton). Commercial use: 90-day warranty. Proof of purchase required. Warranty does not cover normal wear, misuse, or improper 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	No fuel, bad spark plug, stale gas	Check fuel level; replace spark plug; drain old gasoline.
Engine runs poorly	Dirty air filter, clogged fuel line	Clean/replace air filter; clear fuel line.
Uneven cutting	Dull blade, uneven tire pressure	Sharpen/replace blade; check tire pressure.
Excessive vibration	Loose blade, bent blade	Tighten blade bolt; replace bent blade.
Grass not discharging	Wet grass, clogged deck	Mow when dry; clean underside of deck.
Wheels not turning	Debris in axle, lack of lubrication	Clean axle; lubricate wheel bearings.

Service: For technical support, call 1-800-269-6215 or visit www.murray.com.