Murray 199128 Lawn Mower Manual

The Murray 199128 is a walk-behind, self-propelled gasoline lawn mower featuring a Briggs & Stratton engine, 21-inch steel cutting deck, 3-in-1 bagging/mulching/side-discharge capability, single-lever height adjustment, rear-wheel drive, and easy-start system. This manual covers safety, assembly, operation, maintenance, troubleshooting, and specifications to ensure proper use and longevity of your mower.

Features at a Glance

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

Assembly Instructions

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

1. Attach the handle: Align lower handle with deck brackets, secure with bolts and wing nuts.
2. Install upper handle: Slide onto lower handle, secure with provided knobs.
3. Attach the grass bag: Hook bag frame onto rear deck brackets; ensure bag is fully seated.
4. Install side discharge chute (if not using bagger/mulcher): Snap into place on deck opening.
5. Insert mulching plug (for mulching mode): Place into rear discharge opening.
6. Check tire pressure: Inflate to 15 PSI if necessary.
7. Add engine oil: Use SAE 30 detergent oil (approx. 20 oz) – check dipstick.
8. Add gasoline: Use fresh unleaded gasoline (87 octane or higher).

WARNING! Do not add gasoline during assembly or near open flames. Ensure all fasteners are tight before operation.

Operation Guide

Starting and operating your mower safely.

1. Pre-start check: Ensure oil and fuel levels are correct. Clear mowing area of debris.
2. Starting engine: Set throttle to FAST, pull choke (if cold), pull recoil starter firmly.
3. Engaging drive: Squeeze drive control bar against handle to propel mower forward.
4. Adjusting speed: Drive speed is controlled by engine throttle setting.
5. Cutting height: Use single lever to adjust all wheels simultaneously (1.5" to 3.5" range).
6. Stopping: Release blade control lever to stop blade; release drive control to stop movement. Turn engine OFF.

CAUTION! Always operate on dry grass. Do not mow on slopes greater than 15 degrees. Wear protective footwear and eye protection.

Specifications

• Model: Murray 199128
• Engine: Briggs & Stratton 125cc, 4-cycle, OHV
• Cutting Width: 21 inches
• Cutting Height: 1.5 - 3.5 inches (6 positions)
• Deck Material: Powder-coated steel
• Drive: Self-propelled, rear-wheel drive
• Wheels: 8-inch rear, 7-inch front
• Fuel Capacity: 1 quart (0.95 L)
• Oil Capacity: 20 oz (0.6 L)
• Weight: 65 lbs (approx.)
• Warranty: 2-year limited

Controls and Adjustments

Primary controls located on the handle.

Handle Controls: Blade Control Lever (must be held for blade rotation), Drive Control Bar (squeeze to engage drive), Throttle Control (FAST/SLOW/STOP), Choke Control (for cold starts).

Adjustments: Cutting Height Lever (single lever for all wheels), Handle Height (adjustable via knobs).

Deck Configurations: Install rear bag for collection, mulching plug for recycling clippings, or side discharge chute for expelling clippings.

Maintenance Schedule

Regular maintenance ensures optimal performance and safety.

1. Before each use: Check oil level, inspect blade for damage, clear deck of debris.
2. Every 25 hours: Change engine oil (or annually).
3. Every season: Replace air filter, spark plug. Check tire pressure.
4. As needed: Sharpen or replace blade. Clean underside of deck.
5. Storage: Perform end-of-season maintenance (see Storage section).

Tip: Always disconnect spark plug wire before performing any maintenance.

Engine Care

Briggs & Stratton engine maintenance procedures.

1. Oil Change: Run engine briefly to warm oil. Drain via dipstick tube or drain plug into container. Refill with SAE 30 detergent oil (20 oz).
2. Air Filter: Remove cover, clean foam pre-cleaner (if equipped), replace paper filter annually or when dirty.
3. Spark Plug: Remove and inspect. Gap to 0.030 inches. Replace annually (Champion RJ19LM or equivalent).
4. Fuel System: Use fresh gasoline. Add fuel stabilizer for storage. Never store with fuel in tank for more than 30 days.

WARNING! Engine is hot after operation. Allow to cool before servicing.

Blade Care & Sharpening

A sharp, balanced blade ensures a clean cut and reduces engine strain.

1. Disconnect spark plug wire.
2. Tip mower on its side (carburetor side up).
3. Block blade with wood to prevent turning, remove blade bolt (clockwise to loosen – left-hand thread).
4. Sharpen blade with file or grinder, maintaining original cutting angle. Remove equal metal from both ends.
5. Check balance by hanging blade on a nail; it should remain level. File heavy end if unbalanced.
6. Reinstall blade with bolt (tighten securely – left-hand thread).

CAUTION! Wear heavy gloves. Replace blade if cracked, bent, or excessively worn.

Storage Instructions

Proper storage prevents fuel system issues and corrosion.

1. Run engine to warm oil, then change oil.
2. Add fuel stabilizer to gas tank, run engine for 5 minutes to circulate.
3. Either: (a) Run engine until it stops to empty carburetor, OR (b) Turn fuel valve OFF and run engine until it stops.
4. Remove spark plug, add 1 tablespoon of oil into cylinder, pull starter slowly to distribute, reinstall plug.
5. Clean entire mower, especially underside of deck.
6. Store in a cool, dry place, preferably covered.

CAUTION! Never store mower with fuel in an enclosed area due to fire risk.

Safety Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © 2006 Insignia; trademarks of Best Buy Enterprise Services, Inc. Macrovision: Incorporates copy protection technology. For support, visit www.insigniaproducts.com or contact 1-877-467-4289.

Troubleshooting

Service: For engine service, contact Briggs & Stratton authorized service. For mower parts, visit www.murrayparts.com or contact 1-800-269-6215.