Craftsman M110 Mower Manual

The Craftsman M110 is a 21-inch push lawn mower featuring a 140cc Briggs & Stratton engine, single-lever height adjustment, 3-in-1 capability (mulch/bag/side discharge), durable steel deck, easy-start system, and ergonomic handle. This manual covers safety instructions, assembly, operation, maintenance, troubleshooting, and specifications to ensure proper use and longevity of your mower.

1. Features at a Glance 2. Assembly Instructions 3. Safety Precautions 4. Specifications 5. Controls and Operation 6. Cutting Height Adjustment 7. 3-in-1 Deck Functionality 8. Maintenance Schedule 9. Storage Guidelines 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: 140cc Briggs & Stratton engine, 21-inch steel cutting deck, single-lever height adjustment, 3-in-1 system, rear bag, mulch plug, side discharge chute, ergonomic handle with cushioned grip.

Feature	Description
Engine	140cc Briggs & Stratton, 4-cycle, OHV
Cutting Width	21 inches
Deck Material	Durable steel construction
Height Adjustment	Single-lever, 6 positions (1.5-3.75 inches)
Cutting Options	Mulch, Bag, Side Discharge
Starting System	Recoil start with primer bulb
Wheels	8-inch rear, 7-inch front
Handle	Ergonomic, foldable for storage
Bag Capacity	2.1 bushels
Weight	Approximately 65 lbs

Assembly Instructions

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

Attach handle: Secure upper and lower handle sections with provided bolts and wing nuts.
Install wheels: Slide wheels onto axles and secure with retainer clips.
Attach bag: Hook bag frame onto rear deck brackets; ensure secure fit.
Install mulch plug (if desired): Place plug into rear discharge opening.
Add oil and gasoline: Fill engine with SAE 30 oil (check dipstick) and unleaded gasoline.

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

Safety Precautions

Always follow safety guidelines to prevent injury or damage.

Read manual thoroughly before operation.
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 allow children or pets near mower during operation.
Disconnect spark plug wire before performing maintenance.
Use both hands on handle; walk, never run, while mowing.

CAUTION! Engine and muffler become hot during use. Allow to cool before refueling or storing.

Specifications

Model: Craftsman M110
Engine: 140cc Briggs & Stratton, 4-cycle
Cutting Width: 21 inches
Cutting Height: 1.5 to 3.75 inches (6 positions)
Deck: 3-in-1 (mulch, bag, side discharge)
Wheels: 8-inch rear, 7-inch front
Bag Capacity: 2.1 bushels
Fuel Type: Unleaded gasoline (minimum 87 octane)
Oil Type: SAE 30 (20 oz capacity)
Weight: 65 lbs (approx.)

Controls and Operation

Handle Controls: Drive control bar (must be engaged to start engine), height adjustment lever, primer bulb, recoil starter.

Starting Procedure:

Check oil and fuel levels.
Push primer bulb 3 times (cold engine).
Set throttle to FAST position.
Hold drive control bar against handle.
Pull recoil starter firmly.

Stopping: Release drive control bar; engine will stop. For emergency stop, release bar and move throttle to STOP.

Cutting Height Adjustment

Single-lever adjustment for all four wheels.

Stop engine and wait for blade to stop.
Pull lever outward and move to desired height setting (1-6).
Release lever to lock into position.
Settings range from 1.5 inches (lowest) to 3.75 inches (highest).

Tip: For first mow of season, set to highest setting; gradually lower for subsequent mows.

3-in-1 Deck Functionality

Configure deck for mulching, bagging, or side discharge.

Mulching: Install mulch plug in rear discharge opening. Grass clippings are cut finely and returned to lawn.
Bagging: Attach grass bag to rear brackets. Clippings are collected for disposal.
Side Discharge: Remove mulch plug and bag; attach side discharge chute (optional). Clippings are ejected to side.

WARNING! Always stop engine and disconnect spark plug before changing deck configuration.

Maintenance Schedule

Regular maintenance ensures optimal performance and extends mower life.

Maintenance Task	Frequency
Check oil level	Before each use
Check air filter	Every 25 hours
Sharpen/replace blade	Every season or as needed
Change oil	First 5 hours, then every 50 hours
Clean under deck	After each use
Check spark plug	Every 100 hours
Lubricate wheels	Every season

Storage Guidelines

Proper storage prevents damage and prepares mower for next season.

Drain fuel or add fuel stabilizer for long-term storage.
Change oil at end of season.
Clean deck, wheels, and undercarriage thoroughly.
Sharpen blade and lubricate moving parts.
Store in dry, covered area, away from children.
Fold handle down to save space.

CAUTION! Never store mower with fuel in tank indoors or near open flame.

Warranty Information

Craftsman M110 comes with a 2-year limited warranty covering defects in materials and workmanship. Warranty does not cover normal wear, misuse, or lack of maintenance. For warranty service, contact Craftsman Customer Support at 1-888-331-4569 or visit www.craftsman.com. Keep original receipt as proof of purchase.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel, old gas, clogged filter	Check fuel level; use fresh gas; clean/replace air filter.
Engine runs poorly	Dirty spark plug, old oil	Clean or replace spark plug; change oil.
Uneven cutting	Dull blade, uneven tire pressure	Sharpen or replace blade; check tire pressure.
Excessive vibration	Loose blade, debris under deck	Tighten blade bolt; clean under deck.
Bag not filling	Wet grass, clogged chute	Mow when grass is dry; clear chute of debris.
Wheels not turning	Debris in axle, lack of lubrication	Clean axle; lubricate wheel bearings.

Service: For repairs not covered in manual, contact authorized Craftsman service center at 1-888-331-4569.