Craftsman Lawn Mower R110 Manual

The Craftsman R110 is a 21-inch push lawn mower featuring a 140cc Briggs & Stratton engine, 3-in-1 mulching/bagging/side-discharge capability, single-lever height adjustment (6 positions, 1.25-3.75 inches), durable steel deck, easy-start system, and rear-bagging collection system. This manual covers safety, assembly, operation, maintenance, troubleshooting, and specifications for optimal performance and longevity.

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

Features at a Glance

Key components: 140cc Briggs & Stratton engine, 21-inch steel cutting deck, rear grass bag, single-lever height adjuster, 3-in-1 discharge system, and push handle with safety bail.

Feature	Description
Engine	140cc Briggs & Stratton 675 Series, 4-cycle
Cutting Width	21 inches
Cutting Height	6 positions (1.25" to 3.75")
Deck Material	Durable steel construction
Discharge Options	Mulch, Bag, Side-Discharge (3-in-1)
Starting System	Recoil pull-start
Wheels	8-inch rear, 7-inch front
Bag Capacity	1.9 bushels (rear bag)
Handle	Foldable, adjustable with safety bail
Weight	Approximately 65 lbs

Assembly Instructions

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

Attach handle: Align lower handle sections with deck brackets, secure with bolts and wing nuts.
Install upper handle: Connect to lower handle, secure with provided hardware.
Attach grass bag: Hang bag frame on rear deck hooks, attach bag to frame.
Install discharge chute: For side-discharge, attach chute to deck opening.
Add engine oil: Fill with SAE 30 detergent oil (approx. 20 oz) as per engine manual.
Add gasoline: Use fresh unleaded gasoline (87 octane or higher).

WARNING! Wear gloves during assembly. Ensure all bolts are tight before operation.

Safety Information

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

Clear mowing area: Remove stones, toys, and debris.
Check equipment: Ensure blade is sharp and secure; all parts are tight.
Operate in daylight: Only mow when you have clear visibility.
Use safety bail: Hold down bail to keep engine running; release to stop blade.
Keep bystanders away: Especially children and pets.
Refuel safely: Stop engine and let cool before adding fuel.

CAUTION! Never operate without grass bag or discharge chute properly installed. Do not mow on steep slopes.

Specifications

Model: Craftsman R110
Engine: Briggs & Stratton 675 Series, 140cc, 4-cycle
Cutting Width: 21 inches
Cutting Height Range: 1.25 - 3.75 inches (6 positions)
Deck: 21-inch steel, 3-in-1 capability
Wheels: 8-inch rear, 7-inch front
Bag Capacity: 1.9 bushels
Starting: Recoil pull-start
Fuel Tank: 0.95 gallons
Oil Capacity: 20 oz (SAE 30)
Weight: 65 lbs (approx.)

Controls and Operation

Handle Controls: Safety bail (must be held to run), throttle control, height adjustment lever.

Starting: 1. Check oil and fuel. 2. Push primer bulb 3 times (cold engine). 3. Set throttle to FAST. 4. Hold safety bail against handle. 5. Pull recoil starter firmly.

Stopping: Release safety bail to stop blade. Move throttle to STOP position to stop engine.

Operation Tips: Mow at steady pace; overlap passes slightly for even cut. Empty bag when full to maintain performance.

Cutting Height Adjustment

Single-lever adjustment changes height for all four wheels simultaneously.

Stop engine and wait for blade to stop completely.
Pull height adjustment lever outward.
Move lever to desired position (1-6, lowest to highest).
Release lever to lock into position.
Test by rolling mower to ensure all wheels are at same height.

Tip: For first mow of season, set to highest setting. Never adjust height while engine is running.

3-in-1 Deck Function

Configure for mulching, bagging, or side-discharge.

Mulching: Install mulch plug (if included). Grass is cut finely and returned to lawn as fertilizer.
Bagging: Attach rear bag. Cuttings are collected for disposal.
Side-Discharge: Install discharge chute. Grass is expelled to side (right).

WARNING! Always ensure appropriate attachment is securely installed before operation. Never operate without any discharge method in place.

Maintenance Schedule

Maintenance Task	Frequency
Check engine oil level	Before each use
Check blade condition & sharpness	Every 25 hours
Clean underside of deck	After each use (when cool)
Replace air filter	Every season or 25 hours
Change engine oil	First 5 hours, then every 50 hours
Replace spark plug	Every 100 hours
Check wheel bolts & handle hardware	Monthly
Lubricate wheel axles	Every 50 hours

Storage & Winterization

Prepare mower for extended storage (especially winter).

Clean thoroughly: Remove grass clippings from deck, wheels, and engine.
Fuel treatment: Add fuel stabilizer to tank, run engine 5 minutes, or drain tank completely.
Oil change: Consider fresh oil change before storage.
Remove spark plug: Add teaspoon of oil to cylinder, pull starter slowly to coat, reinstall plug.
Store properly: Keep in dry, covered area. Store upright.

CAUTION! Never store with fuel in tank untreated. Gasoline degrades and can damage engine.

Warranty Information

Craftsman R110 includes a limited warranty. Refer to original purchase documentation for full terms.

Residential Warranty: 2-year limited warranty from date of purchase.
Commercial Warranty: 90-day limited warranty.
What's Covered: Defects in materials or workmanship.
What's Not Covered: Normal wear, misuse, lack of maintenance, improper storage.

For warranty service, contact Craftsman customer service at 1-888-331-4569 or visit www.craftsman.com. Have model number (R110) and serial number ready.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No fuel, old gas, clogged air filter, safety bail not engaged	Add fresh fuel; clean/replace air filter; ensure bail is held down.
Engine runs poorly	Dirty air filter, old gasoline, spark plug issue	Replace air filter; use fresh gas; check/replace spark plug.
Uneven cutting	Dull blade, uneven tire pressure, deck clogged	Sharpen/replace blade; clean deck; check tire pressure.
Excessive vibration	Loose blade, bent blade, debris in blade area	Tighten blade bolt; replace bent blade; clean debris.
Bag not filling	Deck clogged, wet grass, bag full	Clean deck underside; mow when grass is dry; empty bag.
Wheels hard to turn	Debris in axles, lack of lubrication	Clean axles; apply light lubricant.

Service: For engine-specific issues, refer to Briggs & Stratton manual included. For mower issues, contact Craftsman support: 1-888-331-4569.