Installation Guide
Tools Needed:
- Adjustable wrench
- Screwdrivers (flat and Phillips)
- Pliers
- Socket set
- Oil funnel
Step-by-Step Assembly
- Unpack and Inspect: Remove all packaging materials and inspect parts for any shipping damage.
- Handle Assembly: Attach the upper and lower handle sections using provided bolts and hardware.
- Install Height Adjustment Lever: Attach the cutting height adjustment lever to the deck.
- Attach Grass Bag: Install the grass collection bag or mulch plug according to your preference.
- Add Engine Oil: Fill the engine with the recommended SAE 30 or 10W-30 oil to the proper level.
- Add Gasoline: Fill the fuel tank with fresh unleaded gasoline with minimum 87 octane rating.
- Final Check: Ensure all bolts are tightened, safety features are functional, and wheels are properly attached.
Specifications
| Model Series | CMXGRAM1130041 |
| Type | Gas-Powered Push Mower |
| Engine Type | Briggs & Stratton 140cc OHV |
| Cutting Width | 21 inches |
| Cutting Height Range | 1.5 to 4 inches (6 positions) |
| Deck Material | Steel with Powder Coat Finish |
| Fuel Capacity | 1.1 quarts |
| Oil Capacity | 20 oz |
| Starting System | Recoil Start |
| Weight | 62 lbs |
| Wheel Size | 8-inch rear, 7-inch front |
| Mulching Capability | Yes (mulch plug included) |
Warranty Information
- Full Warranty: 2 years limited warranty
- Engine Warranty: 3 years on Briggs & Stratton engine
- Deck Warranty: Lifetime warranty on steel deck
For warranty service, contact Craftsman Customer Service at 1-888-331-4569 or visit Craftsman.com
Key Features
Briggs & Stratton Engine
Reliable 140cc OHV engine provides consistent power and efficient fuel consumption for medium to large lawns.
Triple Cutting System
Cut, bag, or mulch with ease. The versatile cutting system allows you to choose the best method for your lawn care needs.
6-Position Height Adjustment
Single-lever height adjustment allows quick changes to cutting height from 1.5 to 4 inches without tools.
Dura-Drive Transmission
Smooth transmission system provides easy maneuverability and consistent speed control during operation.
3-in-1 Capability
Rear bagging, side discharge, and mulching capabilities provide flexibility for different lawn conditions and seasons.
Folding Handle
Easy-fold handle system allows for compact storage in garages or sheds when not in use.
Cutting System Options
Rear Bagging
Collects clippings for a clean finish, ideal for frequent mowing
Side Discharge
Discharges clippings to the side for longer grass or wet conditions
Mulching
Recycles clippings into fine particles that fertilize the lawn
Bagging System
2.5 bushel capacity bag with easy-empty feature
Deck Design
Aerodynamic deck design improves airflow for better cutting performance
Blade System
High-lift blade creates strong vacuum for superior bagging and mulching
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine won't start | Old gasoline, clogged air filter, spark plug issue | Use fresh fuel, clean/replace air filter, check spark plug |
| Poor cutting performance | Dull blade, wrong cutting height, wet grass | Sharpen/replace blade, adjust height, mow when grass is dry |
| Engine runs rough or stalls | Dirty carburetor, water in fuel, clogged fuel line | Clean carburetor, drain fuel tank, check fuel line |
| Uneven cutting pattern | Uneven tire pressure, bent blade, uneven deck | Check tire pressure, inspect blade, level mower deck |
| Excessive vibration | Unbalanced blade, loose components, bent crankshaft | Balance blade, tighten bolts, inspect crankshaft |
| Bag not filling properly | Clogged deck, wet grass, improper blade installation | Clean deck underside, mow dry grass, check blade orientation |
Maintenance Schedule
- Before each use: Check oil level, inspect blade, clear deck of debris
- Every 25 hours: Sharpen blade, check air filter, inspect spark plug
- Every 50 hours: Change oil, clean/replace air filter, check tire pressure
- Seasonal: Drain fuel for storage, lubricate moving parts, inspect cables
- Annual: Replace spark plug, check/replace fuel filter, inspect safety features
- As needed: Replace blade, check wheel bearings, inspect deck for damage
Manual Downloads
Current Model Manuals
CMXGRAM1130041
21-inch Gas Push Mower
CMXGRAM1150041
21-inch Self-Propelled Mower
CMXGRAM1210041
21-inch Electric Start Mower
CMXGRAM1250041
25-inch Wide-Cut Mower
Popular Previous Models
CMXGRAM1100041
21-inch Standard Mower
CMXGRAM2100041
21-inch Rear Bag Mower
CMXGRAM3100041
21-inch Mulching Mower
CMXGRAM5100041
21-inch Commercial Mower