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 damage during shipping.
- Handle Assembly: Attach the upper and lower handle sections using provided bolts and washers.
- Install Height Adjustment Lever: Connect the cutting height adjustment lever to the deck.
- Attach Grass Bag: Install the grass collection bag or mulching plug according to your preference.
- Add Engine Oil: Fill the engine with the recommended SAE 30 oil to the proper level on the dipstick.
- Add Fuel: Fill the fuel tank with fresh unleaded gasoline (minimum 87 octane).
- Final Check: Ensure all bolts are tightened, and all safety features are functioning properly.
Specifications
| Model Series | CMXGRAM1130041 |
| Type | Self-Propelled Gas Lawn Mower |
| Color | Red/Black |
| Cutting Width | 21 inches |
| Engine Type | Briggs & Stratton 163cc OHV |
| Drive System | Single-Speed Self-Propelled |
| Cutting Height Range | 1.25 to 3.75 inches |
| Fuel Capacity | 1.5 quarts |
| Oil Capacity | 20 oz |
| Weight | 78 lbs |
| Wheel Size | 10-inch rear, 8-inch front |
| Mulching Capability | Yes (with mulching plug) |
Warranty Information
- Full Warranty: 3 years limited warranty
- Engine Warranty: 2 years on Briggs & Stratton engine
- Additional Coverage: Optional extended warranty available
For warranty service, contact Craftsman Customer Service at 1-888-331-4569 or visit Craftsman.com
Key Features
Briggs & Stratton Engine
Powerful 163cc OHV engine provides reliable performance and easy starting with advanced combustion technology for better fuel efficiency.
Single-Speed Self-Propelled
Front-wheel drive system with single-speed transmission makes mowing easier on hills and uneven terrain with minimal effort.
Triple-Blade Cutting System
Three high-lift blades create superior airflow for excellent mulching, bagging, and side discharge performance.
6-Position Height Adjustment
Single-lever cutting height adjustment allows quick changes from 1.25 to 3.75 inches without tools.
Dura-Drive Transmission
Heavy-duty transmission provides reliable power transfer to the wheels for consistent performance in various conditions.
Foldable Handle
Easy-fold handle design allows for compact storage in limited spaces like garages and sheds.
Cutting Options Explained
Mulching
Finely cuts grass clippings and returns them to the lawn as natural fertilizer
Bagging
Collects grass clippings in a 2.5-bushel bag for a clean, manicured appearance
Side Discharge
Ejects clippings to the side for faster mowing in tall or wet grass conditions
3-in-1 Capability
Convert between mulching, bagging, and side discharge without tools
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine won't start | Empty fuel tank, old gasoline, spark plug issue | Add fresh fuel, check spark plug, ensure choke is properly set |
| Poor cutting performance | Dull blades, wrong cutting height, clogged deck | Sharpen blades, adjust cutting height, clean under deck |
| Uneven cutting | Uneven tire pressure, worn blades, uneven deck | Check tire pressure, replace blades, level mower deck |
| Self-propel not working | Drive belt loose or broken, drive cable adjustment | Check drive belt tension, adjust drive cable |
| Excessive vibration | Unbalanced blade, loose blade bolt, damaged blade | Balance or replace blade, tighten blade bolt |
| Engine stalls during operation | Clogged air filter, dirty carburetor, fuel flow issue | Clean air filter, check carburetor, ensure fuel flow |
Maintenance Schedule
- Before each use: Check oil level, tire pressure, and blade condition
- Every 25 hours: Clean air filter, check spark plug
- Every 50 hours: Change engine oil, sharpen blades
- Every 100 hours: Replace air filter, check drive belt
- Season end: Drain fuel or add stabilizer, clean thoroughly
Manual Downloads
Current Model Manuals
CMXGRAM1130041
21-inch Self-Propelled Mower
CMXGRAM1130032
21-inch Push Mower
CMXGRAM1150041
22-inch Self-Propelled Mower
CMXGRAM1100041
20-inch Electric Mower
Popular Previous Models
CMXGRAM1130022
21-inch Gas Mower
CMXGRAM1120041
21-inch Rear Bag Mower
CMXGRAM1110032
20-inch Briggs Mower
CMXGRAM1100022
19-inch Push Mower