Installation Guide
Tools Needed:
- Socket wrench set
- Screwdrivers (flat and Phillips)
- Pliers
- Spark plug wrench
- Oil drain pan
- Air compressor
Step-by-Step Assembly
- Unpack and Inspect: Remove all packaging materials and inspect for any shipping damage or missing parts.
- Handle Assembly: Attach the upper and lower handle sections using provided bolts and washers.
- Wheel Installation: Mount all wheels onto the axle, ensuring proper alignment and secure fastening.
- Deck Height Adjustment: Set the cutting height adjustment lever to desired position and secure.
- Battery Installation (Electric Models): Insert battery into compartment, ensuring proper polarity and secure connection.
- Oil and Fuel (Gas Models): Add recommended engine oil and fuel before first use.
- Blade Installation: Install cutting blade with proper orientation and torque to manufacturer specifications.
- Safety Check: Verify all safety features are functioning properly before operation.
Specifications
| Model Series | CMXGRAM1130037 |
| Type | Gas-Powered Push Mower |
| Engine Type | Briggs & Stratton 140cc OHV |
| Cutting Width | 21 inches |
| Cutting Height Range | 1.5 - 4 inches |
| Fuel Capacity | 1.1 gallons |
| Oil Capacity | 20 oz |
| Weight | 68 lbs |
| Wheel Size | 8 inches front, 10 inches rear |
| Starting System | Recoil with ReadyStart® |
| Deck Material | Steel with corrosion-resistant coating |
| Mulching Capability | Yes (mulching kit included) |
Warranty Information
- Full Warranty: 2 years limited warranty
- Engine Warranty: 3 years on Briggs & Stratton engine
- Additional Coverage: Optional extended protection plan available
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 with ReadyStart® no-prime starting system for easy operation and consistent performance.
Triple-Blade Cutting System
Three cutting surfaces provide superior mulching, bagging, and side discharge performance with clean, even cuts.
Single-Point Height Adjustment
Quickly adjust all four wheels simultaneously with one lever for precise cutting height control from 1.5 to 4 inches.
Dura-Drive® Transmission
Smooth variable speed control with all-wheel drive capability for better traction on hills and uneven terrain.
FLEX Technology
Convert easily between bagging, mulching, and side discharge without tools for versatile lawn care.
Personal Pace® System
Self-propelled system automatically matches your walking speed for comfortable operation with less effort.
Maintenance Schedule
After Each Use
Clean underside of deck, check blade condition, wipe down surfaces
Every 25 Hours
Check air filter, inspect spark plug, lubricate moving parts
Every 50 Hours
Change engine oil, sharpen/replace blade, check drive system
Seasonal
Winterize fuel system, store properly, battery maintenance
Annual
Replace air filter, spark plug, check all safety features
As Needed
Replace belts, cables, wheels, and other wear components
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine won't start | Empty fuel tank, stale fuel, clogged air filter | Add fresh fuel, clean/replace air filter, check spark plug |
| Poor cutting performance | Dull blade, clogged deck, incorrect height setting | Sharpen/replace blade, clean deck, adjust cutting height |
| Engine runs rough or stalls | Dirty carburetor, water in fuel, fouled spark plug | Clean carburetor, drain fuel tank, replace spark plug |
| Uneven cutting pattern | Uneven tire pressure, bent blade, worn deck | Check tire pressure, replace blade, inspect deck |
| Excessive vibration | Unbalanced blade, loose components, bent crankshaft | Balance blade, tighten all bolts, check crankshaft |
| Self-propel not working | Broken drive belt, damaged cable, worn wheels | Replace drive belt, adjust/replace cable, check wheels |
Common Error Indicators
- Oil Light: Low oil level - Check and add oil immediately
- Hard Starting: Choke position incorrect - Adjust choke setting
- Smoking Engine: Overfilled oil - Drain excess oil to proper level
- Loss of Power: Clogged fuel line - Clean fuel system components
- Grinding Noise: Damaged blade or deck - Inspect and replace parts
- Won't Stay Running: Dirty carburetor - Clean or rebuild carburetor
Manual Downloads
Current Model Manuals
CMXGRAM1130037
21" Gas Push Mower
CMEMW212B6
21" Electric Mower
CMXGRAM1150047
22" Self-Propelled
CMEMW213B6
20" Battery Mower
Popular Previous Models
CMXGRAM1130022
21" Classic Mower
CMEMW211B6
19" Electric Mower
CMXGRAM1100022
21" Rear Bag Mower
CMEMW214B6
21" Corded Mower