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 components for any shipping damage.
- Handle Assembly: Attach the upper and lower handle sections using provided bolts and hardware.
- Install Height Adjuster Levers: Attach cutting height adjuster levers to the deck according to the diagram.
- Attach Bagging System: Connect the grass collection bag or mulching plug to the rear discharge chute.
- 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, wheels are properly attached, and safety features are functional.
Specifications
| Model Series | CMXGRAM113004 |
| Type | Self-Propelled Gas Lawn Mower |
| Engine Type | Briggs & Stratton 163cc OHV |
| Cutting Width | 21 inches |
| Cutting Height Range | 1.25 to 3.75 inches |
| Drive System | Single Speed Self-Propelled |
| Fuel Capacity | 1.5 quarts |
| Oil Capacity | 20 oz (0.6L) |
| Wheel Size | 8 inches (front), 10 inches (rear) |
| Weight | 78 lbs |
| Deck Material | Steel with Powder Coat Finish |
| 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 protection plans available
For warranty service, contact Craftsman Customer Service at 1-888-331-4569 or visit Craftsman.com
Key Features
Self-Propelled Drive
Single-speed self-propelled system makes mowing easier on hills and large lawns by propelling the mower forward with minimal effort from the operator.
Briggs & Stratton Engine
Reliable 163cc OHV engine provides consistent power and performance with easy starting technology and reduced emissions.
Triple-Blade Cutting System
Three precision blades create a superior cutting action that lifts grass for an even cut and improved mulching performance.
6-Position Height Adjustment
Quick-adjust lever allows you to change cutting height from 1.25 to 3.75 inches with a single lever for different grass conditions.
3-in-1 Capability
Bag, mulch, or side discharge with simple conversion - no tools required to change between different grass management options.
Dura-Drive Transmission
Heavy-duty transmission provides reliable power transfer to the wheels for consistent performance on various terrains.
Cutting System Explained
Bagging
Collects clippings for a clean finish, ideal for reducing thatch buildup
Mulching
Fine cuts clippings and returns nutrients to the lawn as natural fertilizer
Side Discharge
Discharges clippings to the side for cutting tall or wet grass
Height Adjustment
Six cutting positions for different grass types and seasonal conditions
Blade Brake System
Safety feature that stops the blade within 3 seconds when handle is released
Wheel Size
Large rear wheels provide better traction and stability on uneven terrain
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine won't start | Empty fuel tank, stale gasoline, spark plug issue | Add fresh fuel, check spark plug, ensure choke is properly set |
| Poor cutting performance | Dull blades, improper height setting, clogged deck | Sharpen or replace blades, adjust cutting height, clean underside of deck |
| Self-propel not working | Drive belt loose or broken, drive cable adjustment | Check drive belt condition, adjust drive cable tension |
| Excessive vibration | Damaged blade, loose blade bolt, unbalanced blade | Inspect blade for damage, tighten blade bolt, balance or replace blade |
| Engine runs rough or stalls | Dirty air filter, water in fuel, carburetor issues | Clean or replace air filter, drain fuel tank, clean carburetor |
| Uneven cutting pattern | Uneven tire pressure, bent blade, uneven deck | Check tire pressure, inspect blade, level mower deck |
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 fuel system, check drive system
- Seasonal: Drain fuel for storage, lubricate moving parts, check cables
- Annual: Replace air filter, check/replace spark plug, inspect belts
- As Needed: Replace blade, check tire pressure, clean underside
Manual Downloads
Current Model Manuals
CMXGRAM113004
21" Self-Propelled Gas Mower
CMXGRAM113002
21" Push Gas Mower
CMXGRAM113006
21" Electric Start Mower
CMXGRAM113008
21" High Wheel Mower
Popular Previous Models
CMXGRAM113000
21" Classic Mower
CMXGRAM112004
22" Self-Propelled Mower
CMXGRAM111002
20" Push Mower
CMXGRAM110006
21" Briggs Engine Mower