Installation Guide
Tools Needed:
- Adjustable wrench
- Screwdrivers (flat and Phillips)
- Pliers
- Socket set
- Safety gloves and glasses
Step-by-Step Assembly
- Unpack and Inspect: Remove all packaging materials and inspect parts for damage during shipping.
- Handle Assembly: Attach the upper and lower handle sections using provided bolts and washers.
- Wheel Installation: Install all four wheels onto the axle, ensuring they rotate freely.
- Deck Height Adjustment: Set the cutting height adjustment lever to desired position.
- Engine/Electrical Setup: For gas models: add oil and fuel. For electric: check battery charge or power cord connection.
- Safety Features Check: Verify that all safety switches and blade control systems function properly.
- Test Run: Start the mower in a safe area to ensure proper operation before first use.
Specifications
| Model Series | CMXGRAM1130037 |
| Type | Self-Propelled Lawn Mower |
| Engine Type | Gasoline / Electric Battery |
| Cutting Width | 21 inches |
| Cutting Height Range | 1.5 - 4 inches |
| Deck Material | Steel with Powder Coating |
| Engine Power (Gas) | 190cc OHV Engine |
| Battery (Electric) | 56V Lithium-Ion |
| Drive System | Single Speed Front Wheel Drive |
| Weight | 68 lbs (Gas), 62 lbs (Electric) |
| Fuel Capacity | 1.1 gallons (Gas Models) |
| Run Time (Electric) | Up to 60 minutes per charge |
Warranty Information
- Full Warranty: 3 years limited warranty
- Engine Warranty: 2 years on gas engines
- Battery Warranty: 3 years on lithium-ion batteries
For warranty service, contact Craftsman Customer Service at 1-888-331-4569 or visit Craftsman.com
Key Features
Briggs & Stratton Engine
Reliable power with easy-start technology and durable construction for long-lasting performance in all mowing conditions.
Single Lever Height Adjustment
Quickly adjust all four wheels simultaneously with one lever, allowing you to change cutting height without stopping.
3-in-1 Cutting System
Mulch, bag, or side discharge capabilities give you flexibility to handle any lawn condition and personal preference.
Dura-Drive Transmission
Smooth, reliable power transfer to the wheels with minimal maintenance requirements and consistent performance.
Folding Handle
Space-saving design allows for compact storage in your garage or shed when not in use.
Battery-Powered Option
Quiet, emission-free operation with quick-charge technology and sufficient runtime for most residential lawns.
Cutting System Options
Mulching
Finely cuts grass clippings and returns them to the lawn as natural fertilizer
Bagging
Collects clippings for a clean, manicured appearance with no debris left behind
Side Discharge
Ejects clippings to the side for faster mowing in tall or wet grass conditions
Height Adjustment
Seven position lever allows cutting height from 1.5 to 4 inches
Deck Wash Port
Connect garden hose to clean under deck without tipping mower
Wheel Size
8-inch front and 10-inch rear wheels for better traction and maneuverability
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine won't start | Empty fuel tank, stale gas, spark plug issue | Check fuel level, use fresh gasoline, inspect spark plug |
| Poor cutting performance | Dull blade, clogged deck, wrong cutting height | Sharpen or replace blade, clean deck, adjust height |
| Uneven cutting | Uneven tire pressure, bent blade, uneven deck | Check tire pressure, inspect blade, level mower deck |
| Excessive vibration | Unbalanced blade, loose components, bent crankshaft | Balance or replace blade, tighten bolts, check crankshaft |
| Loss of power | Dirty air filter, clogged fuel filter, old oil | Clean/replace air filter, check fuel filter, change oil |
| Self-propel not working | Drive belt loose or broken, drive cable adjustment | Check drive belt tension, adjust drive cable |
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 oil, sharpen blade, check drive belt
- Season end: Drain fuel or add stabilizer, clean thoroughly
- Season start: Change oil, check all systems, fresh fuel
- Electric models: Keep battery charged, clean connections
Manual Downloads
Current Model Manuals
CMXGRAM1130037
21" Self-Propelled Gas Mower
CMCEAML1100041
21" Electric Battery Mower
CMXGRAM1100022
21" Push Gas Mower
CMCEAML1070019
20" Electric Corded Mower
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