Installation Guide
Tools Needed:
- Adjustable wrench
- Screwdrivers (flat and Phillips)
- Pliers
- Socket set
- Safety gloves
Step-by-Step Assembly
- Unpack and Inspect: Remove all packaging materials and check for any shipping damage or missing parts.
- Handle Assembly: Attach the upper and lower handle sections using provided bolts and hardware. Tighten securely.
- Install Height Adjustment Lever: Attach the cutting height adjustment lever to the designated bracket on the mower deck.
- Attach Grass Bag: Connect the grass collection bag to the rear discharge chute, ensuring secure attachment.
- Add Engine Oil: Fill the engine with the recommended SAE 30 motor oil to the proper level on the dipstick.
- Add Fuel: Fill the fuel tank with fresh unleaded gasoline (minimum 87 octane). Do not overfill.
- Final Inspection: Check all bolts and connections for tightness. Ensure all safety features are functioning properly.
Specifications
| Model Series | CMXGRAM1130047 |
| Type | Gas-Powered Push Mower |
| Engine Type | Briggs & Stratton 140cc OHV |
| Cutting Width | 21 inches |
| Cutting Heights | 1.25" to 3.75" (7 positions) |
| Fuel Tank Capacity | 1.1 quarts |
| Oil Capacity | 20 oz |
| Weight | 68 lbs |
| Wheel Size | 8-inch rear, 7-inch front |
| Starting System | Recoil Pull Start |
| Mulching Capability | Yes (mulching kit included) |
| Warranty | 3-year limited |
Warranty Information
- Full Warranty: 3-year limited warranty on entire mower
- Engine Warranty: 3-year limited warranty 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
Briggs & Stratton Engine
Powerful 140cc OHV engine provides reliable starting and consistent power for tough mowing conditions. Features advanced cooling system for extended engine life.
Triple-Blade Cutting System
Three high-lift blades create superior vacuum action for even cutting and excellent mulching performance. Blades are heat-treated for durability.
7-Position Height Adjustment
Single-lever height adjustment allows quick changes to cutting height from 1.25" to 3.75" without tools. Perfect for seasonal grass height variations.
Dura-Drive Transmission
Smooth-rolling transmission provides easy maneuverability and consistent speed control. No belts to slip or replace.
Versa-Mow System
Convert quickly between bagging, mulching, and side discharge modes without additional tools. Includes all necessary attachments.
Folding Handle
Easy-fold handle design allows for compact storage. Handle folds down without tools, saving valuable garage or shed space.
Cutting System Explained
Mulching Mode
Fine-cuts clippings and returns nutrients to lawn. Includes mulching plug and specialized blade.
Bagging Mode
Collects clippings in 2.1 bushel bag for clean lawn appearance. High-lift blade creates strong vacuum.
Side Discharge
Discharges clippings to side for cutting tall or wet grass. Includes discharge chute attachment.
Height Adjustment
Seven precise cutting heights from 1.25" to 3.75". Single lever controls all four wheels simultaneously.
Blade Brake Clutch
Safety feature stops blade rotation within 3 seconds when handle is released while engine continues running.
Wheel Design
8-inch rear wheels and 7-inch front wheels provide excellent traction and easy maneuverability on uneven terrain.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine won't start | Empty fuel tank, stale fuel, spark plug issue | Add fresh fuel, check spark plug, ensure choke is properly set |
| Engine starts then dies | Clogged fuel line, dirty air filter, carburetor issue | Clean fuel line, replace air filter, check carburetor settings |
| Uneven cutting | Dull blades, uneven tire pressure, deck not level | Sharpen or replace blades, check tire pressure, level mower deck |
| Excessive vibration | Bent blade, loose blade bolt, debris in blade area | Inspect and replace blade if bent, tighten blade bolt, clean under deck |
| Poor bagging performance | Full bag, clogged chute, wet grass | Empty bag, clean discharge chute, wait for grass to dry |
| Hard to push | Low tire pressure, engaged blade brake, tall wet grass | Inflate tires, disengage blade brake, cut grass when dry |
Maintenance Schedule
- Before Each Use: Check oil level, inspect blade, clear deck of debris
- Every 25 Hours: Change engine oil, clean or replace air filter
- Every 50 Hours: Replace spark plug, check blade sharpness
- Seasonal: Drain fuel or add stabilizer, clean entire mower, inspect cables
- Annual: Sharpen or replace blades, check wheel bearings, lubricate moving parts
- Storage: Clean thoroughly, drain fuel or add stabilizer, store in dry location
Manual Downloads
Current Model Manuals
CMXGRAM1130047
21" Push Mower with Briggs Engine
CMXGRAM1130055
21" Self-Propelled Mower
CMXGRAM1130039
21" Electric Start Mower
CMXGRAM1130021
21" Mower with Mulching Kit
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