Installation & Setup Guide
Tools Needed:
- Adjustable wrench
- Screwdrivers (flat and Phillips)
- Pliers
- Socket set
- Fuel container (for gas models)
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.
- Install Wheels: Mount all four wheels onto the axle brackets and secure with provided pins or bolts.
- Attach Grass Bag: Connect the grass collection bag to the rear discharge chute if applicable.
- Oil and Fuel (Gas Models): Add recommended engine oil and fresh gasoline to appropriate levels.
- Battery Installation (Electric Models): Install battery following polarity markings and secure connections.
- Safety Check: Verify all safety features including blade control lever and safety key operation.
- Test Run: Start mower in a clear area to ensure proper operation before first use.
Specifications
| Model Series | CMXGRAM1130037 |
| Type | Self-Propelled Gas Lawn Mower |
| Engine Type | Briggs & Stratton 163cc OHV |
| Cutting Width | 21 inches |
| Cutting Height Range | 1.5 to 4 inches |
| Deck Material | Steel with Rust-Resistant Coating |
| Drive System | Single-Speed Rear Wheel Drive |
| Fuel Capacity | 1.5 quarts |
| Oil Capacity | 20 oz (SAE 30) |
| Weight | 78 lbs |
| Wheel Size | 8 inches (front), 10 inches (rear) |
| Mulching Capability | Yes (with included kit) |
Warranty Information
- Full Warranty: 2 years parts and labor
- Engine Warranty: 3 years limited engine warranty
- Deck Warranty: Lifetime limited deck warranty
- Additional Coverage: 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
Reliable 163cc OHV engine with ReadyStart® technology for easy starting without priming or choking in most conditions.
Single Lever Height Adjustment
Quickly adjust all four wheels simultaneously with one lever to change cutting height from 1.5 to 4 inches.
3-in-1 Capability
Bag, mulch, or side discharge with simple deck conversion - no tools required for most changes.
Self-Propelled Drive
Rear-wheel drive system with single-speed operation for easy maneuvering on various terrains and slopes.
Dura-Drive™ Transmission
Heavy-duty transmission designed for consistent performance and reduced maintenance requirements.
Triple-Blade Cutting System
Three high-lift blades create superior vacuum action for even cutting and excellent bagging performance.
Cutting Options Explained
Bagging
Collects clippings for clean lawn appearance and reduced thatch buildup
Mulching
Fine-cuts clippings and returns them to lawn as natural fertilizer
Side Discharge
Discharges clippings to the side for longer grass or wet conditions
Variable Speed
Adjustable forward speed control for different mowing conditions
Easy Fold Handle
Quick-fold handle system for compact storage and transportation
Washout Port
Built-in port for easy deck cleaning after use
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine won't start | Empty fuel tank, stale gas, clogged air filter | Add fresh gasoline, clean/replace air filter, check spark plug |
| Poor cutting performance | Dull blades, incorrect cutting height, wet grass | Sharpen/replace blades, adjust cutting height, wait for grass to dry |
| Uneven cutting | Uneven tire pressure, bent blade, uneven deck | Check tire pressure, inspect blade, level mower deck |
| Excessive vibration | Damaged blade, loose components, debris in deck | Inspect and balance blade, tighten all bolts, clean deck interior |
| Self-propel not working | Drive belt worn, drive cable loose, debris in drive | Check drive belt tension, adjust drive cable, clean drive system |
| Engine stalls during operation | Clogged fuel filter, dirty carburetor, overheating | Replace fuel filter, clean carburetor, check oil level and cooling fins |
Maintenance Schedule
- Before Each Use: Check oil level, inspect blade, clear debris
- Every 25 Hours: Sharpen blade, check air filter, inspect spark plug
- Every 50 Hours: Change oil, clean/replace air filter, check drive belt
- Seasonal: Drain fuel or add stabilizer, clean entire mower, store properly
- Annual: Replace spark plug, check all safety features, lubricate moving parts
- As Needed: Replace blade, drive belt, wheels, and other wear items
Manual Downloads
Current Model Manuals
CMXGRAM1130037
21" Self-Propelled Gas Mower
CMEMG2120037
21" Electric Start Mower
CMCES6120037
21" Battery Electric Mower
CMXGRAM1150037
22" Wide-Cut Gas Mower
Popular Previous Models
CMXGRAM1130025
21" Classic Gas Mower
CMEMG2120022
21" Push Gas Mower
CMCES6110030
20" Electric Mower
CMXGRAM1100028
190cc Gas Mower