Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pliers
- Tape measure
- Pipe thread sealant
Step-by-Step Installation
- Choose Installation Location: Select a clean, dry, well-ventilated area with adequate clearance for maintenance and operation.
- Prepare the Surface: Place on a solid, level concrete floor capable of supporting the compressor's weight when fully loaded.
- Check Oil Level: Verify oil level is at the center of the sight glass before first use. Add recommended compressor oil if needed.
- Electrical Connection: Connect to a properly grounded 120V, 15A, 60Hz dedicated circuit. Use appropriate gauge extension cord if needed.
- Air System Setup: Connect air hoses using appropriate fittings. Install an in-line filter/regulator for best performance.
- Pressure Settings: Adjust pressure switch cut-in and cut-out settings according to your tool requirements.
- Initial Test Run: Run compressor without load for 30 minutes to break in the pump. Check for leaks and proper operation.
Specifications
| Model Series | CMEC6150 |
| Type | Vertical Tank Air Compressor |
| Color | Red/Black |
| Tank Capacity | 20 Gallons |
| Noise Level | 78 dB |
| Motor Type | Oil-Lubricated Pump |
| Maximum Pressure | 175 PSI |
| CFM at 90 PSI | 5.1 SCFM |
| CFM at 40 PSI | 6.2 SCFM |
| Power Requirements | 120V, 60Hz, 15A |
| Dimensions (HxWxD) | 50 x 20 x 20 inches |
| Weight | 125 lbs |
| Horsepower | 1.8 HP |
Warranty Information
- Full Warranty: 2 years limited warranty
- Pump Warranty: 3 years on compressor pump
- Tank Warranty: Lifetime limited warranty
For warranty service, contact Craftsman Customer Service at 1-888-331-4569 or visit Craftsman.com
Key Features
Oil-Lubricated Pump
Durable oil-lubricated pump design provides longer life, quieter operation, and better heat dissipation compared to oil-free models.
ASME Certified Tank
20-gallon ASME certified tank meets rigorous safety standards and includes a lifetime limited warranty against defects.
Dual Voltage Motor
Powerful 1.8 HP motor operates on standard 120V household current, making it suitable for home workshops and job sites.
Thermal Overload Protection
Built-in thermal overload protection prevents motor damage from overheating during extended use or high-demand applications.
Quick Recovery Time
Fast pump recovery quickly replenishes air supply, maintaining consistent pressure for continuous tool operation.
Low Amp Draw
Efficient motor design minimizes amp draw, reducing strain on electrical circuits and preventing tripped breakers.
Recommended Applications
Air Tools
Ideal for impact wrenches, ratchets, drills, and sanders
Spray Painting
Sufficient CFM for HVLP spray guns and detail work
Inflating
Perfect for tires, sports equipment, and inflatables
Nailing/Stapling
Power for framing nailers, finish nailers, and staplers
Cleaning
Effective for blow guns and cleaning tools
Automotive
Suitable for air ratchets, impact guns, and tire changers
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Compressor won't start | Power issue, pressure switch fault, thermal overload | Check power supply, reset thermal overload, check pressure switch |
| Low pressure output | Air leaks, worn pump rings, faulty check valve | Check for leaks, inspect check valve, test pump output |
| Excessive noise/vibration | Loose components, worn bearings, improper mounting | Tighten all fasteners, check mounting, inspect bearings |
| Oil in air lines | Overfilled oil, worn piston rings, faulty air/oil separator | Check oil level, inspect piston rings, replace separator if needed |
| Motor overheating | Dirty cooling fins, low voltage, excessive cycling | Clean cooling fins, check voltage, allow proper cool down |
| Slow recovery time | Worn valves, intake filter clogged, leaking gaskets | Clean intake filter, check valves, inspect gaskets |
Maintenance Schedule
- Daily: Drain moisture from tank, check oil level
- Weekly: Inspect hoses and connections for leaks
- Monthly: Clean intake filter, check belt tension
- Every 3 Months: Change compressor oil
- Every 6 Months: Inspect safety valve, clean cooling fins
- Annually: Complete system inspection, replace air filter
Manual Downloads
Current Model Manuals
CMEC6150
20 Gallon Vertical Compressor
CMEC6150V
20 Gallon Vertical with Wheels
CMEC6200
20 Gallon Horizontal Compressor
CMEC6150P
20 Gallon Portable Compressor
Popular Previous Models
919.152341
20 Gallon Oil-Free Compressor
919.167380
20 Gallon Professional Series
CMXECAM0202522
20 Gallon Ultra Quiet
CMEC6000
20 Gallon Basic Model