Craftsman Air 390-291751 Compressor Manual

The Craftsman Air 390-291751 is a reliable air compressor designed for various tasks including inflating tires, powering pneumatic tools, and more. It features a powerful motor, a durable tank, and easy-to-use controls. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operating the Compressor 8. Maintenance 9. Safety Information 10. Troubleshooting

Features at a Glance

Key components: 6-gallon tank, oil-free pump, pressure gauge, quick coupler, and a sturdy handle for portability.

Feature	Description
6-Gallon Tank	Provides ample air storage for various tasks
Oil-Free Pump	Requires less maintenance and is easier to use
Pressure Gauge	Allows for easy monitoring of air pressure
Quick Coupler	Enables fast and easy connection of air hoses
Portable Design	Easy to transport with a sturdy handle

Installation

Unpack and inspect the compressor. Place it on a stable surface away from moisture.

Connect the air hose: Ensure the quick coupler is securely attached.
Plug into a power source: Use a grounded outlet.
Check for leaks: Turn on the compressor and inspect connections.

WARNING! Always ensure the compressor is off before making adjustments.

First-Time Setup

Power on the compressor; follow the setup instructions.

Set the desired pressure: Use the pressure gauge to adjust settings.
Check all connections: Ensure hoses and fittings are secure.
Test operation: Run the compressor briefly to ensure functionality.

CAUTION! Ensure the area is well-ventilated during operation.

Specifications

Tank Size: 6 gallons.
Motor Power: 1.5 HP.
Max Pressure: 125 PSI.
Weight: 40 lbs.
Dimensions: 24 x 15 x 20 inches.
Noise Level: 68 dB.
Power Source: 120V AC.

Controls and Settings

Access the pressure settings via the pressure gauge. The on/off switch is located on the front panel.

Safety Features: Automatic shut-off when maximum pressure is reached.

Connecting Devices

Connect air tools using the quick coupler. Ensure the compressor is off before connecting or disconnecting tools.

Turn off the compressor before connecting tools.
Match the tool's fitting to the quick coupler.
Turn on the compressor and adjust pressure as needed.

Tip: Always check for leaks after connecting devices.

Operating the Compressor

Follow these steps to operate the compressor effectively.

Power on the compressor using the switch.
Adjust the pressure to the desired level.
Connect your air tool and begin operation.
Monitor the pressure gauge during use.

WARNING! Do not exceed the maximum pressure rating.

Maintenance

Regular maintenance is essential for optimal performance.

Drain the tank regularly to prevent moisture buildup.
Check and replace air filters as needed.
Inspect hoses and fittings for wear and tear.

CAUTION! Always unplug the compressor before performing maintenance.

Safety Information

Read all safety instructions before operating the compressor. Always wear safety goggles and ear protection.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Compressor won't start	Power supply issue	Check power cord and outlet.
No air pressure	Leak in system	Inspect hoses and fittings for leaks.
Excessive noise	Loose parts	Tighten all screws and fittings.
Overheating	Blocked air intake	Clear any obstructions from the intake.

Reset: Unplug and plug back in to reset the compressor.

Service: For assistance, contact customer support.