Dewalt D55146 Compressor Manual

The Dewalt D55146 is a portable air compressor designed for both professional and DIY use. It features a 4.5-gallon tank, a powerful 1.6 HP motor, and a maximum pressure of 200 PSI. This compressor is ideal for a variety of applications, including powering pneumatic tools, inflating tires, and more. 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: 4.5-gallon tank, 1.6 HP motor, maximum pressure of 200 PSI, dual quick couplers, and a durable design for portability.

Feature	Description
4.5-gallon tank	Provides ample air storage for various tasks
1.6 HP motor	Delivers powerful performance for demanding applications
Maximum pressure of 200 PSI	Suitable for a wide range of pneumatic tools
Dual quick couplers	Allows for two tools to be used simultaneously
Portable design	Easy to transport and store

Installation

Unpack and inspect contents. Place the compressor on a stable surface.

Connect the air hose to the quick coupler.
Ensure the drain valve is closed before use.
Plug into a grounded outlet.
Check oil levels if applicable.

WARNING! Always ensure the compressor is on a flat surface to avoid tipping.

First-Time Setup

Power on the compressor; follow the setup instructions provided in the manual.

Set the desired pressure using the regulator.
Connect your pneumatic tool to the air hose.
Turn on the compressor and allow it to build pressure.
Check for leaks before starting work.

CAUTION! Ensure all connections are secure before operating.

Specifications

Tank Size: 4.5 gallons.
Motor Power: 1.6 HP.
Maximum Pressure: 200 PSI.
Weight: 50 lbs.
Dimensions: 18 x 18 x 18 inches.
Noise Level: 78 dBA.
Power Source: 120V AC.

Controls and Settings

Access controls on the front panel: pressure regulator, on/off switch, and quick couplers.

Regulator: Adjusts the output pressure for your tools.

On/Off Switch: Powers the compressor on and off.

Connecting Devices

Connect your pneumatic tools using the quick couplers provided.

Ensure the compressor is off before connecting tools.
Match the tool's air hose to the quick coupler.
Turn on the compressor to start using the tool.

Tip: Always check for leaks after connecting tools.

Operating the Compressor

Follow these steps to operate the compressor safely.

Turn on the compressor and wait for it to reach the desired pressure.
Use your pneumatic tool as needed.
Monitor the pressure gauge during operation.
Turn off the compressor when finished.

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 the air filter as needed.
Inspect hoses and connections for wear and tear.
Store in a dry place when not in use.

Safety Information

Always follow safety guidelines when operating the compressor.

Wear appropriate personal protective equipment.
Do not operate in wet conditions.
Keep children and pets away from the compressor during use.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Compressor won't start	Power supply issue	Check power cord and outlet.
Low pressure	Leak in the system	Inspect hoses and connections for leaks.
Excessive noise	Worn motor or parts	Inspect and replace worn components.
Tank won't fill	Faulty pressure switch	Check and replace pressure switch if necessary.

Reset: Follow the manufacturer's instructions for resetting the compressor.