Here’s a short and simple maintenance schedule for the DeWalt D55146 Air Compressor:

### Daily Maintenance:
– **Inspect for Leaks:** Check hoses and connections for any signs of air leaks.
– **Check Oil Level:** Ensure the oil level is adequate (if applicable).
– **Drain Tank:** Open the tank drain valve to remove accumulated moisture.

### Weekly Maintenance:
– **Clean Air Filter:** Inspect and clean the air filter to ensure proper airflow.
– **Inspect Power Cord:** Check for any signs of wear or damage to the power cord.
– **Check Safety Valve:** Test the safety relief valve to ensure it operates properly.

### Monthly Maintenance:
– **Check for Loose Bolts:** Tighten any loose bolts or hardware.
– **Inspect Wheels and Handles:** Ensure they are secure and in good condition.
– **Clean Exterior:** Wipe down the exterior to remove dust and debris.

### Annually:
– **Oil Change:** If the unit requires oil, change it according to the manufacturer’s recommendations.
– **Full Inspection:** Perform a comprehensive inspection of all components.
– **Professional Service:** Consider having the compressor serviced by a professional if heavily used.

Following this schedule can help keep your DeWalt D55146 Air Compressor in good working condition.

The DeWalt D55146 Air Compressor is a robust and versatile tool designed for both professional and DIY applications. Here’s an overview of its key specifications and features:

### Specifications:
– **Model:** DeWalt D55146
– **Type:** Electric Air Compressor
– **Power Source:** 120V
– **Motor:** 1.6 HP, 15 Amps
– **Tank Capacity:** 4.5 gallons
– **Max Pressure:** 225 PSI
– **Flow Rate:**
– **90 PSI:** 4.0 SCFM
– **40 PSI:** 5.0 SCFM
– **Weight:** Approximately 80 lbs
– **Dimensions:** 22 x 22 x 22 inches (approx.)
– **Pump Type:** Oil-lubricated for durability
– **Noise Level:** 78 dBA for quieter operation

### Features:
– **Portable Design:** Compact and stackable for easy transport and storage.
– **Quick Recovery:** High flow rate and fast recovery for efficient performance.
– **Durable Construction:** Built with rugged materials for long-lasting use.
– **Integrated Control Panel:** Easy-to-read gauges and controls for pressure monitoring.
– **Safety Features:** Equipped with a thermal overload protector to prevent motor burnout.
– **Multiple Outlets:** Allows for the simultaneous use of multiple tools.
– **Wheels and Handle:** For enhanced mobility on the job site.

### Applications:
– Ideal for powering pneumatic tools, inflating tires, and other tasks requiring compressed air.
– Suitable for framing, roofing, and finish work.

### Warranty:
– Typically comes with a 1-year limited warranty (check specific retailer for details).

Before purchasing, it’s advisable to verify the specifications and features with the manufacturer’s latest documentation or your retailer, as they may vary slightly based on production changes or updates.
Download the Spec Sheet

For the DeWalt D55146 Air Compressor, here are some common parts and their part numbers:

1. **Pressure Switch** – Part Number: 5040037
2. **Pressure Relief Valve** – Part Number: 5040038
3. **Compressor Pump** – Part Number: 5040039
4. **Air Filter** – Part Number: 5140010-13
5. **Oil Filter** – Part Number: 5140010-36
6. **Motor** – Part Number: 5140022-29
7. **Drain Valve** – Part Number: 5040040
8. **Check Valve** – Part Number: 5040041
9. **Wheels** – Part Number: 5140059-22
10. **Handle** – Part Number: 5140063-15

Always confirm with your local supplier or the manufacturer’s website for the most accurate information and compatibility, as part numbers may vary or be updated.
Download the Parts List

Troubleshooting a DeWalt D55146 Air Compressor can be straightforward if you follow a systematic approach. Here are the steps to take when troubleshooting common issues:

### 1. **Safety First**
– Always unplug the compressor before performing any maintenance or troubleshooting.
– Ensure you are wearing appropriate safety gear.

### 2. **Basic Checks**
– **Power Supply**: Verify that the compressor is properly plugged in and that the outlet is functional. Check for blown fuses or tripped circuit breakers.
– **Extension Cord**: If using an extension cord, make sure it’s rated for the compressor’s power requirements.

### 3. **Check the Pressure Switch**
– Ensure that the pressure switch is properly set and functioning. It should automatically turn the compressor on and off at designated pressures.
– Listen for any clicks from the pressure switch when the compressor is plugged in and turned on.

### 4. **Inspect the Hose and Connections**
– Check for leaks or damage in the air hose. Tighten any loose fittings or replace damaged hoses.
– Make sure all connections are secure and free from debris.

### 5. **Examine the Tank**
– Look for any visible cracks or damage on the tank. If there are any signs of wear, the tank may need to be replaced.
– Drain any accumulated condensation from the tank to prevent rust and corrosion.

### 6. **Check for Clogs**
– Inspect the intake filter and clean or replace it if it’s clogged. A blocked filter can restrict airflow and affect performance.

### 7. **Motor Issues**
– If the motor does not run, listen for unusual noises or vibrations which could indicate a mechanical failure.
– Check the motor capacitor for any signs of damage or leakage.

### 8. **Thermal Overload**
– If the compressor shuts off frequently, it may be overheating. Allow it to cool down and check that it’s not placed in a confined space or on a high-temperature surface.

### 9. **Oil Levels (if applicable)**
– Ensure that the oil levels are adequate if your model requires oil. Low oil levels can affect the lubrication of moving parts.

### 10. **Review the User Manual**
– Consult the user manual for specific troubleshooting tips and diagrams. It provides valuable information regarding operation and maintenance.

### 11. **Seek Professional Help**
– If all else fails and the issue persists, consider reaching out to a certified service technician or your local DeWalt service center for further assistance.

By following these steps, you can effectively identify and resolve common issues with your DeWalt D55146 Air Compressor.
Troubleshooting Guide