This document is a multi-language instruction manual for the DEWALT DXCM272 (CSA# U3A1758ND) Oilless, Single Stage, Electric Air Compressor. It provides detailed information on the compressor's features, specifications, installation, operation, maintenance, troubleshooting, and warranty.
Function Description
The DEWALT DXCM272 is an oilless, single-stage electric air compressor designed to provide compressed air for various applications. Its primary function is to compress ambient air and store it in an air tank for later use with air tools and accessories. Key components that facilitate its function include:
- Pump Air Intake Filter (A): Cleans air entering the pump, ensuring a clean, cool, and dry air supply.
- Auto (1) / Off (O) Switch (B): Controls the power to the pressure switch, allowing for automatic operation or manual shutdown.
- Air Tank Pressure Gauge (C): Displays the reserve air pressure stored in the tank.
- Regulated Pressure Gauge (D): Shows the air pressure available at the outlet side of the regulator, which can be adjusted.
- Pressure Regulator (E): Controls the air pressure coming from the air tank to the outlet.
- Air Outlet (F): The point where regulated compressed air is delivered.
- Safety Valve (G): A crucial safety feature designed to relieve pressure from the system if the compressed air reaches a predetermined, unsafe level, preventing system failures. It is factory preset and should not be removed or modified.
- Air Tank Drain Valve (H): Located at the base of the air tank, used to drain condensation after each use.
- Check Valve (I): Opens to allow compressed air into the tank during operation and closes when cut-out pressure is reached to maintain tank pressure.
- Quick Connect (J): A universal body that accepts popular quick connect plugs (Industrial, automotive, ARO) for easy hose and accessory attachment.
- Pressure Switch: Automatically starts the motor when tank pressure drops below the factory set cut-in pressure and stops it when the tank reaches the factory set cut-out pressure.
- Motor Overload Protector: A thermal protector that shuts off the motor if it overheats, requiring a cool-down period before restarting.
The compressor is designed for ease of use with its "push-to-connect" operation for hoses and accessories. It operates by compressing air into a 27-gallon tank, making working air available once the tank pressure exceeds the required outlet pressure.
Important Technical Specifications
The DXCM272 (CSA# U3A1758ND) air compressor has the following technical specifications:
- Type: Oilless, Single Stage, Electric Air Compressor
- Drive: Direct Drive
- Air Delivery: 5.1 SCFM @ 90 PSI (Standard Cubic Feet per Minute)
- Voltage: Single Phase 120V
- Minimum Branch Circuit Requirement: 15A
- Fuse Type: Time Delay
- Weight: 101 lbs. (45.8 kg)
- Height: 49.75" (126.37 cm)
- Width: 21" (53.34 cm)
- Length: 20" (50.8 cm)
- Air Tank Capacity: 27 gallons (102.2 liters)
- Approx. Cut-Out Pressure: 175 PSI (1207 kPa)
- Regulator Pressure Range: Up to 150 PSI
The compressor is built to ASME specifications, indicating that its components are manufactured, tested, and inspected to industry standards. It also carries CSA and CSA (USA) markings, confirming compliance with Canadian and U.L. standard 1450 safety standards.
Usage Features
The DXCM272 is designed for user-friendly operation with several features:
- Easy Start/Stop: The Auto (1) / Off (O) switch simplifies starting and stopping the compressor.
- Regulated Air Pressure: The pressure regulator allows users to adjust the air pressure to suit specific air tools and accessories, with a maximum regulated pressure of 150 PSI.
- Quick Connect System: The universal quick connect body (J) facilitates fast and easy attachment and detachment of hoses and accessories without requiring tools.
- Portability: Equipped with wheels, the compressor can be moved to different locations, though assistance is recommended due to its weight.
- Break-in Procedure: A specific break-in procedure is required before initial service and after replacing the check valve or pump, involving running the compressor for 15 minutes with the drain valve open to prevent pressure buildup.
- Accessory Compatibility: The compressor is compatible with petroleum-based air tools and accessories. An air line filter is recommended when spraying paint or if incompatibility with petroleum products is suspected.
- Safety Warnings: The manual emphasizes various safety guidelines, including risks of explosion, fire, asphyxiation, bursting, flying objects, hot surfaces, electrical shock, moving parts, injury from lifting, and noise. Users are advised to wear certified safety equipment, ensure proper ventilation, and follow all instructions to prevent injury or damage.
Maintenance Features
Regular maintenance is crucial for the efficient operation and longevity of the DXCM272 air compressor. The manual outlines a comprehensive maintenance schedule:
- Daily Maintenance:
- Check safety valve operation.
- Drain air tank to remove condensed water.
- Check for unusual noise/vibration.
- Check for air leaks using a soap solution.
- Weekly Maintenance:
- Inspect air filter (more frequent in dusty/humid conditions).
- Monthly Maintenance:
- Clean compressor exterior.
- Annual/100 Hours Maintenance:
- Have a trained service technician check the air compressor pump intake and exhaust valves.
- Tank Replacement: The air tank must be removed from service by the end of the year indicated on its warning label due to the risk of internal corrosion and rupture.
- Air Filter Maintenance: The air intake filter (A) should be kept clean and free of obstructions. It can be blown out with air or replaced if needed.
- Draining Air Tank: The air tank drain valve (H) must be opened daily or after each use to drain condensation, preventing rust and weakening of the tank.
- Leak Inspection: Regularly inspect air lines and fittings for leaks using a soap solution and correct any found.
- Oilless Design: As an oilless compressor, it does not require oil lubrication, simplifying maintenance.
- Professional Service: All maintenance and repair operations not explicitly listed in the manual must be performed by a trained DEWALT service technician or authorized service center. This includes any electrical wiring or repairs.
- Pre-Maintenance Safety: Before performing any maintenance or repair, the unit must be unplugged, all air pressure bled from the tank, and the compressor allowed to cool.
The manual also provides a detailed troubleshooting guide with possible causes and solutions for common issues, such as air leaks, restricted air intake, excessive current draw, and compressor stalls. For any questions or comments, users can contact DEWALT at 1-888-895-4549 or visit www.dewalt.com.
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