If you have questions or comments, contact us. Pour toute question ou tout commentaire, nous contacter. Si tiene dudas o comentarios, contáctenos. 1-800-4-DEWALT • www.dewalt.com INSTRUCTION MANUAL GUIDE D'UTILISATION MANUAL DE INSTRUCCIONES INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES DE USAR EL PRODUCTO.
English D55250 Air Compressor A. Pump Air Filter B. Engine Air Filter C. Engine On/Off Switch D. Air Tank Pressure Gauge E. Regulated Pressure Gauge F. Pressure Regulator G. Quick-Connect Bodies H. Unloader Valve I. Safety Valve J. Air Tank Drain Valve H FIG. 1 K. Throttle Control L. Pump Oil Dipstick M. Pump Oil Drain Plug B K Pump Specifications G Direct Drive Oil Lube Oil Capacity: 4 oz. (118.
Specifications WEIGHT HEIGHT WIDTH LENGTH D55250 68 lbs. (30.84 kg). 17 in. (431.8 mm) 18 in. (457.2 mm) 21.5 in. (546.1 mm) 4 (15.1 liters) Hot Surfaces ENGINE MUFFLER OUTLET TUBE (NOT SHOWN) APPROX. UNLOADER RESET PRESSURE APPROX. BLOW OFF PRESSURE 100 PSI (689.5 kPa) 125 PSI (861.8 kPa) SCFM @ 100 PSI (689.5 KPA) 4.5 Definitions: Safety Guidelines FIG. 2 The definitions below describe the level of severity for each signal word.
English Important Safety Instructions WARNING: Do not operate this unit until you read and understand this instruction manual and the engine instruction manual for safety, operation and maintenance instructions. WARNING: This product is not equipped with a spark-arresting muffler.
• Store fuel in an OSHAapproved container, in a secure location away from work area. WARNING: RISK OF BURSTING Air Tank: The air tank on your Air Compressor is designed and may be UM coded (for units with air tanks greater than 6 inch diameter) according to ASME Section VIII, Div. 1 rules. All pressure vessels should be inspected once every two years.
English • Unauthorized modifications to the unloader valve, safety valve, or any other components which control air tank pressure. • Excessive vibration can weaken the air tank and cause rupture or explosion. Excessive vibration will occur if the compressor is not properly mounted or if engine operates above recommended RPM.
DANGER: RISK TO BREATHING (ASPHYXIATION) WHAT CAN HAPPEN HOW TO PREVENT IT • Always operate air compressor • Breathing exhaust fumes will cause serious injury outside in a clean, well or death! Engine exhaust ventilated area. Avoid enclosed contains carbon monoxide, areas such as garages, an odorless and deadly gas. basements, storage sheds, which lack a steady exchange or air. Keep children, pets and others away from area of operation.
English WARNING: RISK FROM MOVING PARTS WHAT CAN HAPPEN HOW TO PREVENT IT • The engine can start • Always disconnect the spark accidentally if the flywheel is plug and bleed pressure from turned by hand or moved by the air tank before performing pulling on the starter rope. maintenance. • Moving parts such as the • Never operate the compressor pulley, flywheel, and belt can with guards or covers which are cause serious injury if they damaged or removed.
WARNING: RISK OF INJURY FROM LIFTING WHAT CAN HAPPEN • Serious injury can result from attempting to lift too heavy an object. HOW TO PREVENT IT • The compressor is too heavy to be lifted by one person. Obtain assistance from others before lifting. SAFETY VALVE This valve (I) is designed to prevent system failures by relieving pressure from the system when the compressed air reaches a predetermined level. The valve is preset by the manufacturer and must not be removed or modified in any way.
English AIR TANK PRESSURE GAUGE The air tank pressure gauge (D) indicates air pressure in the air tank. REGULATED PRESSURE GAUGE The regulated pressure gauge (E) indicates the air pressure available at the outlet side of the regulator. This pressure is controlled by the regulator and is always less or equal to the air tank pressure. INSTALLATION Assembly (Fig. 1) E D F INSTALLING HOSES WARNING: Risk of unsafe operation. Firmly grasp hose in hand when installing or disconnecting to prevent hose whip.
Compatibility Air tools and accessories that are run off the compressor must be compatible with petroleum based products. If you suspect that a material is not compatible with petroleum products, an air line filter for removal of moisture and oil vapor in compressed air is required. NOTE: Always use an air line filter to remove moisture and oil vapor when spraying paint. TRANSPORTING When transporting the compressor in a vehicle, trailer, etc., ensure that the tank is drained and the unit is secured.
English 7. Ensure all covers and labels are in place, legible (for labels) and securely mounted. Do not use compressor until all items have been verified. 7. Run the air compressor for 30 minutes to seat the rings and lubricate all the internal surfaces. Ensure there is no pressure build up in the air tank by observing the reading on the air tank pressure gauge. 8. Rotate the manual lock on the unloader valve into the closed position so the air tank pressure can build. 9. Close the pressure regulator.
NOTE: All compressed air systems contain maintenance parts (e.g. oil, filters, separators) that are periodically replaced. These used parts may contain substances that are regulated and must be disposed of in accordance with local, state, and federal laws and regulations. NOTE: Take note of the positions and locations of parts during disassembly to make reassembly easier.
English 7. Place element back in filter base. 8. Snap filter top to filter base. 9. Reassemble air filter to unit. Ensure exhaust outlet (N) points down. CAUTION: Risk of unsafe operation. Do not operate without air inlet filter ** The pump oil must be changed after the first 20 hours or operation. Thereafter, when using DEWALT synthetic compressor oil, change oil every 200 hours of operation or once a year, whichever comes first.
Compressor Pump Oil (Fig. 1) CHECKING OIL WARNING: Hot surfaces. Risk of burn. Aftercooler, pump head, and surrounding parts are very hot, do not touch (see the Hot Surfaces identified in Fig. 2). Allow compressor to cool prior to servicing. 1. Ensure engine ON/OFF switch (C) is in the OFF Position. 2. Place unit on a flat level surface. 3. Remove dipstick (L) and wipe clean. 4. Reinsert dipstick fully into oil fill port for a few seconds to allow oil to collect on the dipstick. 5.
GLOSSARY English Repairs To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should be performed by a DEWALT factory service center, a DEWALT authorized service center or other qualified service personnel. Always use identical replacement parts. CFM: Cubic feet per minute. SCFM: Standard cubic feet per minute; a unit of measure of air delivery. Full One Year Warranty PSI: Pounds per square inch; a unit of measure of pressure.
Troubleshooting Guide This section provides a list of the more frequently encountered malfunctions, their causes and corrective actions. The operator or maintenance personnel can perform some corrective actions, and others may require the assistance of a qualified DEWALT technician or your dealer. 17 English Problem Code Excessive air tank pressure-safety valve pops off ......................................................................1 Air leaks .....................................................
Troubleshooting Codes English CODE POSSIBLE CAUSE POSSIBLE SOLUTION 1 Unloader valve does not release pressure when air tank reaches blow-off pressure Unloader valve must be replaced. Contact a DEWALT factory service center or a DEWALT authorized service center. 2 Fittings are not tight Tighten fittings where air can be heard escaping. Check fittings with soapy water solution. DO NOT OVERTIGHTEN.
CODE POSSIBLE SOLUTION 13 Engine mounting nuts are loose Tighten mounting nuts. Torque engine mounting nuts to 12– 15 ft.-lbs. (16.3–20.3 Nm). WARNING: Risk of bursting. Excessive vibration could weaken the air tank and cause it to rupture or explode. Mounting screws must be kept tightened. 14 Engine or pump oil is low Add DEWALT synthetic compressor oil to pump. See Compressor Pump Oil under Maintenance. See engine's instruction manual for correct procedure. 15 Carbon build-up in pump.
English CODE POSSIBLE CAUSE POSSIBLE SOLUTION 22 Piston rings damaged or worn Contact a DEWALT factory service center or a DEWALT authorized service center 23 Cylinder or piston damaged or worn Contact a DEWALT factory service center or a DEWALT authorized service center 24 Compressor cylinder finish worn Contact a DEWALT factory service center or a DEWALT authorized service center 25 Water in pump oil Drain oil and refill pump with DEWALT synthetic compressor oil.
