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20

English

CoDe

PossIble CAuse

PossIble solutIon

15

Tank pressure exceeds pressure switch cut-in 
pressure

Motor will start automatically when tank pressure drops below 
cut-in pressure of pressure switch.

16

Extension cord is wrong length or gauge

Check for proper gauge wire and cord length. Refer to the 
extension Cords paragraph in the Installation section.

17

Loose electrical connections

Contact a D

e

WALT factory service center or a D

e

WALT autho-

rized service center.

18

Possible defective motor

Contact a D

e

WALT factory service center or a D

e

WALT autho-

rized service center.

19

Paint spray on internal motor parts

Contact a D

e

WALT factory service center or a D

e

WALT authorized 

service center. Do not operate the compressor in the paint spray 
area. See flammable vapor warning.

20

Fuse blown, circuit breaker tripped

  1. Check fuse box for blown fuse and replace as necessary. 

Reset circuit breaker. Do not use a fuse or circuit breaker with 
higher rating than that specified for our particular branch cir-
cuit.

  2. Check for proper fuse. You should use a time delay fuse.
  3. Check for low voltage conditions and/or proper extension 

cord.

  4. Disconnect the other electrical appliances from circuit or oper-

ate the compressor on its own branch circuit.

21

Restricted air intake filter

Clean or replace air intake  filter. Do not operate the air 
compressor with the filter removed. Refer to the Air filter 
paragraph in the Maintenance section.

22

Defective pilot valve

Replace pilot valve. Contact a D

e

WALT factory service center or a 

D

e

WALT authorized service center.

Summary of Contents for D55371

Page 1: ...ción 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 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 ...

Page 2: ...lot valve blow off 160 psi SCFM 100 psi 4 6 Noise Level 75 dBA Tested per ISO 1217 Tested per ISO 3744 D55371 Air Compressor H Pressure Switch I Cord Wrap J Air Filter K Tank Pressure Gauge L Auto Off O Switch M Pilot Valve N Dual Voltage Control Declared Noise Emission Values per ISO 3744 Noise EmissionValues Sound Pressure Level LpA 75 0 dBA re 20μPA Uncertainty in the Sound Pressure Level KpA 3...

Page 3: ...erstand this instruction manual for safety operation and maintenance instructions WARNING This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling WARNING Some dust contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm such as asbestos and lead in le...

Page 4: ...t The compressed air directly from your compressor is not safe for breathing The air stream may contain carbon monoxide toxic vapors or solid particles from the air tank Breathing these contaminants can cause serious injury or death Never use air obtained directly from the compressor to supply air for human consumption The compressor is not equipped with suitable filters and in line safety equipme...

Page 5: ...ow to prevent it Failure to properly drain condensed water from air tank causing rust and thinning of the steel air tank Drain air tank daily or after each use If air tank develops a leak replace it immediately with a new air tank or replace the entire compressor Modifications or attempted repairs to the air tank Never drill into weld or make any modifications to the air tank or its attachments Ne...

Page 6: ... unqualified personnel can result in serious injury or death by electrocution Any electrical wiring or repairs required on this product should be performed by a DeWALT factory service center or a DeWALT authorized service center in accordance with national and local electrical codes Electrical Grounding Failure to provide adequate grounding to this product could result in serious injury or death f...

Page 7: ...ol WARNING Risk from Moving Parts What can happen How to prevent it Moving parts such as the pulley flywheel and belt can cause serious injury if they come into contact with you or your clothing Never operate the compressor with guards or covers which are damaged or removed Keep your hair clothing and gloves away from moving parts Loose clothes jewelry or long hair can be caught in moving parts Ai...

Page 8: ...prevent it Under some conditions and duration of use noise from this product may contribute to hearing loss Always wear certified safety equipment ANSI S12 6 S3 19 hearing protection WARNING Risk of Unsafe Operation What can happen How to prevent it Unsafe op er a tion of your air compressor could lead to se ri ous in ju ry or death to you or others Review and understand all instructions and warni...

Page 9: ...tank Tank Pressure Gauge The tank pressure gauge K indi E F D K cates the reserve air pressure in the tank REGULATED Pressure Gauge The regulated pressure gauge D indicates the air pressure available at the outlet side of the regulator This pressure is controlled by the regulator and is always less than or equal to the tank pressure Regulator The regulator F controls the air pressure shown on the ...

Page 10: ...ng in the stop start mode The mode of operation is determined by the amount of time the compressor will be required to supply air If the demand for air is infrequent then the unit should be operated in the stop start mode to minimize unnecessary run time and to save energy If there is a frequent or extended demand for air and or the unit is located in a remote area where access to the compressor i...

Page 11: ...o 230 volts the 115 230 dual control switch can not be placed in the 115 volt position until the cord plug is replaced with a UL CSA listed cord plug suitable for 115 volts and the rated amps of the compressor See Motor Specifications WARNING Do not operate this unit until you read and understand this instruction manual for safety operation and maintenance instructions Grounding Instructions Warni...

Page 12: ...al needs Extension cords comply with specifications Circuit is equipped with a 15 amp circuit breaker or 15 amp time delay fuse NOTE If compressor is connected to a circuit protected by fuses use only time delay fuses Time delay fuses should be marked D in Canada and T in the U S If any of the above conditions cannot be met or if operation of the compressor repeatedly causes interruption of the po...

Page 13: ...on under Installation 3 Ensure air tank is drained see Draining Air Tank under Maintenance 4 Ensure the drain valve B is closed 5 Ensure safety valve G is functioning properly see Checking Safety Valve under Maintenance 6 Pull the regulator knob F out and turn counterclockwise until fully closed Ensure regulated pressure gauge reads 0 psi Push knob in to lock in place 7 Attach hose and accessories...

Page 14: ...pilot valve reset pressure is reached A slight air noise may be heard while the air is being unloaded through the pump head If compressor shuts off contact a DeWALT service center or call 1 800 4 DeWALT 1 800 433 9258 for assistance Note For proper operation the pilot valve blow off pressure must be below the pressure switch cut out pressure 4 Adjust regulator F to desired setting See Regulator un...

Page 15: ...ction CAN CSA Z94 3 with side shields when using the compressor Before starting compressor pull the ring on the safety valve to make sure that the safety valve operates freely NOTE Ring may be difficult to pull when air tank pressure is at 0 psi If the valve is stuck or does not operate smoothly it must be replaced with the same type of valve Draining Air Tank Fig 1 Warning Risk of unsafe operatio...

Page 16: ...cating any accessory for your tool please contact DeWALT Industrial Tool Co 701 East Joppa Road Baltimore MD 21286 call 1 800 4 DeWALT 1 800 433 9258 or visit our website www dewalt com Service Information Please have the following information available for all service calls Model Number ____________ Serial Number _________________ Date and Place of Purchase ______________________________ Repairs ...

Page 17: ...TISSEMENT Glossary CFM Cubic feet per minute SCFM Standard cubic feet per minute a unit of measure of air delivery PSI Pounds per square inch a unit of measure of pressure Code Certification Products that bear one or more of the following marks UL CUL ETL CETL have been evaluated by OSHA certified independent safety laboratories and meet the applicable Standards for Safety UL is a registered trade...

Page 18: ...gulator knob has continuous air leak 13 Regulator will not shut off air outlet 13 Motor will not run 11 14 15 16 17 18 19 20 24 Motor shuts off when operating in constant run mode 22 25 Continuous air leak at pressure relief tube 26 27 Troubleshooting Codes Code possible cause POSSIBLE SOLUTION 1 Pressure switch does not shut off motor when com pressor reaches cut out pressure Pilot valve does not...

Page 19: ...egulator as instructed in Regulator under Features if pressure drop is excessive NOTE Adjust the regulated pressure under flow conditions while accessory is being used 8 Prolonged excessive use of air Decrease amount of air usage 9 Compressor is not large enough for accessory Check the accessory air requirement If it is higher than the CFM or pressure supplied by your air compressor a larger com p...

Page 20: ...orized service center Do not operate the compressor in the paint spray area See flammable vapor warning 20 Fuse blown circuit breaker tripped 1 Check fuse box for blown fuse and replace as necessary Reset circuit breaker Do not use a fuse or circuit breaker with higher rating than that specified for our particular branch cir cuit 2 Check for proper fuse You should use a time delay fuse 3 Check for...

Page 21: ...t valve knob clockwise until it stops 25 Defective pressure switch Replace pressure switch Contact a DeWALT factory service center or a DeWALT authorized service center 26 Defective check valve Replace check valve Contact a DeWALT factory service center or a DeWALT authorized service center 27 Defective pressure relief tube Replace pressure relief tube Contact a DeWALT factory service center or a ...

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