DeWalt D55168 TYPE 1 Owner’s Manual

iNSTRUCTiON MANUAL

GUIDE D'UTILISATION MANUAL DE INSTRUCCIONES

D55168 Oil Free Portable Air Compressor

Compresseur d'air portatif sans huile Compresor de aire sin aceite port_til

tNSTRUCTIVO DE OPERACtON, CENTROS DE SERVICIO Y POLtZA DE GARANT{A. ADVERTENClA: LEASE ESTE INSTRUCTtVO ANTES

DE USAR EL PRODUCTO.

D55168 Air Compressor

A. On/Off Switch P Check Valve

B. Air Tank Pressure Gauge G. Safety Valve

C. Regulated Pressure Gauge H. Air Tank Drain VaLve

D. Pressure Regulator I. Pressure Switch E. Quick Connect

Pu_p/Moter Specifications

Voltage: SingLe Phase 120V

Minimum branch circuit requirement: 15 A Fuse Type: Time delay

Specifncations

MODEL D55168 WEIGHT 88 Ibs. (39.92 kg)

HEIGHT 41.75" (1060.5mm) WIDTH 19.0" (4826 mm) LENGTH 21.25 (539.8 ram) AIRTANK CAPACITY (GALLONS) 15 Gallon (56.8 fiters) APPROX CUT-_NPRESSURE 160 PSI (1103.2 kPa)

APPROX. CUT-OUT PRESSURE 200 PSI (1379.0 kPa) SCFM @ 90 PSI (620.5 kPa_ 5._

FIG. 1

Definitions: Safety Guidelines

Tile definitions below describe the level of severity

for each signal word. Please read the manual and

pay attention to these symbols.

_,DANGER: Indicates an imminently hazardous

situation which, if not avoided, will result in death

or serious injury.

_,WARNING: Indicates a potentially" hazardous

situation which, finer avoided, could result in death

or serious injury.

_CAUTION: Indicates a potentially hazardous

situation which, if net avoided, may result in minor

or moderate injury. CAUTION: Used without the safety alert symbol

indicates a potentially hazardous situation which, if

net avoided, may result in property damage.

IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY DEWALT TOOL, CALL US TOLL FREE AT:

1-800-4-BEWALT (1-800-433-9258)

Important Safety instructions

_&WARNING: Do not operate this unit until you read and understand

this instruction manual for safety, operation and maintenance instructions.

_,WARNING: Some dust created by power sanding sawing, grinding, drilling, and other construction activities contains chemicals known (to the State of California) to cause cancer, birth defects or other reproductive harm. Some example of these chemicals are:

• lead from lead-based paints

• crystalline silica from bricks and cement and other masonry

products

• arsenic and chromium from chemically-treated lumber

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals:

work in a weft ventilated area, and work with approved safety equipment, always wear OSHA/MSHA/NIOSH approved, properly

fitting face mask or respirator when using such tools. When using air tools, basic safety precautions should always be

followed to reduce the risk of of personal injury _,WARNING: This product contains chemicals, including lead, known to the State of California to cause cancer, and birth

defects or other reproductive harm. Wash hands after handling.

SAVE THESE INSTRUCTION

_DANGER: RISK OF EXPLOSION OR FIRE

WHAT CAN HAPPEN HOWTO PREVENT IT

* Ifelectrical sparks from

compressor come into con-

tact with flammabte vapors, they may ignite, causing fire

or explosion.

• If spraying flammable materi- als, locate compressor at

least 20 feet (6.1 m) away

from spray area. An addi- tional length of hose may be required.

• Store flammable materials in

a secure location away from compressor.

,&DANGER: RISK TO BREATHING (ASPHYXIATIOI,,

WHAT CAN HAPPEN HOWTO PREVENT I"

n_ve

_ _ _: _fe__

_nj_i i_

• Unattended operation of this product could result in

personal injury or property

damage. Toreduce the risk of fire, do not allow the

compressor to operate unat- tended

" Always remain in attendance

with the product when it is operating.

• Always turn off and unplug unit when not in use.

• Sprayed materials such as paint, paint solvents, paint remover, insecticides, 'weed killers, may contain harmful vapors and poisons.

• Work Jnan area with good cross ventilation. Read and

follow the safety instructions provided on the label or safety

data sheets for the materials you are spraying. Always use

certified safety equipment: OSHA/MSHAZNIOSH

respiratory protection designed

for use with your specific application.

WARNING: RISK OF BURSTING

WHATCANHAPPEN

• Failure to properly drain condensed water from

air tank, causing rust and thinning of the steel air tank.

• Unauthorized modifications to the safety valve or any other

components which control air tank pressure.

HOWTO PREVENT IT

* Drain air tank daily or after

each use. tf air tank develops a leak, replace it immediate{y

with a new air tank or replace the entire compressor.

° The air tank is designed

to withstand specific operating pressures. Never

make adjustments or parts substitutions to alter the factory

set operating pressures.

,_WARNING: RISK OF ELECTRICAL SHOCK

WHAT CAN HAPPEN

• Your air compressor is powered by electricity. Like any other electrically powered device, tf it is not used properly it may cause

electric shock.

HOWTO PREVENTIT

• Never operate the compressor outdoors when it is raining or

in wet conditions.

, Never operate compressor

with protective covers

removed or damaged.

• ElectricalGrounding: Failuretoprovideadequate groundingtothisproduct couldresultinseriousinjury

or death from electrocution. See Grounding

instructions under

Installation.

,&WARNING: RISK FROM FLYING OBJECTS

WHAT CAN HAPPEN H_WTO PREVENTIT

• Make certain that the electrical circuit to which the

compressor isconnected provides proper electrical grounding, correct voltage and adequate fuse protection.

_&WARNING: RISK OF HOT SURFACES

WHAT CAN HAPPEN HOWTO PREVENT IT

* Touching exposed metal such

as the compressor head, engine head, engine exhaust or outlet tubes, can result in

serious burns.

._WARNING: RISK FROM MOVING PARTS

WHAT CAN HAPPEN HOWTO PREVENT IT

. Never touch any exposed

metal parts on compressor during or immediately after operation. Compressor will

remain hot for several minutes after operation.

• Do not reach around protective shrouds or attempt

maintenance until unit has been allowed to coot

• Attempting to operate compressor with damaged or missing parts or attempting

to repair compressor with

protective shrouds removed

can expose you to moving

parts and can result in

serious injury.

,&WARNING: RISK OF UNSAFE OPERATION

WHAT CAN HAPPEN HOWTO PREVENTIT

• Any repairs required on this product should be performed by a DEWALT factory service

center or a DEWALT authorized service center.

,&WARNING: RISK OF FALLING

WHAT CAN HAPPEN HOWTO PREVENTIT

• A portable compressor can fall from a table,

workbench, or roof causing damage to the compressor

and could result in serious injury or death to the

operator.

,& CAUTION: RISK FROM NOISE

WHAT CAN HAPPEN HOW TO PREVENT IT

• Always operate compressor in a stable secure position to

prevent accidental movement of the unit. Never operate

compressor on a roof or other elevated position. Use

additional air hose to reach high locations

SAVE THESE INSTRUCTIONS

FOR FUTURE USE

FEATURES

ON!OFF SWITCH Place this switch (A) in the ON position to provide

automatic power to the pressure switch and OFF to remove power at the end of each use.

PRESSURE SWITCH The pressure switch (I) automatically starts the

motor when the air tank pressure drops below the factory set cut-in pressure. It stops the motor when the air tank

pressure reaches the factory set cut-out pressure. SAFETY VALVE

If the pressure switch does not shut off the air compressor at its cut-out pressure setting, the safety valve (G) witl protect against high pressure by popping out at its factory set pressure (slightly

higher than the pressure switch cut-out setting). CHECK VALVE

When the air compressor is operating, the check valve (F) is open, allowing compressed air to enter the air tank. When the air compressor reaches cut-out pressure, the check valve closes,

allowing air pressure to remain inside the air tank. TANK PRESSURE GAUGE

The tank pressure gauge (B) indicates the reserve air pressure in the tank.

OUTLET PRESSURE GAUGE The outlet pressure gauge (C) indicates

the air pressure available at the outtet side of the regulator. This pressure is

controlled by the regulator and is always tess than or equat to the tank pressure.

REGULATOR

The regulator (D) controls the air pressure shown on the outlet

pressure gauge. Putt the knob out and turn clockwise to increase pressure and counterclockwise to decrease pressure. When the

desired pressure is reached push knob in to lock in place.

UNIVERSAL QUICK CONNECT BODIES

The universal Quick Connect body (E) accepts the three most

popular styles of Quick Connect plugs: Industrial, automotive, and ARC. One hand push-to-connect operation makes connections simpte and easy.

DRAIN VALVE The drain valve (H) is tocated at the base of the air

tank and is used to drain condensation at the end of each use. See Draining Air Tank under

Maintenance.

COOLING SYSTEM H This compressor contains an advanced design cooling system.

It is normal for this fan to blow air through the vent holes in large

amounts. The cooling system is working when air is expelled. AIR COMPRESSOR PUMP

The pump compresses air into the air tank. Working air is not

availaMe until the compressor has raised the air tank pressure

above that required at the air outlet.

PRESSURE RELEASE VALVE The pressure release valve iocated on the side of the pressure

switch, is designed to automatically release compressed air from the compressor head and the outtet tube when the air compressor

reaches "cut-out" pressure or is shut off.The pressure release valve

atlows the motor to restart freely. When the motor stops running,

air will be heard escaping from this valve for a few seconds. No air should be heard leaking when the motor is running or after the unit

reaches "cut-out" pressure.

MOTOROVERLOADPROTECTOR Themotorhasamanualthermaloverloadprotector.Ifthemotor

overheatsforanyreason,theoverloadprotectorwillshutoffthe motor.Themotormustbeailowedtocooldownbeforerestarting.

Torestart:

1.SettheOn/Auto/OfflevertoOFFandunplugunit.

2.Allowthemotortocoot.

3.Plugthepowercordintothecorrectbranchcircuitreceptacle.

4.SettheOn/Auto/OfflevertoON/AUTOposition.

INSTALLATION

Assembly

INSTALLING HOSES _WARNING: Risk of unsafe operation. Firmly grasp hose in hand

when installing or disconnecting to prevent hose whip.

1. Ensure regulated pressure gauge reads O PSI (OkPa).

2. Grasp the hose at the Quick Connect plug and push the plug into the Quick Connect body (E). Coupler will snap intoplace.

3 Grasp the hose and pull to ensure coupier is seated DISCONNECTING HOSES _.WARNING: Risk of unsafe operation. Firmly grasp hose in hand

when installing or disconnecting to prevent hose whip.

1. Ensure regulated pressure gauge reads O PSI (OkPa).

2. Pull coupler on Quick Connect body back to reIease Quick Connect plug on hose.

Grounding Instructions

_,WARNING: Risk of Electrical Shock. In the event of a short

circuit, grounding reduces the risk of shock by providing an escape wire for the electric current. This air compressor must be properly grounded.

The portable air compressor is equipped with a cord having a grounding wire with an appropriate grounding plug.

1. The cord set and plug (M)with this unit i-#T', contains a grounding pin (L). This plug M

MUST be used with a grounded outlet (K).

IMPORTANT: The outlet being used must be installed and grounded in accordance

with all local codes and ordinances.

2. Ensure the outlet being used has the same configuration as the grounded plug. DO NOT USE AN ADAPTER.

3. Inspect the plug and cord before each use. Do not use if there are signs of damage.

4. If these grounding instructions are not completely understood, or if in doubt as to whether the compressor is properly grounded, have the installation checked by a qualified electrician.

_,DANGER: Risk of Electrical Shock. IMPROPER GROUNDING

CAN RESULT tN ELECTRICAL SHOCK.

Do not modify the plug provided, ff it does not fit the available outlet, a correct outlet should be instafled by a qualified

electrician. Repairs to the cord set or plug MUST be made by a quafified

electrician.

Extension Cords

If an extension cord must be used, be sure it is:

• a 3-wire extension cord that has a 3-blade grounding plug, and a 3-slot receptacle that wilt accept the plug on the product

* ingoodcondition * nolongerthan50feet

. 12gauge(AWG)orlarger.(Wiresizeincreasesasgaugenum-

berdecreases.10AWGand8AWGmayalsobeused.DONOT USE14OR16AWG.)

CAUTION: The use of an undersized extension cord will cause volt- age to drop resulting in power loss to the motor and overheating.

Instead of using an extension cord, increase the working reach of the air hose by attaching another length of hose to its end. Attach additional lengths of hose as needed.

Voltage and Circuit Protection

Refer to the Voltage and Minimum Branch Circuit Requirements under Pump/Motor Specifications.

_.CAUTION: Certain air compressors can be operated on a

15 amp circuit if the following conditions are met.

. Voltage supply to circuit must compty with the National Electrical

Code.

* Circuit is not used to supply any other electrical 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 US.

If any of the above conditions cannot be met, or ff operation of the compressor repeatedly causes interruption of the power, it may be necessary to operate it from a 20 amp circuit tt is not necessary to change the cord set.

Compatibility

NOTE: Always use an air _ine filter to remove moisture when spraying paint.

Location

Ptace the air compressor in a clean, dry and v!eli ventilated area at least 12" (30 mm) away from the wail or other obstructions that will interfere with the flow of air. Keep the compressor away from areas that have dirt and/or volatile fumes in the atmosphere. These impurities may clog the intake filter and valves, causing inefficient operation.

_i_WARNING: The air compressor pump and shroud are designed to allow for proper cooling. The ventilation openings on the compressor

are necessary to maintain proper operating temperature. Do not place rags or other containers on or near these openings.

Place the air compressor on a fiat surface resting on the rubber feet.

ELECTRICAL Refer to all safety instructions before using unit. Observe extension

cord safety instructions if necessary. Always move the On/Off switch (A) to the OFF position before removing the plug from the

outlet.

TRANSPORTING

When transporting the compressor in a vehicle, trailer, etc., make sure the tank is drained and the unit is secured with straps to prevent tipping. Use care when driving to prevent tipping the unit over in the vehicle. Damage can occur to the compressor or surrounding items if the compressor is tipped.

LIFTING Always use two people when lifting and liftfrom

the recommended lift points (O). DO NOT lift by wheels or shroud.

Moving

_CAUTION: The wheels and handle do not provide adequate clearance, stabitity, or

support for pulling the unit up and down stairs or steps. The unit must be lifted or pushed up a ramp.

1. Grasp handle of compressor and tilt compressor back to rest on wheels.

_2_WARNING: Risk of Unsafe Operation. Ensure proper footing and use caution when roiling compressor so that unit does net tip or

cause loss of balance.

2 When location is reached slowly lower compressor to ground.

Always store compressor in a vertical position resting on the rubber bumpers and wheels.

PREPARATION FOR USE Pre=Start Checklist (Fig. I)

1 Ensure the On/Off switch (A) is in the OFF position.

2. Plug the power cord into the correct branch circuit receptacle See Voltage and Circuit Protection under Installation.

3 Ensure air tank is drained, see Draining Air Tank under

Maintenance.

4 Ensure the drain valve (H) is closed. 5 Ensure safety valve (G) is functioning properly, see Checking

Safety Valve under Maintenance.

6. Pull the knob (D) out and turn clockwise to increase pressure and counterclockwise to decrease pressure. When the desired pressure is reached push knob in to lock in place.

7. Attach hose and accessories

CAUTION: Risk of unsafe operation. Compressed air from the unit may contain water condensation and oil mist. Do not spray unfiltered air at an item that could be damaged by moisture. Some air tools and accessories may require filtered ai_ Read the instructions for the air

tools and accessories. _WARNING: Risk of Bursting. Too much air pressure causes a

hazardous risk of bursting Check the manufacturer's maximum pressure rating for air tools and accessories. The regulator outlet pressure must never exceed the maximum pressure rating.

Initial Set.up (Fig. 1)

WARNING: Do not operate this unit until you read and understand this instruction manual for safety, operation and maintenance

instructions.

BREAK-IN PROCEDURE _WARNING: Risk of property damage. Serious damage may result ff

the following break-in instructions are not closely fellowed. This procedure is required before the air compressor is put into

service for the first time and when the check valve or a compressor pump/motor has been replaced.

1. Ensure the On/Off switch (A) is in the OFF position.

NOTE: If hose is not connected to Quick Connect body, pulI coupler back until it clicks to prevent air from escaping through the quick

connect.

2. Plug the power cord into the correct branch circuit receptacle. See Voltage and Circuit Protection under Installation.

3. Open the drain valve (turn lever counter-clockwise) fuIly to permit air to escape and prevent air pressure build up in the air tank during the break-in period.

4. Move the On/Off switch to the ON position. The compressor will start.

5. Run the compressor for 15 minutes.

6. After 15 minutes, close the drain valve by turning lever clockwise. The tank will fill to cut-out pressure and the motor will stop.

7. Compressed air will be available until it is used or bled off

OPERATING PROCEDURES Start-up (Fig. I)

1. Follow Pre-Start Checklist under Preparation for Use.

2. Move the On/Off switch to the ON position and allow tank pressure to build. Motor will stop when tank pressure reaches cut-out pressure

&CAUTION: Risk of unsafe operation. Compressed air from the

unit may contain water condensation and eft mist. Do not spray until- tered air at an item that could be damaged by moisture. Some air operated tools or devices may require filtered air. Read the instruc-

tions for the air tool or device.

3. Adjust regulator (D) to desired setting. See Regulator under

Features.

Shut-down (Fig. I)

1. Move On/Off switch (A) to the OFF position. NOTE: If finished using compressor, follow Steps 2 - 6.

NOTE: When the unit has been turned off, it is normal to hear a short hiss of air being released.

2. Turn regulator knob (D) counterclockwise until fully closed. Ensure regulated pressure gauge reads 0 PSI (0 kPa).

3. Remove hose and accessory.

_, WARNING: Risk of unsafe operation. Firmly grasp air hose in hand

when installing or disconnecting to prevent hose whip.

4. Drain the air tank, see Draining Air Tank under Maintenance. Ensure airtank pressure gauge reads OPSi (0 kPa).

_t,WARNING: Risk of bursting. Drain air tank daily. Water will

condense in air tank. If net drained, water will corrode and weaken the air tank causing a risk of air tank rupture.

5. Allow the compressor to coot down.

6. Wipe air compressor clean and store in a safe, non-freezing area.

MAINTENANCE

The following procedures must be followed 'when maintenance or service is performed on the air compressor.

1. Ensure On/Off switch is in the OFF position.

2. Remove air compressor plug from outlet.

3. Drain air tank.

4. Allow air compressor to coot down before starting service.

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 federat taws and regulations.

NOTE: Take note of the positions and locations of parts during disassembly to make reassembly easier.

NOTE: Any service operations not included in this section shoutd be performed by a DEWALT factory service center or a DEWALT

authorized service center

Maintenance Chart

3efore Daily Every

or after

_ach each 100 Yearly _se use hours

Check Safety Valve • Drain Tank O Air Filter O _

Air compressor pump intake and exhaust valves O

1- more frequent in dusty or humid conditions

Checking Safety Valve

_&WARNING: Risk of bursting. If the safety valve does not work propedy_ over-pressurization may occu_ causing air tank rupture or

an explosion.

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 (0 kPa). tf 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 operation. Air tanks contain high

pressure air. Keep face and other body parts away from outlet of drain. Use safety glasses when draining as debris can be kicked up

into face. _,WARNING: Risk from noise. Use ANSI S 12.6 ($3. fg) ear protection as air flow noise is loud when draining.

NOTE: All compressed air systems generate condensate that accumulates in any drain point (e.g. tanks, filter, aftercoolers,

dryers). This condensate contains lubricating oit and/or substances which may be regulated and must be disposed of in accordance with local, state, and federal laws and regulations.

1. Ensure On/Off switch (A) is in the OFF position.

2. Move compressor into an inclined position so drain valve (H) is at the lowest point (this will assist in removing moisture_ dirt_ etc. from air tanks)

CAUTION: Risk of Property Damage. Drain water from air tank may

contain off and rust which can cause stains.

3. Place a suitable container under the drain valve to catch discharge.

4. Grasp black lever on drain valve

5. Slowly rotate lever to gradually bleed air from air tank.

6. When air tank pressure gauge reads 10 PSI (275.1 kPa), rotate valve to the fully open position.

7. Close drain valve when finished.

Checking Air Filter Element (Fig. 1)

_WARNINO: Hot surfaces. Risk of burn. Outlet tube 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 ON/OFF switch (A) is in the OFF Position.

2. Allow unit to cool.

3. Remove filter cover (N) from base.

4. Remove etement from filter base...

5. Place new element back in filter base. Purchase replacement parts

from your Iocai dealer or authorized service center. Always use identical replacement parts

6.Snapfiltercovertofilterbase.

_,CAUTION:Risk of unsafe operation. Do not operate without air

inlet filter

AIR COMPRESSOR PUMP INTAKE AND

EXHAUST VALVES

Once a year have a Trained Service Technician check the air compressor pump intake and exhaust valves.

ACCESSORIES

Recommended accessories for use with your toot are available for purchase from your local dealer or authorized service center.

if you need assistance in locating any accessory for your tool, please contact DEWALT Industrial Toot Co., 701 East Joppa Road,

BaItimore_ MD 21286_ call 1-800-4-DEWALT (1-800-433-9258) or visit our website wvTw.dewaIt.com.

_&CAUTION: The use of any other accessory" not recommended for

use with this tool could be hazardous. Use only accessories rated equal to or higher than the rating of the air compressor.

SERVICE INFORMATION

Please have the following information available for all service catls: Model Number Serial Number

Date and Place of Purchase

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.

Full One Year Warranty

DEWALT heavy duty industrial tools are warranted for one year from

date of purchase. We will repair, without charge, any defects due to faulty materials or workmanship. For warranty repair information,

calt 1-80O-4-DEWALT. This warranty does not apply to accessories or damage caused where repairs have been made or attempted by

others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.

LATIN AMERICA: This warranty does not apply to products sold in Latin America. For products sold in Latin America, see country specific warranty information contained either in the packaging, call the local company or see website for warranty information.

FREE WARNING LABEL REPLACEMENT: If your warning labels become illegible or are missing, calt 1-8O0-4-DEWALT for a free replacement.

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. kPa (kilopaseal): Metric pressure measurement. 1 kilepascaI equal 1000 pascaIs.

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 Undepwriters Laboratories Standards for Safety.

Cut-In Pressure: While the motor is off, air tank pressure drops when accessory is used. When the tank pressure drops to a certain tow level the motor will restart automatically The low pressure at which the motor automatically restarts is called cut-in pressure

Cut-Out Pressure: When an air compressor is turned on and begins to run, air pressure in the air tank begins to build, tt builds to a certain high pressure before the motor automatically shuts off, protecting your air tank from pressure higher than its capacity. The high pressure at which the motor shuts off is called cut-out pressure.

Branch Circuit: The circuit carrying electricity from electrical panet to outlet. Duty Cycle: This air compressor pump is capable of running continuously. However, to prolong the life of your air compressor, it is

recommended that a 50%-75% average duty cycle be maintained; that is, the air compressor pump should not run more than 30- 45 minutes in any given hour.

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.

Problem Code

Excessive air tank pressure-safety valve pops off ...................................................................... 1,2

Air leaks .................................................................................................................................... 3

Air leaks in air tank or at air tank welds .................................................................................... 4

Air leaks between head and valve plate .................................................................................... 5

Air leaks from safety valve ......................................................................................................... 6

Knocking Noise .......................................................................................................................... 6

Pressure reading on the regulated pressure gauge drops when an accessory is used ........... 7

Compressor is not supplying enough air to operate accessories .............................................. 8,9,10,11,12,23

Regulator knob has continuous air leak .................................................................................... 13

Regulator will not shut off air outlet ........................................................................................... 13

Motor will not run ....................................................................................................................... 6,14,15,16,17,18,19,26,21

Squealing Sound ....................................................................................................................... 22

Troubleshootin( Codes

CODE POSSIBLE CAUSE

POSSIBLE SOLUTION

Pressure switch cut-out too high

Contact a DEWALT factory service center or a DEWALT authorized service center.

CODE POSSIBLE CAUSE POSSIBLE SOLUTION

4 Defective air tank

6 Defective safety valve Operate safety valve manually by pulling on ring. tf vatve still

Air tank must be replaced. Do not repair the leak. &WARNING: Risk of bursting. Do not drill into, weld or otherwise modify air tank or it will weaken. The air tank can

rupture or explode.

leaks, it must be replaced.

12 Air leaks Tighten fittings.

14 Motor overload protection switch has tripped Refer to Motor Overload Protection under Features.

Prolonged excessive use of air

Hole in air hose10

Decrease amount of air usage•

Replace air hose.

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