DeWalt Emglo D55152 User manual

D55151, D55152, D55153, D55155
Contractor’s Electric 4 Gallon Hand Carry Air Compressor
Compresseurs d’air portatifs électriques de 4 gallons de classe entrepreneur
Compresor de aire portátil elèctrico de 4 galones para contratistas
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

2
English
A. On/Off Switch
B. Air Tank Pressure Gauge
C. Regulated Pressure Gauge
D. Pressure Regulator
E. Quick Connects (if equipped)
F. Check Valve
G. Safety Valve
H. Air Tank Drain Valve
I. Power Cord Wrap
J. Pressure Switch
K. Pump Oil Dipstick
L. Pump Oil Drain Plug
M. Motor Reset
N. Air Intake Filter
Air Compressor
C
NOT A
STEP D
B
E
K
L
J
D
E
L
M
I
F
BC
A
G
A
H
K
F
M
N
N
J
G
FIG. 1

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English
Specifications
MODEL D55151 D55152 D55153 D55155
WEIGHT 56 lbs. (25.4 kg) 65 lbs. (29.5 kg) 58 lbs. (28.3 kg) 61 lbs. (27.7 kg)
HEIGHT 16.75" (425.5 mm) 16.0" (406.4 mm) 16.75" (501.7 mm) 12.5" (317.5 mm)
WIDTH 18.0" (457.2 mm) 18.0" (457.2 mm) 18.0" (457.2 mm) 21.75" (552.5 mm)
LENGTH 15.0 (381 mm) 18.0" (457.2 mm) 15.0 (381 mm) 21.75" (552.5 mm)
AIR TANK CAPACITY (GALLONS) 4.0 (15.1 liters) 4.0 (15.1 liters) 4.0 (15.1 liters) 4.0 (15.1 liters)
APPROX CUT-IN PRESSURE 95 PSI (655 kPa) 95 PSI (655 kPa) 95 PSI (655 kPa) 100 PSI (689.5 kPa)
APPROX. CUT-OUT PRESSURE 125 PSI (861.8 kPa) 125 PSI (861.8 kPa) 125 PSI (861.8 kPa) 125 PSI (861.8 kPa)
SCFM @ 100 PSI (689.5 kPa) 3.2 3.8 3.8 4.5
MOTOR 1.1 hp (continuous) 1.1 hp (continuous) 1.1 hp (continuous) 1.2 hp (continuous)
Volts/Amps/Hertz 120V/12.5 A/60 Hz. 120V/14 A/60 Hz. 120V/14 A/60Hz. 120V/15 A/60Hz.
RPM 3450 3450 3450 3450
Minumum Branch Circuit
Requirement 15 Amp 15 Amp 15 Amp 15 Amp
PUMP OIL CAPACITY 6 oz. (177.4 ml) 12 oz. (354.9 ml) 12 oz. (354.9 ml) 4 oz. (118.3 ml)
DUTY CYCLE 5 MINUTES ON / 5
MINUTES OFF 5 MINUTES ON / 5 MINUTES OFF 5 MINUTES ON / 5 MINUTES OFF 5 MINUTES ON / 5 MINUTES OFF

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Definitions: Safety Guidelines
The 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, if not avoided, could result in death
or seriousinjury.
CAUTION: Indicates a potentially hazardous
situation which,if not avoided,may result in minor or
moderateinjury.
CAUTION: Used without the safety alert symbol
indicates a potentially hazardous situation which, if
not avoided, may result in propertydamage.
PUMP
CYLNDER
AND HEAD
Hot Surfaces
FIG. 2
OUTLET TUBE CHECK
VALVE CHECK
VALVE
OUTLET TUBE
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT
THIS OR ANY
DeWALT
TOOL, CALL US TOLL FREE AT:
1-800-4-D
e
WALT (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 well ventilated area,and work with approved
safety equipment, always wear OSHA/MSHA/NIOSH approved,
properly tting 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

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DANGER: RISK OF EXPLOSION OR FIRE
WHAT CAN HAPPEN HOW TO PREVENT IT
• It is normal for electrical
contacts within the motor
and pressure switch
to spark.
• Always operate the
compressor in a well
ventilated area free of
combustible
materials, gasoline,
or solvent vapors.
• If electrical sparks from
compressor come into
contact with flammable
vapors, they may ignite,
causing fire or explosion.
• If spraying flammable
materials, locate compressor
at least 20 feet (6.1 m)
away from spray area. An
additional length of hose may
be required.
• Store flammable materials
in a secure location away
from compressor.
• Restricting any of the
compressor ventilation
openings will cause
serious overheating and
could cause fire.
• Never place objects against
or on top of compressor.
• Operate compressor in
an open area at least 12"
(30.5 cm) away from any
wall or obstruction that would
restrict the flow of fresh air to
the ventilation openings.
• Operate compressor in a
clean, dry well ventilated
area. Do not operate
unit indoors or in any
confined area.
• Unattended operation of
this product could result in
personal injury or property
damage. To reduce
the risk of fire, do not
allow the compressor to
operate unattended.
• Always remain in attendance
with the product when it
is operating.
• Always turn off and unplug
unit when not in use.

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DANGER: RISK TO BREATHING (ASPHYXIATION)
WHAT CAN HAPPEN HOW TO PREVENT IT
• 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
contaminant's can cause
serious injury or death.
• Air obtained directly from the
compressor should never
be used to supply air for
human consumption. In order
to use air produced by this
compressor for breathing,
suitable filters and in-line
safety equipment must be
properly installed. In-line
filters and safety equipment
used in conjunction with the
compressor must be capable
of treating air to all applicable
local and federal codes prior
to human consumption.
• Sprayed materials such
as paint, paint solvents,
paint remover, insecticides,
weed killers, may
contain harmful vapors
and poisons.
• Work in an 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/MSHA/
NIOSH respiratory protection
designed for use with your
specific application.
DANGER: RISK OF INJURY OR PROPERTY DAMAGE WHEN
TRANSPORTING OR STORING
WHAT CAN HAPPEN HOW TO PREVENT IT
• Oil can leak or spill
and could result in fire
or breathing hazard;
serious injury or death
can result. Oil leaks will
damage carpet, paint or
other surfaces in vehicles
or trailers.
• Always place compressor
on a protective mat when
transporting to protect
against damage to vehicle
from leaks. Remove
compressor from vehicle
immediately upon arrival at
your destination. Always keep
compressor level and never
lie on its side.
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. To
nd your state pressure vessels inspector, look under the Division
of Labor and Industries in the government section of a phone
book or call 1-800-4-
DeWALT
forassistance.
The following conditions could lead to a weakening of the air tank,
and result in a violent air tank explosion:

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WHAT CAN HAPPEN HOW 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.
Never attempt to repair a
damaged or leaking air tank.
Replace with a new air tank.
• Unauthorized modifications
to the safety valve or any
other components which
control air tank pressure.
• The air tank is designed
to withstand specific
operating pressures.
Never make adjustments
or parts substitutions
to alter the factory set
operating pressures.
Attachments & accessories:
• Exceeding the pressure
rating of air tools, spray
guns, air operated
accessories, tires, and
other inflatables can cause
them to explode or fly
apart, and could result in
serious injury.
• Follow the equipment
manufacturers
recommendation and never
exceed the maximum
allowable pressure rating
of attachments. Never use
compressor to inflate small
low pressure objects such
as children’s toys, footballs,
basketballs, etc.
WARNING: RISK OF ELECTRICAL SHOCK
WHAT CAN HAPPEN HOW TO PREVENT IT
• Your air compressor is
powered by electricity.
Like any other electrically
powered device, If it is not
used properly it may cause
electricshock.
• Never operate the
compressor outdoors when it
is raining or in wetconditions.
• Never operate compressor
with protective covers
removed ordamaged.
• Repairs attempted by
unqualied 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
from electrocution. See
Grounding Instructions
underInstallation.
• Make certain that the
electrical circuit to which the
compressor is connected
provides proper electrical
grounding, correct voltage
and adequate fuseprotection.

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WARNING: RISK FROM FLYING OBJECTS
WHAT CAN HAPPEN HOW TO PREVENT IT
• The compressed air
stream can cause soft
tissue damage to exposed
skin and can propel dirt,
chips, loose particles,
and small objects at high
speed, resulting in property
damage or personal injury.
• Always wear certified safety
equipment: ANSI Z87.1 eye
protection (CAN/CSA Z94.3)
with side shields when using
the compressor.
• Never point any nozzle or
sprayer toward any part of
the body or at other people
or animals.
• Always turn the compressor
off and bleed pressure
from the air hose and air
tank before attempting
maintenance, attaching tools
or accessories.
WARNING: RISK OF HOT SURFACES
WHAT CAN HAPPEN HOW TO PREVENT IT
• Touching exposed metal
such as the compressor
head, engine head, engine
exhaust or outlet tubes,
can result in serious burns.
• 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 cool.
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.
• Air vents may cover moving
parts and should be avoided
as well.

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• 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.
• Any repairs required on this
product should be performed
by a
DeWALT
factory
service center or a
DeWALT
authorized service center.
WARNING: RISK OF UNSAFE OPERATION
WHAT CAN HAPPEN HOW TO PREVENT IT
• Unsafe operation of your
air compressor could lead
to serious injury or death to
you or others.
• Review and understand all
instructions and warnings in
this manual.
• Become familiar with the
operation and controls of the
air compressor.
• Keep operating area
clear of all persons, pets,
and obstacles.
• Keep children away from the
air compressor at all times.
• Do not operate the product
when fatigued or under the
influence of alcohol or drugs.
Stay alert at all times.
• Never defeat the safety fea-
tures of this product.
• Equip area of operation with
a fire extinguisher.
• Do not operate machine with
missing, broken, or unautho-
rized parts.
WARNING: RISK OF FALLING
WHAT CAN HAPPEN HOW TO PREVENT IT
• 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.
• 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.
CAUTION: RISK FROM NOISE
WHAT CAN HAPPEN HOW TO PREVENT IT
• Under some conditions and
duration of use, noise from
this product may contribute
to hearing loss.
• Always wear certied safety
equipment: ANSI S12.6
(S3.19) hearingprotection.
SAVE THESE INSTRUCTIONS
FOR FUTURE USE

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FEATURES (Fig. 1)
ON/OFF SWITCH
Place this switch (A) in the ON position to G
A
J
provide automatic power to the pressure
switch and OFF to remove power at the
end of each use.
PRESSURE SWITCH
The pressure switch (J) 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.
PRESSURE RELEASE VALVE
The pressure release valve located on the side of the pressure
switch, is designed to automatically release compressed air from
the compressor head and the outlet tube when the air compressor
reaches cut-out pressure or is shut off. The pressure release valve
allows 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.
SAFETY VALVE
If the pressure switch does not shut off the air compressor at its cut-
out pressure setting, the safety valve (G) will 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
F
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) indi- DC
E
B
cates the reserve air pressure in
the tank.
OUTLET PRESSURE GAUGE
The outlet pressure gauge (C)
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 (D) controls the air pressure shown on the outlet
pressure gauge. Turn regulator knob clockwise to increase pressure
and counterclockwise to decrease pressure.
UNIVERSAL QUICK CONNECT BODIES (IF EQUIPPED)
The universal quick connect body (E) accepts the three most
popular styles of quick connect plugs: Industrial, automotive, and
ARO. One hand push-to-connect operation makes connections
simple and easy. The two quick connect bodies allow the use of two
tools at the same time.

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DRAIN VALVE
The drain valve (H) is located at the base
H
of the air tank and is used to drain
condensation at the end of each use. See
Draining Air Tank under Maintenance.
COOLING SYSTEM
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
available until the compressor has raised the air tank pressure
above that required at the air outlet.
MOTOR OVERLOAD PROTECTOR
This motor has a manual thermal overload K
M
N
protector. If the motor overheats for any
reason, the overload protector will shut off
the motor. The motor must be allowed to
cool down before restarting. To restart:
1. Ensure the On/Off switch (A) is in the
OFFposition.
2. Allow the motor tocool.
3. Depress the reset button (M) on
themotor.
OIL DIPSTICK
The oil dipstick (K) indicates the amount of oil in the pump. Check
pump oil daily, see Compressor Pump Oil under Maintenance.
AIR INTAKE FILTER
The filter (N) is designed to clean air entering the pump. To ensure
the pump continually receives a clean, cool, and dry air supply
the filter must always be clean and the filter intake must be free
from obstructions.
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 0 PSI (0 kPa).
2. Grasp the hose at the quick connect plug and push the plug
into the quick connect body (E). Coupler will snap intoplace.
3. Grasp the hose and pull to ensure coupler 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 0 PSI (0 kPa).
2. Pull coupler on quick connect body back to release quick
connect plug onhose.
Lubrication and Oil
CAUTION: The compressor was shipped with oil in the crankcase.
A shipping plug is used to prevent oil from leaking during
shipment. Do not attempt to operate this air compressor without
rst checking the oil level. Serious damage can result from even
limited operation unless lled with oil and broken in correctly.
Closely follow Initial Set-up underOperation.

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CAUTION: Use SAE 5W-40 full syntheticoil.
1. Place unit on a level surface. K
2. Remove the shipping plug and install
thedipstick.
3. Remove the dipstick (K) and check the
oil level. Oil should not exceed top raised
line on dipstick. If oil is below lower mark
see Checking Oil under Compressor
Pump Oil under Maintenance. NOTE: See
Specifications for pump oilcapacity.
CAUTION: Risk of unsafe operation. Overlling with oil will cause
premature compressor failure. Do notoverll.
4. Replacedipstick.
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 (O) with this unit
P
O
Q
contains a grounding pin (P). This plug
MUST be used with a grounded
outlet(Q).
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 conguration 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 qualiedelectrician.
DANGER: Risk of electrical shock. IMPROPER GROUNDING
CAN RESULT IN ELECTRICALSHOCK.
• Do not modify the plug provided. If it does not fit the available
outlet, a correct outlet should be installed by a qualified electrician.
• Repairs to the cord set or plug MUST be made by a
qualified electrician.
Extension Cords
Using extension cords is not recommended. The use of extension
cords will cause voltage 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.
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 will accept the plug on the product
• in good condition
• no longer than 50 feet (15,2 m)
• 12 gauge (AWG) or larger. (Wire size increases as gauge
number decreases. 10 AWG and 8 AWG may also be used. DO
NOT USE 14 OR 16 AWG.)
Voltage and Circuit Protection
Refer to the Voltage and Minimum Branch Circuit Requirements
under Specifications.

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CAUTION: Certain air compressors can be operated on a
15 amp circuit if the following conditions are met.
• Voltage supply to circuit must comply 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 if operation of the
compressor repeatedly causes interruption of the power, it may be
necessary to operate it from a 20 amp circuit. It is not necessary
to change the cordset.
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.
Location
Place the air compressor in a clean, dry and well ventilated area
at least 12" (30.5 cm) away from the wall 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.
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 flat surface resting on the rubber feet.
NOISE CONSIDERATIONS
Consult local officials for information regarding acceptable noise
levels in your area. To reduce excessive noise, use vibration mounts
or silencers, relocate the unit or construct total enclosures or baffle
walls. Contact a
DeWALT
service center or call 1-800-4-
DeWALT
for assistance.
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., ensure
that the tank is drained and the unit is secured. Use care when
driving to avoid tipping the unit over in the vehicle. Damage can
occur to the compressor or surrounding items if the compressor
is tipped.
MOVING
When moving the compressor, grasp the handle and carry the
compressor as close to the body as possible.
WARNING: Risk of unsafe operation. Ensure proper footing and
use caution when carrying compressor to avoid a loss ofbalance.

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PREPARATION FOR USE
Pre-Start Checklist (Fig. 1)
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. Check pump oil level, see Compressor Pump Oil
under Maintenance.
CAUTION: Do not operate without oil or with inadequate oil.
DEWALT
is not responsible for compressor failure caused by inadequateoil.
7. Turn regulator knob (D) counterclockwise until fully closed. Ensure
regulated pressure gauge reads 0 PSI (0 kPa).
8. Attach hose andaccessories.
WARNING: Risk of unsafe operation. Firmly grasp hose in hand
when installing or disconnecting to prevent hosewhip.
9. Ensure all covers and labels are in place, legible (for labels) and
securely mounted. Do not use compressor until all items have
beenveried.
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: Serious damage may result if the following break-in
instructions are not closelyfollowed.
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, pull
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 (counter-clockwise) fully 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 20minutes.
6. After 20 minutes, close the drain valve by turning clockwise. The
tank will ll 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. 1)
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.

15
English
CAUTION: Risk of unsafe operation. Compressed air from the unit
may contain water condensation and oil mist. Do not spray unl-
tered air at an item that could be damaged by moisture. Some air
operated tools or devices may require ltered 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. 1)
1 Move On/Off switch (A) is in the OFF position. NOTE: If nished
using compressor, follow Steps 2 -6.
2. Turn regulator knob (D) counterclockwise until fully closed.
Ensure regulated pressure gauge reads 0 PSI (0 kPa).
3. Remove hose andaccessory.
4. Drain the air tank, see Draining Air Tank under Maintenance.
Ensure air tank pressure gauge reads 0 PSI (0 kPa).
WARNING: Risk of bursting. Drain air tank daily. Water will con-
dense in air tank. If not drained, water will corrode and weaken the
air tank causing a risk of air tankrupture.
5. Allow the compressor to cool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 cool 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 federal laws
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 should
be performed by a
DeWALT
factory service center or a
DeWALT
authorized service center.

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Maintenance Chart
Procedure Daily Weekly Monthly 1 year or
200 Hours
Check safety valve
X
Inspect air filter +
X
Drain air tank
X
Check pump oil level
X
Change pump oil**+
X
Oil leak inspection
X
Check for unusual noise/
vibration
X
Check for air leaks*
X
Clean compressor
exterior
X
* To check for air leaks apply a solution of soapy water around
joints. While compressor is pumping to pressure and after pressure
cuts out, look for air bubbles to form.
** The pump oil must be changed after the first 20 hours of
operation. Thereafter, when using
SAe 5W-40 full synthetic oil,
change oil every 200 hours of operation or once a year, whichever
comes first.
+ Perform more frequent in dusty or humid conditions
Checking Safety Valve (Fig. 1)
WARNING: Hot surfaces.Risk of burn.Aftercooler,pump head,and
surrounding parts are very hot, do not touch (see the Hot Surfaces
identied in Fig. 2).Allow compressor to cool prior to servicing.
WARNING: Risk of bursting. If the safety valve does not work
properly, over-pressurization may occur, 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. If the valve is stuck
or does not operate smoothly, it must be replaced with the same
type of valve.
Checking Air Filter Element (Fig. 1)
WARNING: Hot surfaces.Risk of burn.Aftercooler,pump head,and
surrounding parts are very hot, do not touch (see the Hot Surfaces
identied in Fig. 2).Allow compressor to cool prior to servicing.
1. Ensure the On/Off switch (A) is in the OFFposition.
2. Allow unit tocool.
3. Remove air lter (N) fromunit.
4. Carefully pry lter top frombase.
5. Remove element from lterbase.
6. If element needs cleaning, blow out with air. Replace if needed.
Purchase replacement parts from your local dealer or authorized
service center. Always use identical replacementparts.
7. Place element back in lter base.
8. Snap lter top to lter base.
9. Reassemble air lter to unit. Ensure exhaust outlet pointsdown.
CAUTION: Risk of unsafe operation. Do not operate without air
inlet lter

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Draining Air Tank (Fig. 1)
WARNING: Risk of unsafe operation. Risk from noise. Air
tanks contain high pressure air. Keep face and other body parts
away from outlet of drain. Use safety glasses [ANSI Z87.1 (CAN/
CSA Z94.3)] when draining as debris can be kicked up into face.
Use ear protection [ANSI S12.6 (S3.19)] as air ow 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 oil 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 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)
3. Place a suitable container under the drain valve to catchdischarge.
4. Grasp knurled knob on drainvalve.
5. Slowly rotate knob to gradually bleed air from airtank.
WARNING: Risk of bursting. Drain air tank daily. Water will con-
dense in air tank. If not drained, water will corrode and weaken the
air tank causing a risk of air tankrupture.
CAUTION: Risk of property damage. Drain water from air tank may
contain oil and rust, which can cause stains.
6. When air tank pressure gauge reads 10 PSI (68,9 kPa), rotate
valve to the fully openposition.
7. Close drain valve whennished.
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 identied in
Fig.2).Allow compressor to cool prior to servicing.
1. Ensure On/Off switch is in the OFFposition.
2. Place unit on a at levelsurface.
3. Remove dipstick (K) and wipeclean.
4. Reinsert dipstick fully into oil ll port for a few
seconds to allow oil to collect on thedipstick.
5. Remove oil dipstick to read oil level. Oil should not
exceed top raised line on dipstick. If oil is below
lower mark, add same type of oil in crankcase and
follow Steps 4 -6.
NOTE: When lling the crankcase, the oil ows
very slowly into the pump. If the oil is added too
quickly, it will overow and appear to befull.
CAUTION:Risk of unsafe operation. Overlling with
oil will cause premature compressor failure. Do notoverll.
6. Replacedipstick.
CHANGING OIL
NOTE: Pump oil contains substances that are regulated and must
be disposed of in accordance with local, state and federal laws
and regulations.
WARNING: Hot surfaces.Risk of burn.Aftercooler,pump head,and
surrounding parts are very hot, do not touch (see the Hot Surfaces
identied in Fig. 2).Allow compressor to cool prior to servicing.
MAX
MIN
L
K

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1. Ensure On/Off switch is in the OFFposition.
2. Allow the unit tocool.
3. Remove air compressor plug fromoutlet.
4. Drain airtank.
5. Locate a suitable container under pump drain plug (L).
6. Remove the dipstick (K) fromcrankcase.
7. Remove the oil drain plug (L).
8. Allow ample time for all oil to drain out. (Tilting the compressor
towards the drain plug will assist in draining.)
9. Install the oil drainplug.
10. Fill pump using SAE 5W-40 full syntheticoil.
11. Replacedipstick.
Accessories
Recommended accessories for use with your tool 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 Tool Co., 701 East Joppa Road, Towson,
MD 21286, call 1-800-4-
DeWALT
(1-800-433-9258) or visit our
website www.
DeWALT
.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 calls:
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,
call 1-800-4-
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, call 1-800-4-
DeWALT
for a
free replacement.

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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 (kilopascal): Metric pressure measurement. 1 kilopascal equal 1000 pascals.
Code Certification: Products that bear one or more of the following marks: UL, CUL, ETL, CETL, have been evaluated by OSHA certied
independent safety laboratories and meet the applicable Underwriters 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 low 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. It 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 panel tooutlet.
Duty Cycle: For proper operation of your air compressor, it is recommended that a 50% duty cycle be maintained; that is, the air compressor
should not run more than 5 minutes in any 10 minuteperiod.

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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........................................................................................................................... 6,16,17
Pressure reading on the regulated pressure gauge drops when an accessory is used........... 7
Compressor is not supplying enough air to operate accessories.............................................. 8,9,10,11,12,15
Regulator knob has continuous air leak..................................................................................... 13
Regulator will not shut off air outlet ............................................................................................ 13
Moisture in pump crankcase....................................................................................................... 14,18
Motor will not run ........................................................................................................................ 11,19,20,21,22,23,24,25,26
Troubleshooting Codes
CODE POSSIBLE CAUSE POSSIBLE SOLUTION
1Pressure switch does not shut off motor when compressor
reaches cut-out pressure
Set the On/Off switch to OFF, if the unit does not shut off
contact a
DeWALT
factory service center or a
DeWALT
authorized servicecenter.
2Pressure switch cut-out too high Contact a
DeWALT
factory service center or a
DeWALT
authorized servicecenter.
3Tube fittings are not tight enough Tighten ttings where air can be heard escaping. Check
ttings with soapy water solution. Do NotOvertighten.