DeWalt D55154 Instruction Manual

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1-800-4-DeWALT

Instruction Manual

Guide D’utilisation

Manual de instrucciones

D55154

Heavy-Duty Electric Wheeled Dolly-Style Air Compressor
Compresseur d’air électrique, industriel sur chariot
Compresor de aire eléctrico con ruedas para trabajo pesado

final page size: 8.5 x 5.5 in

ENGLISH

English (original instructions) 1

Français (traduction de la notice d’instructions originale) 14

Español (traducido de las instrucciones originales) 29

ENGLISH

1

Definitions: Safety Alert Symbols and Words

This instruction manual uses the following safety alert symbols and words to alert you to hazardous situations and your risk
of personal injury or property damage.



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.



(Used without word) Indicates a safety related message.

NOTICE: Indicates a practice not related to personal injury which, if not avoided, may result in propertydamage.



WARNING! Read all safety warnings and all
instructions. Failure to follow the warnings and

instructions may result in electric shock, fire and/or
seriousinjury.

WARNING: To reduce the risk of injury, read the
instructionmanual.



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
lead based paint.

1

On/off switch

2

Air tank pressure gauge

3

Regulated pressure
gauge

4

Pressure regulator

5

Quick connects

6

Check valve

7

Safety valve

8

Air tank drain valve

9

Power cord wrap

10

Pressure switch

11

Pump oil dipstick

12

Pump oil drain plug

13

Motor reset

14

Air intake filter

15

Handle

16

Handle locking knobs

17

Top panel for cargo

Fig. A

342

NOT A

STEP

1715

16

12

6

13

11

8

14

7

9

10

1

5

ENGLISH

2

SAVE ALL WARNINGS AND

INSTRUCTIONS FOR FUTURE

REFERENCE



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 pump.

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.



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 certified safety
equipment: ANSI S12.6 (S3.19)
hearing protection.



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 / 152 mm diameter) according to ASME
Section VIII, Div. 1 rules. All pressure vessels should
be inspected once every two years. To find 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:

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.

ENGLISH

3

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.

Tires:

Over inflation of tires could
result in serious injury and
property damage.

Use a tire pressure gauge to check
the tires pressure before each
use and while inflating tires; see
the tire sidewall for the correct
tire pressure.

NOTE: Air tanks, compressors
and similar equipment used to
inflate tires can fill small tires
similar to these very rapidly. Adjust
pressure regulator on air supply
to no more than the rating of the
tire pressure. Add air in small
increments and frequently use the
tire gauge to prevent over inflation.



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 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 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.



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 OF INJURY FROM LIFTING

What can happen How to prevent it

Serious injury can result from
attempting to lift too heavy
an object.

The compressor is too heavy
to be lifted by one person.
Obtain assistance from others
before lifting.



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.

ENGLISH

4

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 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 warnings in
this manual.

Be come fa mil iar with the op eration
and con trols of the air compressor.

Keep operating area clear of all
persons, pets, and obstacles.

Keep chil dren 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 prod uct.

Equip area of operation with a
fire extinguisher.

Do not op er ate machine
with missing, broken, or
un authorized parts.

Never stand on the compressor.



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.

SAVE THESE INSTRUCTIONS FOR

FUTURE USE



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 examples of these
chemicalsare:

• lead from lead-based paints,

• crystalline silica from bricks and cement and other
masonry products, and

• arsenic and chromium from chemically­treated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, such as those dust masks that are
specially designed to filter out microscopicparticles.

• Avoid prolonged contact with dust from power

sanding, sawing, grinding, drilling, and other
construction activities. Wear protective clothing and
wash exposed areas with soap and water. Allowing

dust to get into your mouth, eyes, or lay on the skin may
promote absorption of harmfulchemicals.



WARNING: Use of this tool can generate and/
or disperse dust, which may cause serious and
permanent respiratory or other injury. Always use
NIOSH/OSHA approved respiratory protection
appropriate for the dust exposure. Direct particles
away from face andbody.

COMPONENTS (FIG. A–G)



WARNING: Never modify the power tool or any part
of it. Damage or personal injury couldresult.

Refer to Figure A at the beginning of this manual for a
complete list ofcomponents.

Specifications

Model D55154

Weight 80 lbs. (36.3 kg)

Height 20.0" (508.0 mm)

Width 18.5" (469.9 mm)

Length 23.0" (584.2 mm)

Air Tank Capacity (Gallons) 4.0 (15.1 liters)

Approx Cut-In Pressure 95 PSI (655 kPa)

Approx. Cut-Out Pressure 125 PSI (861.8 kPa)

SCFM @ 100 PSI (689.5 Kpa) 3.8

Motor 1.1 HP (continuous)

Volts/Amps/Hertz 120V/14 A/60 Hz.

RPM 3450

Minumum Branch Circuit Requirement 15 Amp

Pump Oil Capacity 12 oz. (354.9 ml)

Duty Cycle 5 Minutes On /

5 Minutes Off

ENGLISH

5

OUTLET TUBE

CHECK VALVE

PUMP CYLNDER
AND HEAD

Fig. B

On/Off Switch

Place this switch

1

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

10

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.

Fig. C

10

1

Safety Valve

If the pressure switch does not shut off the air compressor
at its cut-out pressure setting, the safety valve

7

will
protect against high pressure by popping out at its factory
set pressure (slightly higher than the pressure switch cut­outsetting).

7

Fig. D

Check Valve

When the air compressor is operating, the check valve

6

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.

Fig. E

6

Tank Pressure Gauge

The tank pressure gauge

2

indicates the reserve air

pressure in thetank.

Regulated Pressure Gauge

The regulated pressure gauge

3

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

4

controls the air pressure shown on
the regulated pressure gauge. Turn regulator knob
clockwise to increase pressure and counterclockwise to
decreasepressure.

Universal Quick Connect Bodies

The universal quick connect body

5

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.

Drain Valve

The drain valve

8

is located 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.

8

Fig. F

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 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

1

is in the OFFposition.

2. Allow the motor tocool.

3. Depress the reset button

13

on themotor.

ENGLISH

6

Fig. G

13

11

Oil Dipstick

The oil dipstick

11

indicates the amount of oil in the

pump. Check pump oil daily, see Compressor Pump Oil
underMaintenance.

Air Intake Filter

The filter

14

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.

ASSEMBLY AND ADJUSTMENTS



WARNING: To reduce the risk of serious personal
injury, turn unit off and disconnect it from
power source before making any adjustments or
removing/installing attachments or accessories.

An accidental start-up can causeinjury.

Assembly (Fig. A, H–M)

Installing Handle



CAUTION: Risk of personal injury. Avoid placing
hands between handle and top panel when
assembling to preventpinching.

1. Place handle

15

into bushings on top panel

17

.

2. Depress snap buttons and slide handle through first
bushings until it stops at secondbushings.

3. Reach under top panel and depress snap buttons again
and slide through secondbushings.

4. Pull handle all the way up until it stops. Turn knobs

16

to lock handle in place. IMPORTANT: Always pull
handle up and lock in place before using as adolly.

5. If not using the dolly feature, loosen knobs and push
handle down until itstops.

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

5

. Coupler will snap

intoplace.

3. Grasp the hose and pull to ensure coupler isseated.

Fig. H

2

4

3

5

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 first checking the
oil level. Serious damage can result from even limited
operation unless filled with oil and broken in correctly.
Closely follow Initial Set-up underOperation.



CAUTION: Use SAE 5W-40 full synthetic oil.

1. Place unit on a levelsurface.

2. Remove the shipping plug and install the dipstick

11

.

3. Remove the dipstick 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. Overfilling with
oil will cause premature compressor failure. Do
notoverfill.

Fig. I

11

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

18

with this unit contains a

grounding pin

19

. This plug MUST be used with a

grounded outlet

20

.

ENGLISH

7

Fig. J

18

20

19

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 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

• plug is not worn

• no longer than 50 feet (15,2 m)

• 12 gauge (AWG) or larger. (Wire size increases as gauge
number decreases. 10 AWG may also be used. DO NOT
USE 14, 16 OR 18 AWG.)

Voltage and Circuit Protection

Refer to the Voltage and Minimum Branch Circuit
Requirements underSpecifications.



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

1

to the OFF position before removing

the plug from theoutlet.

Transporting

When transporting the compressor in a vehicle, trailer, etc.
ensure that the air tank is drained and the unit is secured
and placed on a flat horizontalsurface.

NOTE: Use recommended tie down points

21

when
transporting. Use care when driving so to avoid tipping the
unit over in the vehicle. Damage can occur to the unit or
surrounding items if unit istipped.

Lifting

Always use two people when lifting and lift from the
recommended lift points

22

.

ENGLISH

8

22

21

Fig. K

Moving

1. Grasp handle

15

of compressor and pull up until it

stops. Turn knobs to lock handle inplace.

2. Grasp handle and tilt compressor so unit can be rolled
on thetires.



WARNING: Risk of unsafe operation. Ensure proper
footing and use caution when rolling compressor so
that unit does not tip or cause loss ofbalance.

3. When location is reached slowly lower compressor
to ground. Always store compressor in a

horizontalposition.

NOTE: Should the unit tip over, hard starting and smoking

will occur due to oilspillage.

Dolly Feature

1. Grasp handle

15

of compressor and pull up

until it stops. Turn knobs to lock handle in place.
IMPORTANT:Always pull handle up and lock in place
before using as adolly.

Fig. L

15

2. Place cargo onto top panel ofcompressor.

3. Secure cargo to top panel with retention straps. Hook
cargo retention straps into positioning holes in top
panel. NOTE: Retention straps to secure cargo may be
purchase from a local hardware store or home center in
a variety ofsizes.

Fig. M



CAUTION: Risk of unsafe operation. Do not transport
unsecuredcargo.



CAUTION: Risk of unsafe operation. Load limit is
100lbs. (45.4kg) do notexceed.

4. With cargo secured, grasp handle and tilt compressor so
unit can be rolled on thetires.



WARNING: Risk of unsafe operation. Ensure proper
footing and use caution when rolling compressor so
that unit does not tip or cause loss ofbalance.

5. When location is reached slowly lower compressor
to ground. Always store compressor in a

horizontalposition.

OPERATION



WARNING: To reduce the risk of serious personal
injury, turn unit off and disconnect it from
power source before making any adjustments or
removing/installing attachments or accessories.

An accidental start-up can causeinjury.

Preparation For Use
Pre-Start Checklist (Fig. A)

1. Ensure the On/Off switch

1

is in the OFFposition.

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

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

4. Ensure the drain valve

8

isclosed.

5. Ensure safety valve

7

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

4

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verified.



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. A)



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

ENGLISH

9

Break-in Procedure



CAUTION: RISK OF PROPERTY DAMAGE. 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

1

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

Assembly and Adjustments.

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 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. A)

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

2. Move the On/Off switch

1

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 wa ter condensation and oil
mist. Do not spray un fil tered air at an item that could
be damaged by moisture. Some air op er ated tools or
de vic es may require filtered air. Read the in struc tions
for the air tool ordevice.

3. Adjust regulator

4

to desired setting. See Regulator

underComponents.

Shut-down (Fig. A)

1. Move On/Off switch

1

is in the OFF position. NOTE: If

finished using compressor, follow Steps 2 -6.

2. Turn regulator knob

4

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 condense 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, non­freezingarea.

MAINTENANCE



WARNING: To reduce the risk of serious personal
injury, turn unit off and disconnect it from
power source before making any adjustments or
removing/installing attachments or accessories.

An accidental start-up can causeinjury.

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.

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. B)



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.B).
Allow compressor to cool prior toservicing.

ENGLISH

10



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. A, B)



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.B).
Allow compressor to cool prior toservicing.

1. Ensure the On/Off switch

1

is in the OFFposition.

2. Allow unit tocool.

3. Remove air filter

14

fromunit.

4. Carefully pry filter top frombase.

5. Remove element from filter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 filterbase.

8. Snap filter top to filterbase.

9. Reassemble air filter to unit. Ensure exhaust outlet
pointsdown.



CAUTION: Risk of unsafe operation. Do not operate
without air inletfilter.

Draining Air Tank (Fig. A)



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 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
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

8

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 condense 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finished.

Compressor Pump Oil (Fig. B, N)

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.B).
Allow compressor to cool prior toservicing.

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

2. Place unit on a flat levelsurface.

3. Remove dipstick

11

and wipeclean.

4. Reinsert dipstick fully into oil fill 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 filling the crankcase, the oil flows
very slowly into the pump. If the oil is added too quickly,
it will overflow and appear to befull.



CAUTION: Risk of unsafe operation. Overfilling with
oil will cause premature compressor failure. Do
notoverfill.

6. Replacedipstick.

MAX

MIN

11

12

Fig. N

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 identified in Fig.B).
Allow compressor to cool prior toservicing.

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

12

.

6. Remove the dipstick

11

fromcrank case.

7. Remove the oil drain plug

12

.

ENGLISH

11

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.

Cleaning



WARNING: Blow dirt and dust out of all air vents with
clean, dry air at least once a week. To minimize the risk
of eye injury, always wear ANSI Z87.1 approved eye
protection when performingthis.



WARNING: Never use solvents or other harsh
chemicals for cleaning the non-metallic parts of
the tool. These chemicals may weaken the plastic
materials used in these parts. Use a cloth dampened
only with water and mild soap. Never let any liquid
get inside the tool; never immerse any part of the tool
into aliquid.

Accessories



WARNING: Since accessories, other than those
offered by

DeWALT

, have not been tested with this
product, use of such accessories with this tool could be
hazardous. To reduce the risk of injury, only

DeWALT

recommended accessories should be used with
thisproduct.

Recommended accessories for use with your tool
are available at extra cost from your local dealer or
authorized service center. If you need assistance in
locating any accessory, 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.

Repairs

The charger and battery pack are notserviceable.



WARNING: To assure product SAFETY and
RELIABILITY, repairs, maintenance and adjustment
(including brush inspection and replacement, when
applicable) should be performed by a

DeWALT

factory

service center or a

DeWALT

authorized service center.

Always use identical replacementparts.

Register Online

Thank you for your purchase. Register your product nowfor:

• WARRANTY SERVICE: Registering your product will

help you obtain more efficient warranty service in case
there is a problem with yourproduct.

• CONFIRMATION OF OWNERSHIP: In case of

an insurance loss, such as fire, flood or theft, your
registration of ownership will serve as your proof
ofpurchase.

• FOR YOUR SAFETY: Registering your product will

allow us to contact you in the unlikely event a safety
notification is required under the Federal Consumer
SafetyAct.

Register online at www.dewalt.com/register.

Three Year Limited Warranty

DeWALT

will repair, without charge, any defects due to
faulty materials or workmanship for three years from the
date of purchase. This warranty does not cover part failure
due to normal wear or tool abuse. For further detail of
warranty coverage and warranty repair information, visit
www.dewalt.com or call 1-800-4-

DeWALT

(1-800-433-9258).
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.

In addition to the warranty,

DeWALT

tools are covered

byour:

1 YEAR FREE SERVICE

DeWALT

will maintain the tool and replace worn parts
caused by normal use, for free, any time during the first year
afterpurchase.

90 DAY MONEY BACK GUARANTEE

If you are not completely satisfied with the performance of
your

DeWALT

Power Tool, Laser, or Nailer for any reason, you
can return it within 90 days from the date of purchase with
a receipt for a full refund – no questionsasked.

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 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

(1-800-433-9258) 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 (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 certified 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.

ENGLISH

12

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.

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

1 Pressure 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.

2 Pressure switch cut-out too high Contact a DeWALT factory service center or a DeWALT authorized service center.
3 Tube fittings are not tight enough Tighten fittings where air can be heard escaping. Check fittings with soapy water

solution. Do Not Overtighten.

4 Defective air tank 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.

5 Leaking seals Contact a DeWALT factory service center or a DeWALT authorized service center.

6 Defective safety valve Operate safety valve manually by pulling on ring. If valve still leaks, it must

be replaced.

7 Regulator is not adjusted correctly for accessory being used It is normal for some pressure drop to occur when an accessory is used, adjust the

regulator 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 compressor is needed to
operate accessory.

10 Hole in air hose Replace air hose.
11 Check valve restricted Remove, clean or replace.
12 Air leaks Tighten fittings.
13 Regulator is damaged Replace.

14 Unit operating in damp or humid conditions Move unit to a dry well ventilated area.

15 Restricted air intake filter Clean or replace air intake filter.

ENGLISH

13

CODE POSSIBLE CAUSE POSSIBLE SOLUTION

16 Engine or pump oil is low Add same type of oil in crankcase to pump. See Compressor Pump Oil

under Maintenance.

17 Carbon build-up in pump. Contact a DeWALT factory service center or a DeWALT authorized service center.

18 Detergent type oil being used in pump Drain oil and refill pump using SAE 5W-40 full synthetic oil.

19 Motor overload protection switch has tripped See Motor Overload under Components.

20 Extension cord is wrong length or gauge Check for proper gauge wire and cord length. See Extension Cords

under Assembly and Adjustments.

21 Loose electrical connections Contact a DeWALT factory service center or a DeWALT authorized service center.

22 Possible defective motor or starting capacitor Contact a DeWALT factory service center or a DeWALT authorized service center.

23 Paint spray on internal motor parts Contact a DeWALT factory service center or a DeWALT authorized service center. Do

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

24 Fuse blown, circuit breaker tripped 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 your
particular branch circuit.

Check for proper fuse. Use only a time delay fuse.
Check for low voltage conditions and/or proper extension cord.
Disconnect the other electrical appliances from circuit or operate the compressor on

its own branch circuit.

25 Tank pressure exceeds pressure switch cut-in pressure Motor will start automatically when tank pressure drops below cut-in pressure of

pressure switch.

26 Pressure release valve on pressure switch has not unloaded

head pressure

Set the On/Off switch to OFF. If the valve does not open, replace switch. Contact a
DeWALT factory service center or a DeWALT authorized service center.