DeWalt D55168 User Manual

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WALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286

WALT

The following are trademarks for one or more D

WALT power tools: the yellow and black color scheme; the “D”

shaped air intake grill; the array of pyramids on the handgrip; the kit box configuration; and the array of lozenge-

shaped humps on the surface of the tool.

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-

• www

.dewalt.com

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.

NOTICE: Indicates a practice not related to personal injury which, if not avoided,

may result in property damage.

IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY D

WALT TOOL,

CALL US TOLL FREE AT:

1-800-4-D

WALT (1-800-433-9258)

Important Safety Instructions

WARNING: Do not operate this unit until you read this instruction manual for safety,

operation and maintenance instructions.

WARNING: This product contains chemicals known to the State of California to cause

cancer, and birth defects or other reproductive harm.

Wash hands after handling.

WARNING: Some dust contains chemicals known to the State of California to cause

cancer, birth defects or other reproductive harm such as asbestos and lead in lead based

paint.

Save theSe InStructIon

DANGER: RISk Of ExPlOSION OR fIRE

What can haPPen

hoW to PreVent It

• It is normal for electrical contacts with-

in the motor and pressure switch to

spark.

• Always operate the compressor in a well

ventilated area free of combustible materi-

als, 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 com-

pressor at least 20' (6.1 m) away from spray

area. An additional length of hose may be

required.

• Store flammable materials in a secure loca-

tion away from compressor.

• Restricting any of the compressor ven-

tilation 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 obstruc-

tion that would restrict the flow of fresh air to

the ventilation openings.

• Operate compressor in a clean, dry well ven-

tilated area. Do not operate unit indoors or in

any confined area.

• Unattended operation of this product

could result in personal injury or prop-

erty damage. To reduce the risk of fire,

do not allow the compressor to operate

unattended.

• Always remain in attendance with the prod-

uct when it is operating.

• Always turn off and unplug unit when not in

use.

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 mon-

oxide, toxic vapors, or solid particles

from the air tank. Breathing these con-

taminants can cause serious injury or

death.

• Never use air obtained directly from the com-

pressor to supply air for human consumption.

The compressor is not equipped with suitable

filters and in-line safety equipment for human

consumption.

• Exposure to chemicals in dust created

by power sanding, sawing, grinding,

drilling, and other construction activi-

ties may be harmful.

• 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 pro-

vided on the label or safety data sheets for

the materials you are spraying. Always use

certified safety equipment: NIOSH/OSHA

respiratory protection or properly fit ting face

mask designed for use with your specific

application.

WARNING: RISk Of BURSTING

air tank: On February 26, 2002, the U.S. Consumer Product Safety Commission published

Release # 02-108 concerning air compressor tank safety:
Air compressor receiver tanks do not have an infinite life. Tank life is dependent upon several

factors, some of which include operating conditions, ambient conditions, proper installa-

tions, field modifications, and the level of maintenance. The exact effect of these factors on

air receiver life is difficult to predict.
If proper maintenance procedures are not followed, internal corrosion to the inner wall of the

air receiver tank can cause the air tank to unexpectedly rupture allowing pressurized air to

suddenly and forcefully escape, posing risk of injury to consumers.
Your compressor air tank must be removed from service by the end of the year shown on

your tank warning label.
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.

• 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 acces-

sories, 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 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 D

WALT

factory service center or a D

WALT 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 par-

ticles, 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, fly-

wheel, 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.

• Attempting to operate compressor with

damaged or missing parts or attempt-

ing 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 D

WALT factory service

center or a D

WALT authorized service center.

WARNING: RISk Of UNSAfE OPERATION

What can haPPen

hoW to PreVent It

• Unsafe op er a tion of your air compres-

sor 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 extin-

guisher.

• Do not op er ate machine with missing, bro-

ken, or un au tho 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 move-

ment of the unit. Never operate compressor

on a roof or other elevated position. Use

additional air hose to reach high locations.

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 NOISE

What can haPPen

hoW to PreVent It

• Under some conditions and duration of

use, noise from this product may con-

tribute to hearing loss.

• Always wear proper hearing protection during

use.

Save theSe InStructIonS For Future uSe

components (Fig. 1)

A. Auto(I)/Off(O) Switch

F. 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

J. Air Intake Filter

FeatureS (FIG. 1)

auto/oFF sWItch
Place this switch (A) in the AUTO (I) position to provide automatic power to the pressure

switch and OFF (O) 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) 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 valve (F) is open, allowing compressed air

to enter the air tank. When the air compressor reaches cutout 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.
reGulated 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.
reGulator
The regulator (D) controls the air pressure shown on the regulated pressure gauge. Pull the

knob out and turn clockwise to increase pressure and counterclockwise to decrease pres-

sure. When the desired pressure is reached push knob in to lock in place. The regulated

pressure range is 7–150 psi.

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 regula-

tor outlet pressure must never exceed the maximum pressure rating.
unIVersal QuIck connect Body
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 con-

nections simple and easy.
draIn ValVe
The drain valve (H) 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.

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.
aIr Intake FIlter
The filter (J) 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.