DeWalt D55168 instruction manual Definitions Safety Guidelines, Components Fig, Features FIG

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		DeWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286
(AUG10)		Part No. N087149				D55168	Copyright © 2007, 2008, 2009 2010 DeWALT

The following are trademarks for one or more DeWALT 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.

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 DeWALT TOOL, CALL US TOLL FREE AT: 1-800-4-DeWALT (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

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			• Never operate the compressor outdoors when
electricity. Like any other electrically			it is raining or in wet conditions.
powered device, If it is not used properly			• Never operate compressor with protective
it may cause electric shock.			covers removed or damaged.
• Repairs attempted	by	unqualified	• Any electrical wiring or repairs required on this
personnel can result in serious injury or			product should be performed by a DeWALT
death by electrocution.			factory service center or a DeWALT authorized
			service center in accordance with national
• Electrical Grounding: Failure to provide			and local electrical codes.
			• Make certain that the electrical circuit to
adequate grounding to this product			which the compressor is connected provides
could result in serious injury or death			proper electrical grounding, correct voltage
from electrocution.	See	Grounding	and adequate fuse protection.
Instructions under Installation.
	WARNING: Risk from Flying Objects
What can happen			How to prevent it

•The compressed air stream can cause • Always wear certified safety equipment: ANSI

soft tissue damage to exposed skin	Z87.1 eye protection (CAN/CSA Z94.3) with
and can propel dirt, chips, loose par-	side shields when using the compressor.
ticles, and small objects at high speed,	• Never point any nozzle or sprayer toward any
resulting in property damage or personal	part of the body or at other people or animals.
injury.	• 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	• Never touch any exposed metal parts on
compressor head, engine head, engine	compressor during or immediately after
exhaust or outlet tubes, can result in	operation. Compressor will remain hot for
serious burns.	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-	• Never operate the compressor with guards or
wheel, and belt can cause serious injury	covers which are damaged or removed.
if they come into contact with you or	• Keep your hair, clothing, and gloves away
your clothing.	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 • Any repairs required on this product should damaged or missing parts or attempt- be performed by a DeWALT factory service

ing to repair compressor with protective		center or a DeWALT authorized service center.
shrouds removed can expose you to
moving parts and can result in serious
injury.
	WARNING: Risk of Unsafe Operation
What can happen		How to prevent it
• Unsafe oper­a­tion­ of your air compres-		• Review and understand all instructions and
sor could lead to seri­ous­ inju­ry­ or death		warnings in this manual.
to you or others.		• Become­ famil­iar­ with the operation­ and con­
		trols 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 features­ of this prod­ uct.

•Equip area of operation with a fire extin- guisher.

•Do not oper­ate­ machine with missing, bro- ken, or unau­tho­rized­ parts.

What can happen

•It is normal for electrical contacts with- in the motor and pressure switch to spark.

•If electrical sparks from compressor come into contact with flammable vapors, they may ignite, causing fire or explosion.

•Restricting any of the compressor ven- tilation openings will cause serious overheating and could cause fire.

•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.

How to prevent it

•Always operate the compressor in a well ventilated area free of combustible materi- als, gasoline, or solvent vapors.

•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.

•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.

•Always remain in attendance with the prod- uct when it is operating.

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

				WARNING: RISK OF FALLING
	What can happen				How to prevent it
• A portable compressor can fall from					• Always operate compressor in a stable
	a table, workbench, or roof causing				secure position to prevent accidental move-
	damage to the compressor and could				ment of the unit. Never operate compressor
	result in serious injury or death to the				on a roof or other elevated position. Use
	operator.				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 •The compressor is too heavy to be lifted by
	to lift too heavy an object.				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				• Always wear proper hearing protection during
	use, noise from this product may con-				use.
	tribute to hearing loss.

SAVE THESE INSTRUCTIONS FOR FUTURE USE

		DANGER: RISK TO BREATHING (Asphyxiation)
	What can happen			How to prevent it
• The compressed air directly from your			•	Never use air obtained directly from the com-
	compressor is not safe for breathing.			pressor to supply air for human consumption.
	The air stream may contain carbon mon-			The compressor is not equipped with suitable
	oxide, toxic vapors, or solid particles			filters and in-line safety equipment for human
	from the air tank. Breathing these con-			consumption.
	taminants can cause serious injury or
	death.
•	Exposure to chemicals in dust created		•	Work in an area with good cross ventilation.
	by power sanding, sawing, grinding,			Read and follow the safety instructions pro-
	drilling, and other construction activi-			vided on the label or safety data sheets for
	ties may be harmful.			the materials you are spraying. Always use
•	Sprayed materials such as paint, paint			certified safety equipment: NIOSH/OSHA
	solvents, paint remover, insecticides,			respiratory protection or properly fitting­ face
	weed killers, may contain harmful			mask designed for use with your specific
	vapors and poisons.			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	• Drain air tank daily or after each use. If air tank
water from air tank, causing rust and	develops a leak, replace it immediately with a
thinning of the steel air tank.	new air tank or replace the entire compressor.
• Modifications or attempted repairs to the	• Never drill into, weld, or make any modifications
air tank.	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	• The air tank is designed to withstand specific
valve or any other components which	operating pressures. Never make adjustments
control air tank pressure.	or parts substitutions to alter the factory set
	operating pressures.

Attachments & accessories:

•Exceeding the pressure rating of air • Follow the equipment manufacturers tools, spray guns, air operated acces- recommendation and never exceed the

sories, tires, and other inflatables can	maximum allowable pressure rating of
cause them to explode or fly apart, and	attachments. Never use	compressor to
could result in serious injury.	inflate small low pressure	objects such as
	children’s toys, footballs, basketballs, etc.

Tires:

•Over inflation of tires could result in • Use a tire pressure gauge to check the tires

serious injury and property damage. pressure before each use and while inflating

tires; see the tire sidewall for the correct tire pressure.

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-inpressure. 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 cut-out pressure, the check valve closes, allowing air pressure to remain inside the air tank.

Tank Pressure Gauge

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

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.