DeWalt Oil-Free 66-651 User Manual

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Oil-Free

Air Compressor

(66-651)

PART NO. D26195 Rev.0

Copyright © 2002 Delta Machinery

To learn more about DELTA MACHINERY

ESPAÑOL: PÁGINA 25

visit our website at: www.deltamachinery.com.

FRANÇAIS: PAGE 49

For Parts, Service, Warranty or other Assistance,

please call 1-866-422-4286.

NINSTRUCTIO

ANM UAL

SAFETY GUIDELINES - DEFINITIONS

This manual contains information that is important for you to know and understand. This information relates to protecting YOUR SAFETY and

PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the symbols below. Please read the manual and pay attention to these symbols.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indicates an

 

 

 

 

 

 

Indicates a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

imminently hazardous

 

 

 

 

 

 

potentially hazardous

 

 

 

 

 

 

 

 

 

 

 

 

 

 

situation which, if not avoided, will

 

 

situation which, if not avoided, may

 

 

result in death or serious injury.

 

 

result in minor or moderate injury.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Used without the

 

 

 

 

 

Indicates a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

potentially

 

 

 

 

 

 

 

safety alert symbol

 

 

 

 

 

 

 

 

 

 

 

 

 

hazardous situation which, if not

 

 

indicates a potentially hazardous

 

avoided, could result indeath or

 

 

situation which, if not avoided, may

 

serious injury.

 

 

result in property damage.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IMPORTANT SAFETY INSTRUCTIONS

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-basedpaints

crystalline silica from bricks and cement and other masonry products

arsenic and chromium from chemically-treatedlumber

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 MSHA/NIOSH approved, properly fitting face mask or respirator when using such tools.

When using air tools, basic safety precautions should always be followed to reduce the risk of of personal injury.

D26195

2- ENG

IMPORTANT SAFETY INSTRUCTIONS

Save these instructions

Improper operation or maintenance of this product could result in serious injury and property damage. Read and understand all warnings and operation instructions before using this equipment.

HAZARD

WARNING: Risk of explosion or fire

What Could Happen

It is normal for electrical contacts within the motor and pressure switch to spark.

If electricalsparks from compressorcome into contact with flammable vapors, they may ignite, causing fire or explosion.

Restricting any of the compressor ventilation openingswill cause serious overheating and could cause fire.

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.

How To Prevent It

Always operate the compressor in awell ventilated area free of combustible materials, gasoline, or solvent vapors.

If spraying flammable materials, locate compressor at least 20 feet away from spray area. An additional length of hose may be required.

Store flammable materials in a secure location away from compressor.

Never place objects against or on top of compressor. Operate compressor in an open area at least 12 inches away fromany wall or obstructionthat 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.

Always remain in attendance with the product when it is operating.

Always disconnect electrical power by moving pressure switch lever to the off position and drain tank daily or after each use.

3- ENG

D26195

HAZARD

WARNING: Risk of Bursting

Air Tank: The following conditions could lead to a weakening of the tank, and result in a violent tank explosion and could cause property damage or serious injury.

What Could Happen

How To Prevent It

1. Failure to properly drain

Drain tank daily or after each use. If

condensed water from tank,

tank develops a leak, replace it

causing rust and thinning of the

immediately with a new tank or replace

steel tank.

the entire compressor.

2. Modifications or attempted repairs

Never drill into, weld, ormake any

to the tank.

modifications to the tank or its

3. Unauthorized modifications to the

attachments.

 

unloader valve, safety valve, or any

 

other components which control

 

tank pressure.

 

4.Excessive vibration can weaken The tank is designed to withstand specific

the air tank and cause rupture or

operating pressures. Never make

explosion

adjustments or parts substitutions to

 

alter the factory set operating

 

pressures.

ATTACHMENTS & ACCESSORIES:

For essential control of air pressure, you

Exceeding the pressure rating of air

must install a pressure regulator and

tools, spray guns, air operated

pressure gauge to the air outlet (if not

accessories, tires, and other inflatables

equipped) of your compressor. Follow the

can cause them to explode or fly apart,

equipment manufacturers

and could result in serious injury.

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.

HAZARD

WARNING: Risk from Flying Objects

WHAT CAN HAPPEN

The compressed airstream can cause soft tissue damageto exposed skin and can propeldirt, chips, loose particles, and small objects at high speed, resulting in property damage or personal injury.

HOW TO PREVENT IT

Always wear ANSI Z87.1 approved safety glasses with side shieldswhen using the compressor.

Never point any nozzle or sprayer towardany part of the body or at other people or animals.

Always turn the compressor off and bleed pressurefrom the air hose and tank before attempting maintenance, attaching tools or accessories.

D26195

4- ENG

HAZARD

WARNING: Risk of Electrical Shock

WHAT CAN HAPPEN

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

Repairs attempted by unqualified personnel can result in serious injury or death by electrocution.

Electrical Grounding: Failure to provide adequate grounding to this product could result in serious injury or death from electrocution.

See grounding instructions.

HOW TO PREVENT IT

Never operate the compressor outdoors when it is raining or in wet conditions.

Never operate compressor with protective covers removed or damaged.

Any electrical wiring or repairsrequired on this product should be performed by authorized service center personnelin accordance with national and local electrical codes.

Make certain that the electrical circuit to which the compressor is connected provides proper electrical grounding, correct voltage and adequate fuse protection.

HAZARD

WARNING: Risk to Breathing

WHAT CAN HAPPEN

The compressed air directly from your compressoris not safe for breathing. Theair stream may contain carbon monoxide, toxic vapors, or solid particles from the tank.Breathing thesecontaminants can cause serious injury or death.

Sprayed materials such as paint, paint solvents, paint remover, insecticides, weed killers, maycontain harmful vapors and poisons.

HOW TO PREVENT IT

Air obtained directly from the compressorshould never be used to supply air for human consumption. In order to use air produced by this compressor for breathing, suitablefilters and in-linesafety equipment must be properly installed. In-linefilters and safety equipment used in conjunction with the compressormust be capable of treating air to all applicable local and federal codes prior to human consumption.

Work in an area with good cross ventilation. Read and follow the safety instructionsprovided on the label or safety data sheets for the materials you are spraying. Use a NIOSH/ MSHA approved respiratordesigned for use with your specific application.

5- ENG

D26195

HAZARD

WARNING: RISK OF BURNS

WHAT CAN HAPPEN

Touching exposed metal such as the compressor head or outlet tubes, can result in serious burns.

HOW TO PREVENT IT

Never touch any exposed metal parts on compressor during or immediately after operation. Compressor will remain hotfor several minutes after operation.

Do not reach around protective shrouds orattempt maintenance until unit has been allowed to cool.

HAZARD

WARNING: RISK FROM MOVING PARTS

WHAT CAN HAPPEN

HOW TO PREVENT IT

Moving parts such as the pulley, flywheel,

Never operate the compressor with

and belt can cause serious injuryif they

guards or covers which aredamaged or

com into contact with you or your

removed.

clothing.

 

 

 

Attempting to operate compressor with

Any repairs required on this product

damaged or missing parts or attempting

should be performed by authorized

to repair compressor with protective

service center personnel.

shrouds removed can expose you to

 

moving parts and can result in serious

 

injury.

 

HAZARD

WARNING: RISK OF FALLING

WHAT CAN HAPPEN

A portable compressor can fallfrom a table, workbench, or roof causing damage to the compressor and could result in serious injury or death to the operator.

HOW TO PREVENT IT

Always operate compressor in a stable secure positionto prevent accidental movement of the unit. Never operate compressor on a roof or other elevated position. Use additional air hose to reach high locations.

D26195

6- ENG

HAZARD

WARNING: RISK OF SERIOUS INJURY OR PROPERTY DAMAGE WHEN TRANSPORTING COMPRESSOR

(Fire, Inhalation, Damage to Vehicle Surfaces)

WHAT CAN HAPPEN

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.

HOW TO PREVENT IT

Always place COMPRESSOR on a protective mat when transportingto protect against damage to vehicle from leaks. Remove COMPRESSOR from vehicle immediately upon arrival at your destination.

HAZARD

WARNING: RISK OF UNSAFE OPERATION

WHAT CAN HAPPEN

Unsafe operation of your air compressor could lead to serious injury or death to you or others.

HOW TO PREVENT IT

Review and understand all instructions and warningsin 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 features of this product.

Equip area of operation with a fire extinguisher.

Do not operate machine with missing, broken, or unauthorized parts.

7- ENG

D26195

GLOSSARY

Become familiar with these terms before operating the unit. CFM: Cubic feet per minute.

SCFM: Standard cubic feet per minute; a unit of measure of air delivery.PSIG: Pounds per square inch gauge; a unit of measure of pressure.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 as you continue to use your accessory. 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: Circuit carrying electricity from electrical panel to outlet.

DUTY CYCLE

Air compressors should be operated on not more than a 50% duty cycle. This means an air compressor that pumps air more than 50% of one hour is considered misuse, because the air compressor is undersized for the required air demand. Maximum compressor pumping time per hour is 30 minutes.

SPECIFICATIONS

Model No.

66-651

Horsepower Peak

5.5

Bore

2.375"

Stroke

1.35"

Voltage-SinglePhase

120V/60Hz/1 Ph

Minimum Branch Circuit Requirement

15 amps

*Fuse Type

Time Delay

Air Tank Capacity

25

Approximate Cut-inPressure

110 PSIG

Approximate Cut-outPressure

135 PSIG

SCFM @ 40 psig

7.5

SCFM @ 90 psig

5.0

* A circuit breaker is preferred. Use only a fuse or circuit breaker that is the same rating as the branch circuit on which the air compressor is operated. 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.

ACCESSORIES

Accessories for this unit are available at the store the unit was purchased.

D26195

8- ENG

ASSEMBLY

Tools Required for Assembly

1 - 9/16” socket or open end wrench

1 - 1/2” socket or open end wrench

Unpacking

1.Remove all packaging leaving the air compressor on the pallet.

2.Remove and discard the (4) screws holding the air compressor to the pallet.

It may be necessary to brace or support one

side of the air compressor when

removing the pallet because the air Screws compressor will have a tendency to tip.

3.Carefully remove the air compressor from the pallet.

Assemble Wheels

It will be necessary to brace or support one side of the outfit when installing the wheels because the compressor

will have a tendency to tip.

1.Attach wheels with shoulder bolts and nuts as shown.

2.Tighten securely. NOTE: The outfit will sit level if the wheels are properly installed.

The wheels and handle do not provide adequate clearance, stability or support for pulling the unit up and

down stairs or steps. The unit must be lifted, or pushed up a ramp.

Assemble Rubber Feet

1.Attach rubber feet with the screws provided as shown in previous figure.

2.Tighten securely.

 

Rubber Feet

 

Screw

Nut

 

Wheel

 

 

Shoulder Bolt

9- ENG

D26195

INSTALLATION

HOW TO SET UP YOUR UNIT

Location of the Air Compressor

Locate the air compressor in a clean, dry and well ventilated area. The air compressor should be located at least 12" away from the wall or other obstructions that will interfere with the flow of air. 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.The air filter must be kept clear of obstructions which could reduce air flow to the air compressor.

GROUNDING INSTRUCTIONS

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 (see following illustrations). The plug must be used with an outlet that has been installed and grounded in accordance with all local codes and ordinances.

1.The cord set and plug with this unit contains a grounding pin. This plug MUST be used with a grounded outlet.

IMPORTANT: The outlet being used must be installed and grounded in accordance with all local codes and ordinances.

2.Make sure the outlet being used has the same configuration as the grounded plug. DO NOT USE AN ADAPTER. See illustration.

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

Plug

Grounding Pin

Grounded

Outlets

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.

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.

D26195

10ENG

Extension Cords

Use extra air hose instead of an extension cord to avoid voltage drop and power loss to the motor, and to prevent overheating.

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

a 3-wireextension cord that has a3-bladegrounding plug, and a3-slotreceptacle that will accept the plug on the product

in good condition

no longer than 50 feet

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 Parts Manual for the voltage and minimum branch circuit requirements.

Certain air compressors can be operated on a 15 amp circuit if the following conditions are met.

1.Voltage supply through branch circuit is 15 amps.

2.Circuit is not used to supply any other electrical needs (lights, appliances, etc.).

3.Extension cords comply with specifications.

4.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.

11ENG

D26195

Drain
Valve
Safety Valve
Pressure Tank Pressure Gauge Outlet Switch Pressure
Gauge
On/Auto/Off Switch
Regulator

OPERATION

Know Your Air Compressor

READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR UNIT. Compare the illustrations with your unit to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference.

Description of Operation

Become familiar with these controls before operating the unit.

On/Auto/Off Switch: Turn this switch ON to provide automatic power to the pressure switch and

OFF to remove power at the end of each use.

Pressure Switch: The pressure switch automatically starts the motor when the air tank pressure drops below the factory set "cutin" 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 will protect against high pressure by "popping out" at its factory set pressure (slightly higher than the pressure switch"cut-out"setting).Outlet Pressure Gauge: The outlet pressure gauge 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.

Tank Pressure Gauge: The tank pressure gauge indicates the reserve air pressure in the tank.

Regulator: Controls the air pressure shown on the outlet pressure gauge. Pull the knob out and turn clockwise to increase pressure and counterclockwise to decrease pressure. When the desired pressure is reached push knob in to lock in place.

Drain Valve: The drain valve is located at the base of the air tank and is used to drain condensation at the end of each use.

Cooling System (not shown): This compressor contains an advanced design cooling system. At the heart of this cooling system is an engineered fan. It is perfectly normal for this fan to blow air through the vent holes in large amounts. You know that the cooling system is working when air is being expelled.

Air Compressor Pump (not shown): 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.

D26195

12ENG

Check Valve: When the air compressor is

 

 

 

operating, the check valve is "open", allowing

 

 

 

compressed air to enter the air tank. When the air

 

 

 

 

Check Valve

 

compressor reaches "cut-out"pressure, the check

 

 

 

 

 

valve "closes", allowing air pressure to remain inside

 

 

 

the air tank.

 

 

 

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

 

 

 

Pressure

the air compressor reaches "cut-out"pressure or is

 

Release

shut off. The pressure release valve allows the motor to

 

Valve

 

 

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 continuous leaking after unit reaches "cut-out"

 

 

pressure.

 

 

 

 

 

How to Use Your Unit

How to Stop:

1.Set the On/Auto/Off lever to "OFF".

Before Starting

Break-ininstructions

Serious damage may result if the following break-ininstructions are not closely followed.

This procedure is required before the air compressor is put into service and when the check valve or a complete compressor pump has been replaced.

1.Make sure the On/Auto/Off lever is in

 

 

 

 

the "OFF" position.

On/Auto/Off Switch

 

 

NOTE: If quick connect is installed, 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. (Refer to

 

 

 

Voltage and Circuit Protection

 

 

 

paragraph in the Installation section of

 

 

 

this manual.)

 

 

 

 

 

Regulator

 

 

 

 

 

 

 

 

3.Open the drain valve fully (counter-clockwise)to permit air to escape and prevent air pressure build up in the air tank during thebreak-inperiod.

NOTE: Always drain tank on a washable surface or in a suitable container to prevent damaging or staining surfaces.

4.Move the On/Auto/Off lever to "ON/AUTO" position. The compressor will start.

5.Run the compressor for 15 minutes. Make sure the drain valve is open and there is minimal air pressure build-upin tank.

13ENG

D26195

6.After 15 minutes, close the drain valve (clockwise). The air receiver will fill to "cut-out"pressure and the motor will stop.

The compressor is now ready for use.

Before Each Start-Up:

1.Place On/Auto/Off lever to "OFF".

2.Pull regulator knob out, turn counter-clockwiseuntil it stops. Push knob in to lock in place.

3.Attach hose and accessories. NOTE: The hose or accessory will require a quick connect plug if the air outlet is equipped with a quick connect.

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.

How to Start:

1.Turn the On/Auto/Off lever to "AUTO" and allow tank pressure to build. Motor will stop when tank pressure reaches "cut-out"pressure.

2.Pull the regulator knob out and turn clockwise to increase pressure. When the desired pressure is reached push knob in to lock in place. The compressor is ready for use.

NOTE: Always operate the air compressor inwell-ventilatedareas free of gasoline or other combustible vapors. If the compressor is being used to operate a sprayer DO NOT place near the spray area.

MAINTENANCE

Customer Responsibilities

 

Before

Daily or

 

 

 

each

after

Frequently

Yearly

 

each

 

use

 

 

 

use

 

 

 

 

 

 

Check Safety Valve

 

 

 

Drain Tank

 

 

 

Air Filter

 

 

1

 

Air compressor pump intake

 

 

 

and exhaust valves

 

 

 

 

 

 

 

 

 

 

 

 

1- more frequent in dusty or humid conditions

 

 

 

 

 

 

 

Unit cycles automatically when power is on. When performing maintenance, you may be exposed to voltage

sources, compressed air, or moving parts. Personal injuries can occur. Before performing any maintenance or repair, disconnect power source from the compressor and bleed off all air pressure.

D26195

14ENG

To ensure efficient operation and longer life of the air compressor outfit, a routine maintenance schedule should be prepared and followed. The following routine maintenance schedule is geared to an outfit in a normal working environment operating on a daily basis. If necessary, the schedule should be modified to suit the conditions under which your compressor is used. The modifications will depend upon the hours of operation and the working environment. Compressor outfits in an extremely dirty and/or hostile environment will require a greater frequency of all maintenance checks.

NOTE: See "Operation" section for the location of controls.

To Check Safety Valve

If the safety valve does not work properly, overpressurization may occur, causing air tank rupture or an

explosion.

1.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.

To Drain Tank

1.Set the On/Auto/Off lever to "OFF".

2.Pull the regulator knob out and turn clockwise to set the outlet pressure to zero.

3.Remove the air tool or accessory.

4.Pull ring on safety valve allowing air to bleed from the tank until tank pressure is approximately 20 psi. Release safety valve ring.

5.Drain water from air tank by opening drain valve (counter-clockwise)on bottom of tank.

Water will condense in the air tank. If not drained, water will corrode and weaken the air tank causing a risk of air

tank rupture.

6.After the water has been drained, close the drain valve (clockwise). The air compressor can now be stored.

NOTE: If drain valve is plugged, release all air pressure. The valve can then be removed, cleaned, the reinstalled.

Air Filter Inspection and Replacement

Hot surfaces. Risk of burn. Compressor heads are exposed when filter cover is removed. Allow

compressor to cool prior to servicing.

Keep the air filter clean at all times. Do not operate the air compressor with the air filter removed.

A dirty air filter will not allow the compressor pump to operate at full capacity. Before you use the compressor pump, check the air filter to be sure it is clean and in place.

15ENG

D26195

If it is dirty, replace it with a new filter. On some models,the filter may be removed by using a pair of needle nose pliers or a screwdriver. Pull or pry out the old filter and carefully clean the filter area. Push in the new air filter.

Air Compressor Pump Intake and Exhaust Valves

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

SERVICE AND ADJUSTMENTS

Unit cycles automatically when power is on. When doing Maintenance, you may be exposed to voltage sources,

compressed air or moving parts. Personal injuries can occur. Before performing any Maintenance or repair, unplug the compressor and bleed off all air pressure.

ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE PERFORMED BY A TRAINED SERVICE TECHNICIAN.

Before servicing:

Unplug or disconnect electrica supply to the air compressor.

Bleed tank of pressure.

Allow the air compressor to cool.

To Replace or Clean Check Valve

1.Release all air pressure from air tank. See "To Drain Tank" in the Maintenance section.

2.Unplug outfit.

3.Using an adjustable wrench, loosen outlet

tube nut at air tank and pump. Carefully

 

 

 

 

Nut

 

 

Outlet Tube

move outlet tube away from check valve.

 

 

 

 

 

 

 

 

Pressure

 

 

 

 

 

4. Using an adjustable wrench, loosen

 

 

 

 

 

 

 

Relief

 

 

 

 

 

 

 

Check

pressure relief tube nut at air tank and

 

Tube

 

Valve

 

pressure switch. Carefully move pressure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

relief tube away from check valve.

 

 

 

 

 

 

 

5. Unscrew the check valve (turn

 

Nut

 

 

 

 

 

counterclockwise) using a 7/8" open end

 

 

 

 

 

 

 

 

 

 

 

 

 

wrench. Note the orientation for

 

 

 

 

 

 

 

reassembly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.Using a screwdriver, carefully push the valve disc up and down. NOTE: The valve disc should move freely up and down on a spring which holds the valve disc in the closed position; if not the check valve needs to be cleaned or replaced.

7.Clean or replace the check valve. A solvent, such as paint or varnish remover can be used to clean the check valve.

Screwdriver

In open position nothing is visible.

In closed position disc is visible.

D26195

16ENG

8.Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise).

9.Replace the pressure release tube. Tighten nuts.

10.Replace the outlet tube and tighten nuts.

11.Perform the Break-inProcedure. See"Break-inProcedure" in the Operationsection.

To Replace Regulator

1.Release all air pressure from air tank. See "To Drain Tank" in the Maintenance section.

2.Unplug compressor.

3.Remove the outlet pressure gauge and quick connect (if equipped) from the regulator.

4.Remove the regulator.

5.Apply pipe sealant tape to the nipple.

Outlet

Pressure

Gauge

Nipple

Regulator Quick

Connect

6.Assemble the regulator and orient as shown.

NOTE: Arrow indicates flow of air. Make sure it is pointing in the direction of air flow.

Regulator

Regulator

Arrow

7.Reapply pipe sealant to outlet pressure gauge and quick connect.

8.Reassemble outlet pressure gauge and quick connect. Orient outlet pressure gauge to read correctly. Tighten quick connect with wrench.

17ENG

D26195

STORAGE

Before you store the air compressor, make sure you do the following:

1.Review the "Maintenance" section on the preceding pages and perform scheduled maintenance as necessary.

2.Set the On/Auto/Off lever to "OFF".

3.Turn the regulator counterclockwise and set the outlet pressure to zero.

4.Remove the air tool or accessory.

5.Pull ring on safety valve allowing air to bleed from the tank until tank pressure is approximately 20 psi. Release safety valve ring.

6.Drain water from air tank by opening drain valve on bottom of tank.

Water will condense in the air tank. If not drained, water will corrode and weaken the air tank causing a risk of air

tank rupture.

7.After the water has been drained, close the drain or drain valve.

NOTE: If drain valve is plugged, release all air pressure. The valve can then be removed, cleaned, then reinstalled.

8.Protect the electrical cord and air hose from damage (such as being stepped on or run over). Wind them loosely around the compressor handle. (If so equipped)

Store the air compressor in a clean and dry location.

D26195

18ENG

TROUBLESHOOTING

Performing repairs may expose voltage sources, moving parts or compressed air sources, moving parts or

compressed air sources. Personal injury may occur. Prior to attempting any repairs, unplug the air compressor and bleed off all air tank air pressure.

PROBLEM

CAUSE

CORRECTION

Excessive tank

Pressure switch does not

Move On/Auto/Off lever to

pressure - safety

shut off motor when

the "OFF" position, if the

valve pops off.

compressor reaches "cut-

outfit does not shut off

 

out" pressure.

contact a Trained Service

 

 

Technician.

 

Pressure switch "cut-out"

Contact a Trained Service

 

too high.

Technician.

 

 

 

 

 

 

 

Air leaks at

Tube fittings are not tight

Tighten fittings where air can

fittings.

enough.

be heard escaping. Check

 

 

fittings with soapy water

 

 

solution. Do Not

 

 

Overtighten.

Air leaks at or

Check valve seat damaged.

A defective check valve

inside check

 

results in a constant air leak

valve

 

at the pressure release valve

 

 

when there is pressure in the

 

 

tank and the compressor is

 

 

shut off. Replace check

 

 

valve. Refer to the "To

 

 

Replace or Clean Check

 

 

Valve" in the "Service and

 

 

Adjustment" section.

 

 

 

 

 

 

 

Air leaks at

Defective pressure switch

Contact a Trained Service

pressure switch

release valve.

Technician.

release valve.

 

 

 

 

 

 

 

 

 

 

 

 

 

Air leaks in air

Defective air tank.

Air tank must be replaced.

tank or at air

 

Do not repair the leak.

tank welds.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Do not drill into, weld or

 

 

otherwise modify air tank

 

 

or it will weaken. The tank

 

 

can rupture or explode.

Air leaks

Leaking seal.

Contact a Trained Service

between head

 

Technician.

and valve plate.

 

 

 

 

 

 

 

 

 

 

 

 

 

19ENG

D26195

PROBLEM

CAUSE

CORRECTION

Pressure reading

It is normal for "some"

If there is an excessive

on the regulated

pressure drop to occur.

amount of pressure drop

pressure gauge

 

when the accessory is used,

drops when an

 

adjust the regulator following

accessory is

 

the instructions in the

used.

 

"Description of Operation"

 

 

paragraph in the "Operation

 

 

Section.

 

 

NOTE: Adjust the regulated

 

 

pressure under flow

 

 

conditions (while accessory

 

 

is being used).

Knocking Noise.

Possible defect in safety

Operate safety valve

 

valve.

manually by pulling on ring.

 

 

If valve still leaks, it should

 

 

be replaced.

 

Defective check valve.

Remove and clean, or

 

 

replace.

 

 

 

Compressor is

Prolonged excessive use of

Decrease amount of air

not supplying

air.

usage.

enough air to

Compressor is not large

Check the accessory air

operate

accessories.

enough for air requirement.

requirement. If it is higher

 

 

than the SCFM or pressure

 

 

supplied by your air

 

 

compressor, you need a

 

 

larger compressor.

 

Hole in hose.

Check and replace if

 

 

required.

 

Check valve restricted.

Remove and clean, or

 

 

replace.

 

Air leaks.

Tighten fittings.

 

Restricted air intake filter

Clean or replace air intake

 

 

filter. Do not operate the air

 

 

compressor with the filter

 

 

removed. Refer to the "Air

 

 

Filter" paragraph in the

 

 

"Maintenance " section.

 

 

 

Regulator knob

Damaged regulator

Replace

has continuous

 

 

air leak.

 

 

 

 

 

D26195

20ENG

PROBLEM

CAUSE

CORRECTION

Regulator will

Damaged regulator

Replace

not shut off air

 

 

outlet.

 

 

 

 

 

Motor will not

Motor overload protection

Let motor cool off and

run.

switch has tripped

overload switch will

 

 

automatically reset.

 

Tank pressure exceeds

Motor will start automatically

 

pressure switch "cut-in"

when tank pressure drops

 

pressure.

below "cut-in"pressure of

 

 

pressure switch.

 

Extension cord is wrong

Check for proper gauge wire

 

length or gauge.

and cord length.

 

Check valve stuck open.

Remove and clean, or

 

 

replace.

 

Loose electrical connections.

Check wiring connection

 

 

inside pressure switch and

 

 

terminal box area.

 

Possible defective motor or

Have checked by a Trained

 

starting capacitor.

Service Technician.

 

Paint spray on internal motor

Have checked by a Trained

 

parts.

Service Technician. Do not

 

 

operate the compressor in

 

 

the paint spray area. See

 

 

flammable vapor warning.

 

Pressure release valve on

Bleed the line by pushing the

 

pressure switch has not

lever on the pressure switch

 

unloaded head pressure.

to the "off" position; if the

 

 

valve does not open, replace

 

 

switch.

 

Fuse blown, circuit breaker

1. Check fuse box for blown

 

tripped.

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.

 

 

2. Check for proper fuse. You

 

 

should use a time delay

 

 

fuse.

 

 

3. Check for low voltage

 

 

conditions and/or proper

 

 

extension cord.

 

 

4. Disconnect the other

 

 

electrical appliances from

 

 

circuit or operate the

 

 

compressor on its own

 

 

branch circuit.

 

 

 

21ENG

D26195

AIR COMPRESSOR DIAGRAM

Torque

15-25ft.-lbs.1

2

Torque 100-120in.-lbs.

32 31

8

3

4

 

10

Torque

6

9-12ft.-lbs.

28

10

 

7

 

 

 

27

11

9

 

25

14 15

26

24

16

18 17

21

20

5

22

 

Torque

23

5-7ft.-lbs.

 

19

29

30

5

D26195

22ENG

 

 

PARTS LIST

Key

Part

 

No.

Number

Description

1

ACG-408

Fastener Assembly (2 used)

2

AC-0376

Mini Shroud

391895680 Screw, 1/4-20x .75 (2 used)

4ACG-18Cup, Saddle Mount (2 used)

5

CAC-60

Shoulder Bolt (2 used)

6

AC-0774

Isolator (3 used)

7

SSW-7367

Bushing, Strain Relief

8

AC-0605-1

Outlet Tube

9

SSP-7811

Nut/Sleeve Assembly (1/4")

10

Z-D23004

Gauge (2 used)

11

SSP-6021

Reducer Bushing (1/8"-1/4NPT)

14

Z-AC-0746

Pressure Switch

15SSP-480Nipple, 1/4 x 2.5"

16SSW-7482Connector Conduit 3/8

17

TIA-4150

Safety Valve

18

SUDL-413-2

Cord Assembly

19

D23138

Wheel - 9" (2 used)

20

AC-0609

Handle

21

SS-1286

Nipple 1/4" - 18 NPT

22

SSF-981

Screw (4 used)

23

SSF-8080-ZN

Nut, Hex 3/8-16unc - 2B (2 used)

24

CAC-4296-1

Regulator

25

H-2099

Adaptor (1/4" NPT x 1/4" NPSM)

26

AC-0630

Pressure Relief Tube

27

AC-0631

Check Valve

28SSP-7813Nut/Sleeve Assembly (3/8")

29SST-107Rubber Bumper (2 used)

30SSF-630Bumper Screw (2 used)

31

SSP-7821-1

Tube Nut

32

SSG-3105

O-Ring

33

D26196

Tank

 

NOT SHOWN

 

 

SS-2707

Drain Valve

23ENG

D26195

AIR COMPRESSOR PUMP DIAGRAM

85

Torque 7-10ft.-lbs.

90

84

83

89

81

88

87

80

Torque 51-63in.-lbs.91 92

93

Torque 42-48in.-lbs.

79

 

78

76

72

Torque 100-120in.-lbs.70

73 Torque100-120in.-lbs.

74

D26195

24ENG

PARTS LIST

KEY

PART

 

NO.

NO.

DESCRIPTION

 

70

SSF-586

Screw 1/4 -20x .75

 

72

AC-0108

Fan

 

73

SSF-615

Screw 1/4-20UNC-2ATHD

 

76

Z-MO-9086-1Motor

 

75

Z-AC-0107

Eccentric Bearing Assembly

* 78

-----

Cylinder Sleeve

 

79

-----

Connecting Rod Assembly

* 80

SSG-8156

O-Ring

 

81

Z-AC-0032

Valve Plate Assembly

* 83

ACG-45

O-Ring

 

84

AC-0037

Head

 

85

SSF-927

Screw 1/4-20x 1.125 (4 used)

 

87

-----

Muffler Intake

 

88

-----

Screen Filter

 

89

DAC-143

Filter Intake

 

90

-----

Fastener Intake Filter (2 used)

* 91

-----

Screw

 

92

-----

Compression Ring Cap

* 93

-----

Preformed Compression Ring

KK-4981

Intake Muffler Kit

 

KK-4835

Piston/Cylinder Kit

*K-0650Cylinder Sleeve/Compression Ring Kit

25ENG

D26195

LIMITED WARRANTY

DELTA MACHINERY warrants to the original purchaser that all products covered under this warranty are free from defects in material and workmanship. Products covered under this warranty include air compressors, air tools, service parts, pressure washers, and generators, which have the following warranty periods:

3 YEARS - Limited warranty on2-stageoil-freeair compressor pumps that operate at 1725 RPM.2 YEARS - Limited warranty onoil-lubricatedair compressor pumps.

1 YEAR - Limited warranty on all other air compressor components.2 YEARS - Limited warranty on electric generator alternators.

1 YEAR - Limited warranty on other generator components.

2 YEARS - Limited warranty on pneumatic air tools as described in Delta general catalog.

1 YEAR - Limited warranty on pressure washers used in consumer applications (i.e. personal residential household usage only).

90 DAY - Pressure washers used for commercial applications (income producing) and service parts.1 YEAR - Limited warranty on all accessories.

Delta will repair or replace, atDelta's option, products or components which have failed within the warranty period. Service will be scheduled according to the normal work flow and business hours at the service center location, and the availability of replacement parts. All decisions ofDelta Corporation with regard to this limited warranty shall be final.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

RESPONSIBILITY OF ORIGINAL PURCHASER (initial User):

To process a warranty claim on this product, DO NOT return it to the retailer. The product must be evaluated by an Delta Authorized Warranty Service Center. For the location of the nearest Authorized Warranty Service Center call1-866-422-4286,24 hours a day, 7 days a week.

Retain original cash register sales receipt as proof of purchase for warranty work.

Use reasonable care in the operation and maintenance of the product as described in the Owners Manual(s).

Deliver or ship the product to the nearest Authorized Warranty Service Center. Freight costs, if any, must be paid by the purchaser.

Air compressors with 60 and 80 gallon tanks will be inspected at the site of installation. Contact the nearest Authorized Warranty Service Center that provides on-siteservice calls, for service call arrangements.

If the purchaser does not receive satisfactory results from the Authorized Warranty Service Center, the purchaser should contact .

THIS WARRANTY DOES NOT COVER:

Merchandise sold as reconditioned, used as rental equipment, and floor or display models.

Merchandise that has become damaged or inoperative because of ordinary wear, misuse*, cold, heat, rain, excessive humidity, freeze damage, use of improper chemicals, negligence, accident, failure to operate the product in accordance with the instructions provided in the Owners Manual(s) supplied with the product, improper maintenance, the use of accessories or attachments not recommended by , or unauthorized repair or alterations.

*An air compressor that pumps air more than 50% during a one hour period is considered misuse because the air compressor is undersized for the required air demand.

Repair and transportation costs of merchandise determined not to be defective.

Costs associated with assembly, required oil, adjustments or other installation and start-upcosts.

Expendable parts or accessories supplied with the product which are expected to become inoperative or unuseable after a reasonable period of use, including but not limited to sanding disks or pads, saw and shear blades, grinding stones, springs, chisels, nozzles, o-rings,air jets, washers and similar accessories.

Merchandise sold by which has been manufactured by and identified as the product of another company, such as gasoline engines. The product manufacturer's warranty, if any, will apply.

ANY INCIDENTAL, INDIRECT OR CONSEQUENTIAL LOSS, DAMAGE, OR EXPENSE THAT MAY RESULT FROM ANY DEFECT, FAILURE OR MALFUNCTION OF THE PRODUCT IS NOT COVERED BY THIS WARRANTY. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED TO ONE YEAR FROM THE DATE OF ORIGINAL PURCHASE.

Some states do not allow limitations on how long an implied warranty lasts, so the above limitations may not apply to you.

Jackson, TN USA

1-866-422-4286

D26195

26ENG