ETQ A16 User manual

OWNER’S MANUAL
ELECTRIC AIR COMPRESSOR SET
MODEL A16
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PREFACE
Thank you for purchasing products from EASTERN TOOLS & EQUIPMENT, INC. We
appreciate your business. The following manual is only a guide to assist you and is not a
complete or comprehensive manual of all aspects of maintaining and repairing your air
compressor. The equipment you have purchased is a complex piece of machinery. We
recommend that you consult with a dealer if you have doubts or concerns as to your experience
or ability to properly maintain or repair your equipment. You will save time and the
inconvenience of having to go back to the store if you choose to write or call us concerning
missing parts, service questions, operating advice, and/or assembly questions. Our air
compressors have some of the following features:
• Oil lubricated pump head
• Air cooled
• 2.5 Peak horsepower electric motor
• Extended electrical cord
Portable air compressors provide a portable mobile solution in supplying a pneumatic air supply
for field operations during project construction.
This manual will explain how to operate and service your air compressor set.
If you have any questions or suggestions about this manual, please contact your local dealer or us
directly. Consumers should notice that this manual might differ slightly from the actual
product as more improvements are made to our products. Some of the pictures in this manual
may differ slightly from the actual product as well. Eastern Tools and Equipment, Inc.
reserves the right to make changes at any time without notice and without incurring any
obligation.
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TABLE OF CONTENTS
SAFETY PRECAUTIONS 4
AIR COMPRESSOR HAZARDS 4
ELECTRICAL SAFETY 4
VENTILATION 4
RISK FROM INJURY 4
ASSEMBLY 5
INSTALLATION 6
INSTRUCTIONS ON SETTING UP YOUR UNIT 6
GROUNDING INSTRUCTIONS 6
EXTENSIONCORDS 7
OPERATION 7
KNOWING YOUR AIR COMPRESSOR 7
DESCRIPTION OF OPERATION 7
HOW TO USE YOUR UNIT 9
MAINTENANCE 10
MAINTENANCE SCHEDULE 10
CHECKING THE SAFETY VALVE 10
DRAINING THE AIR TANK 11
OIL AND OIL CHECKING 11
CHANGINGTHEOIL 11
AIR FILTER INSPECTION AND REPLACEMENT 12
MOTOR 12
STORAGE 12
TECHNICAL SPECIFICATIONS 13
TROUBLESHOOTING 14
PARTS DRAWINGS 16
LIMITED WARRANTY 19
APPENDIX 22
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SAFETY PRECAUTIONS
AIR COMPRESSOR HAZARDS
• It is normal to have some sparks within the motor and pressure switch.
• Do not let the compressor come into contact with flammable vapors, as the sparks from
the motor and pressure switch may ignite the flammables and cause an explosion.
Always operate the compressor in a well-ventilated place free of flammable vapors.
• Do not restrict any of the air compressors ventilation openings; as this will cause
overheating and cause potential fires.
• Do not allow the compressor to operate unattended. Unattended operation of this product
could result in accidents.
• Drain the tank daily after operation to prevent rusting and thinning of the steel tank.
• Never modify or repair the air tank. Doing so will weaken the structural integrity of the
air tank and lead to danger.
• The tank is designed to withstand specific operating pressures. Therefore, do not modify
or alter the unloader valve or any other components of the tank.
• Excessive vibrations can weaken the air tank and cause rupture or explosion.
• When operating the air compressor, always wear safety glasses with side shields.
• Always turn the compressor off and bleed the pressure from the air hose and tank before
beginning maintenance, or attaching tools or accessories.
ELECTRICAL SAFETY
• Your air compressor is powered by electricity, therefore, do not operate the compressor
outdoors when it is raining or in wet conditions.
• Any electrical repairs should be performed by an authorized service center professional.
Repairs attempted by unqualified personnel can result in serious injury or death by
electrocution.
• Always make sure the air compressor is properly grounded.
VENTILATION
• Do not inhale the air from the air tank as this air may contain carbon monoxide, toxic
vapors, or solid particles from the tank. These contaminants can cause serious injury or
death.
• Always work in an area with good ventilation. Sprayed materials such as paint, paint
solvents, paint remover, insecticides, weed killers, may contain harmful vapors and
poisons.
• Always wear proper safety masks and wear safety equipment when working with sprayed
chemicals and particles.
RISK FROM INJURY
• Do not touch any exposed metal parts on the compressor, as it remains hot for several
minutes after operation.
• Never operate the compressor with the guards or covers removed. Moving parts such as
a pulley or flywheel can cause serious injury if they come into contact with you or your
clothing.

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• Authorized service center personnel should perform repairs.
• Portable compressors can fall from tables or rooftops causing serious injuries or death to
the operator. Always operate the compressor in a stable secure position to prevent
accidental movement of the unit. Do not operate the compressor on a roof or other
elevated positions. Use more air hose to reach high locations.
• When transporting the compressor, always use a protective mat as fluids from the
compressor may leak or spill. Leaks can damage carpet, paint or other surfaces in
vehicles or trailers.
• Please read and follow the instructions outlined in this manual before operating your
compressor. Unsafe operation of your air compressor could lead to serious injury or
death to you or others.
ASSEMBLY
CAUTION
DO NOT OPERATE THIS AIR COMPRESSOR WITHOUT FIRST ADDING OIL TO
THE CRANKCASE. Major damage will result from even limited operation unless filled
with oil and broken in properly. Be sure to follow all initial start up procedures.
CAUTION
COMPRESSORS ARE SHIPPED WITHOUT OIL AND MAY HAVE A SLIGHT
AMOUNT OF OIL IN THEM FROM TESTING AT THE FACTORY. Be sure to fill oil to
proper level before operation.
CAUTION
Use only SAE30 (API CG/CD heavy duty motor oil). Make sure unit is on a level surface
before adding oil. Also, use the oil viewing glass to see the oil level. When adding oil, be
careful not to fill the oil too fast as it may overfill suddenly.
Oil filling hole

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INSTALLATION
INSTRUCTIONS ON SETTING UP YOUR UNIT
To begin setting up your compressor
• Begin setting up the air compressor in clean, dry, and well-ventilated area.
• Keep the compressor at least 1 foot away from the wall or other objects that may interfere
with the flow of air.
• Keep the air filter clear of obstructions, as this will reduce the airflow into the
compressor.
• Do not allow the compressor to get wet, as this will cause electrical shock. The air
compressor requires a fresh airflow for proper air-cooling.
GROUNDING INSTRUCTIONS
WARNING
Grounding provides an escape wire for the electric current resulting from a short circuit. In order
to ensure your safety, this air compressor must be properly grounded. The air compressor comes
equipped with a cord having a grounding wire and a grounding plug.
• The cord and plug should be plugged into a grounded outlet.
CAUTION: The outlet begin used must be installed and grounded in accordance with all local
codes and ordinances.
• Verify that the outlet being used has the same configuration as the grounded plug. DO
NOT USE AN ADAPTER. See illustration.
• Always inspect the cord for damage before using the compressor.
• If these grounding instructions are not fully understood, or doubts are present, please
contact your local qualified technician for assistance.
WARNING
IMPROPER GROUNDING CAN RESULT IN ELECTRICAL SHOCK.
Do not modify the plug provided. If the plug does not fit the outlet, a qualified electrician should
install a correct outlet. A qualified electrician must make repairs to the cord set or plug.

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EXTENSION CORDS
It is recommended that more air hose be used instead of an extension cord. Using more
extension cord will cause a voltage drop resulting in power loss to the motor.
If an extension cord must be used, verify that 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.
• Extension cord is in good condition
• Length cannot exceed 50 feet.
• Larger than 12 gauge (American wire gauge (AWG)). As the number gets smaller, the
wire gauge gets larger, as the number gets larger, the wire gauge gets smaller.
OPERATION
KNOWING YOUR AIR COMPRESSOR
Read this manual and safety rules before operating the unit. Know all the functions of the air
compressor in case of an emergency.
DESCRIPTION OF OPERATION
Become familiar with these controls before operating the unit.
Tank
Pressure
Gau
g
e
On/Auto/Of
f
Switch
Pressure
Regulator Check Valve
Cooling
System
Pressure
Switch
Outlet
Pressure
Gauge
On/Auto/Off Switch: Put this switch 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 automatically starts and stops the air compressor based
on the tank pressure. If the pressure is low, the pressure switch will cut-in and turn the
compressor on. If the pressure in the tank is high, the pressure switch will cutout and turn the
compressor off.

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Safety Valve: If the pressure switch is malfunctioning and does not turn the compressor off
after the pressure in the tank is too high, there is a safety valve that will protect against high
pressure by “popping out” at its factory set pressure (slightly higher than the pressure switch
“cut-out setting”).
Safety Valve
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 pressure inside the tank.
Regulator: The pressure regulator controls the air pressure shown on the outlet pressure gauge.
To increase the pressure pull the knob out and turn clockwise. To decrease the pressure, pull the
knob out and turn counterclockwise. When the desired pressure is established, push the knob
back into place.
Universal Quick-Connect Body (Not shown): The universal quick-connect body accepts the
three most popular styles of quick-connect plugs- Industrial, automotive, and ARO. One hand
push-to-connect operation makes these connections possible.
Drain Valve: The drain valve is located at the bottom of the tank and is used to drain the
condensation in the tank at the end of each use.
Drain Valve
Cooling System: The compressor is equipped with an air-cooled cooling system. It is normal
for air to be blowing over the pump head, cylinder sleeve, and crankcase. You know the cooling
system is working when air is being expelled.
Air Compressor Pump: Compresses air into the air tank. Working air is not available until the
compressor has raised the pressure in the air tank above that required at the air outlet.
Oil viewing glass: The oil-viewing glass indicates the oil level in the air compressor pump.
Check Valve
Oil Drain
Plug Oil viewing glass
Air Intake Filter

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Air Intake Filter: This filter cleans the air that comes into the air compressor pump. This filter
should always be clean and free from debris.
Check Valve: The check valve permits air to enter the tank when the air compressor pump is
pumping air. When the air compressor cuts-out, the valve closes and traps the air from leaving
the tank.
HOW TO USE YOUR UNIT
Stopping your unit:
• Set the On/Auto/Off switch to the “OFF” position.
Break in procedure
Break in is required before the air compressor is put into service and when the check valve or air
compressor pump is replaced.
• Verify that the switch is in the “OFF” position.
• Check the oil level in the air compressor pump.
• Make sure there is no air leaking from the quick coupler by pulling the coupler back.
• Plug the power cord into a standard properly grounded wall receptacle.
• Fully open the drain valve to prevent pressure buildup during the break-in period.
• Run the compressor for 20 minutes verifying that there is minimal pressure buildup.
• After 20 minutes, close the drain valve. The air receiver (air tank) will fill to “cut-out”
pressure and the motor will stop.
How to Start:
• Turn the On/Auto/Off switch to the “Auto” position and allow tank pressure to build.
When the tank pressure reaches the “cut-out” pressure, the motor will automatically stop.
• To adjust the output pressure, pull the pressure regulator knob out and adjust the pressure.
Counterclockwise decreases the pressure and clockwise raises the pressure.
NOTE: Always operate the air compressor in a well-ventilated area free of flammable or
combustible vapors. Do not place air compressor near the spraying area.

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MAINTENANCE
MAINTENANCE SCHEDULE
Before
each use Daily after each
use
Every 8
hours Every 40 hours Every 100
hours
Check safety
valve X
Drain tank X
Oil Leaks X
Check Oil X
Change Oil X
Air Filter X
CAUTION
Before performing any type of servicing, please be sure to disconnect the power source from the
compressor and drain all air from the air compressor. Failing to do so will lead to serious
injuries as compressed air and moving parts can injure you.
To ensure better operation and longer life of the air compressor, a routine maintenance schedule
should be setup and followed. The maintenance schedule above is based upon a normal working
environment and on a daily basis. If the environment conditions or operating times change to
more extreme conditions, then modifications should be made to the maintenance schedule. The
modifications made should depend on the number of hours involved in operating the compressor
as well as the environment involved. Compressors operating in extremely dirty and or hostile
environments require a more frequent maintenance schedule.
NOTES: See “Operation” section for location of controls.
CHECKING THE SAFETY VALVE
WARNING
The safety valve is a critical component in ensuring your safety. If the safety valve does not
work properly, over-pressurization may occur, causing air tank rupture or an explosion.
• Before starting the air compressor, test the safety valve by first pulling on the valve to see
that it moves freely. If the valve is stuck or does not operate smoothly, it must be
replaced with the same type of valve.