NorthStar 53009 User manual

READ & SAVE THESE INSTRUCTIONS
8-Gallon Electric Air Compressor
Owner’s Manual
WARNING: Read carefully and understand all ASSEMBLY AND OPERATION
INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety
precautions may result in serious personal injury or property damage.
Item #53009

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Thank you very much for choosing a NorthStar™product!
For future reference, please complete the owner’s record below:
Serial Number/Lot Date Code: ________________________________
Purchase Date: ____________________________________________
Save the receipt, warranty, and this manual. It is important that you read
the entire manual to become familiar with this product before you begin
using it.
This air compressor is designed for certain applications only. Northern
Tool and Equipment is not responsible for issues arising from
modification or improper use of this product such as an application for
which it was not designed. We strongly recommend that this product not
be modified and/or used for any application other than that for which it
was designed.
For technical questions, please call 1-800-222-5381.

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Table of Contents
Intended Use..........................................................................................................................................4
Packaging Contents..............................................................................................................................4
Technical Specifications......................................................................................................................4
Important Safety Information...............................................................................................................4
Specific Operation Warnings...............................................................................................................7
Grounding..............................................................................................................................................9
Extension Cords..................................................................................................................................10
Main Parts of Model 53009.................................................................................................................11
Ref. 1 Air Filter Set..............................................................................................................................12
Ref. 2: Wheel Set.................................................................................................................................13
Before Each Use..................................................................................................................................13
Operating Instructions........................................................................................................................14
After Each Use.....................................................................................................................................16
Maintenance ........................................................................................................................................17
Troubleshooting..................................................................................................................................18
Parts Diagram- Air Receiver Tank.....................................................................................................19
Parts List..............................................................................................................................................20
Parts Diagram- Pump..........................................................................................................................21
Parts List..............................................................................................................................................22
Replacement Parts..............................................................................................................................22
Limited Warranty.................................................................................................................................23

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Intended Use
The NorthStar 8-Gallon Electric Air Compressor provides compressed air used primarily for operating
air tools and pressuring other objects that require high air pressure, such as tires. Do not use for low-
pressure objects such as balloons, air mattresses, and sport balls, which can explode quickly and
easily. Special precautions are necessary when used for cleaning to prevent flying debris hazards. It
is not to be used to supply breathing air.
Packaging Contents
Air Compressor(1)
Air filter set(2)
Wheel set (2)
Operating Manual (1)
Technical Specifications
Property
Specification
Motor Voltage
115 Volts
Frequency
60 Hz
Motor Speed
1750 RPM
Amps
12A
Horsepower
1.5 HP
Max. Working Pressure
125 PSI
Volume Rating
3.1 CFM @125 PSI
4.0 CFM @90 PSI
5.4 CFM @40 PSI
Duty Cycle
70%
Noise Level (dB)
70
Receiver Capacity
8 gal.
Compressor Dimensions (Inch)
15.7 (L) x 15.4 (W) x 34.3 (H)
Net Weight (Lb.)
90
Important Safety Information
⚠WARNING
Read and understand all instructions. Failure to follow all instructions may result in serious injury
or property damage.
The warnings, cautions, and instructions in this manual cannot cover all possible conditions or
situations that could occur. Exercise common sense and caution when using this tool. Always be
aware of the environment and ensure that the tool is used in a safe and responsible manner.
Do not allow persons to operate or assemble the product until they have read this manual and
have developed a thorough understanding of how it works.
Do not modify this product in any way. Unauthorized modification may impair the function and/or
safety and could affect the life of the product. There are specific applications for which the product
was designed.
Use the right tool for the job. DO NOT attempt to force small equipment to do the work of larger
industrial equipment. There are certain applications for which this equipment was designed. This
product will be safer and do a better job at the capacity for which it was intended. DO NOT use

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this equipment for a purpose for which it was not intended.
Industrial or commercial applications must follow OSHA requirements.
⚠WARNING
This product may contain chemicals known to the state of California to cause cancer, birth defects,
or other reproductive harm.
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 chemically-treated 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 dust masks that are specially designed to filter out microscopic
particles.
Handling power cords on corded products may expose you to lead, a chemical known to the state
of California to cause cancer and birth defects or other reproductive harm. Wash your hands after
handling.
⚠WARNING
WORK AREA SAFETY
Inspect the work area before each use. Keep work area clean, dry, free of clutter, and well-lit.
Cluttered, wet, or dark work areas can result in injury. Using the product in confined work areas
may put you dangerously close to cutting tools and rotating parts.
Do not use the compressor where there is a risk of causing a fire or an explosion; e.g., in the
presence of flammable liquids, gases, or dust. The product can create sparks, which may ignite
the flammable liquids, gases, or dust.
Do not allow the compressor to come into contact with an electrical source. It is not insulated and
contact will cause electrical shock.
Keep children and bystanders away from the work area while operating the tool. Do not allow
children to handle the product.
Be aware of all power lines, electrical circuits, water pipes, and other mechanical hazards in your
work area. Some of these hazards may be hidden from your view and may cause personal injury
and/or property damage if contacted.
⚠WARNING
PERSONAL SAFETY

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Stay alert, watch what you are doing, and use common sense when operating the compressor. Do
not use the tool while you are tired or under the influence of drugs, alcohol, or medication. A
moment of inattention while operating the tool may result in serious personal injury.
Dress properly. Do not wear loose clothing, dangling objects, or jewelry. Keep your hair, clothing
and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving
parts. Air vents on the tool often cover moving parts and should be avoided.
Wear the proper personal protective equipment when necessary. Use ANSI Z87.1 compliant
safety goggles (not safety glasses) with side shields, or when needed, a face shield. Use a dust
mask in dusty work conditions. Also use non-skid safety shoes, hardhat, gloves, dust collection
systems, and hearing protection when appropriate. This applies to all persons in the work area.
Do not overreach. Keep proper footing and balance at all times.
Remove keys or wrenches before connecting the tool to an air supply, power supply, or turning on
the tool. A wrench or key that is left attached to a rotating part of the tool may cause personal
injury.
Secure the work with clamps or a vise instead of your hand when practical. This safety precaution
allows for proper tool operation using both hands.
⚠CAUTION
COMPRESSOR USE AND CARE
Do not force the compressor. Products are safer and do a better job when used in the manner for
which they are designed. Plan your work, and use the correct product for the job.
Check for damaged parts before each use. Carefully check that the product will operate properly
and perform its intended function. Replace damaged or worn parts immediately. Never operate the
product with a damaged part.
Do not use a product with a malfunctioning switch. Any power tool that cannot be controlled with
the power switch is dangerous and must be repaired by an authorized service representative
before using.
Disconnect the power/air supply from the product and place the switch in the locked or off position
before making any adjustments, changing accessories, or storing the tool. Such preventive safety
measures reduce the risk of starting the tool accidentally.
Store the product when it is not in use. Store it in a dry, secure place out of the reach of children.
Inspect the tool for good working condition prior to storage and before re-use.
Use only accessories that are recommended by the manufacturer for use with your product.
Accessories that may be suitable for one product may create a risk of injury when used with
another tool. Never use an accessory that has a lower operating speed or operating pressure than
the tool itself.
Keep guards in place and in working order. Never operate the compressor without the guards in
place.
Do not leave the compressor running unattended.

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Specific Operation Warnings
⚠WARNING
Moisture in supply air when compressed will form into droplets as it leaves air compressor pump
and enters receiver tank. When humidity is high or when a compressor is in continuous use for an
extended period of time, a significant amount of moisture will collect in the tank. Part of the
moisture will be discharged in the outlet air. When using a paint spray or sandblast gun, this water
will be carried from the tank through the hose, and out of the gun as droplets mixed with the spray
material. If this is not acceptable for your application, an external air dryer must be added to the
system.
The ideal operating temperatures is 40° and 100°F (4° and 37° C), the operating limitations is
15°F (-9°C) or above 125°F (52°C). If temperatures consistently drop below 32°F (0°C), install
within a heated building. If this not possible, protect the safety/relief and drain valves from
freezing.
The supply air is passing through the compressor supply hoses and tools. These can be damaged
or have a shortened life if unclean air is present or air filter is not clean and functioning properly.
Do not allow debris to accumulate or block airflow.
Do not place any objects against or on top of the unit, which can also block airflow or damage unit.
Rotating hazard. Keep hands and feet away from rotating parts, tie up long hair, remove jewelry,
and do not wear loose clothing.
ELECTRIC SHOCK HAZARD.
Use only undamaged electrical cords.
Do not touch bare wires or receptacles.
Do not operate air compressor in wet weather or in wet conditions.
Do not touch air compressor or cords if hands or feet are wet.
Ensure that all cords are free of damage before connecting to the power supply.
Ensure that you have a sufficient electrical supply for supporting the requirements of the motor.
⚠WARNING
HOT SURFACE AND FIRE HAZARD
The pump of the compressor will become very hot during and immediately after use. Do not touch
any part of the pump of this compressor with bare hands other than the ON/OFF switch during and
immediately after use.
Allow the air compressor to cool before touching it.
Provide access to adequate, clean, and unobstructed airflow for cooling and air supply.
Do not allow debris to accumulate or block airflow.
Do not operate with a tarp, blanket, or storage cover surrounding the machine, which blocks air
flow. Only place a cover on the air compressor after it has thoroughly cooled down.

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⚠WARNING
FLYING OBJECTS HAZARD
Always wear the proper protective equipment including ANSI Z87.1 compliant eye protection.
Air-powered equipment and power tools are capable of propelling items (metal chips, fasteners,
and particulates) at high speed into the air and could result in injury.
Never point the air stream at any part of your body, or at another person or animal.
When operating the air compressor, make sure all other people and animals maintain a safe
distance.
Do not move the air compressor when the air tank is under pressure.
Never use the air hoses to pull or move the air compressor.
For use on a hard, level surface capable of sustaining the weight of the compressor and any other
tools and people in the work area.
⚠WARNING
EXPLOSION HAZARD
To prevent injury or property damage, only use high-pressure hoses, fittings, and couplings
designed for use with air compressors.
Never use this compressor to inflate small low-pressure objects, i.e., balloons/inflatables, small or
low volume PSI tires. It is easy to over-pressurize them, causing them to rupture. Identify the
inflation capacity of an object prior to filling it with air. Use a gauge to check the pressure regularly
when inflating anything.
Inspect all hoses, fittings and couplings for leaks and wear. When leaks and wear are detected,
stop use immediately and replace those items before continuing use. Do not repair.
Never leave pressurized air in the air tank when performing maintenance.
Never leave the air compressor unattended with the power supply in use and the air hose
connected.
Improper care could lead to the air tank bursting or exploding.
Drain air tank daily or after each use to prevent moisture buildup in the air tank.
Rust can weaken the air tank and cause leaks or bursting. If rust is detected, replace tank
immediately. Do not try to repair the air tank by welding, drilling or modifying it in any other way.
These modifications can weaken the air tank and cause a hazardous condition.
Never make adjustments to factory-set pressures.
Never exceed manufacture’s maximum-allowable pressure rating attachments.
Because of extreme heat, do not use plastic pipe or lead tin solder joints for discharge line.

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⚠WARNING
EXPLOSION AND FIRE HAZARD
Do not use the compressor in the presence of gasoline, solvents, flammable liquids, or flammable
vapors. This compressor can produce sparks which can ignite flammable liquids and vapors,
causing fire or explosion.
Abrasive tools such as grinders, drills and other tools are capable of making sparks that can ignite
flammable materials, liquids and vapors causing fire or explosion.
Always operate the compressor at a safe distance away from flammable items. Use in well-
ventilated areas.
Do not exceed the maximum rated pressure.
Grounding
⚠WARNING
This machine must be grounded while in use to protect the operator from electrical shock. This
drill press is equipped with an electrical cord that has an equipment grounding conductor and a
grounding plug. The plug MUST be plugged into a matching receptacle that is properly installed
and grounded in accordance with ALL local codes and ordinances.
DO NOT MODIFY THE PROVIDED PLUG. If it will not fit the receptacle, have the proper
receptacle installed by a qualified electrician.
CHECK with a qualified electrician or service person if you do not completely understand the
grounding instructions, or if you are not sure the tool is properly grounded.
Grounded Tools: Tools with 3-Prong Plugs
Tools marked with Grounding Required have a 3-wire cord and 3-prong grounding plug. The plug
must be connected to a properly grounded outlet. If the tool should electrically malfunction or break
down, grounding provides a low resistance path to carry electricity away from the user, reducing the
risk of electric shock. (See Figure A.)
The grounding prong in the plug is connected through the green wire inside the cord to the grounding
system in the tool. The green wire in the cord must be the only wire connected to the tool’s grounding
system and must never be attached to an electrically live terminal.
Your tool must be plugged into an appropriate outlet, properly installed and grounded in accordance
with all codes and ordinances. The plug and outlet should look like those in the following illustration.

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Double Insulated Tools: Tools with Two-Prong Plugs
Tools marked Double Insulated do not require grounding. They have a special double insulation
system which satisfies OSHA requirements and complies with the applicable standards of
Underwriters Laboratories, Inc., the Canadian Standard Association, and the National Electrical Code.
(See Figure B.)
Double insulated tools may be used in either of the 120 volt outlets shown in the following illustration.
Extension Cords
⚠WARNING
USE A PROPER EXTENSION CORD. Make sure your extension cord is in good condition. When
using an extension cord, be sure to use one heavy enough to carry the current your product will
draw. An undersized cord will cause a drop in line voltage, resulting in loss of power and cause
overheating.
Be sure your extension cord is properly wired and in good condition. Always replace a damaged
extension cord or have it repaired by a qualified person before using it. Protect your extension
cords from sharp objects, excessive heat and damp or wet areas.
Grounded tools require a 3-wire extension cord. Double Insulated tools can use either a 2- or 3-
wire extension cord.
As the distance from the supply outlet increases, you must use a heavier gauge extension cord.
Using extension cords with inadequately sized wire causes a serious drop in voltage, resulting in
loss of power and possible tool damage.
The smaller the gauge number of the wire, the greater the capacity of the cord. For example, a
14-gauge cord can carry a higher current than a 16-gauge cord. Minimum extension cord wire
size is shown in the following table:
Minimum Wire Size Of Extension Cords
Nameplate AMPS
Cord Length
25'
50'
100'
150'
0-6
18 AWG
16 AWG
16 AWG
14 AWG
6-10
18 AWG
16 AWG
14 AWG
12 AWG
10-12
16 AWG
16 AWG
14 AWG
12 AWG
12-16
14 AWG
12 AWG
NOT RECOMMENDED
When using more than one extension cord to make up the total length, make sure each cord
contains at least the minimum wire size required.
If you are using one extension cord for more than one tool, add the nameplate amperes and use
the sum to determine the required minimum cord size.
If you are using an extension cord outdoors, make sure it is marked with the suffix W-A (Win
Canada) to indicate it is acceptable for outdoor use.

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Make sure your extension cord is properly wired and in good electrical condition. Always replace
a damaged extension cord or have it repaired by a qualified electrician before using it.
Protect your extension cords from sharp objects, excessive heat, and damp or wet areas.
Main Parts of Model 53009
1. Pressure Switch-Auto/Off switch: In AUTO position, compressor shuts off automatically when
tank pressure reaches maximum preset pressure. In OFF position, compressor will not operate.
Switch should be in OFF position when connecting or disconnecting power cord from electrical outlet.
NEVER attempt to adjust this pressure switch.
2. Pressure Switch Unloader: Vents discharge air to atmosphere in start/stop operation.
3. Check Valve: To seal off and maintain pressure after the top end pressure setting of pressure
switch is reached. The check valve works in conjunction with the pressure switch unloader to provide
a load-less start to the compressor system. A quick burst of air escaping from the pressure switch
unloader after an electric unit reaches top end indicates the check valve is working properly. If the
compressor has a mysterious leak after stopping that cannot be traced elsewhere, the check valve
may require servicing/replacing.
4. Air Tank Pressure Gauge: This pressure gauge indicates the reserve air pressure in the air tank.
5. 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 or equal to
the air tank pressure.

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6. Regulator: The air coming from the air tank is controlled by the regulator knob. Turn the regulation
knob clockwise to increase discharge pressure, and counter-clockwise to decrease discharge
pressure. Follow tool operating instruction for recommended pressure range.
7. ASME Safety Valve: The valve is designed to prevent system failure by relieving pressure from the
system when the compressed air reaches a predetermined level. The valve is preset by the
manufacturer and must not be modified in anyway. To verify the valve is working properly, pull on the
ring. Air pressure should escape. When the ring is released, it will reseat.
8. Discharge Tube: Carries compressed air form pump to check valve, and then to the storage tank.
It becomes very hot during use and can cause severe burns. Don’t touch.
9. Motor Overload: Motor has a protective breaker located on the pump. Excessive amperage draw
will result in the breaker tripping to protect the motor and operator. Reset the breaker by pushing the
black plastic stem back into the housing. Reset switch if it is tripped.
10. Compressor Air Filter: The air filter is designed to clean air coming into pump. To ensure the
pump continuously receives a clean, cool and dry air supply, this filter must always be clean and
ventilation opening free from obstructions.
11. Air Compressor Pump: Oil-free and no need to fill oil.
12. Air Receiver/Storage Tank: 8 gallon.
13. Tank Drain Valve: Used to remove moisture from air after compressor is shut off and air emptied
from tank. Drain moisture daily after each use.
Reference
Subassembly
1
Air Filter Set
2
Wheel Set
Ref. 1 Air Filter Set
1. Two sets of air filters are attached in the package of the compressor.
2. Remove the plastic cap plugged in the inlet port on cylinder head to assemble the air filter.
⚠WARNING
The plastic cap plugged in the inlet port on cylinder head has to be removed before assembling air
filters on otherwise the compressor will not produce air.

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Ref. 2: Wheel Set
1. Attach the tank wheels to the tank frame using the tank wheel bolts and o-rings in mounting
structure.
2. The convex side of the wheel rims has to face inwards toward the air tank.
⚠WARNING
The convex side of wheel rim has to face inwards to the air tank otherwise the wheel will get stuck
when moving the compressor.
Before Each Use
⚠WARNING
Failure to follow safety rules may result in serious injury or death to the operator or bystanders.
Inspect all hoses, fittings and couplings for leaks and wear. When leaks and wear are detected,
stop use immediately and replace those items before continuing use. Do not repair.
Never leave pressurized air in the air tank when performing maintenance.
Before starting the compressor, review the safety rules found above and throughout the manual.
Check to see that nuts and bolts are all snug. This must be done, as some fasteners may become
loose in transit.
Check that compressor is on a strong, stable level base.
Check that air filter is clean.
Do not place any materials on or against the compressor unit. Obstacle materials will limit the
cooling effect and could lead to premature failure.
Check the air compressor and piping systems for leakages and correct as required.
.

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Operating Instructions
⚠CAUTION
BREAK IN PERIOD
Before initial use, open the drain valve and run the compressor without air tools attached and
through open air for 20 minutes to break-in pump parts.
1. Verify that the pressure switch is in the OFF position.
2. Turn regulator counter clockwise to close.
3. Open the air receiver drain so that the air flow is permitted (for break-in period only).
4. Turn the pressure switch to the ON position to start the unit for no load operation. Allow the unit to
operate for a minimum of twenty minutes in no load condition (for break-in period only).
5. After running the compressor for twenty minutes (break-in period), close the drain valve and allow
the unit to reach maximum operating pressure. Ensure that the compressor shuts down at the preset
maximum pressure and the head pressure is released through the pressure switch.
⚠WARNING
HOT SURFACE AND FIRE HAZARD
The pump of the compressor will become very hot during and immediately after use. Do not touch
any part of the pump of this compressor with bare hands other than the ON/OFF switch during and
immediately after use.
Allow the air compressor to cool before touching it.
Provide access to adequate, clean, and unobstructed airflow for cooling and air supply.
Do not allow debris to accumulate or block airflow.
Do not operate with a tarp, blanket, or storage cover surrounding the machine, which blocks air
flow. Only place a cover on the air compressor after it has thoroughly cooled down.
⚠WARNING
FLYING OBJECTS HAZARD
Always wear the proper protective equipment including ANSI Z87.1 compliant eye protection.
Air-powered equipment and power tools are capable of propelling items (metal chips, fasteners,
and particulates) at high speed into the air and could result in injury.
Never point the air stream at any part of your body, at another person, or an animal.

Page 15 of 24
When operating the air compressor, make sure all other people and animals maintain a safe
distance.
Do not move the air compressor when the air tank is under pressure.
Never use the air hoses to pull or move the air compressor.
For use on a hard, level surface capable of sustaining the weight of the compressor and any other
tools and people in the work area.
6. Adjust regulator to desired pressure.
Note: This electric model is equipped with a pressure switch that automatically turns the motor off
when the tank pressure reaches its preset level. Once air pressure in the tank drops to a preset low
level, the pressure switch automatically turns the motor back on.
⚠WARNING
EXPLOSION HAZARD
To prevent injury or property damage, only use high-pressure hoses, fittings, and couplings
designed for use with air compressors.
Never use this compressor to inflate small low-pressure objects, i.e., balloons/inflatables, small or
low volume PSI tires. It is easy to over-pressurize them, causing them to rupture. Identify the
inflation capacity of an object prior to filling it with air. Use a gauge to check the pressure regularly
when inflating anything.
Inspect all hoses, fittings and couplings for leaks and wear. When leaks and wear are detected,
stop use immediately and replace those items before continuing use. Do not repair.
Never leave pressurized air in the air tank when performing maintenance.
Never leave the air compressor unattended with the power supply in use and the air hose
connected.
Improper care could lead to the air tank bursting or exploding.
Drain air tank daily or after each use to prevent moisture buildup in the air tank.
Rust can weaken the air tank and cause leaks or bursting. If rust is detected, replace tank
immediately. Do not try to repair the air tank by welding, drilling or modifying it in any other way.
These modifications can weaken the air tank and cause a hazardous condition.
Never make adjustments to factory-set pressures.
Never exceed manufacture’s maximum-allowable pressure rating attachments.
Because of extreme heat, do not use plastic pipe or lead tin solder joints for discharge line.
⚠WARNING
EXPLOSION AND FIRE HAZARD
Do not use the compressor in the presence of gasoline, solvents, flammable liquids, or flammable

Page 16 of 24
vapors. This compressor can produce sparks which can ignite flammable liquids and vapors,
causing fire or explosion.
Abrasive tools such as grinders, drills and other tools are capable of making sparks that can ignite
flammable materials, liquids and vapors causing fire or explosion.
Always operate the compressor at a safe distance away from flammable items. Use in well-
ventilated areas.
Do not exceed the maximum rated pressure.
For Malfunction During Operation: Immediately turn off the compressor if any of the following
conditions arise during operation:
•Excessive charge in motor speed, slow or fast
•Overheating
•Excessive vibration
•Unusual noise
•Flame or smoke
•Air leakage
Pull ring on safety valve to immediately relieve pressure.
After Each Use
⚠WARNING
Drain air tank daily or after each use to prevent moisture buildup in the air tank.
Rust can weaken the air tank and cause leaks or bursting. If rust is detected, replace tank
immediately. Do not try to repair the air tank by welding, drilling or modifying it in any other way.
These modifications can weaken the air tank and cause a hazardous condition.
Do not leave an operating machine unattended. Always shut the machine OFF and release the
pressure before leaving the machine. NEVER disconnect the high-pressure outlet hose from the
unit while the tank and airline are pressurized. A hazardous high pressure air stream will result as
receiver tank is quickly emptied.
1. Move the pressure switch to the OFF position.
2. Turn regulator counter clockwise to close.
3. Operate tools briefly to release live pressure.
4. Disconnect all tools.
5. Drain air receiver tank by pulling safety relief valve.
6. After all storage air discharges, disconnect hoses.
7. Once the tank pressure gauge registers under 10 PSI, open the drain valve on the bottom of the
tank to drain condensation moisture. .
8. Store the air compressor in a clean and dry location.

Page 17 of 24
Maintenance
⚠WARNING
Always disconnect, lock out, and tag the main power supply and then release air pressure from
the air tank before cleaning, adjusting, or servicing the compressor. Make sure all guards and
shields are replaced before re-starting.
Maintain the product by adopting a program of conscientious repair and maintenance in accordance
with the following recommended procedures. It is recommended that the general condition of any tool
be examined before it is used. Keep your tool in good repair. Keep all cutting tools sharp and clean.
Keep handles dry, clean, and free from oil and grease. The following chart is based on a normal
operation schedule.
Maintenance Interval
Maintenance Point
Daily checklist
Inspect and drain receiver tank.
Weekly checklist
Inspect safety/relief valves.
Inspect air filter.
Monthly
Clean and blow dust or dirt off pump fins and motor.
Inspect air system for leaks.
No Modifications. Never modify or alter the compressor in any way. Modifications can create serious
safety hazards and will void the warranty.
Inspect and Drain Receiver Tank. Drain water from the receiver tank daily. Water left in the tank can
cause the tank to weaken and corrode, increasing the risk of tank rupture. Badly rusted receiver tanks
must be replaced.
⚠WARNING
Failure to replace a rusted air receiver tank will eventually result in tank rupture or explosion,
which could cause substantial property damage, severe personal injury, or death. Never modify or
repair a tank. Obtain replacement from service center.
Inspect Safety Valve. This valve should be inspected and tested on a weekly basis.
Check the safety valve by pulling the rings. It is spring loaded and should not be stuck but
come out about 1/4”and then snap back into position when released.
Replace safety valves that do not operate freely with a valve of the same pressure rating.
⚠WARNING
If the safety valve does not work properly, over-pressurization may occur causing air tank rupture
or explosion. Occasionally pull the ring on the safety valve to make sure it operates freely.

Page 18 of 24
Inspect Air Filter. Inspect the compressor’s air filter on a weekly basis. A dirty air filter will not allow
the air compressor to operate at full capacity.
Clean air filter if dirty and restricted air flow.
Replace the air filter every 12 months or 1000 hours.
Note: Do not operate with the air filter removed.
Keep Compressor Clean. Do not allow air intakes to become blocked. If dust or debris accumulates
in the compressor, clean the compressor with a damp cloth or soft bristle brush.
Note: Do not spray compressor with a garden hose or pressure washer. Water may enter the
compressor and cause damage to the motor and pump.
Inspect Compressor for Air Leaks. Inspect system for air leaks on a monthly basis. To test:
Squirt soapy water around joints during compressor operation and watch for bubbles.
Developing bubbles indicate a leak is present.
Tighten fittings, if necessary.
⚠WARNING
If a part needs replacement, only use parts that meet the manufacturer’s part number
specifications. Replacement parts that do not meet specifications may result in a safety hazard or
poor operation of the compressor. Major service, including installation or replacement of parts,
should be made by a qualified electrical service technician.
Troubleshooting
Use the table below to troubleshoot problems before contacting service personnel or your local
dealer. If the problem continues after troubleshooting, call your local dealer for assistance.
Failure
Possible Cause
Corrective Action
Compressor won’t
start
Loose electrical connection
Check wiring connection
Fuse blew
Replace fuse
Compressor runs
continuously and
air flow lower than
normal
Malfunction in valves
Check inlet and exhaust valves
Loose tube of fittings
Tighten fittings
Restricted air filter
Clean or replace filter
Dirty or defective check valve
Remove and clean or replace check valve
Excessive air usage
Decrease air usage
Excessive moisture
in discharge
Excessive water in air tank
Drain tank, tilt tank to drain. Drain tank
more frequently.
High ambient temperature and / or humidity
Move compressor to area with less
humidity, or use airline filter.
Compressor runs
continuously
causing pressure
relief valve to open
Defect pressure switch or improper
adjustment
Check for proper adjustment and if problem
persists replace pressure switch
Defective pressure relief valve
Replace valve
Excessive noise
Loose valves
Inspect valve for damage

Page 19 of 24
Failure
Possible Cause
Corrective Action
Loose piping
Tighten as required
Foreign material on piston
Clean piston
Compressor over
heated
Undersized unit for air requirements
Contact your compressor distributor
Air leaks in the system
Fix leaks
Restricted air filter
Clean or replace filter
Worn or damage on valve
Clean or replace valves
Compressor will
not unload when
stopped
Pressure switch unloading valve may be
dirty or faulty
Clean, repair or replace pressure switch
Check valve may be dirty or faulty
Clean, repair or replace check valve
Parts Diagram- Air Receiver Tank

Page 20 of 24
Parts List
Reference
Part Number
Part Description
Quantity
1
3401X034B
Air tank
1
2
2405012
Drain valve
1
3
3433013-A
Rubber pad set
2
4
2B20-FM08
Hexagon head nut
2
5
2402054
Tank wheel
2
6
2N52-30*12
O-Ring
2
7
2418001
Tank wheel bolt
2
8
2414025
Check valve
1
9
2N06-01T02H
Unloading elbow
1
10
3B2-02*170F
Unloading tube set
1
11
2T02-04*0400
Exhaust soft tube
1
12
2N01-001
Nipple
1
13
2E21-AA256BP
Pressure switch
1
14
2B14-ST02E
Plug
3
15
2406021A
Pressure relief valve
1
16
2E04-010
Strain relief bushing
2
17
2408027
Regulator
1
18
2D12-20V200I1
Pressure gauge
2
19
07MSO1/4M-B
Quick coupler
2
20
2N06-02T02F
Exhaust elbow
1
21
2T06-025
Soft tube
1
22
3420114
Panel
1
23
2B02-FM5*010WB
Round head bolt
6
24
2B14-ST01E
Plug
1
25
3403173
Base
1
26
3439-WE11-A
Vibration absorber set
4
27
3B01-M06*075V
Hexagon bolt set
2
28
3432081A-A
Handle Set
1
29
2E02-2030502Y2T
Cable
1
30
2E01-012
Power cable
1