Ironton 20 Gallon Oil-Free Electric Air Compressor Owner's Manual
Model # AC1221
Thank You for Choosing Ironton®
For future reference, complete the owner's record below:
Serial Number/Lot Date Code: _________________________
Purchase Date: _________________________
Save the receipt, warranty, and this manual. Read the entire manual to become familiar with this product before 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. Northern Tool and Equipment strongly recommend that this product not be modified or used for any application other than for which it was designed. For technical questions, call 1-800-222-5381.
Contents
- Intended Use
- Packaging Contents
- Technical Specifications
- Safety Signal Words
- Important Safety Information
- Prop 65
- Work Area Safety
- Personal Safety
- Air Compressor Use And Care
- Specific Operation Warnings
- Air Tool Cautions
- Power Source Connection
- Power Requirements
- Grounding
- Grounded Tools: Tools with 3-Prong Plugs
- Extension Cords
- Main Parts of Air Compressor
- Getting Started
- Assembly
- Pre-Operation
- Before operating your air compressor:
- General Overview
- Installation and Location
- Before Each Use
- Accessories
- Operating Instructions
- Drain Valve
- Pressure Switch
- Adjusting the air pressure
- Shutting off your compressor
- Cold Weather Starting
- After Each Use
- Daily shut-down
- Maintenance
- Troubleshooting
- Warranty
Intended Use
The Ironton® 20 Gallon Electric Oil-Free Air Compressor is ideal for inflating tires, air mattresses, pool toys, and sports balls. The air compressor can be used for operating pneumatic tools including: air nailers, impact wrenches, air ratchets, drills, and cutting tools. It's perfect for medium to heavy automotive, farm, and shop-type applications. It features:
- Maximum Efficiency: High performance pump provides 125 max. psi for longer tool run times.
- Compact Power: Power and performance of a large compressor in a portable size.
- Efficient Operation: Low maintenance, oil-free pump produces cleaner air for tools.
Packaging Contents
- Air compressor and tank
- Handle
- Wheels
- Owner's Manual
Technical Specifications
Property | Specification |
---|
Model | AC1212 |
Lubrication Type | Oil-free |
Running Horsepower | 1.5 |
Voltage | 120 |
Hz-Single Phase | 60 |
Minimum Branch Circuit Requirement | 15 Amps |
Fuse Type | Time Delay |
Air Tank Capacity (Vertical) | 20 gallons (75.7 liters) |
Motor Speed | 3,400 RPM |
Maximum Operating Air Pressure | 125 psi |
Maximum Tank Air Pressure | 150 psi |
CFM @ 40 psi | 4.18 |
CFM @ 90 psi | 2.31 |
Fill Time: 0 psi To 40 psi | 1 Minute + 47 Seconds |
Fill Time: 0 psi To 90 psi | 6 Minutes + 47 Seconds |
Fill Time: 0 psi To 125 psi | 10 Minutes + 35 Seconds |
Recovery Time: 90 - 125 psi | 3 Minutes + 28 Seconds |
Cut In Operating Pressure | 90 psi |
Cut Out Operating Pressure | 125 psi |
Packaging Dimensions | 18" x 18" x 43.5" |
Item Dimensions (Inches) | 24.4" x 20" x 41" |
Tank Dimensions | 24.6" Height x 15.16" Diameter |
Watts At Cut Out / Amps At Cut Out | 565 W / 5.3 A |
Wheel Diameter | 8" |
Item Weight / Ship Weight | 72.5 lbs / 78 lbs |
Safety Signal Words
The definitions below describe the level of severity for each signal word. Please read the manual and pay attention to the following.
DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
NOTICE: Indicates important information, that if not followed, may cause damage to equipment.
Important Safety Information
- 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 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. This product will be safer and do a better job at the capacity for which it was intended. DO NOT use this equipment for a purpose for which it was not intended.
- Industrial or commercial applications must follow OSHA requirements.
Prop 65
This product can expose you to chemicals including DEHP, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Work Area Safety
WARNING
- 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 users dangerously close to cutting tools and rotating parts.
- Do not use the product 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 product to come into contact with an electrical source. The tool 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 view and may cause personal injury and/or property damage if contacted.
- Keep your work area clean and well lit. Ensure floors are not slippery from wax or dust.
- The compressed air directly from the compressor is not safe for breathing. The air stream may contain carbon monoxide, toxic vapors, or solid particles from the air tank. Breathing these contaminants can cause serious injury or death. Never use air obtained directly from the compressor to supply air for human consumption. The compressor is not equipped with suitable filters and in-line safety equipment for human consumption.
- Never drill into, weld or make any modifications to the air tank or its attachments. Never attempt to repair a damaged or leaking air tank. Replace with a new air tank.
- The air tank is designed to withstand specific operating pressures. Never make adjustments or parts substitutions to alter the factory set operating pressures.
- Over inflation of tires could result in serious injury and property damage. NOTE: Air tanks, compressors and similar equipment used to inflate tires can fill small tires very rapidly. Adjust pressure regulator on air supply to no more than the rating of the tire pressure. Add air in small increments and frequently use the tire gauge to prevent over inflation.
Personal Safety
WARNING
- Stay alert, watch what you are doing, and use common sense when operating the tool. Do not use the tool while 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.
- Work in an area with good cross ventilation. Read and follow the safety instructions provided on the label or safety data sheets for the materials being sprayed. Always use certified safety equipment: NIOSH/OSHA respiratory protection or properly fitting face mask designed for the specific application.
- 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.
- Never touch any exposed metal parts on compressor during or immediately after operation. The compressor will remain hot for several minutes after operation. Do not reach around protective shrouds or attempt maintenance until the unit has been allowed to cool.
- The compressed air stream can cause soft tissue damage to exposed skin and can propel dirt, chips, loose particles and small objects at high speed, resulting in property damage or personal injury. Never point any nozzle or sprayer toward any part of the body or at other people or animals.
Air Compressor Use And Care
CAUTION
- Do not force the air 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 product without the guards in place.
- Do not leave the tool running unattended.
- Drain the moisture from the tank on a daily basis. A clean, dry tank will help prevent corrosion.
- Pull the pressure relief valve ring daily to ensure that the valve is functioning properly, and to clear the valve of any possible obstructions.
- To provide proper ventilation for cooling, the compressor must be kept a minimum of 12 inches (31 cm) from the nearest wall, in a well-ventilated area.
- Fasten the compressor down securely if transporting is necessary. Pressure must be released from the tank before transporting.
- Protect the air hose and electric cord from damage and puncture. Inspect them weekly for weak or worn spots and replace if necessary.
- To reduce the risk of electric shock, do not expose to rain. Store indoors.
- Never operate the compressor if the power cord or plug are damaged. Take the equipment to the nearest Authorized Service Center and a specialized technician will replace it.
Specific Operation Warnings
- Repairs attempted by unqualified personnel can result in serious injury or death by electrocution. Any electrical wiring or repairs required on this product should be performed by authorized service center personnel in accordance with national and local electrical codes.
- Failure to provide adequate grounding to this product could result in serious injury or death from electrocution. Refer to Grounding Instructions paragraph in the Installation section. Make certain that the electrical circuit to which the compressor is connected provides proper electrical grounding, correct voltage and adequate fuse protection.
- Under some conditions and duration of use, noise from this product may contribute to hearing loss. Always wear certified safety equipment: ANSI S12.6 (S3.19) hearing protection.
- Exceeding the pressure rating of air tools, spray guns, air operated accessories, tires and other inflatables can cause them to explode or fly apart and could result in serious injury. Follow the equipment manufacturer's recommendation and never exceed the maximum allowable pressure rating of attachments.
- Drain air tank daily or after each use. If air tank develops a leak, replace it immediately with a new air tank or replace the entire compressor.
Air Tool Cautions
CAUTION
- DO NOT use air tools that are rated below the maximum rating of the compressor. Select air tools, air hoses, pipes, valves, filters and other fittings accordingly. DO NOT exceed manufacturer's rated safe operating pressures for these items.
- Make sure all hose connections are adequately secured to prevent tools or hose ends from being accidentally disconnected.
- Remove adjusting keys or wrenches before turning the tool on. A wrench or key that is left attached to a moving part of the tool may result in personal injury.
- Keep work area clean and well lit. Cluttered or dark work areas invite accidents.
- Keep children away. All children should be kept away from the work area. Never let a child handle a tool without strict adult supervision.
- Store idle tools out of the reach of children and untrained persons. Tools may be dangerous in the hands of untrained users.
- Do not operate any tool if under the influence of alcohol or drugs. Read warning labels on prescriptions to determine if your judgment or reflexes are impaired while taking drugs. If there is any doubt, do not attempt to operate.
- Do not force tool. Use the correct tool for your application. The correct tool will do the job better and safer at the rate for which it was designed.
- Do not use the tool if the switch does not turn it on and off. Any tool that cannot be controlled with the switch is dangerous and must be repaired.
- Check for damage. Check your tool regularly. If part of the tool is damaged it should be carefully inspected to make sure that it can perform its' intended function correctly. If in doubt, the part should be repaired. Refer all servicing to a qualified technician. Consult your dealer for advice.
- Maintain tools with care. Keep tools sharp and clean. Properly maintained tools, with sharp cutting edges, are less likely to bind and are easier to control.
Power Source Connection
Power Requirements
This tool is designed to operate on a properly grounded 120 volt, 60 Hz, single phase alternating current (AC) power source fused with a 15 amp time delayed circuit breaker. It is recommended that a qualified electrician verify the ACTUAL VOLTAGE at the receptacle into which the tool will be plugged and confirm that the receptacle is properly grounded. The use of the proper circuit size can eliminate nuisance circuit breaker tripping when using your tool. Improper performance, and/or, damage to the tool will result if operated on inadequate, or excessive power.
CAUTION: DO NOT OPERATE THIS TOOL if the ACTUAL power source voltage is less than 105 volts AC or greater than 132 volts AC.
Grounding
- This machine must be grounded while in use to protect the operator from electrical shock. This compressor 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. 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 with a standard 3-prong configuration (one round ground pin, two flat power pins).
Extension Cords
- For optimum air compressor performance an extension cord should not be used unless absolutely necessary.
- 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.
- 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.
- If you must choose between an electrical extension cord and a longer air hose, choose the latter. It is far better for the life of the compressor. If necessary, care must be taken in selecting an extension cord appropriate for use with your specific air compressor.
- The smaller the wire's gauge number, 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' |
---|
0-10 | 18 AWG | 16 AWG | 16 AWG | 14 AWG |
10-12 | 16 AWG | 16 AWG | 14 AWG | 12 AWG |
12-16 | 14 AWG | 12 AWG | NOT RECOMMENDED |
- Maximum length of extension cord for this compressor should be 50 feet (15 meters). Minimum wire size of extension cord should be 12 gauge.
- Use a heavy-gauge extension, since very thin or very long cord may cause voltage drop and result in loss of power in the compressor and overheating. Select a properly grounded extension cord which will mate direct with the power source receptacle and the air compressor power cord without the use of adapters. Make certain that the extension cord is properly wired and in good electrical condition.
- 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 (W in Canada) to indicate it is acceptable for outdoor use.
- 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 Description
The air compressor consists of several key components:
Label | Part Name | Description |
---|
A | Power Switch | Controls power to the motor and cut-in/cut-out pressure settings. Serves as Auto-On/Off positions. |
B | Tool Pressure Gauge | Indicates outgoing air pressure to the tool, controlled by the regulator. |
C | Tank Pressure Gauge | Indicates reserve air pressure in the tank. |
D | Tank Safety Valve | Allows excess tank pressure to escape into atmosphere. Opens only when tank pressure is above maximum rated pressure. |
E | Regulator | Controls air pressure from the tank. Turn knob clockwise to increase, counter-clockwise to decrease. |
F | Tank Drain Valve | Drains condensation from the tank, located at bottom. |
G | Air Intake Filter | Provides clean air to the pump; must be kept free of debris. Check daily. |
H | Check Valve | Retains air pressure inside the tank when pump is not operating. |
I | Quick Connect | Offers quick release for attaching/removing air hose. |
J | Outlet Tube | Transfers pressurized air from pump to tank. |
K | Handle | For transportability. |
L | Handle Bolts | Allows attachment/removal of handle for storage. |
M | Wheels | Allow easy portability. |
N | Rubber Foot | Provides anti-vibration and stability. |
O | Air Tank | 20 gallons (75.7 liters) capacity. |
Visual description of the main parts: The air compressor is a vertical tank unit with two wheels at the base (M) and a rubber foot (N) for stability. A handle (K) is attached at the top for portability. On the top section of the tank, there's the main compressor unit. Visible components include the Power Switch (A), Tool Pressure Gauge (B), Tank Pressure Gauge (C), Tank Safety Valve (D), Regulator (E), Air Intake Filter (G), Check Valve (H), Quick Connect (I), and Outlet Tube (J). The Tank Drain Valve (F) is located at the very bottom of the tank.
Further Functional Information
TANK SAFETY VALVE
The safety valve automatically relieves pressure from the air tank in the event of excessive pressure build up. It is preset at the factory. Do not attempt to make any adjustments to the safety valve. Periodically pull the ring on the safety valve end to check that it is working properly.
PRESSURE
Controlled by the red-tipped power switch which turns the air compressor on and off. When the switch is pulled up to the "Auto / On" position, the pressure switch is engaged and will start the compressor pump automatically when tank pressure is below the factory-set minimum. The pressure switch continues to monitor the pressure and turns the pump off when the pressure reaches the factory-set maximum. Compressor is turned on when pushed down, the pump is off.
NOTICE: Always make sure that the compressor power switch is in the OFF position before performing any maintenance or plugging the compressor into a power supply.
TANK DRAIN VALVE
(located on bottom of tank) - The tank drain valve can be opened to allow moisture and compressed air to be released from the air tank.
WARNING: The tank drain valve should always be opened slowly to avoid damage to equipment and possible injury.
Getting Started
- Unpack the air compressor.
- Inspect the unit for damage. If the unit has been damaged in transit, contact the carrier and complete a damage claim immediately due to time limitations.
- Check the compressor's serial label to ensure you have received the model ordered, and that it has the required pressure rating for its intended use.
- Before operating your tool, check the contents of the box to make sure you have everything you will need. Items included: Air Compressor, Handle and bolts, 2 Wheels, washers and nuts, Owner's Manual.
NOTICE: Save packaging in case you need to return the compressor for servicing or repair.
Assembly
NOTICE: Before performing any assembly or maintenance, make sure compressor is turned off and unplugged from the power supply.
Place compressor on level ground. It is designed to function properly at an incline of no greater than 15 degrees.
Pre-Operation
Before operating your air compressor:
- Inspect for damage before using the air compressor; make sure the air tank is not damaged, inspect all parts for damage and check that all pipes and hoses are firmly connected.
- Do not use the air compressor if any damage is found. If damaged, have an authorized service center inspect and test the air compressor to ensure that is working properly.
- Pull the ring on the safety valve before each use to make sure the valve is functional.
- Depending on the CFM draw of the tools being operated, your new air compressor can be used for operating paint sprayers, air tools, grease guns, airbrushes, caulking guns, abrasive blasters, tire & plastic toy inflation, spraying weed killer and insecticides, etc. Proper adjustment of the air pressure regulator is necessary for all of these operations. Refer to the air pressure specifications provided with the tool you are using.
General Overview
Installation and Location
Locate the compressor according to the following guidelines:
- Position the compressor near a grounded electrical outlet.
- The compressor must be at least 12 to 18 inches (31 - 45 cm) from any wall or obstruction which would interfere with airflow, in a clean, well-ventilated area, to ensure sufficient air flow and cooling.
- In cold climates, store portable compressors in a heated building when not in use; a temperature-controlled area between 32° and 95° Fahrenheit (0° and 35 °C). This will reduce problems with the motor starting and freezing from water condensation.
- Remove the compressor from the carton and place it on the floor or a hard, level surface. The compressor must be level to ensure proper drainage of the moisture in the tank.
- The compressor is designed with heat dissipation fins which allow for proper cooling. Keep the fins (and all other parts which collect dust or dirt) clean. A clean compressor runs cooler and provides longer service. Do not place rags, containers or other material on top of the compressor. The air filter intake should be free of any debris or obstructions. Check the air filter on a daily basis to make sure it is clean and in working order.
Before Each Use
WARNING
- Risk of unsafe operation. Firmly grasp air hose in hand when installing or disconnecting to prevent hose whip.
- Risk of unsafe operation. Do not use damaged or worn accessories.
- Risk of bursting. Too much air pressure causes a hazardous risk of bursting. Check the manufacturer's maximum pressure rating for air tools and accessories. The regulator outlet pressure must never exceed the maximum pressure rating.
DUTY CYCLE: This air compressor pump is capable of running continuously. To prolong the life of your air compressor, it is recommended that a 50%-75% average duty cycle be maintained; that is, the air compressor pump should not run more than 30-45 minutes in any given hour.
Accessories
Accessories for this unit are sold separately.
Attaching an air hose
Your air compressor is supplied with a 1/4" push-connect air coupler. With a factory-installed air coupler, your compressor is ready to accept air hoses equipped with 1/4" male air connectors.
NOTICE: Use only air hoses rated for use with 150 psi air pressure or higher.
To install any air hose equipped with a 1/4" male connector:
- Simply push the "connector" or "plug" into the fitting and it automatically engages.
- Verify that air hose is securely connected to air coupler by pulling on the air hose.
Visual description of air coupler and hose connection: A close-up view shows a quick-connect air coupler with a male air hose connector being inserted. The coupler has a collar that slides back to release the connection and forward to lock it in place, ensuring an airtight seal.
Operating Instructions
WARNING: Risk of bursting. If any unusual noise or vibration is noticed, stop the compressor immediately and have it checked by a trained service technician.
Daily start-up
- Set the Power Switch to the OFF (0) position.
- Inspect the air compressor, air hose, and any accessories/tools being used for damage or obstruction. If any of these mentioned items need repair/replacement, contact the local authorized dealer before use.
- Close the drain valve.
Drain Valve
- Make sure the tank drainage valve is closed and not in the open position.
Visual description of drain valve: A close-up view shows the drain valve located at the bottom of the air tank. It appears as a small brass valve with a handle that can be turned to open or close it, allowing condensation and air to be released.
Pressure Switch
- Check that the red pressure switch button is pushed down to the OFF position.
- Ensure that the power supply you are going to use is operating normally.
- Insert the power supply cord into the power supply socket.
- Turn the pressure switch on, pulling the red button up to the ON position.
- On the tank pressure gauge, watch pressure build in the tank until the pump stops at the factory-set pressure, about 115 to 125 psi.
- This first time running your compressor and periodically thereafter, check for air leaks. If the gauge indicates pressure is going down in the tank or you hear leakage, apply soapy water to all joints in the air transport piping. Tighten these joints if bubbles form.
Visual description of pressure switch: A close-up view shows the red pressure switch button on top of the compressor unit. It has "ON" and "OFF" markings, indicating its function to control the compressor's operation.
Adjusting the air pressure
Your air compressor is supplied with an air pressure regulator. This regulator adjusts the air pressure supplied to the tools through the hose.
- To increase air pressure, turn air regulator knob clockwise.
- To decrease air pressure, turn air regulator knob counterclockwise.
- Use the outlet pressure gauge to see the resulting pressure.
Visual description of regulator and gauges: A close-up view shows the regulator knob (E) and the outlet pressure gauge (B) on the compressor. The regulator knob is typically large and rotatable, allowing for easy adjustment of the output air pressure, which is then displayed on the gauge.
Shutting off your compressor
- Push the red pressure switch button down to the OFF position.
- Unplug the compressor from the electrical power.
- If not draining the tank, reduce tank pressure through the air hose.
- Drain the tank by slowly opening the drain valve. Place a catch basin under the valve to protect the surface from water damage.
Cold Weather Starting
Temperatures below freezing (32 °F / 0 °C) cause the metal parts of your air compressor to contract and that makes starting more difficult. To assist the air compressor in starting in cold weather, follow these tips:
- Try to keep the air compressor stored in temperatures above 32 °F (0 °C).
- Open the air tank drain valve and release all air pressure from the air tank before attempting to start in cold weather. (After air is released from air tank, close drain valve.)
- Pull the ring on the safety valve before each use to make sure the valve is functional.
- Plug the air compressor directly into a 120 volt electrical outlet. Do not use an extension cord when starting your air compressor in cold weather.
After Each Use
WARNING
- Risk of unsafe operation. Firmly grasp air hose in hand when installing or disconnecting to prevent hose whip.
- Risk of bursting. Drain air tank daily. Water will condense in air tank. If not drained, water will corrode and weaken the air tank causing a risk of air tank rupture.
Daily shut-down
- Set the Power Switch to the OFF (0) position.
- Unplug the power cord from the receptacle.
- Set the outlet pressure to zero on the regulator.
- Remove any air tools or accessories.
- Open the drain valve allowing air to bleed from the tank. After all of the air has bled from the tank, close the drain valve to prevent debris build-up in the valve.
Maintenance
NOTICE: To ensure efficient operation and longer life of the air compressor unit, a routine maintenance schedule should be followed. The following schedule is geared toward a consumer whose compressor is used in a normal working environment on a daily basis.
WARNING
- Risk of unsafe operation. 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.
- Risk of bursting. If the safety valve does not work properly, over-pressurization may occur, causing air tank rupture or an explosion.
- Risk of burn. Tubes, pump head, and surrounding parts are very hot; do not touch these. Allow compressor to cool prior to servicing.
- Risk from flying objects. Always wear certified safety equipment: ANSI Z87.1 eye protection (CAN/CSA Z94.3 with side shields).
- Risk from noise. Use ear protection ANSI S12.6 (S3.19) as air flow noise is loud when draining.
- Risk of bursting. 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.
- This compressor is equipped with an automatic reset thermal overload protector which will shut off the motor if it becomes overheated. If the thermal overload protector is actuated, the motor must be allowed to cool down before start-up is possible. NOTE: To reset the motor overload, turn the power switch to the OFF position and unplug the unit from the power outlet. Allow 10 minutes (minimum) for motor overload cut-out to cool and reset. Unit can then be plugged in and re-started.
Checking the Safety Valve
Check the safety valve by performing these three steps:
- Plug the compressor in and run until shut-off pressure is reached.
- Wearing safety glasses and hearing protection, pull out on the safety valve ring to release pressure from the tank.
- The safety valve should close automatically at approximately 40-50 psi. If the safety valve does not allow air to be released when you pull out on the ring, or does not close automatically, it must be replaced.
Visual description of safety valve: A close-up view shows the safety valve, typically a brass component with a pull-ring, located on the air tank. It is designed to release pressure when pulled, and automatically close at a certain pressure threshold.
Storage
To store the air compressor, be sure to do the following:
- Turn the unit off and unplug the power cord from the receptacle.
- Remove all air hoses, accessories, and air tools from the air compressor.
- Perform the daily maintenance schedule.
- Open the drain valve to bleed all air from the tank.
- Close the drain valve.
- Protect the electrical cord and air hose from damage (such as being stepped on or run over). Wind them loosely around the compressor handle.
- Store the air compressor in a clean, cool, dry, safe, and indoor location.
Troubleshooting
Always inspect the compressor before use, and make sure it is in good working condition. Make sure all air vents are clear. Check the power cable to make sure it is intact and free from cracks, bare wires etc. Avoid using solvents when cleaning plastic parts, most plastics are susceptible to damage from the various types of commercial solvents.
Trouble | Possible Cause | Corrective Action |
---|
Compressor will not start | 1. Blown fuse or circuit breaker tripped 2. Loose electrical connections | 1. Replace or reset fuse/circuit breaker 2. Check wiring connections |
Low pressure | 1. Restricted air filter 2. Defective check valve 3. Air leak in safety valve | 1. Replace air filter 2. Replace check valve 3. Check valve by pulling on ring. If condition persists, replace valve |
Safety valve releases | Defective pressure switch | Replace pressure switch |
Pressure in tank falls | 1. Air leaks at joints | 1. Allow the compressor to build pressure in the tank, to the max pressure if possible. Spray or brush soapy water on all air connections and look for bubbles. Tighten leaky connections. Do not over-tighten. 2. If the problem continues, contact customer support for further advice. |
Unloader valve leaks when pump is not running | Unloader valve seal defective | Allow air in the air tank out until all pressure is released. Remove the unloader valve plug and clean the valve seal. If damaged, replace seal and re-install. |
Compressor stopped and will not re-start | 1. Thermal overload protector has engaged due to motor overheating 2. Motor windings burn-out | 1. Check that the main supplied voltage corresponds to the compressor specifications. An inadequate extension cord (too thin or too long) can cause the motor to overheat due to voltage drop. Excessive use (over 1 hour continuous) can cause motor overheating. Allow the motor to cool down. 2. Contact customer support |
Motor does not start and makes a humming sound | Capacitor burn-out | Contact customer support |
Motor does not start or starts slowly | Low voltage electrical supply to motor | Check that the main supplied voltage corresponds to the compressor specifications. An inadequate extension cord (too thin or too long) can cause the motor to overheat due to voltage drop. Check power quality at outlet |
Compressor runs noisily and metallic sounds are heard | Head gasket or reed valve damaged. | Stop the compressor and contact customer support |
Compressor doesn't provide as much air as when new and/or cuts off after a much shorter time period. | 1. Tank has reduced capacity due to water retention 2. Pressure switch is out of adjustment | 1. Open drain valve to release water 2. Contact customer support |
Pump unit does not stop when the tank reaches maximum working pressure. | Defective or pressure switch out of adjustment | Stop the compressor immediately (risk of explosion) and contact customer support |
For technical questions, please call 1-800-222-5381.
Warranty
Two year limited warranty
Distributed by Northern Tool + Equipment Co., Inc. Burnsville, Minnesota 55306. NorthernTool.com. Made in Vietnam.