Airmaster 24L Oil-Free Air Compressor

Introduction

Thank you for purchasing this Air Compressor. Before attempting to operate the machine, it is essential that you read this manual thoroughly and carefully follow all instructions given. In doing so you will ensure the safety of yourself and that of others around you, and you can also look forward to the product giving you long and satisfactory service.

Specifications

Please note that the details and specifications contained herein are correct at the time of going to print.

Guarantee

This product is guaranteed against faulty manufacture for a period of 12 months from the date of purchase. Please keep your receipt as proof of purchase.

This guarantee is invalid if the product is found to have been abused or tampered with in any way, or not used for the purpose for which it was intended. Faulty goods should be returned to their place of purchase, no product can be returned to us without prior permission.

This guarantee does not affect your statutory rights.

General Safety Warnings

WARNING: WHEN USING ELECTRICAL TOOLS, BASIC SAFETY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK AND PERSONAL INJURY

WARNING: READ ALL THESE INSTRUCTIONS BEFORE ATTEMPTING TO OPERATE THIS PRODUCT AND KEEP THESE INSTRUCTIONS IN A SAFE PLACE.

Work Area

1. Keep the work area clean and well lit. Floors should always be kept clear. Cluttered or dark areas invite accidents.
2. Keep children and bystanders away while operating a power tool. Distractions can cause loss of control.
3. The compressor should only be used in areas with adequate ventilation and should not be exposed to heat or used near flammable substances.

Personal Safety

1. ALWAYS stay alert, watch what you are doing and use common sense when operating the compressor. Do not use the compressor while you are tired or under the influence of medication, drugs or alcohol. A moment of inattention can result in personal injury.
2. ALWAYS use eye protection when operating compressed air equipment, and ensure that others in the work area are protected from flying particles from the front and from the side.
3. ALWAYS protect yourself against electric shock. NEVER operate the compressor in wet or damp locations.
4. NEVER over-reach. Keep your proper footing and balance at all times to enable better control of the compressor in unexpected situations.
5. NEVER attempt any complex repairs yourself. If you have a technical problem, contact your local dealer.
6. ALWAYS store the compressor out of reach of children.
7. ALWAYS protect your hearing. Ear protection should be worn when operating this compressor and its associated power tools.
8. NEVER direct the air stream at people or animals, as injury may result. Compressed air can cause soft tissue damage and propel dirt and other particles at high speed.
9. NEVER insert your fingers or other objects inside the motor housing. NEVER operate the compressor without the cover in place.

General Machine Use and Care

1. Prior to use, all operators should become familiar with the instructions in this booklet, especially the ON/OFF switch for emergency stopping.
2. ALWAYS maintain the compressor with care and keep it clean for best / safest performance.
3. NEVER use this compressor if any part is damaged. Have it inspected and repaired by your dealer.
4. NEVER attempt to modify the air compressor, tank, fittings or attachments in any way. Doing so will invalidate the guarantee and could result in personal injury.
5. NEVER abuse the power cable. Never pull on the cable when removing the plug from the socket, or lift the compressor by the power cable.
6. ONLY use extension leads that are of an appropriate power rating and suitable for the work environment. Extension leads must have an earth connection. Inspect the extension lead regularly and replace if damaged.
7. ONLY USE RECOMMENDED PARTS: To avoid the risk of bursting, only hoses with a rated pressure of 10 bar, or more should be used. NEVER attempt to repair damaged hoses.
8. NEVER abuse the compressor by standing on it.

Airline Hoses

1. ALWAYS ensure that equipment or power tools used in conjunction with the compressor have a safe working pressure exceeding that of the machine.
2. ALWAYS keep the air hose away from any attached power tools and ensure that the operator is not restricted by the length of the hose.
3. ALWAYS take care when a long air hose is required in the work area as it presents a trip hazard. Coil the hose away as soon as the job is finished.
4. ALWAYS avoid kinking or trapping the air hose. ALWAYS replace faulty hoses and never attempt a repair if a leak is detected.
5. NEVER abuse hoses or connectors. NEVER carry an air tool by the hose, or yank it to disconnect from the air supply. Keep hoses away from heat, oil and sharp edges. Check hoses for leaks or worn condition before use and ensure that all connections are secure.
6. ALWAYS ensure that the air supply is turned off at the machine outlet and any air pressure vented from within the compressor and any attached equipment when disconnecting air hoses or other equipment.

Air Compressor Safety Instructions

1. ONLY USE WITHIN THE RECOMMENDED OPERATING TEMPERATURE RANGE: This compressor should only be used in an ambient temperature of between +5°C and +40°C (never at or below freezing temperatures).
2. NEVER USE AN AIR COMPRESSOR WHICH APPEARS DEFECTIVE OR IS OPERATING ABNORMALLY: If the compressor operates unusually or makes strange noises, switch off immediately and purge the air reservoir. Arrange repairs with your nearest dealer.
3. BREATHING QUALITY AIR: This compressor should not be used to supply breathing quality air.
4. SAFETY VALVE: NEVER remove or attempt to adjust the safety valve. The maximum pressure is factory set. Keep the safety valve free from paint and other accumulations.
5. AVOID UNINTENTIONAL STARTING: DO NOT move the compressor when it is connected to the mains power supply.
6. BEFORE EACH USE CHECK THE COMPRESSOR AND HOSE FOR DAMAGED PARTS: Never use the compressor if it has been damaged in any way. Have the compressor repaired by a qualified service engineer. DO NOT use the compressor if the On/Off switch does not operate correctly.
7. KEEP THE MOTOR AIR VENTS CLEAR: Keep the motor vents clear and free from dust. Wipe regularly to maintain an adequate supply of clean air and avoid using in dusty conditions.
8. OPERATE THE COMPRESSOR AT THE CORRECT VOLTAGE: Make sure that the mains supply voltage is the same as the voltage shown on the label.
9. ALWAYS adjust the pressure regulator to the recommended setting for the particular spray gun or air tool being used.
10. When using the compressor for painting:
    • DO NOT work in enclosed areas or near naked flames.
    • Ensure that the area in which you are working has good ventilation.
    • Protect your nose and mouth with a suitable face mask.
    • ALWAYS check the safety data sheets for substances being sprayed & ensure manufacturer's instructions are followed.
11. DO NOT USE THIS COMPRESSOR TO INFLATE SMALL, LOW-PRESSURE OBJECTS: Items such as children's toys or footballs can explode if over-inflated.
12. NEVER STOP THE COMPRESSOR BY REMOVING THE PLUG OR SWITCHING OFF AT THE MAINS SUPPLY: ALWAYS use the On/Off switch on the compressor.

Safety Symbols

The following safety symbols are shown on the product or its packaging. Please read all of the safety and operating instructions carefully before use.

• Read this instruction booklet carefully before positioning, operating or adjusting the compressor.
• High Sound Level: This compressor produces a high sound level during operation. Ear protection should be worn. ?
• Hot Surfaces: This compressor contains surfaces which may get hot during operation. Never operate with the motor housing removed. ?
• Risk of Accidental Start-up: The compressor could start automatically in the event of a power cut and subsequent reset. DO NOT carry the compressor while it is connected to the power source, or when the receiver is filled with compressed air. ⚠️
• Risk of Electric Shock: The compressor must be disconnected from the mains supply before removing any covers. DO NOT use in a damp environment. ⚡

Electrical Connections

WARNING! READ THESE ELECTRICAL SAFETY INSTRUCTIONS THOROUGHLY BEFORE CONNECTING THE PRODUCT TO THE MAINS SUPPLY.

Before switching the product on, make sure that the voltage of your electricity supply is the same as that indicated on the rating plate. This product is designed to operate on 230VAC 50Hz. Connecting it to any other power source may cause damage.

This product may be fitted with a non-rewireable plug. If it is necessary to change the fuse in the plug, the fuse cover must be refitted. If the fuse cover becomes lost or damaged, the plug must not be used until a suitable replacement is obtained.

If the plug has to be changed because it is not suitable for your socket, or due to damage, it should be cut off and a replacement fitted, following the wiring instructions shown below. The old plug must be disposed of safely, as insertion into a mains socket could cause an electrical hazard.

WARNING! THE WIRES IN THE POWER CABLE OF THIS PRODUCT ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: BLUE = NEUTRAL BROWN = LIVE YELLOW AND GREEN = EARTH

If the colours of the wires in the power cable of this product do not correspond with the markings on the terminals of your plug, proceed as follows:

• The Blue wire must be connected to the terminal marked N or coloured Black.
• The Brown wire must be connected to the terminal marked L or coloured Red.
• The Yellow and Green wire must be connected to the terminal marked E or coloured Green.

Plug must be BS1363/A approved.

Wiring Diagram:

• Earth: (Green and Yellow)
• Neutral: (Blue)
• Live: (Brown)

Ensure that the outer sheath of the cable is firmly held by the clamp.

We strongly recommend that this machine is connected to the mains supply via a Residual Current Device (RCD). If in any doubt, consult a qualified electrician. DO NOT attempt any repairs yourself.

Before Use

Attaching the Wheels

Use a spanner and X-head screwdriver to attach the wheels to the compressor. Use the parts in the positions shown.

Diagram Description: Shows the rear of the compressor tank with a wheel being attached. Components labeled: Wheel, Washer, Spindle, Spring Washer, Nut.

Attaching the Supporting Foot

Insert the support foot into the position shown and secure with the bolt, nut and washers supplied.

Diagram Description: Shows the underside of the compressor tank with the supporting foot being attached using a bolt, nut, and washers.

Pre-Connection Checks

Before connecting your compressor to the power supply, check the following:

• Set the ON/OFF switch to the OFF position (pushed down). ⬇️
• Make sure that the compressor is on level ground.

Moving the Air Compressor Around

⚠️ CAUTION: TO PREVENT INJURY, ASSISTANCE MAY BE HELPFUL WHEN LIFTING THIS COMPRESSOR.

1. Stop the compressor and disconnect it from the power supply before you move it.
2. ALWAYS use the handle. To prevent damage, never lift by (or put strain on) valves or hoses.

Operation

If the compressor has not been used for more than 24 hours, open the drain valve (on the bottom of the reservoir) and drain any condensate which has collected. See page 12.

Attaching Air Tools

⚠️ WARNING: BEFORE CONNECTING AIR TOOLS, MAKE SURE THAT YOU READ THE INSTRUCTIONS SUPPLIED WITH THE TOOL, ALSO ENSURE THAT THE TOOL IS SUITABLE FOR USE WITH THE COMPRESSOR AND HOSE SPECIFICATIONS.

1. Attach the air hose to the 1/4" BSP outlet valve.
2. Attach the tool to the end of the air hose.
3. Turn the outlet valve handle to the open position. ➡️

NOTE: The outlet valve is shown without the air hose fitted for clarity.

Diagram Description: Shows two views of the outlet valve assembly. The first view shows the valve without a hose attached. The second view shows the valve handle in the 'Closed' position and indicates the 'Open' position.

Turning the Compressor On

1. Plug the compressor into the power supply.
2. Lift the On/Off button. ⬆️
   • The compressor will operate until the reservoir is fully pressurised and then shut down.
   • The compressor will start up again when the pressure in the reservoir decreases.

Diagram Description: Close-up of the On/Off button on the handle, shown in the 'Up' (On) position.

Check the Safety Valve

To make sure that the safety valve works correctly:

1. Unscrew the knurled end and pull it firmly outwards. ➡️
   • Air will be released when you pull the cap out and stop when released.
2. If the valve does not operate in this way, do not use the compressor. The compressor must be repaired by your dealer.
3. Screw the knurled end cap back into position.

WARNING: DO NOT REMOVE OR TRY TO ADJUST THE SAFETY VALVE.

Set the Output Pressure

Use the pressure regulator to set the output pressure of the left-hand outlet valve.

• Turn clockwise to increase the pressure. ⬆️
• Turn counterclockwise to decrease the pressure. ⬇️

Diagram Description: Shows the pressure regulator and outlet valve assembly. Labels indicate 'Pressure Regulator' and 'Outlet Valve'.

The Pressure Gauges

1. The reservoir pressure gauge shows the current pressure in the reservoir.
2. The outlet pressure gauge shows the 'user set' outlet pressure. This can be adjusted as shown above.

Diagram Description: Close-up of the two pressure gauges on the compressor. One is labeled 'Tank Pressure Gauge' and the other 'Outlet Pressure Gauge'. The gauges show pressure readings in kPa, kg/cm², Lb/in², and BAR.

Removing Air Driven Tools from the Air Hose

WARNING: ALWAYS SET THE PRESSURE REGULATOR TO ZERO BEFORE YOU REMOVE OR REPLACE A TOOL.

1. Push down on the On/Off button to stop the compressor. ⬇️
2. Turn the outlet valve handle to the off position.
3. Operate the air tool to depressurise the air hose.
4. Disconnect the air tool from the hose.

Diagram Description: Shows the On/Off button in the 'Down' (Off) position. Also shows the outlet valve handle in the 'Closed' position.

Turning the Compressor Off

1. Follow steps 1-3 in "Removing Tools from the Air Hose" above.
2. Disconnect the compressor from the power supply.
3. Slowly open the outlet valve to depressurise the reservoir. ➡️
   • You will hear a hissing sound as the reservoir depressurises.
   • DO NOT leave the compressor unattended if the reservoir is pressurised.

Diagram Description: Close-up of the On/Off button on the handle, shown in the 'Down' (Off) position.

Draining the Air Reservoir

⚠️ CAUTION: YOU SHOULD DRAIN THE AIR RESERVOIR AFTER EACH DAY'S USE AND BEFORE YOU PUT YOUR COMPRESSOR INTO STORAGE.

1. Turn the compressor off and disconnect from the power supply.
2. Put a container below the drain valve to collect the condensate.
3. Open the drain valve slowly. ➡️
   • Condensation will drain from the reservoir.
4. Close the drain valve when the reservoir has fully drained.

Diagram Description: Shows the drain valve located at the bottom of the air compressor tank. An arrow indicates the direction of opening the valve.

Reset Button

This compressor has a thermal overload device. If the motor gets too hot, the thermal overload device cuts the power, which prevents damage to the motor. If the thermal overload device operates, let the motor cool down for 5 minutes and then push the reset button.

If you start the compressor and the overload cutout operates again, stop the compressor and disconnect from the power supply and have your compressor examined by a qualified service agent.

Diagram Description: Shows the location of the reset button on the compressor motor housing, indicated by an arrow.

Maintenance

Drain the Reservoir (Daily)

After use, always open the drain valve to make sure that any condensate is drained off as shown on page 12.

Cleaning

Keep the compressor free of dirt and dust as far as possible. Wipe with a clean cloth or blow it down with compressed air at low pressure. If cleaning is required, use a damp cloth and some soft soap. DO NOT use cleaning agents or solvents as these may be aggressive to the plastic parts. ALWAYS disconnect the hose and any air tools from the compressor before cleaning.

Checking the Non-Return Valve

If the reservoir pressure decreases for no apparent reason, it is possible that the non-return valve is leaking. To check:

1. Make sure that the reservoir is not under pressure and the compressor is switched OFF.
2. Examine the non-return valve, and replace the gasket and valve if necessary.

Diagram Description: Shows the non-return valve assembly on the compressor tank. Components labeled: Valve, Spring, Gasket.

Storage

Disconnect the mains plug and ventilate the compressor and any connected pneumatic tools. Store the compressor upright in a dry location.

Environmental Recycling Policy

♻️ By purchasing this product, the customer is taking on the obligation to comply with current WEEE regulations.

This means that this product must not be disposed of with general household waste. It must be disposed of according to the laws governing Waste Electrical and Electronic Equipment (WEEE) at a recognised disposal facility.

This product contains valuable raw materials. Metal products should be taken to your local civic amenity site for recycling of metal products.

Troubleshooting

⚠️ CAUTION: DO NOT TRY TO REPAIR OR ADJUST THIS COMPRESSOR IF YOU ARE UNCERTAIN OF YOUR ABILITY. IF YOU HAVE ANY QUERIES, CONTACT YOUR DEALER.

Component Parts

Diagram Description: An exploded view diagram shows all the individual parts of the air compressor, each numbered for identification. The diagram illustrates the arrangement of components such as the motor housing, cylinder, tank, regulator, and various fittings.

Declarations of Conformity

This product complies with relevant UK and EU legislation, including:

• UKCA Mark: Declares conformity with UK regulations (e.g., Electromagnetic Compatibility, Machinery Safety, Noise Emission, Pressure Equipment, RoHS, Simple Pressure Vessels).
• CE Mark: Declares conformity with EU directives (e.g., Electromagnetic Compatibility, Machinery Directive, Outdoor Noise, Pressure Equipment Directive, RoHS, Simple Pressure Vessels Directive).

The following standards have been applied: EN ISO 4126-1:2013+A1:2016, EN 62321-7-1:2015, EN 1012-1:2010, EN 62321-4:2014+A1:2017, EN 62321-3-1:2014, EN 62321-7-2:2017, EN 62321-1:2013, EN 62321-2:2014, EN 62321-5:2014, EN IEC 61000-6-1:2019, EN IEC 61000-6-3:2021, EN ISO 3744:2010, EN 62321-6:2015, EN 60204-1:2018, EN 62321-8:2017, EN 286-1.

A Selection of Other Quality Products

Machine Mart offers a wide range of quality tools and equipment, including other air compressors, generators, power washers, welders, metalworking and woodworking machinery, hydraulics, water pumps, power tools, and starter/chargers. For servicing and spare parts, contact Machine Mart on the provided numbers.