MAC AFRIC Air Compressors: Original Operating Instructions

Models Covered

Important Factors When Choosing the Correct Size Compressor

• CFM (cubic feet per minute) requirement: Probably the single biggest consideration when choosing the correct compressor. Determine what CFM your compressor will need to produce in order to supply sufficient air flow at the required pressure for the air tool operation.
• Rule of thumb: Always multiply your air tool CFM rating by 1.2 in order to choose the appropriate size compressor.
• Tank size: Choosing the correct size tank is very important. With the range of sizes available from 6 litres up to 500 litres, it is vitally important that the correct size is chosen for the intended application.
• Professional, semi-professional or D.I.Y use: All compressors come with specific warranties to cover DIY/home use or commercial use. Make sure that you choose the correct size compressor for your application.

Safety Precautions

• COMPRESSED AIR IS DANGEROUS – Never direct a jet of air at people or animals.
• Do not operate your air compressor with any guards removed.
• Electrical or mechanical repairs should only be carried out by a qualified electrician/engineer. If you have a problem, please contact your nearest Adendorff branch or alternatively our Head-Office service department on (011) 434 7000 or 0861 233636.
• Before attempting any repair ensure pressure is expelled from the air receiver and disconnected from the electricity supply.
• Do not leave pressure in the air receiver overnight or when transporting.
• Do not adjust or tamper with any safety valves. The maximum working pressure of the compressor is clearly stated on the machine.
• Exercise caution when transporting the machine to avoid tipping the machine over.
• Do not operate in a wet/damp environment.
• Locate your air compressor on a firm flat surface with AVPs and ensure an adequate supply of clean air is available for the pump unit.
• Do not exert any strain on electrical cables and ensure that air hoses are not tangled or wrapped around machinery etc.
• The cylinder head and delivery pipes of your compressor become quite hot during operation. Do not touch. After switching off remember to leave an adequate cool-down period before touching.
• Ensure that any equipment/tool used in conjunction with your compressor has a safe working pressure exceeding the output pressure set on the machine.
• When disconnecting air hoses or other equipment from your compressor ensure that the air supply is turned off at the machine outlet and expel all pressurised air from within the air hose and other equipment attached to it.
• Never let anyone operate the compressor unless they have had the necessary training.
• Permanently installed pipework systems should be designed and installed by a competent engineer.

Guarantee / Warranty

This product is guaranteed against faulty manufacture for a period of 12 months from date of purchase. Please keep your receipt which will be required 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.

The guarantee against manufacturing defects depends on the end user ensuring the following:

• The compressor unit is installed correctly with a voltage supply suitable and adequate current rating for the motor.
• The compressor is regularly inspected and maintained in accordance with the maintenance schedule listed in this manual.

The Warranty Shall Not Apply To:

• Negligence
• Wear and tear parts
• Consumable parts
• Misuse, abuse
• Accidental damage
• Modifications
• Lack of maintenance
• Improper wiring
• Unauthorized repairs
• Damage caused by lightning or power surges
• Failures caused by contaminated fuels, oils, coolants (where applicable)
• Goods used contrary to their instruction manuals and on batteries

Under This Warranty We Do Not Have the Obligation To:

• Bear any transportation fees of any product to/from the Warranty centre
• Cover any incidental, consequential or indirect damages caused by defects in materials or workmanship
• Cover any delay in repair or replacement of the defective part(s)
• Provide rental equipment while warranty repairs are being performed
• Cover overtime, holiday, or emergency labour

For full terms and conditions of our guarantee please visit our website: www.adendorff.co.za

Installation

Before installing your machine, check that its air output is sufficient for the equipment to be used. The air output from the compressor must be more than the volume of air required.

• Firm and level site, and the use of floor mountings for stationary compressors – anti vibration pads. (Do not bolt machines directly to the floor).
• Dust and damp free environment.
• Adequate ventilation for air intake to the compressor pump (to draw in clean air) and cooling to the compressor pump and electric motor.
• To allow sufficient access for servicing, a minimum clearance of 500mm must be allowed around the machine.

Electrical Installation

• The power cable from the main supply must be large enough to carry the starting and running load of the electric motor.
• Electrical installations should be completed by a qualified electrician.
• Electrical connection to the mains supply must be via a suitable approved plug or isolator. If using a circuit breaker, ensure it is motor rated and of sufficient size to allow for motor starting.
• Compressors should be connected to mains electricity supply via an earth leakage protection device.
• DO NOT USE EXTENSION POWER CORDS – this will cause a voltage drop, causing the electrical motor to labour and the motor windings to burn out. Rather plug the compressor at the wall plug on a separate circuit and use a longer air-line hose (applicable to single phase 230V units). Three phase installations should be installed by a qualified electrician directly at the power supply source.

General Arrangement

Belt Driven Model – Component Reference

Direct Drive Model – Component Reference

Lubrication

Electric Compressor Pump

Use Adendorff Synthetic Compressor Oil.

Before Starting the Compressor – Check:

1. Compressor pump oil level using (a) dipstick (to level marked) or (b) sight glass.
2. Automatic control: Pressure switch ON/OFF must be in the OFF position.

To Start the Compressor

1. Switch on isolator (mains supply).
2. Switch on pressure switch (lift knob or twist switch).
3. Check rotation (flywheel/fan blows air over pump).
4. Check that pressure does not exceed maximum working pressure (stamped on machine plate). If the pressure exceeds the maximum working pressure stated, stop the machine, vent the system, and contact the Adendorff Service Department.

To Stop the Compressor

1. Switch off at the pressure switch (push knob down or turn switch).
2. Isolate from the mains supply.
3. Drain air receiver (release drain tap).

Outlet Pressure Adjustments

Portable Compressors

The portable compressor regulator has the following components: (1) Pressure adjusting knob, (2) Outlet Taps, (3) Pressure Gauge, (4) Water Drain Valve.

• To increase pressure: Turn knob (1) clockwise.
• To decrease pressure: Turn knob (1) anti-clockwise.
• Outlet taps: Slide knurled section (2) away from body to open, push towards body to close.

Stationary Compressors

These machines are not supplied with the facility to adjust outlet pressure. A comprehensive range of airline accessories is available from your local Adendorff Branch.

Overload Button (Single Phase Only)

Only applicable to certain models. The electric motor is fitted with an automatic overload detector which will stop the motor if an overload is detected.

If the overload trips:

1. Switch off the pressure switch (push knob down or turn switch). Allow the compressor to cool down for 5–10 minutes.
2. Press the reset button.
3. Switch on the pressure switch (lift knob or twist switch).

If the overload trips repeatedly, it may indicate a fault with the compressor. Contact the Adendorff Service Department.

Electrical Connections

See wiring table on the power cable.

Suggested Amp Ratings

Maintenance Tips for Air Compressors

• Drain the moisture from the tank daily!
• Check and change the compressor oil – If you're running a compressor that uses oil, check it on a daily basis. Change your oil every 300–500 hours to ensure maximum functioning of your air compressor.
• Check and change air filters – A dirty air filter will force the compressor to work harder due to a heavy build-up of dust and dirt. Check your air filter daily and change if necessary. It is advisable to change the air filter(s) every six months and clean weekly.
• Do not use extension power cords – This will cause a voltage drop, causing the electrical motor to labour and the motor windings to burn out. Rather plug the compressor at the wall plug on a separate circuit and use a longer air-line hose.

Maintenance Chart

Troubleshooting Chart

Petrol Engine Manual

Petrol Model – Component Reference

Petrol Engine Maintenance Chart

Petrol Engine – General Safety Rules

• Always use in a well ventilated area.
• Always position the exhaust outlet away from people.
• Never use indoors or in a confined space.
• Keep children away from the compressor.

Fire Prevention

• Always switch the engine OFF when refuelling.
• Always refuel away from any source of heat.
• Always refuel in a well ventilated area.
• Only use standard unleaded petrol.
• Never overfill the tank.
• Never smoke whilst refuelling and avoid smoking or using a naked flame near the compressor.
• Never start the engine if there is spilled fuel. Any spillage must be wiped clean and the compressor allowed to dry before attempting to start the engine.

Before Starting the Petrol Compressor, Check:

• The compressor is in good condition and free from any damage.
• The compressor is clean and free from fuel or oil spillage.
• The compressor is correctly located for use.
• The fuel system is intact and there is no leakage.

Connecting the Battery (COMPRE-705)

• Connect the negative wire to the negative terminal on the battery.
• Connect the positive wire to the positive terminal on the battery.
• Ensure both terminals are covered by the plastic covers.

Checking the Engine Oil Level

1. Turn the dipstick anti-clockwise and remove from the oil fill tube.
2. Wipe the dipstick with a clean cloth.
3. Insert the dipstick back into the oil fill tube and then remove it again. Do not screw in the oil filter cap/dipstick when doing this.
4. If the oil level is at or below the "L" mark on the dipstick, add oil to the crankcase. Fill until the oil reaches the threads in the oil fill tube. We recommend the use of SAE30 Oil (available from your nearest Adendorff).
5. Replace the oil filter cap.

Petrol Engine Lubrication

Use SAE30 4-stroke motor engine oil.

Checking the Fuel Level

Only use standard unleaded petrol.

1. Check the fuel level on the fuel gauge. The fuel gauge will show as red when you have fuel in the tank, turning white as the fuel level decreases.
2. To add fuel, open the fuel filter cap.
3. Just inside the fuel tank is a fuel filter which catches any contaminants as you refuel.
4. Slowly add fuel to the fuel tank watching the fuel level gauge as you do so.
5. Replace the fuel filter cap securely.

Starting the Petrol Engine

1. Set the fuel valve to the ON position.
2. Move the choke lever to the "choke" position.
3. Ensure that the "Engine Switch" is on and the air release valve is open on the air receiver.
4. Pull the metal lever before starting. After the engine has reached normal RPM (running speed), return the lever to its original position.
5. Proceed by pulling the recoil start until the unit has started (COMPRE-070 and COMPRE-071 models).
6. Insert the key into the ignition (COMPRE-705 model).
7. Turn and hold the key in the START position (COMPRE-705 model).
8. Once the engine has warmed up, set the choke lever to the RUN position.

Shutting Down the Petrol Compressor

To stop the compressor in an emergency, simply set the engine switch to OFF.

Changing the Engine Oil

1. Unscrew and remove the oil filter cap/dipstick.
2. Place an oil collection tray under the drain plug.
3. Unscrew the drain plug and allow the used engine oil to drain from the crankcase into the oil collection tray.
4. Replace the drain plug.
5. Fill the crankcase with engine oil until the oil reaches the threads in the oil fill tube. We recommend SAE30 oil.
6. Replace the oil filler cap/dipstick.

Changing the Spark Plug

1. Remove the spark plug cap from the spark plug.
2. Use the spark plug spanner to remove the spark plug.
3. Remove any carbon that has accumulated around the electrode.
4. Check the spark plug gap — it should be between 0.7 and 0.8mm. Adjust if necessary.
5. Check the overall condition of the spark plug for erosion or pitting and replace if necessary.
6. Reinstall the spark plug and replace the spark plug cap.

Draining the Fuel Tank

1. Set the fuel supply valve to OFF.
2. Unscrew and remove the fuel valve cup, then remove the 'O' ring and fuel valve cup.
3. Place an approved petrol storage container under the fuel valve and set the fuel supply valve to "ON". The fuel in the tank will drain into the container.
4. Replace the "O" ring and fuel valve cup.

Checking the Air Filter

1. Unclip/unscrew and remove the air filter cover.
2. Remove the air filter element.
3. Make sure that the air filter is clean and not damaged. If damaged, contact Adendorff Machinery Spare Parts Department for a replacement. If the filter is dirty, wash in a solution of warm water and mild detergent and rinse thoroughly. Leave the filter to dry completely, then immerse in clean engine oil and squeeze to remove excess oil.
4. Replace the filter to its original position and replace the air filter cover.

Replace the In-Line Fuel Filter (Applicable to Certain Models)

1. Set the fuel supply to OFF.
2. Remove the clip at each end of the in-line fuel filter.
3. Remove the hoses from the in-line fuel filter.
4. Replace the in-line fuel filter.

Petrol Engine Troubleshooting

If this does not solve your problem, please contact Adendorff Machinery.

Why Air Tools?

Average Free Air Consumption Guide

EC Declaration of Conformity

As part of R.S.A. legislation [Paragraph 11.1.a], all pressure equipment shall be subjected to an internal, external inspection and pressure test at 1.25 x Pd before commissioning. After installation and per paragraphs 11.1d and 11.1e, the equipment shall be subject to routine inspection and pressure test every three years thereafter, for the account of the purchaser.