Global Machinery Company EAC40, EAC30 instruction manual Operation

Page 11

Operation

1.The pressure in the tank is controlled by the action of the pressure switch located under the pressure switch cover (2). When the set maximum pressure is reached the pressure switch activates and the motor is switched off. The pressure then decreases as the air is used by the connected tool until the set minimum pressure is reached after which the pressure switch causes the motor to switch on again. The operator of the compressor should be well aware that during use of the compressor the motor will start and stop under the influence of the rising or falling pressure in the tank. The motor will start without any warning.

2.The maximum and minimum pressures are factory set and the operator should not try to change them.

3.All accessories are connected to the regulated air outlet (6).

4.The pressure of the regulated outlet, as shown on the regulated outlet pressure gauge (7), can be changed by turning the regulating knob (5).

Note. To obtain the correct output reading on the regulated

output gauge, the air must be flowing through the outlet.

The regulating valve should be adjusted and the gauge read with the outlet valve open and the air being discharged from the regulated outlet through the accessory being used.

To increase the air pressure, rotate the regulating valve clockwise. To decrease the pressure, rotate the regulating valve anti-clockwise.

Note. If you do not allow the air to discharge while you are setting the regulator, the pressure as indicated on the regulated outlet gauge will be incorrect. This gauge ONLY indicates the correct pressure while air is being discharged from the outlet.

5.On completion of the task, i.e. when you have finished using the compressor, or when you are leaving the compressor unattended, turn off the compressor in the following way:

Press down the on/off switch (3).

Wait for the pressurised air to bleed from the release valve under the pressure switch cover (2).

Note. When you press the button down you will hear a short air discharge of approx ½ second however, this discharge only occurs if the compressor is actually running at the time, and not in idle.

Switch off the electrical power supply and remove the electrical plug.

Pull the ring on the safety valve (8) to ensure all the pressurised air is released from the tank, or open the drain cock to release the pressure from the tank.

WARNINGS.

1.Never attempt to remove any part of the compressor whilst the tank is under pressure.

2.Never attempt to remove any electrical component whilst the compressor is connected to the power supply. Switch off the power and remove the electrical plug.

3.Do not adjust the safety valve.

4.Do not use an electrical extension cable.

5.If the release valve under the pressure switch cover (2) fails to operate when the on/off button is pressed down, switch the power supply off and determine the nature of the fault.

6.Ensure that the lubricating oil is clean and that the oil level is maintained at the mid point of the red circle in the oil level glass (16).

7.Take care when discharging air from the tank, i.e. from the safety valve, the drain cock or the air outlet. Compressed air can be extremely dangerous. Take care the discharge air does not cause dust, stones or any other foreign particles to be blown through the air and that the air is discharged in a safe manner.

11

Image 11 Contents
AIR Compressors Contents Unit starts Automatically Switch off power supply Environmental protection Description of symbolsSpecifications IntroductionGeneral safety instructions Additional safety rules for air compressors Contents of carton 114 Know your productRubber feet AssemblyUnpacking Wheels Fitting the wheelsMaintaining the air filter Pre-start routineTo start & stop the compressor Air filterOperation Vibration or abnormal noise TroubleshootingSlow or becoming excessively hot Main compressor sticking/tightExcessive oil consumption Outlet capacityGeneral inspection MaintenanceCleaning Power cord maintenancePage GMC customer assist