Global Machinery Company 50L - Manual (Page 11)

11
4. To stop the compressor, lift the On/Off lever (3) to the
vertical position.
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:
• Set the on/off lever (3) to the
off position.
• Wait for the pressurised air to
bleed from the release valve
under the pressure switch
cover (2).
Note. You may hear a short air
discharge for approximately 1/2
a second. 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 (10) to release the pressure from the tank.
To open the drain cock (10) rotate the valve ant-clockwise
and to close the valve rotate it clockwise.
ON OFF