ESAB ET 186i AC/DC
INSTALLATION, OPERATION AND SETUP 3-16 Manual 0-5425
A-09845_AB
Figure 3-8: Regulator to Cylinder Valve
6. Before opening the cylinder valve, turn the regulator adjusting screw counterclockwise until there is no pressure on the
adjusting spring and the screw turns freely.
7. Relief Valve (where provided): The relief valve is designed to protect the low pressure side of the regulator from high pres-
sures. Relief valves are not intended to protect down stream equipment from high pressures.
!
WARNING
DO NOT tamper with the relief valve or remove it from the regulator.
!
WARNING
Stand to the side of the cylinder opposite the regulator when opening the cylinder valve. Keep the
cylinder valve between you and the regulator. For your safety, NEVER STAND IN FRONT OF OR BEHIND A
REGULATOR WHEN OPENING THE CYLINDER VALVE!
8. Slowly and carefully open the cylinder valve (Figure 3-9) until the maximum pressure shows on the high pressure gauge.
Art # A-09828
Figure 3-9: Open Cylinder Valve
9. Open the cylinder valve completely to seal the valve packing. On gaugeless regulators, the indicator will register the cylin-
der contents open.
!
CAUTION
Keep the cylinder valve wrench, if one is required, on the cylinder valve to turn off the cylinder quickly,
if necessary.
10. Attach the desired downstream equipment.
