Gasboy Gilbarco Global Pumping Unit Operation Manual Manual de usuario descargar pdf (Pagina 28)

Troubleshooting Troubleshooting Using Gauge Readings

Page 24 MDE-4447A Global Pumping Unit Operation and Service Manual · May 2008

Figure 5-3: Pressure Reading - Nozzle Closed

Troubleshooting Using Gauge Readings

The following examples help you determine the possible cause of a problem by observing the

gauge readings on the inlet (vacuum) and outlet (pressure) side of the pumping unit. Actual

readings may vary slightly, depending on installation and environmental conditions.

Figure 5-4: Gauge Troubleshooting 1

Symptoms: No Flow; Nozzle Open

Check Inlet Side

Probable Causes:

• Control Valve Stuck Shut

• Bypass Valve Open

• Atmospheric Float Valve Open

• Stuck Rotor Blades

• Broken Suction Line

• Strainer or Filter Completely

Plugged or in Backwards

• Empty Tank

At Control Valve

Cover

At Strainer

(or Filter)

Cover

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 41 42

Sin comentarios

Gasboy Gilbarco Global Pumping Unit Operation Manual Manual de usuario Pagina 28