Gasboy Gilbarco Global Pumping Unit Operation Manual Bedienungsanleitung PDF herunterladen (Seite 30)

Troubleshooting Troubleshooting Using Gauge Readings

Page 26 MDE-4447A Global Pumping Unit Operation and Service Manual · May 2008

Figure 5-6: Gauge Troubleshooting 3

At Control Valve

Cover

At Strainer (or Filter)

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At Control Valve

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At Strainer (or Filter)

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At Control Valve

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At Strainer (or Filter)

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Symptoms: No Flow or Slow

Delivery; Nozzle Open

Probable Causes:

• Worn Bypass Valve or Rotor

Blades

• Worn Rotor or Stator

• Air Leak in Suction Pipe

• Dirty Filter

Symptoms: Slow Flow; Nozzle

Open

Check Outlet Side

Probable Causes:

• Partially Restricted Nozzle or

Hose

• Bind in Computer, Gear Box,

Meter

• Pulser Drive Linkage

Symptoms: No Flow or Slow

Delivery; Nozzle Open

Probable Cause:

• Tank Burial Too Deep (High Lift)

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