Gasboy Gilbarco Global Pumping Unit Operation Manual Manual de usuario descargar pdf (Pagina 13)

MDE-4447A Global Pumping Unit Operation and Service Manual · May 2008 Page 9

Pumping Units with Throw-Out Rings Pumping Unit Operation and Maintenance

Pumping Units with Throw-Out Rings

All pumping units have rotors with throw-out rings and carbon blades.

Note: Studies conclude that pumping units with throw-out rings produce greater vacuum and

are more resistant to vapor lock.

To replace blades in rotors with throw-out rings, proceed as follows:

1 Install throw-out rings in the recesses of the rotor.

2 Install the rotor in the stator assembly.

3 Rotate the rotor until a blade slot is at the 12:00 o'clock position. Install a blade.

4 Rotate the rotor two slots from the installed blade. Ensure that the second slot is at the 12:00

o'clock position. Install a blade.

5 Repeat step 4 for the third blade.

6 Repeat steps 1 to 3 for the three remaining blades. See Figure 3-7.

Figure 3-7: Pumping Units with Throw-Out Rings

Blade Slot at 12:00 o’clock Position

Stator

Throw-out Rings

Rotor and Shaft

Assembly

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 41 42

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Gasboy Gilbarco Global Pumping Unit Operation Manual Manual de usuario Pagina 13