Impeller areas to inspect
C
A
B
C
101 & 145
A. Shroud
B. Wear ring
C. Vane
Figure 62: Impeller inspection
Oil ring replacement
Oil rings must be as round as possible in order to function properly. Replace oil rings if they are worn,
distorted, or damaged beyond reasonable repair.
Impeller locknut areas to inspect
Locknut surfaces must be smooth and free of grooves and scratches, especially in the areas indicated by
arrows in the figure. Also check the outside diameter of the locknuts.
124 and/or 130
Figure 63: Impeller locknut inspection
Cartridge mechanical seal replacement
Cartridge-type mechanical seals should be serviced by the seal manufacturer. Refer to the instructions
from the mechanical seal manufacturer for assistance.
6.5 Preassembly inspections
84
3640 i-FRAME API Type BB2 2-Stage / ISO 13709 2nd Ed. API 11th Ed. Installation, Operation, and Maintenance Man-
ual
Summary of Contents for Goulds Pumps i-FRAME 3640
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