100
353
101
130
122
124
351C
351
Figure 57: Lifting rotating element using sling
8.
Reposition the slings around the impeller (101) on the locknuts (124 and 130).
9.
Pull the rotor out of the pump.
10. Remove the casing gaskets (351 and 351C).
11. Remove the thrust end impeller locknut (130).
You do not need to remove the radial locknut (124) from the shaft unless you plan to replace either
the radial locknut or the shaft.
122
124
101
130
Figure 58: Rotor disassembly
12. Measure and record the X dimension where indicated in the figure.
This value is required for the correct positioning of the impeller in the casing at reassembly. The X
dimension is pre-set at the factory. Refer to the Impeller setting table.
This table shows the factory settings for positioning the impeller. The X dimension is given in millimeters | in-
ches. These dimensions are not applicable to other size groups.
Size
Radial Bearing
Size
Ball/Ball Ar-
rangement
Sleeve/Ball Ar-
rangement
Sleeve/Tilt Pad
Arrangement
X
1 Dimension mm | inch
10D
6309
All
342 | 13.49
NA
20G
6312
All
333 | 13.11
NA
21G
10X12-17SQ
10X12-18SQ
418 | 16.45
NA
30H
6313
All
386 | 15.20
TBD
6.4 Disassembly
3620 i-FRAME API type BB2 single stage / ISO 13709 2nd Ed/API 11th Ed Installation, Operation, and Maintenance
Manual
81
Содержание GOULDS PUMPS i-FRAME 3620
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