Shaft inspection
NOTICE:
Do not use shaft centers for the runout check as they may have been damaged during the re-
moval of the bearings or impeller.
122
Figure 62: Shaft inspection
Shaft surface check
Check the shaft surface for damage. Replace the shaft if it is damaged beyond reasonable repair.
Rotor
Allowable runouts of the fully assembled rotor are listed in the Shaft and rotor runout requirements table.
Table 2: Shaft and rotor runout requirements
Characteristic
Requirement
Flexibility factor, L
4
/D
2
>1.9x10
9
mm | >3.0x10
6
in.
Allowable shaft runout, TIR
25 micrometers | 0.0010 in.
Component fit to shaft
Clearance
Allowable rotor radial runout, TIR* 76 micrometers | 0.003 in.
*Total indicated runout of impeller hubs and sleeves
122
124
101
130
Figure 63: Fully assembled rotor
6.5.3 Bearings inspection
Condition of bearings
Do not reuse bearings. The condition of the bearings provides useful information on operating conditions
in the bearing frame.
6.5 Preassembly inspections
86
3620 i-FRAME API type BB2 single stage / ISO 13709 2nd Ed/API 11th Ed Installation, Operation, and Maintenance
Manual
Содержание GOULDS PUMPS i-FRAME 3620
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