21
Shaft Plumb Plot
Showing Bearing and Seal Ring Centerlines
N
S
W E
Upper Guide Bearing
Thrust Bearing
Lower Guide Bearing
1st Reading
2nd Reading
Coupling
3rd Reading
4th Reading
Turbine Guide Bearing
Upper Seal Ring
Lower Seal Ring
10"
150"
20"
15"
25"
15"
25"
55"
30"
25"
0.0023"
Out of plumb W-E
Out of plumb N-S
0.01875"
Scale
10"
0.002"
(vertical)
(horizontal)
Upper Guide
Bearing
N - 0.080
S - 0.040
E - 0.056
S - 0.040
E - 0.056
W - 0.064
Lower Guide
Bearing
N - 0.062
S - 0.040
E - 0.047
S - 0.040
E - 0.047
W - 0.055
Turbine Guide
Bearing
N - 0.050
S - 0.044
E - 0.043
S - 0.044
E - 0.043
W - 0.051
Upper Seal
Ring
N - 0.040
S - 0.046
E - 0.044
S - 0.046
E - 0.044
W - 0.042
Lower Seal
Ring
N - 0.041
S - 0.039
E - 0.034
S - 0.039
E - 0.034
W - 0.046
Bearing and Seal Ring Clearance Readings
(Bearing Clearance Readings Taken To Bearing Housing with Bearings Removed)
Figure 15.--Plot of shaft centerline.