Page 100 - Intro Predictive Maintenance
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Machine-Train Monitoring Parameters 91
Figure 5–9 Horizontal, reciprocating compressor.
Figure 5–10 Screw compressor—steady-state applications only.
The gear set should be monitored for axial thrusting. Because of the compressor’s sen-
sitivity to process instability, the gears are subjected to extreme variations in induced
axial loading. Coupled with the helical gear’s normal tendency to thrust, the change
in axial vibration is an early indicator of incipient problems.
