ABB A175-M66 - Monitoring during operation

Operation Manual / 4 Product description / A100-M axial
4
Monito
ring during operation Page 23 /
113
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HZTL4033_EN
Revision A
July 2016
4 Monitoring during operation
4.1 Oil pressure, oil temperature
Lubricating oil pressure
CAUTION
Assuring lubricating oil pressure
Serious damage to engine or property can result from missing or insufficient
lubricating oil supply.
 The lubricating oil pressure must be monitored during operation and the
necessary pressure assured at the oil inlet.
For monitoring the lubricating oil pressure, ABB Turbo Systems recommends installing a ma-
nometer "M". If the pressure is controlled electronically, the appropriate signals are to be trig-
gered at the warning and alarm values.
Figure 17: Lubricating oil pressure measuring point
The permitted oil pressure ranges at measuring point M of the turbocharger are listed below.
Status for operation
Pressure at measuring point M
P
oil, in
[bar]
Normal operation 1.3 ... 2.5
Engine start: Cold oil, admissible for max. 15 minutes 1.3 ... 5.0
Pre-lubrication 1.3 ... 2.5
Post-lubrication 1.3 ... 2.5
Long-term lubrication 0.2 ... 0.5
Warning signal: Temporarily admissible (<1 h ) 1.0 ... 1.3
Alarm signal: Not permissible. Stop the engine immediately < 1.0
Table 5: Oil pressure range