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Operation Manual / A170-M.. - A175-M..
5 Monitoring during operation / 5.1 Oil pressure, oil temperature
© Copyright 2021 ABB. All rights reserved.
HZTL4033_EN
Rev.H
July 2021
5
Monitoring during operation
5.1
Oil pressure, oil temperature
Lubricating oil pressure
CAUTION
Assuring lubricating oil pressure
Serious damage to the engine or property can result from a missing or insuf-
ficient lubricating oil supply.
u
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 Turbocharging recommends installing a
manometer "M". If the pressure is controlled electronically, the relevant signals should be
triggered at the warning and alarm values.
Fig. 23: Lubricating oil pressure measuring point
The permitted oil pressure ranges at measuring point M of the turbocharger are listed be-
low.
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 10: Oil pressure range
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