Monitoring During Operation; Oil Pressure, Oil Temperature - ABB A140-H56 Operation Manual

Operation Manual / A130-H.. - A140-H..
6

Monitoring during operation

6 Monitoring during operation
6.1

Oil pressure, oil temperature

Lubricating oil pressure, oil inlet
Status for operation
Normal operation
Engine start: Cold oil, admissible for max. 15 minutes
Engine idling
Pre-lubrication and post-lubrication (engine stopped)
Warning signal: (n ≥ 0.5 x n
Alarm signal: Stop the engine after 1 minute at the latest.
Table 5
Assuring lubricating oil pressure
Serious damage to engine or property can result from missing or insufficient
lubricating oil supply.
CAUTION
The lubricating oil pressure must be monitored during operation and the

necessary pressure assured at the oil inlet.
Monitoring of the lubricating oil pressure
For monitoring the lubricating oil pressure, ABB Turbo Systems recommends
installing an "M" manometer immediately before the turbocharger. If the
NOTICE
pressure is controlled electronically, the appropriate signals are to be trigge-
red at the warning and alarm values.
Oil orifice at the oil inlet
To limit the oil flow rate through the turbocharger during operation (engine at
100% load) to the admissible values, an oil orifice is mandatory or already
NOTICE
fitted at the oil inlet of the bearing casing if the oil inlet pressure is > 3 bar
(overpressure).
© Copyright 2013 ABB. All rights reserved.
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Bmax
HZTL2414_EN
1 Turbocharger contact surface
2 Oil inlet
3 Oil outlet
M Oil pressure measuring point
T Oil temperature measuring point
Page 47 / 115
Pressure at oil inlet [bar]
2.0 ... 4.5
< 8.0
0.5 ... 2.5
0.5 ... 1.0
< 1.25
< 0.6
Revision B
March 2013