PRODUCT INFORMATION
INDEX
DATE
Dep. 2
IO-C-M-25-006e G
March 2015
OIL LEVEL INDICATORS
2/2
Fig.2 – UL Oil level indicator
With the engine at rest, the oil level in the indicator may rise up to the high limit, occasionally indicating a situation
of excess oil. This results from backflow, i.e. oil flows back from the lubricating circuit to the sump, when the
engine has stopped.
2. MAINTENANCE
There have been cases reported when, due to a lack of cleaning, the oil level indicator showed a normal level,
whereas the amount of oil in the equipment was above or below the permissible limits due to obstruction in the
pipe that connects the oil level indicator to the oil sump in the engine.
Cleaning the oil level indicator is a simple process that requires little time and must be included in the engine
maintenance programme. It is advisable to clean the equipment when the oil is being changed, and do so at least
once a year. Cleaning involves removing the pipes, both the sump-venting pipe and the connection pipe to the oil
sump, and checking to ensure they are not blocked.
1 High level alarm indicator
2 Low level alarm indicator
3 Oil controller hose to oil sump
4 Venting
hose
5 2-way
valve
4.1.50
O&M_2.002211.810_A_10_2016
