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Maintenance
9.3 Engine oil
The drive motor for your generator, like every internal combustion engine,
requires the required engine oil for cooling and inner cooling. It is also im-
portant to use the correct oil, both for refilling and changing oil, and to ob-
serve the prescribed maintenance intervals.
To refill and when changing oil, use a commercially available multigrade oil with
a viscosity of 10W-30 for four stroke engines as also used in automobile engines.
This applies for use of a generator in temperate climates. At very low or very high
outside temperatures it may well be necessary to use an engine oil of another
viscosity. Please take more precise information from the following info. graphic.
Fig. 9-1 Selection of the correct engine oil
9.3.1 Checking the oil level
Your generator is fitted with an oil lack automatic switching off system to avoid
engine damage occurring due to a low engine level. It has two functions:
1) it prevents the engine from starting for an inadequate engine oil level
2) it switches off the drive motor when the engine oil level falls below the mini-
mum value while operating.
If the automatic switch-off has detected a lack of oil, this is displayed by lighting
up of the yellow Fig. 7-3
warning light. In order to avoid delays and interrup-
tions during operation, check the engine oil level before every putting into oper-
ation.
Requirements Ensure that the following prerequisites are met before you check:
 Ensure that the generator is mounted horizontally.
 Wait after previous operation for about five minutes before checking until the
engine oil has gathered again in the oil sump to obtain a correct measure-
ment.
EN