Instructions for heavy fuel Operation
Care and supervision / Lubricating Oil
A3.04.08.01
M20/M282/M332C/M452/M453C/M551/M552C/M601/M601C
en / 11.07.1996 BA000015 1/4
Ĺ
Care and supervision
In heavy fuel operation, lube oil purification by separators is indispensible for a proper treatment.
There is no other means to eliminate from the oil, the products resulting from cleaning and
neutralization (carbon and asphalt compounds) including water.
1. Lubrication oil filtering
By pass oil cleaning in separators is specified for heavy fuel operation.
• The separation temperature must be between 90 - 95 °C.
• The maximum utilization of the separator is to be 20 % of the rated capacity (see the rating
plate of the separator or pump).
2. Oil level control
• Check the oil level daily.
• Top up with fresh oil, if 20 % of the specified quantity has been consumed.
This will replace part of the additives consumed.
• Make an oil analysis at regular intervals.
3. Lubricating oil system
The pump fitted on the engine takes the oil from the sump tank via a protective strainer
(where fitted) and pumps it to the automatic lube oil filter. The lubricating oil is then pumped
via the subsequent oil cooler to the duplex filter (with indicator) and then via the safety
strainer to the oil pressure regulating valve. After this, it is distributed among the engine
lubricating points.
Lube oil is separated in a bypass flow.
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