Group 22 Lubricating System
Design and Operation
Design and Operation Lubrication system The engine is pressure-lubricated via a gear pump coupled to the engine transmission. The oil flow is regulated by six valves. The oil pump pumps the oil to two full-flow filters and one by-pass filter, where the oil to the turbocharger is also filtered by about 5%. From the full-flow filter the
1 Safety valve 2 Bypass valve for oil cooler 3 Bypass valve for oil filter
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oil is passed to the engine block and distributed through passages to the engine lubrication points. The oil cooler is of the plate type and is located under a cast-iron cover on the right-hand side of the engine block.
4 Piston cooling valve 5 Bypass valve for bypass filter (turbocharger) 6 Reducing valve
