Baudouin 12M26 Series, Operation And Maintenance Manual

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O&M Manual for PowerKit
M26 Series Diesel Engine
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2.5 Lubrication System
6M26 Series engines are equipped with a lubrication system including an oil cooler.
12M26 Series engines are equipped with a lubrication system including two oil coolers.
The gear driving oil pump is located at the low front of the engine.
Many engine parts are lubricated by pressurized oil through piping and crankcase hoses.
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Oil circuit
Figure2.5-Overall Layout of oil circuits
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Oil filters
6M26 Engine range is equipped with a lubricating system including 2 full flow oil filters
and one centrifugal oil filter.
12M26 engine ranges are equipped with a lubricating system including 6 full flow oil filters
and two centrifugal oil filters.
a) "Full flow" filters fitted in series on the circuit.
These cartridges are equipped with a by-pass valve allowing the continuity of the engine
lubrication even in case of a sudden clogging.
b) Centrifugal oil filter(s)
Centrifugal oil filter of 6M26 is installed in bypass on left side of the engine.
Centrifugal oil filters of 12M26 are installed in bypass on both side of the engine.
1-Oil Sump 10a-Conrod bearings
2- Suction strainer 7b-Camshaft bearings
3- Oil pump 7c-Cylinder head lubri-
cating oil pipe 4a-Centrifuge filter
4b-Oil Filter 8c-Tappet
5-Oil Cooler 9c-Pushrod
5a-Bypass Valve 10c-Rocker arm shaft
and rocker arm 5b-Pressure Relief Valve
6-Main Oil Gallery 7d-Main bearing
7a-Piston Spray nozzle 11-Turbocharger
8a-Piston 12-Lubricating oil pipe of
fuel injection pump 9a-Conrod;