Man D2868 LE426, Operating Instruction

Page: 110 / 134

Technical Data
MAN marine diesel engines D2868 LE4.. / D2862 LE4..
108
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11.3.3 V12-1550 (D2862 LE426), V12-1400 (D2862 LE446)
Engine model V12-1550 (D2862 LE426), V12-1400 (D2862 LE446)
Design V 90
°
Operating principle 4-stroke diesel
Combustion system Direct injection
Supercharging 1-stage exhaust turbocharging with intercooling and charge-air
control (Waste Gate)
Number of cylinders 12
Bore 128 mm
Stroke 157 mm
Swept volume 24 243 cc
Compression ratio 17 : 1
Operating mode Up to 1000 operating hours per year at a maximum of 20 % of
time at full load and an average load of 50 %
Rating
D2862 LE426 1140 kW / 1550 hp at 2300 rpm
D2862 LE446 1029 kW / 1400 hp at 2300 rpm
Max. torque
D2862 LE426 5180 Nm at 1200 - 2100 rpm
D2862 LE446 4680 Nm at 1200 - 2100 rpm
Firing order 1-12-2-11-3-10-6-7-5-8-4-9, cylinder arrangement, see page 111
Valve clearance (cold engine)
Intake 0.50 mm
Exhaust 0.80 mm
Fuel system
High-pressure pump Bosch CP 3.4
Injection system Common rail
Governor Electronic Diesel Control
(EDC) - Type EDC 7 C32
Injectors 8-hole nozzles
Engine lubrication Forced lubrication
Oil change quantity (with filter)
92 litres
Oil filter 2 oil modules, each with 2 oil coolers and one oil separator
Engine cooling system Liquid cooling
Coolant capacity 113 litres
Coolant temperature 80-90
°
C, short term 95
°
C permissible
Electrical equipment
Starter 24 V; 7.0 KW
Alternator 28 V; 1x 120A or 2x 120A