Man D2868 LE426 User Manual

Decommissioning and recommissioning
MAN marine diesel engines D2868 LE4.. / D2862 LE4..
101
Carefully read through the Operating Instructions before starting any work!
This particularly applies to the General Safety Instructions section
and the safety instructions in the various chapters.
10.3.2.1 Preservation of the fuel system
The fuel system and the engine combustion chambers are preserved by operating with corrosion-inhibiting
fuel. Corrosion-inhibiting fuel is a mixture of conventional diesel fuel and
2% (by volume) Autol Desolite K corrosion inhibitor.
The fuel system must be preserved as follows:
S Prepare corrosion-inhibiting fuel in a container.
S Connect the engine fuel system to this container.
S Operate the warmed-up engine with corrosion-inhibiting fuel for 3 minutes at rated speed.
S Operate the engine for 2 minutes at idle.
S Stop the engine.
S Close off the openings for suction air and exhaust gas and seal them air tight, with the engine still warm.
NOTE
Damage to property due to incorrect preservation
When the engine is cranked with the starter, the engine may not start so as to allow the combustion
chambers, cylinder liners and valves to be preserved.
Therefore:
S Opening for intake air closed and airtight.
During the preservation of the injection system, injections are made according to the start characteristic
map.
Therefore:
S Supply power to the control unit.
10.3.2.2 Preservation of the intake and exhaust system
S Spray corrosion protection oil (MAN-Part No. 09.11002-0025) into the air intake pipe and exhaust pipe.
S Close off the openings for suction air and exhaust gas and seal them air tight, with the engine still warm.

Man D2868 LE426 Specifications

General

Engine Model	D2868 LE426
Power Output	588 kW
Fuel Type	Diesel
Bore	128 mm
Stroke	157 mm
Aspiration	Turbocharged
Fuel System	Common rail
Displacement	16.2 liters
Cooling System	Liquid Cooled

Summary

2 General Safety Instructions

2.1 Intended use

2.4 Operator's responsibility

Details operator duties for safety, risk assessment, training, and maintaining engine reliability.

2.7 Specific dangers

Details dangers from electrical current, moving parts, exhaust gases, and flammable substances.

2.10 Procedure in the event of danger or accidents

Outlines preventive measures and actions to take during accidents or emergencies.

5 Transport, Packaging and Storage

5.2 Safety instructions

Details safety warnings for heavy suspended loads and off-centre gravity.

6 Installation and Commissioning

6.1 Instructions for installation and commissioning

6.2 Engine installation

Describes engine installation, focusing on interfaces between engine and plant.

6.5 Connecting the cooling system

6.8 Tightening torques for threaded connections to Works Standard M 3059

6.9 First commissioning

Outlines the critical steps and requirements for initial engine commissioning.

7 Control and Operation

7.3 Preparation for operation

Guides on regular inspections and checks before starting the engine.

7.3.1 Checking and topping up the fuel level

Provides safety steps and procedures for checking and filling the fuel level.

7.3.3 Checking the engine oil level

Explains how to check the engine oil level using the dipstick.

7.4 Starting and stopping the engine

Describes the procedures for starting and stopping the engine using ignition lock or buttons.

7.5 Running the engine for ship operation

7.5.3 Override system

Explains the override system for restoring engine power in dangerous situations.

8 Maintenance and Care

8.4 Maintenance work

Details various maintenance tasks, starting with engine oil changes.

8.4.1 Engine oil change

Provides safety warnings and user tips for changing engine oil.

8.4.2 Maintaining the fuel filter

Covers cleaning and changing fuel pre-filters and fuel filter cartridges.

8.4.4 Changing the coolant

8.4.5 Changing the air filter

8.4.6 Poly-V-belt

9 Faults

MMDS CLC 6.5 colour display

Display in cover of E-box in engine room

10 Decommissioning and Recommissioning

10.3 Temporary decommissioning of the engine

10.4 Recommissioning of shutdown engines

11 Technical Data

11.3 Engine data of engines for light duty

11.3.1 V8-1000 (D2868 LE426)

11.3.2 V8-1200 (D2868 LE436)

11.3.3 V12-1550 (D2862 LE426), V12-1400 (D2862 LE446)

11.3.4 V12-1800 (D2862 LE436), V12-1650 (D2862 LE456)

11.3.5 V12-1900 (D2862 LE476), V12-2000 (D2862 LE496)