Table of Contents
1 Safety
1.1 Important provisions for all products 5
1.2 Personnel and organizational requirements 7
1.3 Transport 8
1.4 Crankshaft transport locking device 9
1.5 Safety regulations for startup and operation 13
1.6 Safety regulations for maintenance and
repair work 14
1.7 Fire prevention and environmental
protection, fluids and lubricants, auxiliary
materials 17
1.8 Standards for safety notices in the text 19
2 General Information
2.1 Engine side and cylinder designations 20
2.2 Engine – Overview 21
2.3 Back Pack – Overview 22
2.4 Sensors, actuators and injectors – Overview 23
3 Technical Data
3.1 12 V 4000 T94/T94L engine data 27
3.2 Firing order 31
3.3 Engine – Main dimensions 32
4 Operation
4.1 Putting the engine into operation after
extended out-of-service periods (>3 months) 33
4.2 Putting the engine into operation after
scheduled out-of-service-period 34
4.3 Operational checks 35
4.4 Starting the engine in manual mode 36
4.5 Stopping the engine in manual mode 37
4.6 After stopping the engine – Putting the
engine out of operation 38
4.7 Plant – Cleaning 39
5 Maintenance
5.1 Maintenance task reference table [QL1] 40
6 Troubleshooting
6.1 Troubleshooting 42
6.2 Engine governor ECU9 – Fault messages 45
7 Task Description
7.1 Engine 73
7.1.1 Engine – Barring manually 73
7.1.2 Barring engine with starting system 75
7.1.3 Engine – Test run 76
7.2 Cylinder Liner 77
7.2.1 Cylinder liner – Endoscopic examination 77
7.2.2 Instructions and comments on endoscopic and
visual examination of cylinder liners 79
7.3 Crankcase Breather 81
7.3.1 Oil mist fine separator – Replacement 81
7.4 Valve Drive 82
7.4.1 Valve gear – Lubrication 82
7.4.2 Valve clearance – Check and adjustment 83
7.4.3 Cylinder head cover ‒ Removal and
installation 86
7.5 Injection Pump / HP Pump 87
7.5.1 HP pump – Filling with engine oil 87
7.6 Injection Valve / Injector 89
7.6.1 Injector – Replacement 89
7.6.2 Injector – Removal and installation 90
7.7 Fuel System 95
7.7.1 Fuel system – Venting 95
7.8 Fuel Filter 96
7.8.1 Fuel filter – Replacement 96
7.8.2 Additional fuel filter – Replacement 97
7.8.3 Fuel prefilter – Draining 98
7.8.4 Fuel prefilter – Filter element replacement 99
7.9 Exhaust Turbocharger 100
7.9.1 Exhaust turbocharger – Turbine housing
check 100
7.9.2 Exhaust turbocharger (LP) – Turbine housing
check 101
7.9.3 Exhaust turbocharger (HP) – Turbine housing
check 109
7.10 Charge-Air Cooling 115
7.10.1 Intercooler – Leak check 115
7.11 Air Filter 116
7.11.1 Air filter – Replacement 116
7.12 Air Intake 117
7.12.1 Service indicator – Signal ring position check 117
7.12.2 Emergency-air shutoff flaps – Functional
check with electric actuation 118
7.13 Exhaust Gas Recirculation 120
7.13.1 Exhaust flaps – Overview 120
7.13.2 Exhaust flaps – Checking operation of
actuators 122
7.13.3 Exhaust flaps – Checking coupling rods
operability and play 123
7.13.4 Exhaust flaps – Coupling rod replacement 125
MS150096/03E 2015-04 | Table of Contents | 3
DCL-ID: 0000009793 - 007