8.8 Fuel System 115
8.8.1 Fuel system – Venting 115
8.9 Fuel Filter 116
8.9.1 Fuel filter – Replacement 116
8.9.2 Fuel prefilter – Differential pressure gage
check and adjustment 118
8.9.3 Fuel prefilter – Draining 119
8.9.4 Fuel prefilter – Flushing 122
8.9.5 Fuel prefilter – Filter element replacement 126
8.10 Charge-Air Cooling 129
8.10.1 Intercooler – Checking condensate drain line
for coolant discharge and obstruction 129
8.11 Air Filter 130
8.11.1 Air filter – Replacement 130
8.11.2 Air filter – Removal and installation 131
8.12 Air Intake 132
8.12.1 Contamination indicator – Signal ring position
check 132
8.13 Starting System 133
8.13.1 Starter – Condition check 133
8.14 Engine Oil System 134
8.14.1 Engine oil level – Check 134
8.14.2 Engine oil – Change 135
8.15 Oil Filtration / Cooling 136
8.15.1 Engine oil filter – Replacement 136
8.15.2 Centrifugal oil filter – Cleaning and filter-
sleeve replacement 138
8.16 Coolant Circuit, General, High-Temperature
Circuit 140
8.16.1 Draining and venting points 140
8.16.2 Engine coolant level – Check 145
8.16.3 Engine coolant – Change 146
8.16.4 Engine coolant – Draining 147
8.16.5 Engine coolant – Filling 148
8.16.6 HT coolant pump — Relief bore check 149
8.16.7 Engine coolant – Sample extraction and
analysis 150
8.16.8 Coolant filter – Replacement 151
8.17 Raw Water Pump with Connections 152
8.17.1 Raw water pump – Relief bore check 152
8.18 Battery-Charging Generator 153
8.18.1 Battery-charging generator drive – Drive belt
replacement 153
8.19 Fuel Supply System 154
8.19.1 Water drain valve – Check 154
8.19.2 Differential pressure gage – Alarm function
check 155
8.19.3 Water level probe (3-in-1 rod electrode) –
Check 156
8.19.4 Pump capacity – Check 157
8.19.5 Coalescer filter element ‒ Replacement 158
8.20 Wiring (General) for Engine/Gearbox/Unit 160
8.20.1 Engine cabling – Check 160
8.21 Accessories for (Electronic) Engine
Governor / Control System 161
8.21.1 Engine governor and connector – Cleaning 161
8.21.2 EMU and connectors – Cleaning 162
8.21.3 Engine governor plug connections – Check 163
8.21.4 Engine Monitoring Unit EMU 7 – Plug
connection check 164
8.21.5 Interface module EIM plug connections –
Check 165
8.21.6 Engine Control Unit – Self-test 166
8.21.7 Engine governor ECU 7 – Removal and
installation 167
8.21.8 Engine Monitoring Unit – Removal and
installation 168
8.21.9 Engine Interface Module EIM 2 – Removal and
installation 169
8.21.10 Engine Interface Module EIM 2 – Diagnostic
features 170
9 Appendix A
9.1 List of abbreviations 173
9.2 MTU Contact/Service Partners 175
10 Appendix B
10.1 Special Tools 176
10.2 Index 183
4 | Table of Contents | M015650/06E 2018-05
DCL-ID: 0000014355 - 005
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