7.12.7 Exhaust flaps – Checking coupling rods
operability and play 147
7.12.8 Exhaust flaps – Coupling rod replacement 149
7.13 Starting Equipment 152
7.13.1 Starter – Condition check 152
7.14 Lube Oil System, Lube Oil Circuit 153
7.14.1 Engine oil level – Check at sight glass 153
7.14.2 Engine oil – Level check with oil dipstick 154
7.14.3 Engine oil – Change 155
7.14.4 Engine oil – Sample extraction and analysis 157
7.15 Oil Filtration / Cooling 158
7.15.1 Engine oil filter – Replacement 158
7.15.2 Centrifugal oil filter – Cleaning and filter-
sleeve replacement 160
7.16 Coolant Circuit, General, High-Temperature
Circuit 162
7.16.1 Engine coolant – Level check 162
7.16.2 Engine coolant – Change 163
7.16.3 Engine coolant – Draining 164
7.16.4 Exhaust flaps – Draining coolant from
servomotors 166
7.16.5 Engine coolant – Filling 167
7.16.6 Engine coolant pump – Relief bore check 170
7.16.7 Engine coolant – Sample extraction and
analysis 171
7.17 Low-Temperature Circuit 172
7.17.1 Charge-air coolant – Level check 172
7.17.2 Charge-air coolant – Change 173
7.17.3 Charge-air coolant – Draining 174
7.17.4 Charge-air coolant – Filling 177
7.17.5 Checking charge-air coolant pump pressure
relief port 180
7.18 Belt Drive 181
7.18.1 Drive belt – Condition check 181
7.19 Battery-Charging Generator 182
7.19.1 Checking battery-charging generator 182
7.19.2 Battery-charging generator drive – Drive belt
tension adjustment 183
7.19.3 Battery-charging generator drive – Drive belt
replacement 184
7.20 Fan Drive 185
7.20.1 Fan drive – Drive belt check / adjustment 185
7.20.2 Fan drive – Drive belt replacement 187
7.21 Engine Mounting / Support 188
7.21.1 Engine mounting – Check 188
7.22 Wiring (General) for Engine/Gearbox/Unit 189
7.22.1 Еngine cabling ‒ Check 189
7.23 Accessories for (Electronic) Engine
Governor / Control System 190
7.23.1 Resetting CDC parameter and entering IIG
with DiaSys® 190
7.23.2 Actuators – Visual inspection and test 191
7.23.3 Engine governor and connectors – Cleaning 193
7.23.4 Engine governor plug connections – Check 194
7.23.5 NOx sensor – Replacement 195
7.23.6 Lambda sensor – Replacement 197
8 Appendix A
8.1 Abbreviations 199
8.2 MTU contact persons/service partners 202
9 Appendix B
9.1 Special Tools 203
9.2 Index 212
4 | Table of Contents | MS150112/01E 2014-10
DCL-ID: 0000029808 - 003
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