
6.8.2 Replacement of engine components........................................................................................ 287
6.8.3 Replacing components with setup procedure.......................................................................... 287
6.8.4 Replacing components without an adjustment procedure....................................................... 287
6.8.5 Function test............................................................................................................................. 288
7 Diesel engine..................................................................................................................................... 289
7.1 Overview of diesel engine........................................................................................................ 290
7.2 Lubrication oil circuit................................................................................................................ 294
7.3 Cooling circuit........................................................................................................................... 296
7.4 Fuel system............................................................................................................................... 298
7.5 Common Rail............................................................................................................................. 300
7.6 Exhaust gas recirculation........................................................................................................ 306
7.7 Wastegate charge pressure controller.................................................................................... 307
7.8 Engine electrics......................................................................................................................... 308
7.8.1 Diagnostics interface, X32....................................................................................................... 308
7.8.2 CAN bus structure.................................................................................................................... 309
7.8.3 EMR3 system overview............................................................................................................ 310
7.8.4 Pin assignment of engine control............................................................................................. 319
7.8.5 Rotary speed sensor for camshaft, B114................................................................................. 324
7.8.6 Crankshaft speed sensor, B130............................................................................................... 325
7.8.7 Rail pressure sensor, B93........................................................................................................ 327
7.8.8 Fuel pressure sensor, B145..................................................................................................... 329
7.8.9 Fuel Control Unit Y137............................................................................................................. 331
7.8.10 Injectors, Y147, Y149, Y169 and Y170.................................................................................. 331
7.8.11 Oil pressure sensor, B88........................................................................................................ 332
7.8.12 Charge air temperature/charge pressure sensor, B133......................................................... 333
7.8.13 EMR-coolant - temperature sensor, B113.............................................................................. 335
7.8.14 Glow plugs, R81 to R84......................................................................................................... 338
7.8.15 Fuel pre-heating..................................................................................................................... 339
7.8.16 Sensor, water in fuel, B124.................................................................................................... 340
7.8.17 Air filter vacuum switch, B03.................................................................................................. 340
7.8.18 Float switch coolant tank, B55............................................................................................... 341
7.8.19 Removing and installing the electric starter........................................................................... 341
7.9 Inspection and maintenance work.......................................................................................... 343
7.9.1 Maintenance Table................................................................................................................... 343
7.9.2 Checks prior to start up............................................................................................................ 344
7.9.3 Every 250 operating hours....................................................................................................... 345
7.9.4 Every 500 operating hours....................................................................................................... 347
7.9.5 Every 1000 operating hours..................................................................................................... 352
7.9.6 Every 2000 operating hours..................................................................................................... 352
7.9.7 Every 3000 operating hours..................................................................................................... 356
7.9.8 As required............................................................................................................................... 357
8 Hydraulic system.............................................................................................................................. 363
8.1 Overview of hydraulics............................................................................................................. 364
8.2 Open and closed hydraulic circuit.......................................................................................... 367
8.3 Hydraulic units.......................................................................................................................... 369
8.3.1 Travel pump............................................................................................................................. 369
Table of contents
BW 28 RH
5
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