Fayat Group BOMAG BMF 2500 M Service Manual page 5

4.3.21 Engine speed fluctuates in lower and upper idle speed......................................................... 310
4.3.22 The rotary speed fluctuates under load.................................................................................. 311
4.3.23 The diesel engine stops unexpectedly................................................................................... 313
4.3.24 The diesel engine emits secondary noises............................................................................ 314
4.3.25 The diesel engine emits secondary noises (during combustion)........................................... 315
4.3.26 Excessive engine vibrations................................................................................................... 315
4.3.27 Increased DEF consumption.................................................................................................. 316
4.3.28 Generator does not run or only poorly................................................................................... 317
5 Hydraulic system.............................................................................................................................. 319
5.1 Open and closed hydraulic circuit.......................................................................................... 320
5.2 Hydraulic units.......................................................................................................................... 322
5.2.1 Control valve block................................................................................................................... 322
5.2.2 Hydraulic oil tank...................................................................................................................... 324
5.2.3 Conveyor belt pump H1........................................................................................................... 328
5.2.4 MCR conveyor belt motor........................................................................................................ 334
5.3 Fan circuit.................................................................................................................................. 340
5.4 Working circuit.......................................................................................................................... 341
5.5 Conveyor belt circuit................................................................................................................ 348
5.6 Travel circuit.............................................................................................................................. 351
5.7 Trouble shooting, hydraulics................................................................................................... 354
5.7.1 Insufficient hydraulic power...................................................................................................... 354
5.7.2 Trouble shooting axial piston pumps........................................................................................ 357
5.7.3 Trouble shooting axial piston motors....................................................................................... 359
5.7.4 Fault table hydraulic components............................................................................................ 361
6 Assembly groups.............................................................................................................................. 369
6.1 Hopper........................................................................................................................................ 370
6.1.1 Description............................................................................................................................... 370
6.2 Conveyor belt............................................................................................................................ 372
6.2.1 Description............................................................................................................................... 372
6.2.2 Repair....................................................................................................................................... 381
6.3 Cooling system......................................................................................................................... 385
6.3.1 Description............................................................................................................................... 385
7 Troubleshooting................................................................................................................................ 387
7.1 Preliminary remarks.................................................................................................................. 388
7.2 Emergency procedures............................................................................................................ 389
7.2.1 Actuating the emergency stop switch....................................................................................... 389
7.2.2 Disconnecting the battery......................................................................................................... 389
7.2.3 Towing the machine................................................................................................................. 389
8 Special tools...................................................................................................................................... 393
8.1 Special tools, electrics............................................................................................................. 394
8.2 Special tools, hydraulic system............................................................................................... 395
8.2.1 Special tools, tests and adjustments........................................................................................ 395
8.2.2 Special tools for flushing.......................................................................................................... 397
8.3 List of special tools................................................................................................................... 398
9 Index................................................................................................................................................... 401
BMF 2500 M
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