8.7.4 Hydraulic steering system ..........................................395
8.7.5 Auxiliary hydraulics circuit ..........................................396
8.8 Hydrostatic transmission system ................................... 397
8.8.1 Front-wheel drive ................................................397
8.8.2 Rear-wheel drive ................................................ 398
8.9 Electrical system .................................................. 399
8.9.1 Main components ............................................... 399
8.9.2 Computerized system .............................................400
8.9.3 Fuses ........................................................ 401
8.9.4 Additional fuses ................................................. 405
8.9.5 Relays ........................................................407
8.9.5.1 Additional relays .......................................... 412
8.9.6 Control units ................................................... 413
8.9.6.1 EXT control unit ...........................................414
8.9.6.2 ENEDC control unit ........................................ 414
8.9.6.3 FTD1 control unit ..........................................415
8.9.6.4 FTD2 control unit ..........................................415
8.9.6.5 Engine control unit .........................................416
8.9.6.6 Engine sensors and control unit ............................... 417
8.9.7 Electric motors ..................................................418
8.9.7.1 Engine ignition control motor ................................. 418
8.9.7.2 Concave position control motors .............................. 418
8.9.7.3 MCS concave position control motor (if installed) .................. 419
8.9.7.4 Grain tank cover position control motor ..........................420
8.9.7.5 Straw deflector control motor (if fitted) ..........................420
8.9.7.6 Fanning mill variator control motor ............................. 421
8.9.7.7 Top sieve control motor .....................................421
8.9.7.8 Lower sieve motor ........................................ 422
8.9.8 Sensors .......................................................422
8.9.8.1 Forward speed sensor ......................................422
8.9.8.2 Cylinder speed sensor ......................................423
8.9.8.3 Fanning mill speed sensor ................................... 423
8.9.8.4 Reel speed sensor .........................................424
8.9.8.5 Straw chopper speed sensor ................................. 424
8.9.8.6 Performance control sensors ................................. 425
8.9.8.7 Exhaust gas sensors ....................................... 426
8.9.8.8 Returns control sensors .....................................427
8.9.9 Electric connectors ...............................................427
8.9.10 Connections for diagnostics ....................................... 430
8.9.11 Flashing lights ................................................. 430
9 Troubleshooting ......................................................... 431
9.1 Description ........................................................433
9.1.1 Feeding .......................................................433
9.1.2 Threshing ......................................................433
9.1.3 Separation and cleaning ........................................... 435
9.1.4 Hydrostatic Transmission .......................................... 438
9.1.5 Engine ........................................................439
9.1.5.1 EEM4 engine troubleshooting (self-diagnosis) .....................441
9.1.5.2 Fault codes ..............................................441
9.1.6 Hydraulics system ............................................... 453
9.1.7 Electrical system ................................................ 454
9.1.8 Air conditioning circuit ............................................ 454
9.1.9 Straw chopper .................................................. 455
10 Off-Season Storage ..................................................... 457
10.1 Procedure to follow ...............................................459
Table of contents
Combines
M300-M310_EN_327305015