3
Service Manual
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3.14 Milling unit not addressable.......................................................................... 49
3.15 LAN communication problems ..................................................................... 50
3.16 WLAN connection occasionally interrupted.................................................. 52
3.17 WLAN communication problems .................................................................. 53
4Repair...................................................................................................................... 54
4.1 Removing/attaching covers.......................................................................... 56
4.2 Replacing the (DC) spindle motors .............................................................. 58
4.2.1 DC motor, single.............................................................................. 58
4.2.1.1 Removal ........................................................................... 58
4.2.1.2 Installation ........................................................................ 59
4.2.2 Testing and adjusting the spindle motor(s) ..................................... 62
4.3 Replacing the controller board / microcontroller module .............................. 63
4.4 Replacing the milling chamber lighting......................................................... 66
4.5 Replacing stepping motors........................................................................... 67
4.5.1 BR stepping motor........................................................................... 68
4.5.2 GR / MR stepping motor.................................................................. 69
4.5.3 Linear stepping motor...................................................................... 70
4.5.3.1 Removing the stepping motor........................................... 70
4.5.3.2 Installing the stepping motor............................................. 74
4.6 Replacing the milling machine...................................................................... 77
4.6.1 Removing the milling machine ........................................................ 77
4.6.2 Installing the milling machine .......................................................... 79
4.7 Replacing the tank switch (if present) .......................................................... 81
4.7.1 Preparations .................................................................................... 81
4.7.2 Removing the chassis insert ........................................................... 81
4.7.3 Installing the chassis insert ............................................................. 83
4.7.4 Final work ........................................................................................ 84
4.8 Replacing the suction connection................................................................. 84
4.8.1 Preparations .................................................................................... 84
4.8.2 Removing the chassis insert ........................................................... 84
4.8.3 Replacing the suction connection.................................................... 84
4.8.4 Installing the chassis insert ............................................................. 85
4.8.5 Final work ........................................................................................ 85
4.9 Replacing the light barrier ............................................................................ 85
4.10 Replacing the air pump ................................................................................ 86
4.11 Replacing the pressure switch ..................................................................... 87
4.11.1 Water pressure switch..................................................................... 87
4.11.2 Air pressure switch .......................................................................... 88
4.12 Replacing the fan unit................................................................................... 89
