Hermle Z 306 Service Manual page 3

9.4 Mounting support ............................................................................................................................................ 27
9.4.1 Replacing the front housing, the incremental shaft encoder (potentiometer) and the display ....................... 27
9.4.2 Replacing the incremental shaft encoder (potentiometer) ............................................................................. 28
9.4.3 Replacing the display .................................................................................................................................... 28
9.4.4 Replaicing the foil keyboard .......................................................................................................................... 29
9.4.5 Removing the housing ................................................................................................................................... 29
9.4.6 Replacing the lid gasket ................................................................................................................................ 30
9.4.7 Removing the lid ............................................................................................................................................ 31
9.4.8 Replacing the hinges ..................................................................................................................................... 31
9.4.9 Replacing the aerial (antenna or rotor sensor) .............................................................................................. 31
9.4.10 Replacing the motor resp. the motor rubber bearings ................................................................................... 32
9.4.11 Replacing the power board ............................................................................................................................ 35
9.4.12 Replacing the frequency converter ................................................................................................................ 35
9.4.13 Checkup the imbalance sensor ..................................................................................................................... 36
9.4.14 Replacing the control board ........................................................................................................................... 36
9.4.15 Replacing the break resistance ..................................................................................................................... 36
9.4.16 Replacing the signal generator ...................................................................................................................... 37
9.4.17 Replacing the lid lock..................................................................................................................................... 38
10. Trouble Shouting .......................................................................................................... 39
10.1 Error messages: Cause / Solution ................................................................................................................. 39
10.2 Survey of possible error messages and their solutions .............................................................................. 39
10.2.1 Lid release during power failure .................................................................................................................... 39
10.2.2 Description of the error message system ...................................................................................................... 40
10.2.3 Errors that may be indicated in the LCD display ........................................................................................... 40
11. Maintenance .................................................................................................................. 42
11.1 Maintenance and cleaning .............................................................................................................................. 42
11.1.1 General .......................................................................................................................................................... 42
11.1.2 Cleaning and disinfection of the unit .............................................................................................................. 43
11.1.3 Cleaning and disinfection of the rotor ............................................................................................................ 43
11.1.4 Disinfection of aluminium-rotors .................................................................................................................... 43
11.1.5 Disinfection of PP-rotors ................................................................................................................................ 43
11.1.6 Glass breakage ............................................................................................................................................. 44
11.1.7 Service life of rotors, round and rectangular buckets, accessories ............................................................... 44
12. Flow diagrams ............................................................................................................... 45
12.1 Flow diagram 230 V / 120 V / 50-60 Hz, page 1 .............................................................................................. 45
12.2 Flow diagram 230 V / 120 V / 50-60 Hz, page 2 .............................................................................................. 46
12.3 Control board ................................................................................................................................................... 47
13. Spare part list ................................................................................................................ 48
© Hermle Labortechnik GmbH Service Manual Z 306
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