B. Braun Aesculap ElanEC GA835 Serviceanleitung Seite 22

GB
Contents
1 Measuring and test equipment..................................20
2 Opening and closing the device.................................20
2.1 Opening the device........................................................20
2.2 Closing the device..........................................................20
3 Visual inspection ............................................................21
3.1 Damage caused by disinfecting agents, UV
radiation, etc. ..................................................................21
3.1.1 Wiring ............................................................................21
3.1.2 Electronic boards..........................................................21
3.1.3 Housing...........................................................................21
3.2 Mechanical damage ......................................................21
4 Putting the device into operation .............................21
5 Selection of voltage.......................................................22
6 Basic function test.........................................................22
6.1 Preparation.......................................................................22
6.2 Implementation of test.................................................22
7 Description of technical function..............................23
7.1 Description of motor system.......................................23
7.2 Mode of operation .........................................................23
7.3 Block diagram .................................................................24
8 Technical description of subassemblies...................25
8.1 Motherboard GA835810 ..............................................25
8.1.1 Component mounting diagram................................25
8.1.2 Connector reference....................................................26
8.1.3 Functions of motherboard.........................................27
8.2 Pump controls GA835801............................................29
8.2.1 Component mounting diagram................................29
8.2.2 Connector reference....................................................29
8.2.3 Function..........................................................................30
9 Changing fuses ...............................................................30
10 Wiring diagram...............................................................31
11 Repairing the coolant pump .......................................32
11.1 Replacing the pump springs........................................32
11.2 Replacing the pump motor..........................................32
12 Final test...........................................................................33
12.1 Measuring the protective conductor resistance....33
12.2 Measuring the equivalent unit leakage current....33
13 Spare parts list................................................................34
19
ELANEC GA830 / GA835