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9.1
Motor M1 / speed sensor B3 / Rubber-metal bearing
Wait at least 2 minutes after disconnecting the centrifuge from the mains, until
the intermediate circuit capacitors of the frequency converter are unloaded.
•
Unplug S401 and S502 on the power board.
•
Use a socket spanner to loosen and remove the three fastening nuts on lower end
plate of motor.
•
Lift motor upwards out of centrifuge and unplug the ground wire.
•
Unscrew the speed sensor B3 at the bottom of the motor.
•
Before the motor is installed, the three rubber-metal bearings must be checked for
possible wear or cracks. These items must be replaced if necessary.
•
Exchange the motor.
•
Care must be taken of the anti-twist device when the rubber metal or motor being
installed.
9.2
Power board A1
Wait at least 2 minutes after disconnecting the centrifuge from the mains, until
the intermediate circuit capacitors of the frequency converter are unloaded.
•
Unplug all plugs and cables from the power board.
•
Remove the two fastening screws of the power board
•
Exchange the power board.
•
Before installation, it must be noted that there is a heat-conducting paste between
power board and centrifuge housing floor. Heat conduction from power board to
centrifuge housing floor must be ensured.
•
The jumper for the lid lock control has to be plugged on the power board (see
chapter "Lid lock control").
Heat conduction from power board to centrifuge housing floor must be ensured.
9.3
Control panel A3
•
Remove the three fastening screws and lift up the control panel carefully.
•
Unplug the flat ribbon cable from the power board.
•
Exchange the control panel.
