CHAPTER 3 MAINTENANCE PROCEDURES
Ohaus Corporation www.ohaus.com 3-6 FC5515R Centrifuge Service Manual
3.3.16 Replacing the Control Board.
• Remove the covering of the front housing as described in chapter 3.3.1.
• Remove all electrical connections on the control board.
• Remove the 4 screws and remove the control board.
• Replace the control board and connect it. Reassemble the unit in reverse order.
3.3.17 Replacing the Break Resistance.
• Remove the front cover as described in chapter 3.3.1.
• Remove the housing as described in chapter 3.3.5.
• Remove the electrical connections of the break resistance to the frequency converter.
• Remove the screw of the braking resistance and remove it.
• Put in the new break resistance, connect the electrical connections and reassemble the unit in
reverse order.
Figure 48: Replacing Control Board.
Figure 49: Replacing Break Resistor.
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