Section 6
MAINTENANCE
The 5971-160 Current Reversal Switch should operate for many years without any trouble
provided that the following basic maintenance points are observed. Always remember that the
AC power should be disconnected before performing any maintenance procedure. The 5971-
160 may generate lethal voltages and must not be operated with damaged components,
protective covers or cable insulation. For more information, please refer to Section 2, Warnings
1. Electrical Connections:
Ensure that all electrical connections are clean and tight. Ensure that
the insulation of all electrical cables is undamaged and repair or replace if necessary. All
electrical termination covers must be in place and firmly secured.
A corroded and / or loose high current connection will cause a voltage drop across the
connection. A drop of 0.1V at 160A results in 16W being dissipated at the connection. The
connection will increase in temperature which will result in oxidation or the connection, a
higher resistance and a further increase in power dissipation. If this situation is left
uncorrected the cable and Reversal Switch insulation will melt and possibly the copper
connections will melt as well. Not only will the Reversal Switch and nearby equipment be
damaged, but there is the possibility for fire.
2. Warning Labels:
Ensure that all protective covers on the system and the magnet are in place.
There are warning labels on all removable covers.
3. Cooling:
Check that the fans are clean and free of blockage. Ensure that the fans are
operating at full efficiency.
4. Cleaning:
To clean wipe the case with a soft cloth with a mild detergent or plain water. Do
not use any solvents as they may damage the finish.