ESAB Cutting Systems
CROSSBOW Page 158
5.6.12 Replacing the Main Power Supply
If the Main Power Supply (24 Volts DC) is no longer providing the correct output voltage, it needs to be
replaced. Use the following procedure:
1) The Main Power Supply is mounted with four screws through rear wall of Electrical Cabinet,
which must be removed from the back. Follow above procedure for Removing the Cover.
2) Carefully note the position of each wire connected to the terminal strip on top of the power
supply. It is recommended that a photo be taken of the actual wire arrangement using a
digital camera.
3) Note the position of the Input Voltage Selector Switch on the side of the power supply.
4) Before installing a new power supply, be sure to set the Input Voltage Selector Switch to the
correct position (either 110 or 230 VAC).
5) Un-wire each of the wire terminals, being careful not to lose the screws.
6) Remove four mounting screws from back side of Electrical Cabinet.
Figure 124: Main Power Supply Mounting Screws
Number Description
1 Electrical Cabinet, rear panel.
2 Mounting Screws
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