Hypertherm XPR170 - Replace a Heat-Exchanger Fan; Remove a Heat-Exchanger Fan

Plasma Power Supply
1
20 810410 Field Service Bulletin XPR170
Replace a heat-exchanger fan

Refer to Fans on page 133 for location and part number.
Remove a heat-exchanger fan
1. Complete the following procedures:
a. Remove the power from the cutting system.
b. Refer to Remove the right-side (liquid-cooling-side) panel on page 62.
c. Refer to Remove the top panel on page 65.

Keep all nuts and screws that you remove.
2. Use tape to attach protective material, such as cardboard, onto the rear of the heat-exchanger
assembly to protect the cooling fins.
3. Remove the push-to-connect fittings from the inlet and the outlet of the heat-exchanger
assembly, and immediately put the ends of the hoses in a container.
4. Disconnect the wire connector for the coolant
thermistor.
CAUTION
Sharp cooling fins can cause cuts. Use caution when you work near the cooling fins.