Plasma Power Supply
XPR170 Field Service Bulletin 810410 17
Replace the coolant check valve
Refer to Coolant system on page 134 for location and part number.
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. Drain the coolant until the level is below the coolant tank fitting.
Keep all nuts and screws that you remove.
2. Disconnect the tubes from the
push-to-connect fittings on the coolant
check valve. Refer to How to use
push-to-connect fittings on page 12.
3. Use 2 open-ended wrenches to remove
the 45-degree swivel fittings from the
coolant check valve.
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