Before refilling the cutting system with new coolant, refer to Remove old coolant from the system on page
264.
For coolant installation steps, refer to Overview of cutting system coolant
on page 209.
The use of old coolant can decrease coolant flow, which can cause higher torch temperatures that shorten
the life of consumable parts.
For instructions about preventive maintenance (such as weekly, monthly,
and yearly tasks), refer to the XPR Preventative Maintenance Program
(PMP) Instruction Manual (809490).
Remove old coolant from the system
Remove all of the old coolant from the system before you add new coolant.
Before you begin: Remove the power from the cutting system on page 249.
1. Remove the right external panel from the plasma power supply (this is the panel on the right when you
look at the front of the unit).
M6 (10 mm hex) screws hold the panel in position.
2. To remove old coolant from the coolant reservoir:
a. Connect a tube with a 3/8-inch inner diameter to the outlet of the valve on the bottom of the
reservoir.
b. Put the other end of the tube into an empty container that holds the approximate total coolant
volume for your cutting system.
c. Open the valve that is located on the bottom of the reservoir.
d. Remove the cap from the reservoir inlet to let the coolant flow out of the reservoir.
3. To remove the old coolant from the heat exchanger:
a. Keep one end of the tube with the 3/8-inch inner diameter connected to the valve on the
bottom of the reservoir and the other end of the tube in the container.
b. Remove the coolant return hose from the rear of the plasma power supply.
Maintenance
7
264
811530 Instruction Manual XPR460
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