Preventive Maintenance Program
22 809490 Instruction Manual XPR
5. Remove old coolant from the heat exchanger:
a. Keep the 3/8-inch inner diameter tube connected to the outlet of the valve on the bottom of
the reservoir on one end and the other end in the container.
b. Remove the coolant return hose (red band) from the rear of the plasma power supply.
c. Attach compressed air (no more than 6.89 bar/100 psi) to the coolant return hose fitting on
the rear of the plasma power supply where the return coolant hose (red band) was
previously connected.
d. For no more than 30 seconds, use the compressed air to blow all of the coolant back into to
the reservoir and filter housing.
System components need the coolant to lubricate rotating surfaces. If air
flows through the cutting system for longer than 30 seconds, it can
eliminate the coolant necessary for lubrication.
e. Close the valve at the bottom of the reservoir and remove the 3/8-inch inner diameter tubing
from the outlet.
Do not store the 3/8-inch diameter tubing inside of the plasma power
supply.
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