The container test helps to find problems with slow coolant flow.
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Get an empty container that has a minimum capacity of 3.79 liters (1 U.S.
gallon) and volume measurements, if possible.
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Remove the power from the cutting
system.
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At the rear of the
cooler, disconnect the red coolant return hose that goes to the plasma power supply from
the red coolant return fitting that is on the coolant hose manifold.
Use the container to collect coolant leaks if necessary. Remove the coolant
from the container before you start the test.
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Put the end of the coolant return hose into the container.
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Supply power to the cutting system.
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Send a process to the cutting system.
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When you hear the coolant pump start, let the coolant flow into the container
for 30 seconds.
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After 30 seconds, look at the quantity of coolant in the container.
Make sure that the container has a minimum of 1.89 liters (0.5 U.S. gallon)
of coolant.
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If the flow rate is outside of the correct range, an internal obstruction or
leak can be the cause.
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If you find obstructions, remove them.
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If you find parts that have damage, replace them.
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If coolant flow stays slow, and it has been more than six months since the last
coolant replacement, replace the coolant.
Refer to Coolant replacement and its significance.
Hypertherm recommends coolant
replacement every six months. For complete preventive maintenance
information, refer to the XPR Preventive Maintenance Program (PMP)
Instruction Manual (809490).
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If coolant flow stays slow after replacement, make sure that the bypass is
operating correctly and that these components are good:
- Coolant pump motor
- Consumables and torch
- Coolant check valve
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If you cannot
find or correct the problem, speak to your cutting machine supplier or regional
Hypertherm Technical Service team.
