Hypertherm DynaMAX 550P - Check the low-pressure water pressure gauges

Operation
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56 811390 Operator Manual DynaMAX550P/560P/575P Waterjet Pump
4. Examine the weep holes in the high-pressure ends for leaks. Water leaking from a weep hole is
a sign of a faulty part or a loose connection.
5. Examine the high-pressure tubing for leaks.
6. Look for deterioration, damage, or other problems.
Check the low-pressure water pressure gauges
The prefilter water-pressure gauge shows the water pressure before the water goes through the
filter. The postfilter water-pressure gauge shows the water pressure after the water goes through
the filter.
The usual range is2.8bar to7.6bar (40psi to110psi).
Do this task when the pump is operating.
Subtract the value shown on the postfilter water pressure gauge from the value shown on the
prefilter water pressure gauge .
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1 Output adapter leak
2 High-pressure seat leak
3 Dynamic seal leak
Do this task every work shift.
Replace the water filter:
• every 1,000 hours.
• if the difference between the values is more than0.7bar(10psi).
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