Troubleshooting
164 811390 Operator Manual DynaMAX 550P/560P/575P Waterjet Pump
High-pressure water seal life is short
If the high-pressure seal backups have a short life, make sure that the plunger bearing is
not worn.
Cause Solution
A component is damaged or has failed. • Do preventive maintenance according to the
recommended schedule.
• Examine the high-pressure cylinder, the
plunger, and the high-pressure water seals
and hoops.
• Look for flaws, deterioration, erosion marks,
corrosion, or cracks.
• Make sure that the mating surfaces are
smooth and clean.
• If damage is found, repair or replace the
component.
The supply-water flow or pressure is too low. Make sure that the supply-water flow and
pressure are sufficient. Refer to the
Specifications section in this manual.
The proportional control valve is not operating correctly. Contact a Hypertherm Technical Service
Associate for information and support.
The water quality is not sufficient. Make sure that the water is clear and orderless.
Refer to Test the water quality on page 93.
Hydraulic fluid leaks from anywhere on the intensifier An O-ring has failed. Replace the component.
The pressure in the water accumulator tank is too low. Check the air pressure in the water accumulator
tank.
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