HyPrecision Predictive waterjet pump Operator Manual 810120 165
7 – Troubleshooting
Troubleshooting
Leaks
A leaking high-pressure seal in the intensifier can push water past the rod seal and into the hydraulic fluid.
Hydraulic fluid contaminated with water has a milky appearance. Contaminated hydraulic fluid can cause damage
to the hydraulic pump.
Replace the hydraulic fluid and examine all of the parts, including the inner surfaces of the hydraulic fluid tank, the
hydraulic hoses, and the seals. Refer to page 81 for instructions.
It could be necessary to drain and flush other areas such as the shift valve, the hydraulic manifolds, and the
hydraulic pump.
SMI-related alarms are described in detail starting on page 173.
Refer to Seal Maintenance Indicator on page 222.
The rod seal has failed.
The O-ring or O-ring backup on the seal housing has failed.
Replace the component.
An O-ring has failed.
Replace the component.
In water-cooled systems, water can enter the hydraulic system through the heat exchanger.
If this occurs, contact a Hypertherm Technical Service Associate for information and support.
Hydraulic fluid leaks from anywhere on the intensifier
Water leaks into the heat exchanger
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