Troubleshooting
DynaMAX 550P/560P/575P Waterjet Pump Operator Manual 811390 165
Hydraulic fluid
Problem Cause Solution
The cooling water temperature is too high.
Water-cooled system
The cooling water is not turned on. Turn ON the cooling water.
The cooling water is too warm. If the cooling water or the supply
water temperature is higher than
24.0°C (75°F), cool the water before
use.
Air-cooled system
The ambient temperature is too high. Consider supplemental cooling.
The fan is not generating enough
airflow.
• Make sure that the fan motor
breaker is not tripped.
• Make sure that the heat
exchanger fins are not dirty or
clogged.
The thermal overload relay turned off
the fan motor.
Refer to Warnings on page 150.
The sensor is not sensing the
correct temperature.
The cord for the hydraulic fluid
temperature/level sensor is
unplugged or damaged.
• Plug in the sensor.
• Replace the cord.
The temperature sensor is faulty or
damaged.
Replace the sensor.
The hydraulic fluid pressure is too
low.
There is a leak in the system. Examine the pump for hydraulic fluid
leaks. Monitor these areas:
• Hydraulic fluid tank access cover
• Hydraulic connections
• Valves
• Top and bottom decks
The hydraulic fluid level is too low. • Make sure that the hydraulic fluid
level is at the top mark on the
sight gauge.
• Add hydraulic fluid, if necessary.
The cut pressure is not set correctly.
Make sure that the cut pressure is set
correctly.
The pump is in pierce-pressure
mode.
Make sure that the pump is in
cut-pressure mode.
The relief valve on the hydraulic
manifold has failed.
Contact a Hypertherm Technical
Service Associate for information and
support.
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