Hypertherm DynaMAX 550P User Manual

Troubleshooting
6
DynaMAX 550P/560P/575P Waterjet Pump Operator Manual 811390 169
Low-pressure water
Problem Cause Solution
The supply water pressure is too
low.
A pressure transducer in the water
manifold senses the supply water
pressure. If the value on the prefilter
water-pressure gauge is lower than
2.8 bar (40 psi), the water pressure
going to the intensifier is too low.
When the pressure is at a value that
is lower than the setpoint, the
monitoring circuit opens and causes
a fault.
The orifice is defective. Replace the orifice.
There is a leak in the system. Make sure that the intensifier does
not stroke when it is in cut-pressure
mode with the cutting head turned
off.
If it does stroke, check the
bleed-down valve and the
high-pressure tubing for leaks.
A check valve is damaged. Examine the check valves. Repair or
replace them, if necessary.
The pump is in pierce-pressure mode
or is set incorrectly.
Put the pump in cut-pressure mode.
Make sure that the cut pressure is set
correctly.
The supply water is not turned on. Turn
ON the supply water.
A water filter is clogged. Replace the water filters.
The relief valve on the pump manifold
has failed.
Contact a Hypertherm Technical
Service Associate for information and
support.
The supply-water pressure or flow is
not sufficient.
Make sure that the supply water
meets the requirements found in the
Specifications section of this manual.
The supply-water pressure is too
high.
If the value on the prefilter
water-pressure gauge is higher
than7.6 bar(110 psi), the water
pressure is too high.
A water filter is clogged. Replace the water filters.
The boost pump bypass relief valve is
not adjusted correctly.
Contact a Hypertherm Technical
Service Associate for information and
support.
The boost pump is not needed. The low-pressure water parts are
rated for a maximum pressure
of8.6 bar(125 psi).
In environments with high
supply-water pressure, the boost
pump can increase the water
pressure to higher than the maximum.
This can cause damage to the water
filter and other parts.
If the value on the prefilter
water-pressure gauge is higher
than4.8 bar(70 psi):
• In the electrical enclosure, turn
the switch on the boost pump
motor contactor to0.
• On the operator interface, turn
OFF boost pump monitoring.

Hypertherm DynaMAX 550P Specifications

General

Brand	Hypertherm
Model	DynaMAX 550P
Category	Water Pump
Language	English