Hypertherm DynaMAX 550P User Manual

Troubleshooting
6
DynaMAX 550P/560P/575P Waterjet Pump Operator Manual 811390 157
3 Hot water leaks from the
high-pressure seat weep hole.
The output adapter is loose. Make sure that the adapter is
tightened to the correct torque
value.
The high-pressure poppet seat
has failed.
• Disassemble the parts and
look for flaws, deterioration,
erosion marks, or cracks.
• Make sure that the mating
surfaces are smooth and
clean.
• If damage is found, replace
the component.
The face of the check valve is
cracked.
Replace the check valve.
If the leaking water is hot, replace
the seat and the poppet.
Cold water leaks from the
high-pressure seat weep hole.
The O-ring on the check valve
body has failed.
Replace the O-ring.
4 Cold water leaks from the
static seal weep hole.
A fitting connection is bad. Make sure that the fitting is
tightened to the correct torque
value.
A high-pressure seal has failed. Replace the component.
The check valve O-ring nearest to
the high-pressure seal has failed.
The fitting is warm or the
low-pressure water line is
pulsing.
The low-pressure poppet is
leaking.
Repair or replace the poppet.
The check valve is cracked.
Replace the check valve.
5 Hydraulic fluid leaks from
between a high-pressure end
cap and a high-pressure
cylinder.
The hydraulic end cap bolts are
not tightened.
Make sure that the end cap bolts
are tightened to the correct
torque value.
Water leaks from the dynamic
seal housing weep hole.
The rod seal has failed.
The O-ring or O-ring backup on
the seal housing has failed.
Replace the component.
A high-pressure seal is damaged
or has failed.
• Disassemble the parts and
look for flaws, deterioration,
erosion marks, or cracks.
• Make sure that the mating
surfaces are smooth and
clean.
• If damage is found, replace
the component.
6 Hydraulic fluid leaks from the
system.
The O-ring on the proximity
switch has failed.
Replace the O-ring or the sensor.
— Water leaks at a rate of more
than30ml/minute.
The high-pressure seal has failed.
Replace the seal.
Hydraulic fluid leaks at a rate
of more than30ml/minute.
The hydraulic seal has failed.
Symptom Cause Solution

Hypertherm DynaMAX 550P Specifications

General

Brand	Hypertherm
Model	DynaMAX 550P
Category	Water Pump
Language	English