Hypertherm DynaMAX 550P User Manual

Troubleshooting
6
162 811390 Operator Manual DynaMAX 550P/560P/575P Waterjet Pump
The intensifier strokes to one side and stops
The intensifier strokes and does not get to the target water pressure
Cause Solution
A proximity switch
has failed. • Interchange the proximity switches (but not
the wires). If the intensifier stalls on the
opposite end, replace the proximity switches.
• Examine the indicator pin for burrs. The pins
should move easily to the bottom of the bore.
• Make sure that the indicator pin springs are
not broken and that they are the same length.
A shift pin is damaged.
The shift pin is found at the ends of the coil on
the pilot valve.
While the pump is in cooling mode, push on the
shift pin on the stalled side.
•
If the intensifier strokes to other side, the
problem is electrical.
• If the intensifier does not move, the problem
is mechanical.
A pressure transducer in the water manifold senses the supply water pressure. If the
pressure decreases to a value that is lower than the setpoint, the monitoring circuit
opens and causes a fault.
Cause Solution
There is a blockage in the high-pressure tubing or at
the orifice.
Remove the blockage from the high-pressure
tubing.
Clean or replace the orifice.
An orifice has failed. Replace the orifice.
The orifice is not the correct size or too many are
being used at the same time.
Make sure that the number of orifices and their
sizes are sufficient for the pump’s output.
The thimble filter on the on-off valve is clogged or
defective.
Clean or replace the component.
A hydraulic piston seal is worn or damaged. Contact a Hypertherm Technical Service
Associate for information and support.
There is a leak in the system. Identify the source of a leak and correct the
problem.
A low-pressure poppet is sticking, worn, or
damaged.
• Examine the face of the poppet and the
mating face on the check valve. Make sure
that the faces are smooth and flat and have
an almost mirrored finish.
• Repair or replace the low-pressure poppet.
• Make sure that the low-pressure poppet fits
in the poppet basket without sticking.
• Repair or replace the check valve.
A high-pressure poppet is sticking, worn, or
damaged.
Replace the high-pressure poppet, the spring,
and the seat.

Hypertherm DynaMAX 550P Specifications

General

Brand	Hypertherm
Model	DynaMAX 550P
Category	Water Pump
Language	English