Do Tests For Gas Leaks; Do A Check Of The Coolant Flow - Hypertherm XPR Series Preventive Maintenance Program

Preventive Maintenance Program
3. Examine all of the fittings that connect the hoses, cables, and leads:
a. Tighten loose connections if found, but do not make the connections too tight.
b. Order a replacement hose, cable, or lead set if you find its fitting has damage or excess
wear. Replacement hoses, cables, and leads are available from Hypertherm.

Individual fittings for external hoses, cables, and leads are not
replaceable. If you find a problem with an external fitting, you must order a
replacement hose, cable, or lead set (with integrated fitting).
4. Make sure that the hoses, cables, and leads do not twist or kink during torch movement and
system operation. Adjust them if needed.

Do tests for gas leaks

1. Use the CNC screen or XPR web interface to select the command to do an automated gas leak
test. Test results and information will appear in the error log.

For information about how to do this, see the instruction manual that came
with your CNC.
2. See the test results for guidance about how to diagnose or troubleshoot a possible gas leak.

The test results affect the corrective actions that are necessary.

Do a check of the coolant flow

1. Look at the CNC or plasma power
supply screen on the XPR web interface
to identify the coolant flow rate.
2. Make sure that the coolant flow rate is
acceptable:
Between 3.79 L/min – 11.36 L/min

(1 gal/min –3.0 gal/min) for an
XPR170 cutting system.
Between 3.79 L/min – 9.46 L/min

(1 gal/min – 2.5 gal/min) for an
XPR300 cutting system.

If the flow rate is outside of the
correct range, an internal
obstruction can be the cause.

Shown for reference only.
16
809490 Instruction Manual
XPR