OMAX JetMachining® Center Operator’s Guide
Maintenance
4 - 44
400433D-EN
contains instructional videos and updated technical information. You are encouraged to regularly visit this
support web site to stay up-to-date on your OMAX equipment.
Troubleshooting the OMAX Pump
Use this section to help resolve many of the common problems that can occur while operating the OMAX
JetMachining Center.
Display Screen Messages
All fault messages, except those related specifically to the Variable Frequency Drive (VFD), appear on
the keypad display.
Normal Operation Messages
When the pump is operating normally, the keypad displays these four lines of text:
Water Pres xx.x KSI
pump output pressure in Ksi
High PreSet xxxx RPM
preset drive motor high RPM
Low PreSet xxxx RPM
preset drive motor low RPM
RunTime xxx HRS
accumulative number of pump run hours
Pump Fault Messages
When a fault condition during pump operation occurs, the pump shuts down with one or more of the
following messages appearing in the first three lines of the keypad display (the fourth line always
displays the cumulative pump run hours):
Charge Pressure Low
Water pressure immediately downstream of the water filters is less than 50 psi.
Charging Pump Contactor
The charge pump contactor did not close or opened for some reason. It generally occurs along with
the message “Charge Pressure Low.”
Dead Head
Reported when pump output pressure equals or exceeds 60,000 psi.
Variable Drive Fault
There is an issue with the Variable Frequency Drive.
Possible Pump Faults
Problems covered in this troubleshooting section include:
• Fault message “
Charge Pressure Low
”
• Fault message “
Charging Pump Contactor
”
• Fault message “
Dead Head
”
• Fault message “
Variable Drive Fault
”
• Low Pump Output Pressure
• No Power at Pump Unit
• Pump Does Not Start
• No Keypad Display
If you are unable to determine and correct a pump problem by following these procedures, contact
OMAX Customer Service for assistance.
Fault Message, “Charge Pressure Low”
This fault message appears on the pump’s keypad display when the water pressure downstream of the
pump’s water filters drops less than 50 psi.
Summary of Contents for JetMachining Center 2626
Page 8: ...OMAX JetMachining Center Operator s Guide viii 400433D EN ...
Page 12: ...OMAX JetMachining Center Operator s Guide xii 400433D EN ...
Page 22: ...OMAX JetMachining Center Operator s Guide Safety First 1 10 400433D EN ...
Page 140: ...OMAX JetMachining Center Operator s Guide OMAX Glossary 6 16 400433D EN ...
Page 144: ...OMAX JetMachining Center Operator s Guide Index 4 400433D EN ...