OMAX JetMachining® Center Operator’s Guide
Maintenance
4 - 10
400433D-EN
5.
Clean the
orifice
or
jewel assembly
using an
ultrasonic cleaner
filled with
white vinegar
.
Figure 4-11: Cleaning Parts in Ultrasonic Cleaner with White Vinegar
Caution:
Use of any damaged or defective nozzle component will negatively impact performance of your
OMAX abrasivejet.
Inspecting
There are four primary nozzle assembly components that should be inspected for wear or damage:
• orifice or jewel assembly
• mixing chamber disc
• mixing chamber
• mixing tube
Figure 4-12: The Four Primary Nozzle Assembly Components Requiring Inspection
Carefully inspect any nozzle component that shows signs of water leakage. Some cracks may be
extremely fine and not easily detected.
Orifice or Jewel Assembly
The orifice assembly (Figure 4-12), which contains the jewel, is a consumable item that requires
inspecting, cleaning, and replacing if damaged. The hole in the jewel is very small, approximately 0.014"
(0.36 mm) in diameter for the MAXJET 5 orifice assembly and 0.010" (0.254 mm) in a MiniJet orifice
assembly. Water travelling through the orifice is accelerated to extremely high speeds. The jewel may
have a small chip or mineral buildup that is difficult to see with the naked eye. The jewel can also be
plugged, cracked, worn, or misaligned.
In Figure 4-13, “Good Jewel Orifice”, note that the edges are clean and sharp and the center hole is
completely round. No cracks or chips appear in the area around the hole, and no deposits are plugging
the hole.
Figure 4-13: Good Jewel Orifice
mixing chamber
jewel assembly
mixing chamber disc
mixing tubes
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 ...