OMAX JetMachining® Center Operator’s Guide
Maintenance
4 - 4
400433D-EN
Rebuilding the Nozzle
This section provides instructions for rebuilding the nozzle assembly which includes the following activities:
• Preparing for nozzle removal
• Removing the nozzle
• Disassembling the nozzle assembly
• Cleaning and inspecting nozzle parts
• Rebuilding and replacing the nozzle assembly
• Testing nozzle operation
Note:
The nozzle assembly includes all the parts from the inlet body to the tip of the nozzle mixing tube.
Refer to the nozzle configuration documentation provided with your OMAX JetMachining Center. These
documents contain part numbers needed for ordering replacement or spare parts. Additional documents may
be ordered by contacting OMAX Customer Support. Most documents can be downloaded from the OMAX
web site (http://www.omax.com) from the Technical Support page.
Nozzle Operation
Correct operation of the nozzle assembly is critical for cutting accuracy. Damaged or worn nozzle parts, parts
assembled incorrectly, or grit and dirt in the nozzle can adversely impact the nozzle’s cutting accuracy,
pressure, and operating costs.
Identifying When to Repair and Rebuild the Nozzle
Nozzle assembly use affects these consumable components
:
• Nozzle Filter Seal Assembly including the o-ring
• Mixing Tube
• Mixing Chamber Disc
• Mixing Chamber
• Orifice Assembly including the Jewel
• O-rings
• Mixing Tube Nut
• Inlet Body
Indications that nozzle repair is needed
:
• Water leaks out of the nozzle assembly weep hole
• The jet stream is not well formed
• Cutting quality and accuracy is degraded or reduced
• Errors occur when cutting round holes or other dimensional objects
• Skipped cuts, or no cutting at all
• Abrasive flow slows or stops
• Water and abrasive back up through the feed tube and cutting stops
Preparing for Nozzle Repair/rebuild
Prior to working on the OMAX nozzle assembly, assemble the following tools and
documentation
:
Filter Seal Assembly Removal Tool
Extreme Pressure Lube (EPL)
Push Tool 0.550" (1.4 cm) diameter by 1.2" (3.0 cm) long (or a deep 3/8" socket)
1" open-end wrench
1-1/8" open-end wrench (for the MiniJet nozzle)
1-¼" open-end wrench
5/8" open-end wrench
Spanner wrench (supplied with the Tilt-A-Jet)
Arbor press
Electronic weighing scale
Summary of Contents for JetMachining Center 2626
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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 ...