Replace the Nozzle Filter

The nozzle filter removes small particles from the jet stream and is a consumable item. See the Maintenance Schedule for the recommended frequency for this task.

1. Open the lid and lock it in the upright position.

Use care when opening or closing the lid to avoid injury. Never let the lid free-fall. Keep hand, fingers, or body parts away from the side of the table when closing the lid.

2. Thoroughly clean the high-pressure line and components before disassembly.
3. Place cardboard or similar material onto the cutting deck to prevent injury from sharp slats and tools/parts from dropping into the tank.
4. Remove the nozzle body [2] from the inlet body [1].

Figure 637  

5. Screw the seal removal tool into the nozzle filter.

Do not scratch or damage the inlet body when using the seal removal tool. Doing so can cause leaking.

Figure 638  

6. Pull the seal removal tool straight down to remove the nozzle filter from the inlet body.

Figure 639  

7. Unscrew the removed nozzle filter from the removal tool and discard the old nozzle filter.

The filter seal assembly is a consumable item and is replaceable.

8. Remove the inlet body O-ring [1].

Figure 640  

9. Clean and inspect the O-ring [1] for damage, replaced it as needed (Figure 640).
10. Clean both the inlet body threads [1] and the bottom surface [2].

Figure 641  

11. Insert the nozzle filter [1] into the inlet body.

The nozzle filter is correctly seated when tightening the nozzle body.

Figure 642  

12. Place the inlet body O-ring [1] on the inlet body.

Figure 643  


Do not use a brush or cotton swab or foam-tipped applicator to apply lubricants because they can leave fibers and clog the nozzle.

13. Apply a light coat of Blue Goop to the second and third threads [1] of the inlet body, then spread the lubricant evenly around the inlet body threads.

Use care when applying lubricants around high-pressure water routes. Lubricants can enter the high-pressure water system and clog the orifice.

Figure 644  

14. Wipe the excess Blue Goop from the end of the inlet body [1].

Figure 645  

15. Clean the nozzle and orifice assemblies. See Clean the Orifice and Nozzle Body for recommended cleaning procedures.
16. Apply a light coat of Blue Goop to the first and second nozzle body threads [1], then spread the lubricant evenly around the nozzle body threads.

Figure 646  

17. Wipe the excess Blue Goop from the end of the nozzle body [1].

Figure 647  

18. Verify the orifice assembly [1] is installed in the nozzle body, adjust the orifice to make sure it is seated correctly in the chamber bore [2].

Figure 648  


Always orient the orifice assembly so that the brass [1] is visible from the top of the nozzle body. Inserting the orifice assembly in nozzle body in the incorrect orientation [2] can cause damage to the orifice assembly.

Figure 649  

19. Attach the nozzle body [3] to the inlet body [1] and tighten.

Do not overtighten the nozzle body. The ring seal and O-ring make the seal, not the torque of the body. Over tightening does not fix a leak and most likely creates additional repair issues. If there is a leak, inspect the sealing surfaces and replace the seal.


Ensure the garnet abrasive inlet [2] points towards the front of the table. Move the Z-axis to the back of the cutting deck (+Y direction) before tightening.

Figure 650  

20. Close the lid.
21. Perform a nozzle test, see Test the Nozzle.