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Replacing the Cutting Head
After about 300 hours of cutting, you will need to replace the cutting head in order to maintain cut
quality. Here is how to swap the cutting head on your machine.
Tools Needed:
•
Eye Protection
•
Torque wrench with 17 mm socket
•
Pliers to hold the cutting head
•
Tape
Procedure
•
Remove the spacing tool from the top of the cutting head and disconnect the abrasive line.
•
Use the 17mm wrench to open the banjo bolt on top of the cutting head counterclockwise
in one smooth motion. Make sure to hold the cutting head using your pliers by the flats
toward the bottom in order to avoid any damage to the gantry.
•
Remove the bolt completely and discard the old O-rings.
•
Remove the knurled knob from the cutting head.
•
Remove the two 4mm Allen bolts. The cutting head will be completely separate from the
gantry.
•
Discard the old cutting head and prepare the new head for installation. Make sure not to
confuse the two. You may wish to tape the old head in order to mark the difference.
•
Place the new cutting head straight vertically onto the gantry block and reattach the two
4mm Allen bolts. Failing to install the head straight can result in slanted cuts and lower
performance.
•
Screw in the knurled knob.
•
Place one washer onto the banjo bolt, then install in water fitting and place another washer
onto the other side of fitting.
•
Hold the cutting head with pliers by the flats near the abrasive inlet hole. Reattach the water
line to the cutting head and tighten the bolt with a torque wrench set to 18 NM and 17 mm
socket.
•
Air will be introduced into the line. Follow the HP priming procedure to ensure proper flow.
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