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  • Cutting Edge Extensions Limitations
    • For maximum tool life and safety do not extend the carbide cutting edge more than .125 (1/8th inch) above the steel backing plate.
  • Backing Plate Extension Safety
    • Never raise the bottom of the backing plate or the carbide knife above the “max.” mark on the knife head in which the system is mounted.
    • If the head is not marked for “max.” then never raise the bottom of the backing plate or the knife above the bottom of the clamping wedge.
  • Maximum Profile Depth Limitations
    • Do not exceed the maximum profile depth as shown in the chart below. See drawing above for representation of the profile depth.
    • 38 mm width: No pattern-For planning only
    • 50 mm width: 12mm or .47" maximum depth
    • 60 mm width: 22mm or .87" maximum depth
  • Cleaning & Inspection Procedure
    • Be sure the cutter head is completely clean and free from all foreign material in the knife pocket regions prior to installing NAPAC System. Check all corrugations in the knife head and on the NAPAC steel backing plates for nicks and burrs. Do not use a knife head or a NAPAC steel backing plate that has any nicks or burrs.
    • Never attempt to remove a nick or burr with a file from the corrugations.
    • Never exceed the recommended max. RPM or max. knife size limits.