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ROUTINE MAINTENANCE
CHANGING STANDARD BABBITTED CHIPPER KNIVES
Knives should be changed before they are dull, to prevent the operator from having to force-feed the machine causing pre-
mature wear on the drum and its components.
1� Throttle engine down to an idle and disengage the clutch. (This is shown in gure 1 for a electric clutch. If your machine
has a mechanical clutch you will need to manual disengage your clutch with the handle.)
DANGER/THROWN DEBRIS, CUT, PINCH HAZARD: Make sure the drum has come to a complete stop before at-
tempting any maintenance�
CAUTION: Do not use your hand to check for drum movement�
DANGER/THROWN DEBRIS, CUT, PINCH HAZARD: Shut power unit off
and perform Lockout/Tag out procedures before any maintenance is
performed�
CAUTION: Two (2) people are required when changing chipper knives�
CAUTION: Knives are extremely sharp� Always wear leather gloves when changing knives�
2� Remove hood bolts, open hood and latch.
3� Remove the bolts from the knife clamp.
4� Remove knife clamp, knife, and counter knife.
5� Blow dirt and debris out of the knife pocket and bolt holes with compressed air.
6� Inspect counter knife, knife holder, knife clamp, knife bolt, and threads for wear or damage, run a tap through the
threads if necessary.
NOTE: Replace if worn or damaged.
NOTE: Never allow counter knives to expose top leading edge of holder.
NOTE: Always scrape debris off of mating knife surfaces prior to installation.