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9. To re-install the cutterhead, reverse the above
procedure. NOTE: Before reinstalling, make
sure the machine's curved seats of the base
casting are free of dirt, dust or grease, to help
ensure a tight fit.
Blade Inserts
When blade inserts become dull enough so that it
is noticeable when cutting, they should be rotated
to a fresh edge or replaced entirely. A sharp blade
works easier and results in longer blade life. The
penalty paid for a dull blade is less blade life and
greater wear and tear on all parts of the machine.
An advantage of the helical style cutterhead is that
if knife inserts develop nicks, these inserts can be
individually flipped or replaced without the need to
disturb the other inserts.
If the jointer is used often, keeping a spare set of
blade inserts on hand is recommended.
Gum and Pitch which collect on the inserts cause
excessive friction as the work continues, resulting
in overheating of the inserts, less efficient cutting,
and consequent loss of blade life. Use "Gum and
Pitch Remover" or oven cleaner, to wipe off the
inserts.