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Rotating/Changing
Cutterhead Inserts
The helical cutterhead is equipped with 4-sided
indexable carbide inserts. Each insert can be
removed, rotated, and re-installed to use any one
of its four cutting edges. Therefore, if one cutting
edge becomes dull or damaged, simply rotate it
90˚ (as shown below) to use a sharp cutting edge.
The inserts have a reference dot on one corner.
The position of the reference dot on installed
inserts can be used to track which edges are
sharp/unused and which edges are dull or dam-
aged. Replace inserts once the reference dot has
been rotated back to its original position.
Reference Dot
Figure 30. Insert rotating sequence.
Figure 32. Insert rotating sequence.
Tools Needed
Phillips Screwdriver #2 ...................................... 1
Torque Wrench .................................................. 1
Torx Bit T-25 ...................................................... 1
Precision Straightedge ...................................... 1
To rotate or replace helical cutterhead insert:
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove cutterhead guard from table, and
lower infeed table as far as it will go to pro-
vide access to cutterhead.
3.
Remove cabinet bottom access panel to
expose cutterhead pulley.
4.
Rotate cutterhead pulley to provide access to
insert(s) to be rotated/replaced.
-26-
5.
Put on heavy leather gloves to protect fingers
and hands.
6.
Remove any sawdust or debris from head of
insert, Torx screw, and surrounding area (see
Figure 33).
Figure 33. Location of cutterhead inserts and
7.
Remove Torx screw and insert, then carefully
clean away all dust and debris from insert
and insert pocket in cutterhead.
IMPORTANT: This step is critical for achiev-
ing a smooth finish with cutting operations.
Dirt or dust trapped under insert during instal-
lation will slightly raise insert in cutterhead,
which will leave marks on workpiece after
jointing.
Qty
Tip: Use low-pressure compressed air or a
vacuum nozzle to clean cutterhead pocket.
8.
Re-install insert with a sharp cutting edge
facing outward. Make sure insert is properly
seated in cutterhead pocket before securing.
— If all four insert cutting edges have been
used, replace insert with a new one. Always
position reference dot in same position
when installing a new insert to aid in rota-
tional sequencing.
9.
Lubricate Torx screw threads with a small
amount of light machine oil, wipe excess off,
and torque screw to 48–50 inch/pounds.
IMPORTANT: If too much oil is applied to the
threads, excess will attempt to squeeze out of
threaded hole as you install insert and force it
to raise slightly, making it out of alignment.
Torx
Screw
Cutterhead
Insert
Torx screws.
Model G0893 (Mfd. Since 03/19)
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