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-26- Extreme Duty Planers
Table
The table movement is critical to the operation of
the Extreme Duty Planers. For the feed rollers to
work correctly, the table must be parallel with the
cutterhead.
We strongly suggest using a Rotacato
r
®
for mak-
ing adjustments to your planer. This tool is well
worth the money, because it provides accuracy
within .001". Check with the current Grizzly cata
-
log for details.
As an alternative to using a Rotacator
®
, construct
a block of scrap wood to aid in checking the table.
The wood block should be rectangular and should
have one side that sits flat on the table. Make
the block tall enough to leave adequate working
room between the table and the cutterhead, but
thin enough to fit between the chip deflector and
pressure bar.
To check the table with a Rotacator
®
:
1. Make sure the planer is unplugged!
2. Models G9740Z and G9967Z skip this step.
For Models G9740/G9967/G9741/G9961,
open the left side service door. Locate the
cutterhead lock shown in Figure 11. Rotate
the pulley and drop (pull up and twist)
the cutterhead lock into the THREADED
HOLE in the pulley (this should position the
cutterhead so the knives are out of the way
for table adjustments).
3. Set the Rotacator
®
dial to .000". Place the
Rotacator
®
under the cutterhead on one end.
Turn the cutterhead so the plunger on the
Rotacator
®
will contact the cutterhead body
as shown in Figure 12. Raise the table up
enough for the cutterhead to get a reading
on the dial.
Figure 11. Engaging cutterhead lock.
Figure 12. Rotacator measuring cutterhead/
table for being parallel to each other.
4. Move the Rotacator
®
back and forth to find
bottom dead center on the cutterhead. (You
will reach bottom dead center when you
have the highest reading on the Rotacator
®
.)
5. Now raise the table up so the Rotacator
®
reads exactly .050", and set the dial to
.000".
6. Move the Rotacator
®
to the other side of the
cutterhead and find bottom dead center. If
the difference in either direction of the dial
is more than .004", then the table should be
adjusted.
Cutterhead
Lock
Point of
contact