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 Rotacator® 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).
Cutterhead
Lock
Figure 11. Engaging cutterhead lock.
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.
Point of 
contact
Figure 12. Rotacator measuring cutterhead/
table for being parallel to each other.
4. | Move the Rotacator | ® | back and forth to find |
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| bottom dead center on the cutterhead. (You | ||
| will reach bottom dead center when you | ||
| have the highest reading on the Rotacator | ||
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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 |
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| 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. |
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