Feed Rollers &
Pressure Bar
The feed rollers are factory set at .040" below the knife edge at bottom dead center. Adjusting them can be a difficult process and is not recommend- ed when the machine is new, unless the adjust- ments are necessary for a specific application. If you are not getting satisfactory performance from the feed rollers, adjustments are necessary.
Although not required, we recommend using a Rotacator® for the following setup. Check with the current Grizzly catalog for details.
To set the feed rollers and pressure bar with hardwood blocks:
1.Make sure the machine is disconnected from power and the knives have been adjusted properly!
2.Obtain a milled piece of hardwood that is within .002" from one side to another. Rip this piece down the middle. (Two separate boards may also be used if they are within
.002" of each other in thickness.)
3.Lower the table rollers below the surface of the table and lock the cutterhead in place.
4.Place the boards on each side of the table as shown in Figure 15, so each board spans from the front of the table to the back.
Hardwood Blocks |
Figure 15. Board position on table.
Extreme Duty Planers
5.Open the cover. Remove the nut and spring on the tension stud. Rotate the pressure bar up so it covers the cutterhead.
6.Open the left cabinet door. Loosen the check nuts shown in Figure 16, and turn the adjustment bolts to raise each block up approximately 1⁄2" (enough to be above the horizontal plane of bottom dead center of the cutterhead knife/insert).
Roller Blocks
Check Nuts
Adjustment Bolts
Figure 16. Left side roller controls.
7.Open the right cabinet door. Loosen the check nuts shown in Figure 17, and turn the adjustment bolt and setscrew to raise each block the same amount as those from the previous step.
Roller Blocks |
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Check Nuts |
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Adjustment Bolt | Setscrew |