Grizzly G1021 instruction manual Chip Breaker, To Adjust the Chipbreaker

4.While holding the position of the knife setting jig, tighten the gib bolts down again in the cutterhead. Tighten the bolts evenly from the outside, working toward the middle. See Figure 16.

5.Repeat these steps for the other two knives.

Figure 16. Tightening knives in cutterhead.

Chip Breaker

The chip breaker is located on the top side of the planer and extends down around the front of the cutterhead. Its function is to prevent tear-out or deep, unregulated gouging as the knives remove material. The chip breaker works by breaking the woodchips as they are being cut by the cutter- head. The chip breaker also deflects and expels the woodchips away from the surface of the board and out of the planer.

TO ADJUST THE CHIPBREAKER:

1.Disconnect the machine from the power source, remove the dust hood and lower the table.

2.Ensure that the knives are properly adjusted.

3.Place the gauge block on the table directly under the cutterhead. Using a one millimeter (0.05") feeler gauge between the gauge block and the cutterhead, raise the table until one of the knives just touches the feel- er gauge. Rotate the cutterhead manually to be sure the knife is at bottom dead center.

4.Lock the table by tightening the table lock knobs.

5.Remove the feeler gauge and slide the gauge block under the chip breaker. See Figure 17. The chip breaker should just touch the top of the gauge block. Slide the gauge block to the opposite end of the chip breaker and check it in the same manner.

Cutterhead Chipbreaker Infeed Roller

Gauge Block

Figure 17. Location of chip breaker assembly.

WARNING

DO NOT make adjustments while the planer is running. Ensure that the switch is off, power is disconnected and moving parts have stopped before making adjustments. Failure to ensure that power is disconnect- ed could result in serious injury or electrical shock hazard.

-20- G1021 15" Planer