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G1021Z 15" Planer -21-
Figure 22. Chip breaker height adjustment.
6. If an adjustment is necessary, loosen the
locknuts and turn the setscrews. See
Figure 22. Stop turning when the bottom of
the chip breaker just touches the gauge
block.
7. Re-tighten both locknuts
8. Replace the exhaust hood.
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 adjust-
ed.
3. Place the gauge block on the table directly
under the cutterhead. Using a one millime-
ter (0.040") feeler gauge between the
gauge block and the cutterhead, raise the
table until one of the knives just touches the
feeler gauge. Rotate the cutterhead manu-
ally 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 21. 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.
Figure 21. Location of chip breaker assembly.
Gauge Block
Chipbreaker Infeed Roller
Cutterhead
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 electri-
cal shock hazard.