ADJUSTMENTS USING SPRINGS

The knives are locked into the cutterhead with wedge-type gibs and gib bolts. Jack screws under the knives may be substituted with springs to help in the setting process. It is advised that the jack screws be removed when using the springs. To set the knives:

1.UNPLUG THE PLANER!

2.Remove the upper cover to expose the cut- terhead.

3.Loosen the gib bolts until the knife is loose in the slot. The gib bolts turn clockwise to loosen and counterclockwise to tighten (when facing the head of the bolt). See

Figure 19.

Figure 19. Side view with springs.

4.Place the knife setting gauge on the cutter- head as described previously, so the feet are securely planted on the cutterhead. Make sure the gauge extension rod is par- allel to the cutterhead to maintain accuracy.

5.The downward pressure provided by the gauge will set the knives at a uniform pro- trusion of approximately .070" above the cutter. The knife height should vary no more than .002"-.003" across the length of the cutterhead.

Figure 20. Tightening knives in cutterhead.

6.Maintain a constant pressure on the gauge while re-tightening the gib bolts. See Figure 20.

7.Repeat the same procedure on the remain- ing knives. As mentioned before, the stan- dard knife setting gauge is satisfactory for reasonably accurate knife setting tasks.

When making adjustments, all three knives must be adjusted the same. Do not adjust one knife without adjusting the others as well. Improper knife height adjustment can result in damage to knives, poor planer performance and possible operator injury.

Planer knives are dangerously sharp. Use extreme caution when inspecting, remov- ing, sharpening, or replacing knives into the cutterhead. Substantial risk of injury!

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G1021Z 15"

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