12.Install the cutterhead (Figure 6) with the lock washers and hex nuts removed in Step 5.
Figure 6. Example of spiral cutterhead installed.
13.Tighten the spiral cutterhead in place, and ensure both pulley setscrews are tight.
14.Using the straightedge and feeler gauge set, inspect the cutterhead parallelism with the outfeed table as shown in Figure 7. With the straightedge in position, raise or lower the outfeed table until the cutterhead body (not the carbide insert) just touches the straight- edge.
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Figure 7. Checking cutterhead parallelism.
15.Move the straightedge to the other side to determine if one end of the cutterhead body is higher/lower than the other. (Place the feeler gauge between the cutterhead body and the straightedge to determine the height difference.)
—If the cutterhead is even or within 0.004" with the outfeed table from one side to the other, skip to Step 18.
—If the cutterhead is over 0.004" from one side to the other, go to Step 16.
16.Loosen the hex nuts securing both bearing block studs, lift the spiral cutterhead slightly, then place a shim beneath the bearing block that needs to be adjusted.
Note: Use the shims from your old cutterhead if available. If not available, newspaper is approximately 0.003" thick and will work for shimming (we don't recommend shimming more than 0.004" on either side, as this may affect how the bearing block seats in the cast- ing).
17.Repeat Steps 14–16 and adjust if necessary, then tighten the hex nuts on the bearing block studs.
18.Place a straightedge on the outfeed table so it extends over the cutterhead, and rotate the cutterhead pulley until one of the carbide inserts is at top-dead-center (TDC), as shown in Figures 8 & 9.
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