21
8. Use the indexing tool to control the
cutterhead and put a twist in the knife so
the knife indexing tangs seat in the
cutterhead alignment groove. See Figure 24.
9. Position the three-hole gib, and make sure
you thread the gib screws into the cutter
head with proper alignment so you do not
cross-thread the cutterhead. See Figure 25.
10. Tighten the gib screws on the the two-hole
gib and the three-hole gib.
11. Working from left-to-right, repeat Steps 8
and 9on the remaining gibs and tighten
each gib from left-to-right until the new
knife is installed.
12. Rotate the cutterhead to the next knife
and repeat Steps 4 through 11.
13. Reinstall and adjust the chip deflector and
reinstall the dust hood.
Figure 24. Twisting knife and aligning gib.
Figure 25. Keeping tangs in alignment groove.
NOTICE
Uneven tightening or over-tightening the gib
bolts may warp the cutterhead, causing it to
become unbalanced, which will lead to
premature knife and bearing wear from
vibration.