Jet 718200K, Operating Instructions And Parts Manual

Page: 15 / 32

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4. Before assembly, clean all parts
thoroughly and clear cutterhead knife
slots of any dust or debris.
5. Insert knife into the cutterhead channel
making sure it faces the proper
direction.
6. Insert lock bar and screws and tighten
to hold in place. Blades are set at the
proper height when the top of the blade
is 1/16" above the cutterhead.
7. Repeat for other two blades.
8. To set the knives to the outfeed table
and to the same height in the
cutterhead, see section titled “Leveling
Outfeed Table to Cutterhead Knives”
found on page 12 of this manual.
Replacing or Rotating Knife
Inserts (JWJ-8HH only)
The knife inserts on the model JWJ-8HH
Jointer are four-sided. When dull, simply
remove each insert, rotate it 90° for a fresh
edge, and re-install it.
Use the two provided star point
screwdrivers to remove the knife insert
screw. See Figure 26. Use one of the
screwdrivers to help hold the cutterhead in
position, and the other to remove the
screw. It is advisable to rotate all inserts at
the same time to maintain consistent
cutting. However, if one or more knife
inserts develops a nick, rotate only those
inserts that are affected.
Each knife insert has an etched reference
mark so that you can keep track of the
rotations.
IMPORTANT: When removing or rotating
inserts, clean saw dust from the screw, the
insert, and the cutterhead platform. Dust
accumulation between these elements can
prevent the insert from seating properly,
and may affect the quality of the cut.
Before installing each screw, lightly coat the
screw threads with machine oil and wipe off
any excess.
Securely tighten each screw which holds
the knife inserts before operating the
planer!
Make sure all knife insert
screws are tightened securely. Loose
inserts can be propelled at high speed
from a rotating cutterhead, causing
injury.
Figure 24
Figure 25
Figure 26