Jet JJ-6CSDX, Инструкция по эксплуатации и каталог запасных частей

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21
Rotating and Replacing Knife Inserts
(JJ-6HHDX)
Knife inserts are dangerously
sharp. Use extreme caution when inspecting,
removing, or replacing knife inserts.
The knife inserts on the model JJ-6HHDX Jointer
are four-sided. When dull, simply remove each
insert, rotate it 90° for a fresh edge, and re-install
it. No further adjustment is necessary.
Use the two provided star point screwdrivers to
remove the knife insert screw. Use one of the
screwdrivers to help hold the cutterhead in
position, and the other to remove the screw. See
Figure 30a. 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
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.
Determining Correct Table Height
When you receive the jointer, the knives have
been pre-set at the factory. However, the height
and parallelism of the knives with the outfeed table
should be checked, and any needed adjustments
made, before putting the jointer into operation.
The outfeed table and cutterhead knives are
correctly adjusted when all three blades are
parallel to the outfeed table and all three blades
are set at the same height in the cutterhead.
Outfeed table too high – If the outfeed table is too
high, a curved finished surface results (Figure 31).
Outfeed table too low – If the outfeed table is too
low, the work will have a gouge, or snipe, at the
end of the cut (Figure 32).
Outfeed table at correct setting – Figure 33
illustrates the correct setting of outfeed table level
with the knives. The workpiece will rest firmly on
Figure 30a – HH models only
Figure 31
Figure 32
Figure 33
both tables with no open space under the finished
cut