Setting Cutterhead Knives (Model 54A Only) - Powermatic 54A Instructions D'utilisation Et Manuel De Pièces

If the apex of the knife number one comes
below the straightedge (a gap exists) or
pushes the straightedge up, proceed with the
following steps:
5. Loosen both gib lock screws (Figure 22).
6. With the outfeed table handwheel (Figure 21)
raise or lower the outfeed table until the
straight edge contacts the knife tip, as shown
in Figure 23. Using the drive belt or pulley,
rock the cutterhead slightly to make sure the
apex of the knife is just barely contacting the
straight edge.
When adjustment is complete:
7. Lock the outfeed table to this height setting by
tightening the gib lock screw (Figure 22). The
outfeed table adjustment is complete.
The outfeed table adjustment is only made against
one knife or knife insert (blade number one was
arbitrarily selected here). After the outfeed table
has been set at the correct height, do not change it
except for special operations or after replacing
knives.
After this adjustment is completed on the model
54A, it is necessary to proceed to the Setting
Cutterhead Knives section to verify that all three
knives are at the correct height and parallel to the
outfeed table. For the model 54HH, proceed to
Replacing or Rotating Knife Inserts on page 20.
Setting Cutterhead Knives (Model 54A
only)
Note: Before setting knives for the 54A Jointer, the
Outfeed Table Height Adjustment should be done
to ensure the proper knife height in relation to the
outfeed table.
Knives for the 54A cutterhead are adjusted by
means of a cam. It is important to note that the
entire adjustment is accomplished within one
complete rotation (360 degrees) of the cam. A full
rotation of the cam will cause the knife blade to
move a total of .015" from one extreme to the
other. Turning the cam more than one full rotation
will not further adjust the knife setting, but will
simply begin the adjustment all over again. The
knife adjustment procedure is outlined below.
Cutterhead
dangerously sharp! Use extreme caution when
inspecting, removing, sharpening or replacing
knives into the cutterhead. Failure to comply
may cause serious injury!
To adjust (refer to Figures 24 & 25):
1. Disconnect jointer from power source.
knives are
17
Figure 22
Figure 23