Powermatic PM3000 - Manual (Page 17)

17
Riving Knife Adjustment
Lateral alignment
The saw blade and riving knife must be in line
as close as possible with each other (lateral
alignment) for the prevention of kickback. Upo n
initial blade guard and riving knife installation no
further adjustment should be necessary.
Alignment should be checked and adjusted, if
required, after each blade change.
Check the alignment as follows:
1. Remove the blade guard and pawl (C, E,
Figure 8).
2. Place a straightedge (A, Figure 16) on the
table so it rests against the blade (B, Fig 16)
and riving knife (C, Figure 16). Rotate the
blade so the top of the blade tooth touches
the straightedge.
The saw blade and riving knife must be in
line.
If adjustment is required:
3. Remove the blade guard (C, Figure 8) and
table insert.
4. Loosen the lock handle (A, Figure 17) and
remove the riving knife, making a note as to
which direction the riving knife needs to be
moved to align it with the saw blade.
5. Using a 3mm hex wrench, make
adjustments to four set screws (D, Figure
18) accessible through openings located in
the corners of the
floating clamp block (B,
Figure 18).
Adjust any number of setscrews required to
bring the riving knife in alignment with the
saw blade. Then reinsert the riving knife,
secure by tightening the lock handle (A,
Figure 17) and check the alignment per
step 2.
Note: Position the lock handle towards the
saw blade as shown in Figure 17. This will
avoid the table insert from being lifted whe n
the blade is raised with the handwheel.
6. Repeat steps 3–5 until the alignment is
correct.
Blade proximity alignment
The gap between the saw blade and riving knife
must be between 3 and 8mm (Figure 19). If
adjustment is needed, note whether the blade to
knife gap needs to be increased or decreased.
Then adjust as follows:
1. Remove the blade guard, pawl, table insert
and riving knife.
Figure 16
Figure 17
Figure 18
Figure 19