Powermatic 60B - Manual (Page 14)

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7. Tightening the gib screws should be done in
increments, to prevent any distortion to the
cutterhead or buckling of knives. While
holding the gauge down on one knife, snug
down the five gib screws, beginning with the
center screw and working your way to the
ends. Do not fully tighten yet.
8. Rotate the cutterhead to the next slot and
repeat steps 6 and 7, only making the
knives snug. Repeat for the third knife.
9. The tightening process should continue at
least two more times, each time tightening
the screws more on all three knives. On the
third time, they should all be firmly
tightened.
Before starting jointer, make
sure all gib screws are firmly tightened. A
loose knife thrown from the cutterhead can
cause severe or fatal injury.
10. After replacing knives, the outfeed table
must be checked and adjusted so that it is
level with the high point of the knives. See
“Setting Outfeed Table” on page 16.
Leveling Tables
The tables have been leveled with each other
from the factory, but this should be confirmed by
the user, and checked periodically, by placing a
steel straight edge across both tables. If tables
are not level, this may be the result of loose
gibs. Correct as follows:
1. Loosen hex nuts on the gib screws (A,
Figure 18) with a 12mm wrench, then
loosen the gib screws with a 4mm hex
wrench. Loosen the table lock handle (B,
Figure 18).
2. Remove lower hex nut and gib screw (A*,
Figure 18) and check screw hole to make
sure that punch mark in the gib is aligned
with the screw hole. If punch mark is not
visible, or it does not line up with screw
hole, use a screwdriver to lightly tap the gib
back into alignment.
3. Replace the lower gib screw (A*, Figure 18)
but do not tighten.
4. Carefully tighten the table lock screw (B,
Figure 18). The table will begin to move
toward the straight edge.
5. When aligned, re-set the gib screws (A,
Figure 18) until tight. If table does not align
with straight edge, use the adjusting arm (C,
Figure 18) for the infeed table, or handwheel
(D, Figure 18) for the outfeed table, until the
table is flush with the straight edge.
Figure 18