Porter Cable PC160JT Manuel D'instructions page 10

ADJUSTINg KNIVES
When it becomes necessary to replace or adjust the knives
due to replacement or wear:
The knives are sharp.
Disconnect machine from power source.
1. Remove cutterhead guard.
2. To replace a knife, disengage the cutterhead lock (A) Fig.
30. Rotate cutterhead, loosen four screws (B) and remove
bar and knife. Insert new knife and replace bar and slightly
tighten four screws (B).
Be extremely careful that your hands do not
come in contact with the knives.
3. To adjust the knives, make sure the cutterhead lock (A)
Fig. 30 is not engaged. Make sure screws (B) are not overly
tightened. Loosen each one half turn or only enough so
knife can slide between locking plate and cutterhead.
4. Rotate cutterhead and engage cutterhead lock (B) Fig. 31,
on cutterhead shaft as shown. This will position knives for
proper adjustment to the outfeed table.
5. Place a straight edge (D) Fig. 31, on the outfeed table
extending out over the knife as shown. Using wrench (C)
supplied, turn screw (E) until knife just touches straight
edge. Adjust knife at near end of cutterhead in the same
manner turning screw (F). Tighten four screws (B) Fig. 30,
after adjustment is made.
NOTE: Make sure cutterhead lock (B) is disengaged after
adjustment is completed and replace cutterhead guard.
6. If the knives are set too low, the result will be as shown in
Fig. 32, and the finished surface will be curved.
7. If the knives are set too high, the work will be gouged at the
end of the cut, as shown in Fig. 33.
8. As a final check, run a piece of work slowly over the knives
for 6 to 8 inches (152 to 203 mm). The wood should rest
firmly on both tables as shown in Fig. 34, with no open
spaces under the finished cut.
Make certain that all knives are securely
fastened in cutterhead before turning on power.
CHIP AND DUST CHUTE
A chip and dust chute (A) Fig. 35 is provided on the outfeed end
of the jointer base for efficient chip removal.
Keep hands out of chip and dust chute at
all times.
34
MATERIAL
OUT-FEED
TABLE
KNIVES AT
CORRECT HEIgHT
IN-FEED TABLE
CUTTER
30
31
B
32
OUT-FEED
TABLE
KNIVES
SET TOO LOW
33
OUT-FEED
TABLE
KNIVES
SET TOO HIgH
35
10
B
A
C
E
F
MATERIAL
IN-FEED TABLE
CUTTER
MATERIAL
IN-FEED TABLE
CUTTER
GOUGE
A
D