Jet JJP-12, Operating Instructions And Parts Manual

Page: 15 / 40

15
Replacing Cutter Knives
Disconnect machine from
power source before making any adjustments.
Failure to comply may cause serious injury.
1. Disconnect machine from the power source.
2. Remove the cutterhead guard (B, Fig. 6).
Cutterhead knives are
dangerously sharp. Use extreme caution when
inspecting, removing, sharpening, or replacing
knives into the cutterhead. Failure to comply
may cause serious injury.
Referring to Figures 11 and 12 (page 14):
3. Turn all five screws (A) into the lock bar (B) by
turning in a clockwise direction as viewed from
the
infeed table (G).
4. Carefully remove the cutter knife (C) and lock
bar (B).
5. Repeat for remaining two knives.
6. Thoroughly clean all surfaces of the
cutterhead, knife slots and lock bars of any
dust or debris.
7. Insert replacement knife (C) into the knife slot,
making sure it faces the proper direction.
8. Insert lock bar (B) and tighten just enough to
hold in place.
9. Repeat for other two blades.
The knives must now be adjusted as described in
Setting Cutterhead Knives on page 14.
Jointer Table Lock Handle Adjustment
Referring to Figure 10 on page 13:
For best performance, the jointer table lock
handles (A
2
) should be approximately in the fully
down position when in the locked position. If
adjustment is required:
1. Disconnect machine from power source.
2. Unlock the lock handle (A
2
) and raise the table
to the upright position.
3. Loosen locking nut (C
2
) with an 18mm wrench.
4. Adjust the table locking shaft (C
1
) in incre-
ments of 1/4 turns or less. Turn clockwise to
tighten the lock handle performance and
counterclockwise to loosen.
5. Tighten the locking nut (C
2
).
6. Test the locking function and repeat if neces-
sary.