Replacing Cutter Knives - Jet JJP-10BTOS Operating Instructions And Parts Manual

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.
Cutterhead
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 14 and 15 (page 15):
3. Turn all seven gib lock screws (A) into the lock
bar (B) by turning in a clockwise direction as
viewed from the infeed table (K).
4. Carefully remove the cutter knife (C) and lock
bar (B).
5. Repeat for the remaining knife.
6. Thoroughly clean all surfaces of the cutterhead,
knife slots and lock bars of any dust or debris.
7. Insert the first 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 the remaining blade.
Following installation, the knives must be adjusted
as described in Cutterhead Knive Adjustment on
page 15.
Jointer Fence Adjustment
Referring to Figure 16:
The jointer fence (A) can be adjusted from a full forward
position (90º to table, corresponding to a scale reading
of 0º) to a full back-tilted position of 135 º (scale reading
of 45 º).
If setting to maximum positions do not stop the fence at
0º or 90º, make adjustments as follows:
knives are
Fence 90º Adjustment
1. Loosen lock handle (H) and bring fence fully
forward. Using a square, determine if the fence is
90º to the table.
If adjustment is required:
2. Loosen jam nut (E) and adjust stop screw (D) in or
out until a fence postion of 90º with respect to the
table is achieved.
3. Secure the jam nut (E).
Check the scale indication. If the indicator (C) does not
point to zero:
4. Loosen screw (B), adjust accordingly, then retighten
screw.
Fence 45º Adjustment
Verify that the fence and scale indication is accurate at
90º as outlined in Fence 90º Adjustment above.
1. Loosen lock handle (H) and set the fence all the
way back. Using a square, determine if the fence is
135º to the table.
If adjustment is required:
2. Loosen jam nut (G) and adjust stop screw (F) in or
out until a fence postion of 135º with respect to the
table is achieved. Note: The screw head stops
against the fence mounting bracket.
3. Secure the jam nut (G).
16
Figure 16