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PowerTec 71759 Owner's Manual page 6

Box joint jig

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Set the Spacing for Box Joints:
Please note it will be necessary to remove Clamp Guard (L) to set
the Stop Plates. Replace, using the steps shown in Figure 10
before making cuts.
See Figure 12. Notice the "Foot" of the Stop Plates protrudes
past the installed MDF Sub Fence (C). From the front the Fence
Stops should be to the right of the blade/bit. When viewed from
the back the Stops will be to the left of the blade/bit.
- Adjustment Knob (M) moves Adjustable Plate (P).
Turn clockwise (right) to reduce spacing between
Stops. Turn counterclockwise (left) to widen spacing
4
between Stops.
- Knurled Knob (K) moves Adjustment Mechanism (O)
side-to-side (toward and away from the bade) .
WARNING
Risk of injury or damage to equipment. Do not allow metal blade/
bit to come in contact with any metal portion of the Box Joint Jig.
Figure 12
Determine Size of Pin to Be Cut:
Set Joint Spacing
Turn Adjustment Knob (M)
counterclockwise to widen
spacing for Stop Plate (P).
Place a setup block on top of
the Stops. Turn Adjustment
Knob (M) clockwise to reduce
spacing until the sides of the
setup block and the recessed
edges of the two Stops are
flush. Remove setup block.
Set Blade Distance
Loosen Knurled Knob (K)
and slide Adjustment
Mechanism (O) to the left.
Rest the same setup block
on the inset ledge of Fixed
Stop (R) and between the
blade. Make adjustments to
spacing as needed. Tighten
Knurled Knob (K). Remove
setup block.
Figure 13
Figure 14
Cut the Test Joint:
1. If needed, move MDF Sub Fence (C) to a fresh section.
This will provide support and help prevent the pins from
breaking out.
2. Replace Clamp Guard (L).
3. See Figure 15. Once the spacing and blade distance are
set, two mating scrap boards will be needed for a test run.
Mark these in the same manner as shown in "Setting Up the
Workpieces".
4. Note the direction of the marked indicators on the
workpieces. In this example "B" side workpiece will be the
first piece cut.
5. Place the test workpiece resting it on the narrow ledge of the
foot of Fixed Stop Plate (R), to the right of the blade.
NOTE: A small clamp may be needed to secure the workpiece.
Figure 15
6. See Figure 16. Turn on the table saw.
7. Carefully slide the Box Joint Jig far enough forward to cut
through the workpiece. This will also cut through the MDF and
may cut through the Clamp Guard, which is typical.
8. Turn off the machine and inspect the cut.
Figure 16

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