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10
Installing Chisel and Auger
Referring to Figure 6:
1. Open door (A).
2. Swing two bushing spacers (B) away from the
head (C).
3. Loosen the lock screw (D).
4. Insert the chisel bushing* (E) into the head (C),
lining up the hole (F) with the lock screw (D).
5. Set the lock screw (D) so the threaded end
extends into the hole (F) of the bushing (E),
holding it in place. The bushing should still
have about 1/4" of vertical travel margin.
The chisel to auger clearance (see Figure 5) is the
vertical clearance between the auger and chisel.
When assembled, the proper chisel to auger
clearance is dependant on the chisel size and the
position of the chisel (adjustable) with respect to
the auger (which is fixed). The position of the
chisel is set with spacers described in the following
steps.
6. Position spacers (B) so they rest against the
bushing above the lip (J).
Number of spacers to use:
For chisels 1/2" or less – use the
upper spacer only
For chisels greater than 1/2" – use
both spacers
Chisels are extremely sharp.
Use extreme care when handling to prevent
personal injury.
7. Insert the auger (K) into the chisel (L). Then
insert the assembly through the bushing (E).
Using gloves or a block of wood, press up on
the auger as far as it will go. The shank should
slide into the opening in the bottom of the
chuck (M).
8. Using the chuck key, tighten the chuck (M) to
secure the auger (K).
9. Move the spacers (B) away from the
bushing (E), push the chisel and bushing up
against the head (C); then tighten the lock
screw (D).
Hint: Set the slot in the side of the chisel to the left
or right if the workpiece is to be moved laterally
and front or back if it is to be moved from front to
back. The workpiece should be moved so that the
slot in the chisel is releasing chips into the already
cut part of the workpiece (see Figure 13).
* Only if changing bushings. The 701 Mortiser comes with the
5/8" bushing already installed.
Figure 6
Note: This would be a good time to make sure that
the chisel is parallel to the workpiece. See the
Chisel Parallel to Workpiece section.