Biesemeyer B78440 User manual

1352457_RevB_11-12-07
MODELS B78440 & B78441
Anti-kickback Spreader for thr Powermatic 66 Tablesaw
COMPONENTS
1. Snap-in Spreader
2. 1/4-20 x 1-3/4” Carriage Bolt
3. 1/4” Washer
4. 1/4” Locknut
5. Hex Wrench
6. 1/2” self-tapping screw ( install in a place
convenient for you to store the splitter).
7. Receiver
4
1
2
ASSEMBLy
1. Remove the guard and splitter unit that came with your
saw. Open the side cover of the saw and loosen the
screw that holds the guard-mounting rod. Remove the
guard.
2. Remove the jackscrew from the table saw casting.
Remove and discard the large locking nut and the 3/8”
stud (Fig. 1) from the jackscrew. You may need to use a
3/8-16 tap to clean the threads in the jackscrew.
3. Replace the modified jackscrew in the table saw casting.
4. Use the provided hex wrench to remove the plate (Fig. 2)
from the receiver.
Remove the large nut
Remove the 3/8” stud
Fig. 1
Fig. 2
3
5 6
7

5. Insert the 3/8-16 x 3/4” hex screw (Fig. 3) through the
hole in the receiver and into the modified jackscrew.
Place the tail portion of the receiver flat against the
trunnion. Hand-tighten for further adjustment.
NOTE: You may need to machine the head of the jackscrew
(Fig. 4) if the jackscrew will not go far enough to allow the
spreader blade to align with the saw blade.
7. Insert the 1/4-20 x 1-3/4” carriage bolt (Fig. 5) through
the hole in the receiver and the hole in the trunnion.
Securely fasten with the 1/4” washer and locknut.
8. Use the provided hex wrench to replace the plate on the
receiver.
IMPORTANT: This splitter is designed to be used with the
basket-style over-arm blade guards. Always use your splitter
for through-cutting operations.
Fig. 3
Fig. 4
Fig. 5