Riving Knife / Splitter; Main Barrier Guard; Anti-Kickback Device; Making Work Helpers - Bosch 4100XC Instrucciones De Funcionamiento

1600A01Z1U.qxp_4100XC 10/31/19 1:21 PM Page 30
Fig. 37
A

RIVING KNIFE / SPLITTER

The riving knife (splitter) is the central ele-
ment of the Bosch Smart Guard blade guard-
ing system, serving as the attachment point
for both the main barrier guard and the anti-
kickback device. In the event that the main
barrier guard and anti-kickback device are re-
moved, the riving knife maintains its function-
ality as material splitter, and can be quickly
adjusted to three positions (through cut A,
non-through cut B, and dado C), depending
on the application requirement (Fig. 37). Be-
cause of this adjustability, the riving knife can
be appropriately positioned for all cutting ap-
plications.
The riving knife (splitter) can be easily ad-
justed to one of three heights by removing
the table insert, raising the blade to its full
height and releasing the riving knife release
lever at the base of the riving knife. The riving
knife should be locked in its through cut
(highest) position for use with the main bar-
rier guard and anti-kickback device. It can be
adjusted to its non-through cut (middle) po-
sition for use as a material splitter without
the main barrier guard and anti-kickback de-
vice. In the event that the riving knife cannot
be used for a specific cut or for use with a
dado blade, it can be adjusted to its dado
(lowest) position, placing it 1" (25.4mm)
above the table surface when the blade is at
its full height.

MAIN BARRIER GUARD

The main guard is comprised of a pair of plas-
tic barriers attached to the metal upper bar-
rier guard. The side barriers (one to the left
and one to the right of the blade) operate in-
dependently of one another, maintaining
maximum blade coverage during cutting op-
erations. The main guard incorporates a
quick-connect attachment point and can be
attached or removed from the blade guarding
system independent of the anti-kickback de-
vice and riving knife / splitter.
30
Basic Table Saw Operation
B

ANTI-KICKBACK DEVICE

Making Work Helpers

C
The main barrier guard component can be
quickly attached and detached through the
use of a quick release lever. The guard is at-
tached by seating the crossbar into the top of
the riving knife / splitter and engaging the
locking lever. Following this process in re-
verse, the guard can be easily removed for
special operations such as dados or rabbets.
Note: To best secure the main guard for relo-
cation, adjust the blade to its lowest position.
This keeps the guard tight to the table sur-
face and prevents damage related to the
guard swinging during relocation. If trans-
porting over a longer distance on/off the job,
place guard in its below table storage posi-
tion (See Figure 17, page 22).
In the event of kickback, the anti-kickback de-
vice is intended to help prevent the board
from being thrown in the direction of the
user. The sharp teeth of the pawls are in-
tended to "catch" the material in the event of
kickback.
The anti-kickback device can be easily at-
tached by aligning the attachment pin with
the hole in the rear of the riving knife / split-
ter. It can be easily re-moved by depressing
the compression pads on both sides of the
anti-kickback device and lifting it away.
Before cutting any wood on your saw, study
all of the "Basic Table Saw Operations".
Notice that in order to make some of the cuts,
it is necessary to use certain devices, "Work
Helpers", like the push stick, the push block
and the auxiliary fence, which you can make
yourself.
After you have made a few practice cuts,
make these "help ers" before starting any
projects. Make the "push stick" first.