Jet ProShop II, Руководство по эксплуатации

Страница: 22 / 40

22
Figure 8-4
In ripping, use one hand to hold the board down
against the fence or fixture, and the other to push it
into the blade between blade and fence. If
workpiece is narrower than 6" (150mm) or shorter
than 12" (304.8mm), use a push stick or push
block to push it through between fence and blade
(Figure 8-5). Never push in a location such that the
pushing hand is in line with the blade. Move the
hand serving as a hold-down a safe distance from
blade as cut nears completion. For very narrow
ripping where a push stick cannot be used, use a
push block or auxiliary fence. Always push the
workpiece completely past the blade at the end of
a cut to minimize the possibility of a kickback.
Figure 9-5
When ripping long boards, use a support at front of
table (A, Figure 8-6), such as a roller stand, and a
support or "tailman" (B) at the rear.
Never use the rip fence beyond the point where the
carriage is flush with the end of the rails.
Have the blade extend about 1/8" (3.175mm)
above the top of the workpiece. Exposing the blade
above this point can be hazardous.
Figure 8-6
9.3 Resawing
Resawing is a ripping operation in which thick
boards are cut into thinner ones. Narrow boards up
to 3" (76.2mm) can be resawn in one pass. Wider
boards up to 6" (150mm) must be resawn in two
passes.
In resawing wider boards, adjust the blade height
so as to overlap the two cuts by 1/2" (12.7mm) as
shown in Figure 8-7. Too deep a first cut can result
in binding and possible kickbacks on the second
cut. Always use the same side of the board against
the fence for both cuts.
Figure 8-7
9.4 Crosscutting
Crosscutting is where the workpiece is fed cross
grain into the saw blade using the miter gauge to
support and position the workpiece (Figure 8-8).
Crosscutting should never be done freehand nor
should the fence be used as an end stop unless an
auxiliary block (A, Figure 8-9) is clamped to the
front of the blade area such that the cutoff piece
comes free of the block before cutting starts.