SKETCHNBUILD SNB-12A, Manual

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4.1.2 Setting of Riving Knife
With respect to safety, the accurate setting of riving knife plays a very important
role. The distance between riving knife and toothed ring in cut height area shall be
more than 8mm, and the distance in most common use is about 5mm and that of the
lower part is 3mm.
When setting riving knife, the power supply must be cut off, for setting riving knife,
move the upper bracket to terminal position of unlocking device, fold the orange
check plate downwards, subsequently, loosen the set screws on the holder of riving
knife with special spanner, then move it in the fixed groove to adjust its height,
remove the whole riving knife holder along the track to adjust the distance between
riving knife and saw blade, and observe the scale on the riving knife at the same time,
then tighten up the set screws and shut to the guard.
4.2 Extension of Table
The worktable attached to the table may prevent workpiece from inclining
backward in cutting and improve the safety. The attached worktable is a necessary
part of a standard machine.
4.3 Pressure Utensil
The pressure utensil is used for pressing workpiece on the sliding table.