Black & Decker BDCJS20B Manuel D'instructions page 6

• To switch the tool on, press the variable
speed switch (1). The tool speed depends
on how far you depress the switch.
• To switch the tool off, release the variable
speed switch.
How to use the sightline
(figure H)
• Use a pencil to mark the cutting line.
• Position the jig saw over the line (11).
• Viewing from directly above the jig saw,
the line of cut can be easily followed.
H
HINTS FOR OPTIMUM USE
General
• Use a high speed for wood, a medium
speed for aluminum and PVC and a low
speed for metals other then aluminum
Specific materials also require specialty
blades (sold separately).
sawing laminates
As the saw blade cuts on the upward stroke,
splintering may occur on the surface closest
to the shoe plate.
• Use a fine-tooth saw blade.
• Saw from the back surface of the workpiece.
• To minimize splintering, clamp a piece of
scrap wood or hardboard to both sides of the
workpiece and saw through this sandwich.
sawing metal
• Be aware that sawing metal takes much
more time than sawing wood.
• Use a saw blade suitable for sawing metal.
• When cutting thin metal, clamp a piece
of scrap wood to the back surface of the
workpiece and cut through this sandwich.
• Spread a film of oil along the intended line
of cut.
Rip / Circle Cutting (Figure I - j)
Ripping and circle cutting without a pencil line
are easily done with the rip fence / circle guide
(not included - available at extra cost).
Using the screw supplied with the accessory
guide, position as shown in figure I and
thread the screw into the shoe to clamp the
fence securely.
When ripping, position as shown in figure I
and slide the rip fence under the screw from
either side of the saw. Set the cross bar
at desired distance from blade and tighten
screw. For ripping, the cross bar should be
down and against the straight edge of the
workpiece as shown.
® Feature
11
6
I
When circle cutting, adjust rip fence so that
distance from blade to hole in fence arm is at
the desired radius and tighten screws. Place
saw so that hole in fence arm is over center
of circle to be cut (drill hole for blade or cut
inward from edge of material to get blade into
position). When saw is properly positioned,
drive a small nail through hole in fence arm.
Using rip fence as a pivot arm, begin cutting
circle. For circle cutting, the cross bar should
be up, as shown in figure j.
j
Pocket Cutting (FIGURE k)
A pocket cut is an easy method of making an
inside cut. The saw can be inserted directly
into a panel or board without first drilling a
lead or pilot hole. In pocket cutting, measure
the surface to be cut and mark clearly with a
pencil. Next tip the saw forward until the front
end of the shoe sits firmly on the work surface
and the blade clears the work through its full
stroke. Switch the tool on and allow it to attain
maximum speed. Grip the saw firmly and
lower the back edge of tool slowly until the
shoe sits flate on the surface. Hold the shoe
flat against the wood and continue cutting.
Do not remove blade from cut while it is still
moving. Blade must come to a complete stop.
k