Hints For Optimum Use - Black & Decker BDCJS20 Instruction Manual

G
• 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.
®
Feature
11
6
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.
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.