Before Each Use; Choice Of Blade And Speed - Makita SJ401 Instruction Manual

BEFORE EACH USE:
Width
.I 1 0
.110
,095
Inspect your saw
DISCONNECT THE SAW. To avoid injury from accidental
starting, unplug the saw, push the switch "OFF" and lock the
switch before changing the setup or removing covers,
guards, or blade.
Inspect your workpiece
Make sure there are no nails or foreign objects in the part of
the workpiece to be cut.
Use extra caution with large, very small or awkward
workpieces:
Never use this tool to cut pieces too small to hold by hand.
Use extra supports (tables, saw horses, blocks, etc.) for
any workpieces large enough to tip when not held down to
the table top.
NEVER use another person as a substitute for a table
extension, or as additional support for a workpiece or to
help feed, support or pull the workpiece.
When cutting irregularly shaped workpieces, plan your
work so it will not pinch the blade. A piece of molding, for
example, must lay flat or be held by a fixture or jig that will
not let it twist, rock or slip while being cut.
Properly support round material such as dowel rods, or
tubing. They have a tendency to roll during a cut, causing
the blade to "bite". To avoid this, always use a " V block.
Cut only one workpiece at a time.
Clear everything except the workpiece and related support
devices off the table before turning the saw on.
Thickness
.020
,020
.010
Plan the way you will hold the workpiece from start to
finish
Do not hand hold pieces so small that your fingers will go
under the work hold-down. Use jigs or fixtures to hold the
work and keep your hands away from the blade.
Before freeing any jammed material:
Push switch "OFF".
Lock the switch.
Unplug the saw.
Wait for all moving parts to stop.
When backing out the workpiece, the blade may bind in
the kerf (cut). This is usually caused by sawdust clog-
ging up the kerf. If this happens:
Push switch "OFF".
Lock the switch.
Unplug the saw.
Wait for all moving parts to stop.
Remove the blade from the blade holders.
Remove workpiece with blade from the table. Remove
blade from workpiece.
Push switch "OFF".
Before removing loose pieces from the table, turn saw
off and wait for all moving parts to stop.
CHOICE OF BLADE AND SPEED
The scroll saw accepts a wide variety of blade widths and
thicknesses. The blade width and thickness and the number
Teet hllnc h
10
15
18
Speed
(StrokeslMin.)
C (1200- 1600)
B (600
-
1200)
A (400
-
600)
~
of teeth per inch are determined by the type of material and
the size of the radius being cut. See the following chart.
Material Cut
Popular size for cutting hard and soft woods 3/16 up to 2"
Also plastics, paper, felt, bone, etc.
Wood, plastic, extremely thin cuts on materials
3/32"
to
1/2" thick.
For tight radius work in thin materials 3/32 to
1 / 8
wood
veneer, wood, bone, fiber, ivory, plastic, etc.
As a general rule, always select the narrowest blades
recommended for intricate curve cutting and widest blades
for straight and large curve cutting operation.
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