To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
For continuous operation, pull the switch trigger and
then push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
Speed adjusting dial
For 4340CT, 4340FCT
The tool speed can be infinitely adjusted between 800
and 2,800 strokes per minute by turning the adjusting
dial. Higher speed is obtained when the dial is turned in
the direction of number 5; lower speed is obtained when
it is turned in the direction of number 1.
Refer to the table to select the proper speed for the
workpiece to be cut. However, the appropriate speed
may differ with the type or thickness of the workpiece. In
general, higher speeds will allow you to cut workpieces
faster but the service life of the blade will be reduced.
Workpiece to be cut
The speed adjusting dial can be turned only as far
as 5 and back to 1. Do not force it past 5 or 1, or
the speed adjusting function may no longer work.
The tools equipped with electronic function are easy to
operate because of the following features.
Constant speed control
Electronic speed control for obtaining constant speed.
Possible to get fine finish, because the rotating speed is
kept constant even under load condition.
Soft start feature
Safety and soft start because of suppressed starting
Lighting up the lamps
For 4340FCT only
Do not look in the light or see the source of light
To turn on the lamp, pull the trigger. Release the trigger
to turn it off.
Use a dry cloth to wipe the dirt off the lens of lamp.
Be careful not to scratch the lens of lamp, or it may
lower the illumination.
Number on adjusting dial
4 - 5
3 - 5
3 - 4
3 - 5
1 - 4
Always be sure that the tool is switched off and
unplugged before carrying out any work on the
Installing or removing saw blade
Always clean out all chips or foreign matter
adhering to the blade and/or blade holder. Failure
to do so may cause insufficient tightening of the
blade, resulting in a serious personal injury.
Do not touch the blade or the workpiece
extremely hot and could burn your skin.
Tighten the saw blade securely. Failure to do so
may cause a serious injury.
When you remove the saw blade, be careful not to
hurt your fingers with the top of the blade or the tips
To install the blade, open the tool opener to the position
shown in the figure.
Keeping that situation, insert the saw blade into the
blade clamp as far as the two protrusions of the blade
can not be seen.
Return the tool opener to its original position.
After installing, always make sure that the blade is
securely held in place by trying to pull it out.
Do not open the tool opener excessively, or it may
cause tool damage.
To remove the blade, open the tool opener to the
position shown in the figure. Pull the saw blade out
toward the base.
Occasionally lubricate the roller.
Hex wrench storage
Hold the tool firmly with one hand on the main
handle when performing the tool. If necessary, the
front part of the tool may be supported by the other
Always hold the tool base flush with the workpiece.
Failure to do so may cause blade breakage,
resulting in a serious injury.