7

WARNIN G:

MISUSE or failure to follow the safety rules stated

in this instruction manual may cause serious

personal injury.

FUNCTIONAL DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and unpl ugged before adjusting or checking function on the tool.

Selecting the cutting action (Fig. 1)

This tool can be operated with an orbital or a straight line (up and down) cutting action. The orbital cutting action
thrusts the blade forward on the cutting stroke and greatly increases cutting speed.
To change the cutting action, just turn the cutting action changing lever to the desired cutting action position.
Refer to the table to select the appropriate cutting action.

Switch action (Fig. 2)

CAUTION:
• Before plugging in the tool, always be sure that the tool
is switched off.
To start the tool, slide the switch lever to the “I” position.
To stop the tool, slide the switch lever to the “O” position.

Speed adjusting dial (Fig. 3)

For 4351CT, 4351FCT
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 work-
piece to be cut. However, the appropriate speed may dif-
fer 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.
CAUTION:
• 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
shock.

Lighting up the lamps

For 4351FCT only

CAUTION:
• Do not look in the light or see the source of light
directly.
To turn on the lamp, pull the trigger. Release the trigger
to turn it off.
NOTE:
• 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.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.

Installing or removing saw blade (Fig. 4, 5 & 6)

CAUTION:
• 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 immediately
after operation; they may be extremely hot and could
burn your skin.
• Tighten the saw blade securely. Failure to do so may
cause a serious injury.
Position Cutting action Applications
0Straight line cutting action For cutting mild steel, stainless steel and plastics.
For clean cuts in wood and plywood.
ISmall orbit cutting action For cutting mild steel, aluminum and hard wood.
II Medium orbit cutting action For cutting wood and plywood.
For fast cutting in aluminum and mild steel.
III Large orbit cutting action For fast cutting in wood and plywood.
Workpiece to be cut Number on adjusting dial
Wood 4 – 5
Mild steel 3 – 5
Stainless steel 3 – 4
Aluminum 3 – 5
Plastics 1 – 4