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Makita jr 3070 t Manual

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SAVE THESE INSTRUCTIONS.
WARNING:
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
unplugged before adjusting or checking function on the
tool.
Adjusting the shoe (Fig. 1 & 2)
When the blade loses its cutting efficiency in one place
along its cutting edge, reposition the shoe to utilize a
sharp, unused portion of its cutting edge. This will help to
lengthen the life of the blade. To reposition the shoe, push
the shoe button in the “A” direction with a click and reposi-
tion as shown in the figure which allows you to make five-
way adjustment. To secure the shoe, push the shoe but-
ton in the “B” direction with a click.
Selecting the cutting action (Fig. 3)
This tool can be operated with an orbital or a straight line
cutting action. The orbital cutting action thrusts the blade
forward on the cutting stroke and greatly increases cutting
speed.
To change the cutting action, press the stopper and turn
the lever to the desired cutting action position. Then,
release the stopper to lock the lever. Refer to the table to
select the appropriate cutting action.
Note:
Orbital action means that the saw blade moves up and
down, and back and forth at the same time. This
increases the efficiency of cutting.
Switch action (Fig. 4 & 5)
CAUTION:
• Before plugging in the tool, always check to see that
the switch trigger actuates properly and returns to the
“OFF” position when released.
To start the tool, simply pull the switch trigger. Tool speed
is increased by increasing pressure on the switch trigger.
Release the switch trigger to stop. For continuous opera-
tion, pull the switch trigger and then push in the lock but-
ton.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
Speed adjusting dial (For JR3070CT)
The strokes per minute can be adjusted just by turning the
adjusting dial. This can be done even while the tool is run-
ning. The dial is marked 1 (lowest speed) to 6 (full speed).
Turn the adjusting dial without positive stops between 1
and 6 according to your work.
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:
• If the tool is operated continuously at low speeds for a
long time, the motor will get overloaded and heated up.
• The speed adjusting dial can be turned only as far as 6
and back to 1. Do not force it past 6 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.
Position Cutting action Applications
0 Straight line cutting
action
For cutting mild steel,
stainless steel and
plastics.
For clean cuts in
wood and plywood.
I Small 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 alu-
minum and mild steel
III Large orbit cutting
action
For fast cutting in
wood and plywood.
Number on adjusting dial Strokes per minute
6 2,800
5 2,500
4 1,850
3 1,400
2 1,000
1950
Workpiece to be cut Number on adjusting dial
Wood 6
Autoclaved lightweight
concrete
5 - 6
Mild steel 3 - 4
Aluminum 3 - 5
Plastics 1 - 4
Stainless steel 1 - 2
… 6 …


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