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Metal Cutting; Bevel Cutting; Dust Extraction - Makita 4340T Instruction Manual

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Turn the tool on and wait until the blade attains full
speed. Then rest the tool base flat on the workpiece and
gently move the tool forward along the previously
marked cutting line. When cutting curves, advance the
tool very slowly.

Bevel cutting

Fig.9
CAUTION:
Always be sure that the tool is switched off and
unplugged before tilting the base.
With the base tilted, you can make bevel cuts at any
angle between 0° and 45° (left or right).
Loosen the bolt on the back of the base with the hex
wrench. Move the base so that the bolt is positioned in
the center of the bevel slot in the base.
Fig.10
Tilt the base until the desired bevel angle is obtained.
The V-notch of the gear housing indicates the bevel
angle by graduations. Then tighten the bolt firmly to
secure the base.
Fig.11
Front flush cuts
Fig.12
Loosen the bolt on the back of the base with the hex
wrench and slide the base all the way back. Then tighten
the bolt to secure the base.
Cutouts
Cutouts can be made with either of two methods A or B.
A) Boring a starting hole:
Fig.13
For internal cutouts without a lead-in cut from an
edge, pre-drill a starting hole 12 mm or more in
diameter. Insert the blade into this hole to start your
cut.
B) Plunge cutting:
Fig.14
You need not bore a starting hole or make a lead-in
cut if you carefully do as follows.
(1)
Tilt the tool up on the front edge of the base
with the blade point positioned just above the
workpiece surface.
(2)
Apply pressure to the tool so that the front
edge of the base will not move when you
switch on the tool and gently lower the back
end of the tool slowly.
(3)
As the blade pierces the workpiece, slowly
lower the base of the tool down onto the
workpiece surface.
(4)
Complete the cut in the normal manner.
Finishing edges
Fig.15
To trim edges or make dimensional adjustments, run the
blade lightly along the cut edges.

Metal cutting

Always use a suitable coolant (cutting oil) when cutting
metal. Failure to do so will cause significant blade wear.
The underside of the workpiece can be greased instead
of using a coolant.

Dust extraction

Fig.16
Fig.17
The dust nozzle (accessory) is recommended to perform
clean cutting operations.
To attach the dust nozzle on the tool, insert the hook of
dust nozzle into the hole in the base.
The dust nozzle can be installed on either left or right
side of the base.
Then connect a Makita vacuum cleaner to the dust
nozzle.
Fig.18
CAUTION:
If you try to remove the dust nozzle forcibly, the
hook of the dust nozzle can be diminished and
removed unintentionally during operation.
Rip fence set (optional accessory)
CAUTION:
Always be sure that the tool is switched off and
unplugged
before
accessories.
1.
Straight cuts
Fig.19
Fig.20
When repeatedly cutting widths of 160 mm or less, use
of the rip fence will assure fast, clean, straight cuts. To
install, insert the rip fence into the rectangular hole on
the side of the tool base with the fence guide facing
down. Slide the rip fence to the desired cutting width
position, then tighten the bolt to secure it.
2.
Circular cuts
Fig.21
Fig.22
When cutting circles or arcs of 170 mm or less in
radius, install the rip fence as follows.
Insert the rip fence into the rectangular hole on the
side of the base with the fence guide facing up.
Insert the circular guide pin through either of the
two holes on the fence guide. Screw the threaded
knob onto the pin to secure the pin.
Now slide the rip fence to the desired cutting radius,
and tighten the bolt to secure it in place. Then
move the base all the way forward.
NOTE:
Always use blades No. B-17, B-18, B-26 or B-27
when cutting circles or arcs.
7
installing
or
removing

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