Makita 4320 Manuel D'instructions page 7

Switch action (Fig. 8)
CAUTION:
Before plugging in the tool, always check to see that the
switch trigger actuates properly and returns to the "OFF"
position when released.
For tools with speed control screw
To start the tool, simply pull the trigger. Tool speed is
increased by increasing pressure on the trigger. Release
the trigger to stop. For continuous operation, pull the trig-
ger and then push in the lock button. To stop the tool from
the locked position, pull the trigger fully, then release it. A
speed control screw is provided so that maximum tool
speed can be limited (variable). Turn the speed control
screw clockwise for higher speed, and counterclockwise
for lower speed.
For tools without speed control screw
To start the tool, simply pull the trigger. Tool speed is
increased by increasing pressure on the trigger. Release
the trigger to stop. For continuous operation, pull the trig-
ger and then push in the lock button. To stop the tool from
the locked position, pull the trigger fully, then release it.
Operation (Fig. 9)
Turn the tool on and wait until the blade attains full speed.
Then rest the 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.
CAUTION:
Failure to hold the tool base flush with the workpiece may
cause blade breakage.
Bevel cutting (Fig. 10 & 11)
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 and slide the base slightly backwards. Tilt the
base to the desired angle. The edge of the housing indi-
cates the bevel angle. Then check the contact between
the back edge of the blade and the roller. Now tighten the
bolt securely on the back of the base.
Front flush cuts (Fig. 12)
Loosen the bolt on the back of the base with the hex
wrench, then slide the base backwards. Check the con-
tact between the back edge of the blade and the roller,
then secure the bolt.
Plunge cutting (Fig. 13)
Starting a cut at other than the edge of the workpiece
without first drilling a starting hole requires a "plunge cut".
This can be accomplished by tipping the tool forward until
the front end of the base rests against the workpiece.
Switch the tool on and lower the back end of the tool
slowly, gradually allowing the blade to saw through the
workpiece until the base is able to sit flat on the work-
piece. You may then proceed forward with the cut in a
normal manner.
If using a drill for a starting hole, bore a hole over 12 mm
in diameter. Then insert the blade in it and proceed.
Using guide rule (Rip fence) (Fig. 14 & 15)
When cutting widths of under 150 mm repeatedly, use of
the guide rule will assure fast, clean, straight cuts.
To attach the guide rule (rip fence), secure the rule holder
to the base with the screw (do not tighten). Insert the
guide rule between the base and the rule holder. Now
tighten the screw with the hex wrench.
Using circular guide (Fig. 16 & 17)
Use of the circular guide insures clean, smooth cutting of
circles (radius, under 200 mm) and arcs.
To attach the circular guide, use the pin, inserting it in the
center hole (arrow) and secure it with the threaded knob.
Then slide the base of the tool forwards. The circular
guide attaches to the base of the tool in the same man-
ner as the guide rule (rip fence).
Metal cutting (Fig. 18 & 19)
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.
MAINTENANCE
CAUTION:
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
To maintain product safety and reliability, repairs, mainte-
nance or adjustment should be carried out by a Makita
Authorized Service Center.
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