Makita 4331D Manual De Instrucciones página 8

Cutouts (Fig. 12 & 13)
Cutouts can be made with either of two methods A or B.
A) Boring a starting hole: For internal cutouts without a
lead-in cut from an edge, pre-drill a starting hole
more than 12 mm in diameter. Insert the blade into
this hole to start your cut.
B) Plunge cutting: 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 work-
piece 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 sur-
face.
4. Complete the cut in the normal manner.
Finishing edges (Fig. 14)
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.
Anti-splintering device (Fig. 15)
To reduce the potential for workpiece surface splintering,
the anti-splintering device can be used. Fit it into the
base from below so that it surrounds the sides of the
blade.
Plastic base plate (optional accessory) (Fig. 16)
Use the plastic base plate when cutting decorative
veneers, plastics, etc. It protects sensitive surfaces from
damage. To replace the base plate, remove the four
screws with the hex wrench.
Rip fence (optional accessory) (Fig. 17)
When cutting widths of under 150 mm repeatedly, use of
the rip fence (guide rule) will assure fast, clean, straight
cuts. To install it, loosen the bolt on the front of the base.
Slip in the rip fence and secure the bolt.
Circular guide (optional accessory) (Fig. 18)
Use of the circular guide insures clean, smooth cutting of
circles (radius: under 200 mm). Insert the pin through the
center hole and secure it with the threaded knob. Move
the base of the tool forward fully. Then install the circular
guide on the base in the same manner as the rip fence
(guide rule).
Dust extraction (Fig. 19, 20 & 21)
The vacuum head is recommended to perform clean cut-
ting operations. Install the plastic cover on the tool by fit-
ting it into the notches in the tool.
To attach the vacuum head on the tool, insert the hook of
the vacuum head into the hole in the base. The vacuum
head can be installed on either left or right side of the
base. Then connect a Makita vacuum cleaner to the vac-
uum head.
8
MAINTENANCE
CAUTION:
Always be sure that the tool is switched off and the bat-
tery cartridge is removed before carrying out any work on
the tool.
Replacement of carbon brushes (Fig. 22 & 23)
Replace carbon brushes when they are worn down to the
limit mark. Both identical carbon brushes should be
replaced at the same time.
To maintain product safety and reliability, repairs, mainte-
nance or adjustment should be carried out by a Makita
Authorized Service Center.
ACCESSORIES
CAUTION:
• These accessories or attachments are recommended
for use with your Makita tool specified in this manual.
The use of any other accessories or attachments might
present a risk of injury to persons. Only use accessory
or attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita service center.
• Plastic base plate
• Hex wrench 3
• Circular guide assembly
• Anti-splintering device
• Plastic cover
• Hose 19 – 2.5
• Jig saw blade
• Various type of Makita genuine batteries and chargers
• Rip fence (Guide rule)
• Vacuum head