Makita 4331D Manual De Instrucciones página 9

Sierra de cacadora a batteria 12 v / 14.4 v
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Cutouts (Fig. 13 & 14)
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
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.
Anti-splintering device (Fig. 16)
To reduce the potential for workpiece surface splin-
tering, 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. 17)
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. 18)
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. 19)
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).
All manuals and user guides at all-guides.com
Dust extraction (Fig. 20, 21 & 22)
The vacuum head is recommended to perform clean
cutting operations. Install the plastic cover on the tool
by fitting 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 vacuum head.
MAINTENANCE
CAUTION:
Always be sure that the tool is switched off and the
battery cartridge is removed before carrying out any
work on the tool.
Replacement of carbon brushes (Fig. 23 & 24)
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,
maintenance or adjustment should be carried out by a
Makita Authorized Service Center.
9
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