Makita JV143D Instruction Manual page 11

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: 1. Dust cover 2. Hose
Clean cutting operations can be performed by connect-
ing this tool to a Makita vacuum cleaner. Insert the hose
of the vacuum cleaner into the hole at the rear of the
tool. Lower the dust cover before operation.
NOTE:
• Dust extraction cannot be performed when
making bevel cuts.
Rip fence (optional accessory)
CAUTION:
• Always be sure that the tool is switched off and
the battery cartridge is removed before installing
or removing accessories.
1. Straight cuts
► Fig.17: 1. Rip fence (Guide rule)
When repeatedly cutting widths of 160 mm or less,
use of the rip fence will assure fast, clean, straight
cuts.
► Fig.18: 1. Bolt 2. Fence guide 3. Hex wrench 4. Rip
fence (Guide rule)
To install, insert the rip fence into the rectangular
hole on the side of the 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
When cutting circles or arcs of 170 mm or less in
radius, install the rip fence as follows.
► Fig.19: 1. Fence guide 2. Rip fence 3. Threaded
knob 4. Pin
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.
► Fig.20: 1. Rip fence
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.
Anti-splintering device (optional
accessory)
► Fig.21: 1. Aluminum base 2. Anti-splintering device
For splinter-free cuts, the anti-splintering device can
be used. To install the anti-splintering device, move the
tool base all the way forward and fit it from the back
of tool base. When you use the cover plate, install the
anti-splintering device onto the cover plate.
CAUTION:
• The anti-splintering device cannot be used when
making bevel cuts.
Cover plate (Optional accessory)
► Fig.22: 1. Cover plate 2. Aluminum base
Use the cover plate when cutting decorative veneers,
plastics, etc. It protects sensitive or delicate surfaces
from damage. Fit it on the back of the tool base.
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
the battery cartridge is removed before attempt-
ing to perform inspection or maintenance.
• Never use gasoline, benzine, thinner, alcohol
or the like. Discoloration, deformation or cracks
may result.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be per-
formed by Makita Authorized Service Centers, always
using Makita replacement parts.
11 ENGLISH