Makita 4105KB Manuel D'instructions page 6

Adjusting the depth of cut (Fig. 1)
Loosen the wing nut on the depth guide and move the
base up or down. At the desired depth of cut, secure the
base by tightening the wing nut.
CAUTION:
• After adjusting the depth of cut, always tighten the wing
nut securely.
Sighting (Fig. 2)
Align the notch in the front of the base with your cutting
line on the workpiece.
Switch action (Fig. 3 & 4)
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 tool with lock-off button
To prevent the switch trigger from being accidentally
pulled, a lock-off button is provided.
To start the tool, depress the lock-off button and pull the
switch trigger. Release the switch trigger to stop.
CAUTION:
• Do not pull the switch trigger hard without pressing in
the lock-off button. This can cause switch breakage.
For tool without lock-off button
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
Overload protector (Fig. 5)
The overload protector automatically cuts out to break
the circuit and the button pops out, whenever heavy work
is prolonged. Wait 20 – 30 seconds before pressing the
restart button to resume operation. Your finger should not
be on the switch trigger when you press the restart but-
ton, however.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing or removing diamond wheel
(Fig. 6, 7 & 8)
Loosen the thumb nut, lower the base and tighten the
thumb nut in that position. Fit the socket wrench onto the
hex bolt and turn the diamond wheel until two flatted par-
allel surfaces of the outer flange reach the direction in
which the wrench can be inserted.
To install the wheel, follow the removal procedure in
reverse. Always install the wheel so that the arrow on the
wheel points in the same direction as the arrow on the
blade case.
BE SURE TO TIGHTEN THE HEX BOLT SECURELY.
CAUTION:
• Use only the Makita wrench to install or remove the
wheel.
Dust bag (Fig. 9)
The use of the dust bag makes cutting operations clean
and dust collection easy. To attach the dust bag, fit it onto
the dust spout. When the dust bag is about one-third full,
remove the dust bag from the tool and pull the fastener
out. Empty the dust bag of its contents, tapping it lightly
so as to remove particles adhering to the insides which
might hamper collection.
6
OPERATION
CAUTION:
• Be sure to move the tool forward in a straight line and
gently. Forcing and exerting excessive pressure or
allowing the wheel to bend, pinch or twist in the cut can
cause overheating of the motor and dangerous kick-
back of the tool.
Hold the tool firmly. Set the base plate on the workpiece
to be cut without the wheel making any contact. Then
turn the tool on and wait until the wheel attains full speed.
Move the tool forward over the workpiece surface, keep-
ing it flat and advancing smoothly until the cutting is com-
pleted. Keep your cutting line straight and your speed of
advance uniform. (Fig. 10)
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.
Dressing diamond wheel
If the cutting action of the diamond wheel begins to
diminish, use an old discarded coarse grit bench grinder
wheel or concrete block to dress the diamond wheel. To
do this, tightly secure the bench grinder wheel or con-
crete block and cut in it.
After use
Blow away dust from the inside of the tool by running the
tool at an idle for a while. Brush off accumulation of dust
on the base. Accumulation of dust in the motor or on the
base may cause a malfunction of the tool.
Replacing carbon brushes (Fig. 11 & 12)
Remove and check the carbon brushes regularly.
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
time. Use only identical carbon brushes.
Use a screwdriver to remove the brush holder caps. Take
out the worn carbon brushes, insert the new ones and
secure the brush holder caps.
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.