Operation; Maintenance - Makita N5900B Instruction Manual

Bevel cutting (Fig. 2)
Loosen the clamping screws in front and back, and tilt the
tool to the desired angle for bevel cuts (0° – 50°). Secure
the clamping screws tightly in front and back after making
the adjustment.
Sighting (Fig. 3)
For straight cuts, align the A position on the front of the
base with your cutting line. For 45° bevel cuts, align the B
position with it.
Switch action (Fig. 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 button
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
For continuous operation, pull the switch trigger and then
push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
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,
push in the lock-off button and pull the switch trigger.
Release the switch trigger to stop.
For tool without lock button and lock-off button
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Removing or installing saw blade (Fig. 5 & 6)
CAUTION:
• Be sure the blade is installed with teeth pointing up at
the front of the tool.
• Use only the Makita wrench to install or remove the
blade.
To remove the blade, press the shaft lock so that the
blade cannot revolve and use the wrench to loosen the
hex bolt counterclockwise. Then remove the hex bolt,
outer flange and blade.
To install the blade, follow the removal procedure in
reverse. BE SURE TO TIGHTEN THE HEX BOLT
CLOCKWISE SECURELY.
The following blade can be used with the tool.
Max. dia.
235 mm
Side grip (auxiliary handle) (Fig. 7)
Install the side grip on the tool securely before operation.
Joint set (Accessory) (Fig. 8 & 9)
Attach the joint to the chip chute in the blade case and
secure it with the screws.
Remove the lever attached to the main unit and attach
lever of joint set.

OPERATION

• Be sure to move the tool forward in a straight line
Hold the tool firmly. The tool is provided with both a front
grip and rear handle. Use both to best grasp the tool. If
both hands are holding saw, they cannot be cut by the
blade. Set the base on the workpiece to be cut without
the blade making any contact. Then turn the tool on and
wait until the blade attains full speed. Now simply move
the tool forward over the workpiece surface, keeping it
flat and advancing smoothly until the sawing is
completed. To get clean cuts, keep your sawing line
straight and your speed of advance uniform. If the cut
fails to properly follow your intended cut line, do not
attempt to turn or force the tool back to the cut line. Doing
so may bind the blade and lead to dangerous kickback
and possible serious injury. Release switch, wait for blade
to stop and then withdraw tool. Realign tool on a new cut
line, and start cut again. Attempt to avoid positioning
which exposes operator to chips and wood dust being
ejected from saw. Use eye protection to help avoid injury.
(Fig. 10)
Rip fence (Guide rule) (Fig. 11)
The handy rip fence allows you to do extra-accurate
straight cuts. Simply slide the rip fence up snugly against
the side of the workpiece and secure it in position with
the screw on the front of the base. It also makes repeated
cuts of uniform width possible.

MAINTENANCE

• Always be sure that the tool is switched off and
• Never use gasoline, benzine, thinner, alcohol or the
Replacing carbon brushes (Fig. 12 & 13)
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
performed by Makita Authorized Service Centers, always
Min. dia.
using Makita replacement parts.
230 mm
CAUTION:
gently. Forcing or twisting the tool will result in
overheating the motor and dangerous kickback,
possibly causing severe injury.
CAUTION:
unplugged before attempting to perform inspection or
maintenance.
like. Discoloration, deformation or cracks may result.
7