Maintenance; Operation - Makita 4100NH Instruction Manual

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.
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
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Hold the outer flange with the wrench and loosen the hex
bolt clockwise with the socket wrench. Then remove the
hex bolt, outer flange and diamond wheel.
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.
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CAUTION:
Use only the Makita wrench to install or remove the
•
wheel.

OPERATION

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1. Wrench
2. Socket wrench
3. Outer flange
4. Diamond wheel
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3
1. Inner flange
2. Diamond wheel
3. Outer flange
4. Hex bolt
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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,
keeping it flat and advancing smoothly until the cutting is
completed. Keep your cutting line straight and your
speed of advance uniform.
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 kickback of the tool.

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.
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
001145
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.
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1. Limit mark
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