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Functional Description; Operation; Maintenance - Makita 4100nh3 Instruction Manual

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19. Some material contains chemicals which may be
toxic. Take caution to prevent dust inhalation and
skin contact. Follow material supplier safety data.
20. Store wheels as per manufacturer
recommendations. Improper storage may damage
the wheels.
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product (gained
from repeated use) replace strict adherence to safety
rules for the subject product. MISUSE or failure to
follow the safety rules stated in this instruction
manual may cause serious personal injury.

FUNCTIONAL DESCRIPTION

CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
Adjusting the depth of cut (Fig. 1)
Loosen the wing bolt on the depth guide and move the
base up or down. At the desired depth of cut, secure the
base by tightening the wing bolt.
CAUTION:
• After adjusting depth of cut, always tighten the wing
bolt securely.
Sighting (Fig. 2)
Align the edge of the front of the base with your cutting
line on the workpiece.
Switch action (Fig. 3)
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, push in the lock button and then release the
switch trigger. To stop the tool from the locked position,
pull the 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, 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 button/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 diamond wheel
(optional accessory)
CAUTION:
• Always be sure that the tool is switched off and
unplugged before installing or removing the diamond
wheel.
• Use only the Makita wrench to install or remove the
diamond wheel.
To remove the diamond wheel, hold the outer flange with
the wrench and loosen the hex bolt clockwise with the hex
wrench. Then remove the hex bolt, outer flange and
diamond wheel. (Fig. 4)
To install the diamond wheel, follow the removal
procedure in reverse. Always install the diamond wheel so
that the arrow on the diamond wheel points in the same
direction as the arrow on the blade case. BE SURE TO
TIGHTEN THE HEX BOLT COUNTERCLOCKWISE
SECURELY. (Fig. 5)
Hex wrench storage (Fig. 6)
When not in use, store the hex wrench as shown in the
figure to keep it from being lost.
Water flow (Optional accessory) (Fig. 7)
First, unplug the tool. Loosen the wing bolt on the depth
guide and move the base down. Install the water pipe on
the blade case and secure it by the screw.
Attach the vinyl tube onto the water pipe and attach the
adapter on the vinyl tube to a faucet of water mains
pressure. Adjust the amount of water flow by simply
adjusting the water cock.

OPERATION

CAUTION:
• THIS TOOL SHOULD ONLY BE USED ON
HORIZONTAL SURFACES.
• Be sure to move the tool forward in a straight line and
gently. Forcing and exerting excessive pressure or
allowing the diamond wheel to bend, pinch or twist in
the cut can cause overheating of the motor and
dangerous kickback of the tool.
Hold the tool firmly. Set the base plate on the workpiece to
be cut without the diamond wheel making any contact.
Then turn the tool on and wait until the diamond wheel
attains full speed. (Fig. 8)
Now simply 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.

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
7

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