Operation; Maintenance - Makita 4100KB Instruction Manual

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,
press the lock-off button and pull the switch trigger.
Release the switch trigger to stop.
WARNING:
NEVER use the tool if it runs when
you simply pull the switch trigger without press-
ing the lock-off button. A switch in need of repair
may result in unintentional operation and serious
personal injury. Return tool to a Makita service center
for proper repairs BEFORE further usage.
WARNING:
NEVER defeat the lock-off button
by taping down or some other means. A switch with
a negated lock-off button may result in unintentional
operation and serious personal injury.
CAUTION:
Do not pull the switch trigger hard
without pressing in the lock-off button. This can
cause switch breakage.
ASSEMBLY
CAUTION:
Always be sure that the tool is
switched off and unplugged before carrying out
any work on the tool.
Hex wrench storage
When not in use, store the hex wrench as shown in the
figure to keep it from being lost.
► Fig.4: 1. Hex wrench
Removing or installing diamond
wheel
CAUTION:
BE SURE TO TIGHTEN THE HEX
BOLT SECURELY. Also be careful not to tighten
the bolt forcibly. Slipping your hand from the hex
wrench can cause a personal injury.
CAUTION:
Use only the Makita wrench and
hex wrench to install or remove the wheel.
Hold the outer flange with the wrench and loosen the
hex bolt with the hex wrench. Then remove the hex bolt,
outer flange and diamond wheel.
► Fig.5: 1. Hex wrench 2. Hex bolt 3. Wrench 22
4. Loosen 5. Tighten
To install the diamond wheel, follow the removal pro-
cedure in reverse. Always install the wheel so that the
arrow on the diamond wheel points in the same direc-
tion as the arrow on the gear housing.
► Fig.6: 1. Hex bolt 2. Outer flange 3. Diamond wheel
4. Inner flange 5. Cup washer
Dust bag
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.
► Fig.7: 1. Dust bag 2. Dust spout
The neck of the dust spout rotates freely. Position the
dust bag so that you can operate the tool comfortably.
► Fig.8
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.
► Fig.9: 1. Fastener
Connecting the vacuum cleaner
When you wish to perform clean cutting operation,
connect a Makita vacuum cleaner to your tool.
► Fig.10: 1. Hose of the vacuum cleaner 2. Dust
spout

OPERATION

CAUTION:
THIS TOOL SHOULD ONLY BE
USED ON HORIZONTAL SURFACES.
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.
Hold the tool firmly. Set the base plate on the workpiece
to be cut without the diamond wheel making any con-
tact. Then turn the tool on and wait until the diamond
wheel attains full speed. 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.
► Fig.11

MAINTENANCE

CAUTION:
Always be sure that the tool is
switched off and unplugged before attempting to
perform inspection or maintenance.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
9 ENGLISH