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Operation - Makita 3612BR Instruction Manual

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Since excessive cutting may cause overload of the
motor or difficulty in controlling the tool, the depth of
cut should not be more than 15 mm at a pass when
cutting grooves. When you wish to cut grooves
more than 15 mm deep, make several passes with
progressively deeper bit settings.
Do not lower the nylon nut too low, or the bit will
protrude dangerously.
Before operating the tool, check to be sure that the
tool automatically rises to the upper limit.
Switch action
Make sure that the shaft lock is released before the
switch is turned on.
To start the tool, move the switch lever to the I (ON)
position. To stop the tool, move the switch lever to the O
(OFF) position.
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing or removing the bit
Install the bit securely. Always use only the wrench
provided with the tool. A loose or overtightened bit
can be dangerous.
Do not tighten the collet nut without inserting a bit or
install smaller shank bits without using a collet
sleeve. Either can lead to breakage of the collet
1. Switch lever
1. Bit
2. Shaft lock
Insert the bit all the way into the collet cone and withdraw
it very slightly (approx. 2 mm). Press the shaft lock to
keep the shaft stationary and use the wrench to tighten
the collet nut securely. When using router bits with
smaller shank diameter, first insert the appropriate collet
sleeve into the collet cone, then install the bit as
described above.
To remove the bit, follow the installation procedure in


Before operation, always make sure that the tool
body automatically rises to the upper limit and the
bit does not protrude from the tool base when the
lock lever is loosened.
Before operation, always make sure that the chip
deflector is installed properly.
Set the tool base on the workpiece to be cut without the
bit making any contact. Then turn the tool on and wait
until the bit attains full speed. Lower the tool body and
move the tool forward over the workpiece surface,
keeping the tool base flush and advancing smoothly until
the cutting is complete.
When doing edge cutting, the workpiece surface should
be on the left side of the bit in the feed direction.
1. Workpiece
2. Bit revolving direction
3. View from the top of the tool
4. Feed direction
Moving the tool forward too fast may cause a poor
quality of cut, or damage to the bit or motor. Moving
the tool forward too slowly may burn and mar the
cut. The proper feed rate will depend on the bit size,
the kind of workpiece and depth of cut. Before
beginning the cut on the actual workpiece, it is
advisable to make a sample cut on a piece of scrap
lumber. This will show exactly how the cut will look
as well as enable you to check dimensions.
When using the straight guide or the trimmer guide,
be sure to install it on the right side in the feed
direction. This will help to keep it flush with the side
of the workpiece.

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