Operation - Makita 5057KB Instruction Manual

Circular saw with dust collection
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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.
1
2
4
3
001439
After installing the blade, install the dust box and tighten
the clamping screws to secure the dust box.
When changing blade, make sure to also clean upper
and lower blade guards of accumulated sawdust. Such
efforts do not, however, replace the need to check lower
guard operation before each use.

OPERATION

CAUTION:
Be sure to move the tool forward in a straight line
gently. Forcing or twisting the tool will result in
overheating the motor and dangerous kickback,
possibly causing severe injury.
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 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.
1. Saw blade
2. Hex bolt
3. Outer flange
4. Inner flange
8
1
3
001465
Rip fence (Guide rule)
1
001485
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.
Plunge cuts (Pocket cutting)
WARNING:
Never touch the lower guard during operation.
Never wedge or tie the lower guard open. For
example, do not wedge or tie the retracting lever.
Then lower guard must always be kept free and in
no way restricted in its movement. It must
automatically close immediately after the cut is
completed and the tool is raised.
As soon as you start the cut, release the retracting
lever. The lower guard contact with the workpiece
will keep it in position to open freely as you start the
cut.
Lower guard should be retracted manually only for
special cuts such as "Pocket Cuts" and "Compound
Cuts." Raise lower guard by Retracting Lever. As
soon as blade enters the material, retracting lever
must be released. For all other sawing, the lower
guard should operate automatically.
Tilt the tool forward and rest the front of the base on the
workpiece to be cut. Using the right edge of the notch in
the front of the base and the graduation on the right side
of the base, align the blade with the cutting line on the
workpiece. Grasp the tool firmly with the front grip by
your left hand and the rear handle by your right hand.
Switch on the tool and wait until the blade reaches full
speed. Push down the retracting lever with your thumb to
1. Rear handle
2
2. Front grip
3. Base
1. Rip fence
(Guide rule)

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