Milwaukee Tool 6370-21 V.1 - Manual (Page 5)

6 7
ASSEMBLY
WARNING To reduce the risk of injury,
always unplug tool before changing or re-
moving accessories. Only use accessories
specifi cally recommended for this tool. Others
may be hazardous.
Selecting Blade
Select an 8" blade appropriate for your applica-
tion. Refer to the “Accessories” section for a list of
blades for this tool.
Always use sharp blades. Dull blades tend to
overload the tool and increase the chance of
KICKBACK. Only use blades with a maximum safe
operating speed greater than the no load RPM
marked on the tool's nameplate. Read the blade
manufacturer's instructions before use. Do not use
any type of abrasive cut-off wheel or dry diamond
cutting blades. Use the correct blade type for your
application. Using the wrong blade may result in
reduced performance or damage to the blade. Do
not use blades that are cracked or have broken
teeth. Do not sharpen ferrous metal cutting blades;
see the blade manufacturer's recommendations
regarding sharpening.
Checking the Operation of the Lower Guard
Check the operation and condition of the lower
guard lever. If the guard and the lever are not op-
erating properly, they must be serviced before use.
Lower guard may operate sluggishly due to dam-
aged parts, gummy deposits, or a buildup of debris.
1. Unplug tool before checking the lower guard.
2. Place the tool on its side.
NOTE: This procedure will not show proper lower
guard operation if the tool is not on its side.
3. Grasp the lower guard by the sides and push it
all the way back into the blade housing.
4. Release the lower guard.
• If the guard immediately springs back into
place, it is working correctly and you may con-
tinue with use.
• If the guard does not immediate spring back
into place, clean the upper and lower guards
to remove all chips and debris. Then, check
the operation again by starting with step 1.
• If the guard still does not immediately spring
back into place, contact a MILWAUKEE service
facility for repairs.
Removing and Installing Chip Container
WARNING
• NEVER operate tool when guards and chip
container are not installed. Serious injury
may occur.
• To reduce the risk of injury, wear safety
goggles or glasses with side shields when
removing the chip container. Chips and
debris may fl y up into the face.
1. Unplug tool before removing or installing chip
container.
2. To remove the chip container, open the latch
and pull the chip container off of the tab.
Installing and Removing Blades
1. Unplug tool before installing or removing blades.
2. Remove the chip container (see "Removing and
Installing Chip Container").
3. Place the saw on a fl at surface with the blade
facing up. To remove the blade bolt from the
spindle, push in the spindle lock button and hold.
Using the wrench provided with the tool, turn the
blade bolt counterclockwise. Remove the blade
bolt and outer blade fl ange. Do not remove the
inner blade fl ange.
4. Remove the blade from the spindle. Always clean
the spindle, upper guard, lower guard, and blade
fl anges to remove any chips and debris.
5. To install a blade, place the
blade on the spindle with the
teeth pointing in the same
direction as the arrow on the
lower guard.
6. Place the blade fl ange on the spindle and hand
tighten the blade bolt.
7. While holding in the spindle lock button, use
the wrench to turn the blade bolt clockwise and
tighten securely.
8. Replace the chip container (see "Removing and
Installing Chip Container").
Adjusting Depth
1. Unplug tool before adjusting blade depth.
2. To adjust the depth of the cut, hold the saw by
the handle and loosen the depth adjusting lever
by pulling it up, away from the shoe.
3. Raise or lower the shoe to the desired position.
For the proper depth setting, the blade should
extend no more than 1/4” below the material
being cut.
4. Push the depth adjusting lever down to secure
the shoe position.
Emptying the Chip Container
Chips and other debris from the workpiece are
collected inside the chip container, which needs to
be emptied to ensure proper functioning of the tool.
1. Unplug tool.
2. Remove the chip container (see "Removing and
Installing Chip Container") and empty. Use a
brush to ensure all chips and debris have been
removed.
3. Remove all chips and debris from upper guard,
blade, and housing.
4. Replace the chip container (see "Removing and
Installing Chip Container").
1/4"
Fig.1
OPERATION
General Operation
Always clamp the workpiece securely on a saw
horse or bench. See “Applications” for the correct
way to support your work in different situations.
1. Draw a cutting line. Place the front of the shoe on
the edge of the workpiece without making blade
contact. Hold the trigger handle with one hand
and the front handle with the other.
WARNING To reduce the risk of injury,
everyone in the work area should wear safety
goggles or glasses with side shields. Unplug
the tool before changing accessories or mak-
ing adjustments.
2. Line up the sight line with your cutting line. Posi-
tion your arms and body to resist KICKBACK.
3. Pull the trigger and allow the motor to reach full
speed before beginning cut.
4. While cutting, keep the shoe fl at against the
workpiece and maintain a fi rm grip. Do not force
the saw through the workpiece. Forcing a saw
can cause KICKBACK. Use a light, continuous
pressure to make the cut while following the cut
line through the sight line.
5. If making a partial cut, restarting in mid-cut or
correcting direction, allow the blade to come to
a complete stop. To resume cutting, center the
blade in the kerf, back the saw away from cutting
edge a few inches, pull the trigger and re-enter
the cut slowly.
6. If the saw binds and stalls, maintain a fi rm grip
and release the trigger immediately. Hold the
saw motionless in the workpiece until the blade
comes to a complete stop.
7. After fi nishing a cut, be sure the lower guard
closes and the blade comes to a complete stop
before setting the saw down.
Fig.2
Fig.3
Kickback causes and related warnings
– Kickback is a sudden reaction to a pinched,
bound or misaligned saw blade, causing an un-
controlled saw to lift up and out of the workpiece
toward the operator;
– When the blade is pinched or bound tightly by the
kerf closing down, the blade stalls and the motor
reaction drives the unit rapidly back toward the
operator;
– If the blade becomes twisted or misaligned in
the cut, the teeth at the back edge of the blade
can dig into the top surface of the wood causing
the blade to climb out of the kerf and jump back
toward the operator.
Kickback is the result of saw misuse and/or incor-
rect operating procedures or conditions and can
be avoided by taking proper precautions as given
below:
• Maintain a fi rm grip with both hands on the
saw and position your arms to resist kickback
forces. Position your body to either side of the
blade, but not in line with the blade. Kickback
could cause the saw to jump backwards, but kick-
back forces can be controlled by the operator, if
proper precautions are taken.
• When blade is binding, or when interrupting
a cut for any reason, release the trigger and
hold the saw motionless in the material until
the blade comes to a complete stop. Never at-
tempt to remove the saw from the work or pull
the saw backward while the blade is in motion
or kickback may occur. Investigate and take
corrective actions to eliminate the cause of blade
binding.
• When restarting a saw in the workpiece, centre
the saw blade in the kerf and check that saw
teeth are not engaged into the material. If saw
blade is binding, it may walk up or kickback from
the workpiece as the saw is restarted.
• Support large panels to minimise the risk of
blade pinching and kickback. Large panels tend
to sag under their own weight. Supports must be
placed under the panel on both sides, near the line
of cut and near the edge of the panel.
• Do not use dull or damaged blades. Unsharp-
ened or improperly set blades produce narrow
kerf causing excessive friction, blade binding and
kickback.
• Blade depth and bevel adjusting locking levers
must be tight and secure before making cut. If
blade adjustment shifts while cutting, it may cause
binding and kickback.
• Use extra caution when sawing into existing
walls or other blind areas. The protruding blade
may cut objects that can cause kickback.
3. To install the chip container, fi t the tab pin onto the
tab, position the chip container, and secure the latch.