Milwaukee 2730-20 User manual

M18TM FUEL™ CIRCULAR SAW
SCIE CIRCULAIRE DE M18TM FUEL™
SIERRA CIRCULAR DE M18TM FUEL™
Cat. No.
No de cat.
2730-20
OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
TO REDUCE THE RISK OF INJURY, USER MUST READ AND UNDERSTAND OPERATOR'S
MANUAL.
AFIN DE RÉDUIRE LE RISQUE DE BLESSURES, L'UTILISATEUR DOIT LIRE ET BIEN
COMPRENDRE LE MANUEL DE L'UTILISATEUR.
PARA REDUCIR EL RIESGO DE LESIONES, EL USUARIO DEBE LEER Y ENTENDER EL
MANUAL DEL OPERADOR.

2
GENERAL POWER TOOL SAFETY WARNINGS
WARNING READ ALL SAFETY WARNINGS AND ALL INSTRUCTIONS. Failure to
follow the warnings and instructions may result in electric shock, re and/or serious injury. Save
all warnings and instructions for future reference. The term “power tool” in the warn-
ings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
BATTERY TOOL USE AND CARE
PERSONAL SAFETY
WORK AREA SAFETY
ELECTRICAL SAFETY
• Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
• Do not operate power tools in explosive atmos-
pheres, such as in the presence of ammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
• Keep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
• Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodied plugs and matching outlets will
reduce risk of electric shock.
• Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
• Do not expose power tools to rain or wet condi-
tions. Water entering a power tool will increase
the risk of electric shock.
• Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges
or moving parts. Damaged or entangled cords
increase the risk of electric shock.
• When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use
of a cord suitable for outdoor use reduces the risk
of electric shock.
• If operating a power tool in a damp location is
unavoidable, use a ground fault circuit inter-
rupter (GFCI) protected supply. Use of an GFCI
reduces the risk of electric shock.
attached to a rotating part of the power tool may
result in personal injury.
• Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
• Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewel-
lery or long hair can be caught in moving parts.
• If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used. Use of
dust collection can reduce dust-related hazards.
POWER TOOL USE AND CARE
• Do not force the power tool. Use the correct
power tool for your application. The correct
power tool will do the job better and safer at the
rate for which it was designed.
• Do not use the power tool if the switch does not
turn it on and off. Any power tool that cannot be
controlled with the switch is dangerous and must
be repaired.
• Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such pre-
ventive safety measures reduce the risk of starting
the power tool accidentally.
• Store idle power tools out of the reach of chil-
dren and do not allow persons unfamiliar with
the power tool or these instructions to operate
the power tool. Power tools are dangerous in the
hands of untrained users.
• Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tool’s operation. If damaged, have the
power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
• Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
• Use the power tool, accessories and tool bits
etc. in accordance with these instructions, tak-
ing into account the working conditions and
the work to be performed. Use of the power tool
for operations different from those intended could
result in a hazardous situation.
• Stay alert, watch what you are doing and use
common sense when operating a power tool.
Do not use a power tool while you are tired or
under the inuence of drugs, alcohol or medi-
cation. A moment of inattention while operating
power tools may result in serious personal injury.
• Use personal protective equipment. Always
wear eye protection. Protective equipment such
as dust mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate conditions
will reduce personal injuries.
• Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools with
your nger on the switch or energising power tools
that have the switch on invites accidents.
• Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
• Recharge only with the charger specied by
the manufacturer. A charger that is suitable for
one type of battery pack may create a risk of re
when used with another battery pack.
• Use power tools only with specically desig-
nated battery packs. Use of any other battery
packs may create a risk of injury and re.

3
SERVICE
• When battery pack is not in use, keep it away
from other metal objects like paper clips,
coins, keys, nails, screws, or other small metal
objects that can make a connection from one
terminal to another. Shorting the battery terminals
together may cause burns or a re.
• Under abusive conditions, liquid may be eject-
ed from the battery; avoid contact. If contact
accidentally occurs, ush with water. If liquid
contacts eyes, additionally seek medical help.
Liquid ejected from the battery may cause irritation
or burns.
• Have your power tool serviced by a qualied
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
SPECIFIC SAFETY RULES
Cutting procedures
• DANGER: Keep hands away from cutting
area and the blade. Keep your second hand
on auxiliary handle, or motor housing. If both
hands are holding the saw, they cannot be cut by
the blade.
• Do not reach underneath the workpiece. The
guard cannot protect you from the blade below
the workpiece.
• Adjust the cutting depth to the thickness of
the workpiece. Less than a full tooth of the blade
teeth should be visible below the workpiece.
• Never hold piece being cut in your hands or
across your leg. Secure the workpiece to a
stable platform. It is important to support the work
properly to minimize body exposure, blade binding,
or loss of control.
• Hold the power tool by insulated gripping
surfaces only, when performing an operation
where the cutting tool may contact hidden
wiring. Contact with a “live” wire will also make
exposed metal parts of the power tool “live” and
could give the operator an electric shock.
• When ripping, always use a rip fence or straight
edge guide. This improves the accuracy of cut and
reduces the chance of blade binding.
• Always use blades with correct size and shape
(diamond versus round) of arbour holes. Blades
that do not match the mounting hardware of the
saw will run eccentrically, causing loss of control.
• Never use damaged or incorrect blade washers
or bolt. The blade washers and bolt were specially
designed for your saw, for optimum performance
and safety of operation.
Further safety instructions for all saws
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 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.
Lower guard function
• Check lower guard for proper closing before
each use. Do not operate the saw if lower guard
does not move freely and close instantly. Never
clamp or tie the lower guard into the open
position. If saw is accidentally dropped, lower
guard may be bent. Raise the lower guard with the
retracting handle and make sure it moves freely
and does not touch the blade or any other part, in
all angles and depths of cut.

4
1. Front handle
2. Rafter hook
3. Lock-off button
4. Trigger
5. Handle
6. Lower guard lever
7. Shoe
8. Lower guard
9. Lower guard arrow
10.Blade bolt
11. Blade ange
12.Rip fence slot
13.Sight lines
14.Rip fence adjusting
knob
15.Upper guard
16.Wrench
17.Spindle lock button
18.Bevel adjusting knob
19.Bevel scale
20.Bevel pointer
21.Depth adjusting lever
Cat. No.
Volts
DC
No Load
RPM Blade Size Arbor
Depth of Cut
At 90°
Depth of Cut
at 45°
2730-20 18 5000 6-1/2" (165 mm) 5/8" 0 to 2-3/16" 0 to 1-5/8"
FUNCTIONAL DESCRIPTION
SYMBOLOGY
SPECIFICATIONS
17
16
19
20
18
21
2
1
5
3
6
7
4
12 8
14
9
13
10
11
15
• Check the operation of the lower guard spring.
If the guard and the spring are not operating
properly, they must be serviced before use.
Lower guard may operate sluggishly due to dam-
aged parts, gummy deposits, or a build-up of
debris.
• Lower guard should be retracted manually
only for special cuts such as “plunge cuts”
and “compound cuts.” Raise lower guard by
retracting handle and as soon as blade enters the
material, the lower guard must be released. For
all other sawing, the lower guard should operate
automatically.
• Always observe that the lower guard is cov-
ering the blade before placing saw down on
bench or oor. An unprotected, coasting blade will
cause the saw to walk backwards, cutting whatever
is in its path. Be aware of the time it takes for the
blade to stop after switch is released.
• Maintain labels and nameplates. These carry
important information. If unreadable or missing,
contact a MILWAUKEE service facility for a free
replacement.
• WARNING Some dust created by power sanding,
sawing, grinding, drilling, and other construction
activities contains chemicals known to cause
cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
• lead from lead-based paint
• crystalline silica from bricks and cement and other
masonry products, and
• arsenic and chromium from chemically-treated
lumber.
Your risk from these exposures varies, depending
on how often you do this type of work. To reduce
your exposure to these chemicals: work in a well
ventilated area, and work with approved safety
equipment, such as those dust masks that are spe-
cially designed to lter out microscopic particles.
Volts
Direct Current
No Load Revolutions per Minute
(RPM)
CUS Underwriters Laboratories, Inc.
United States and Canada

5
ASSEMBLY
WARNING Recharge only with the
charger specied for the battery. For specic
charging instructions, read the operator’s
manual supplied with your charger and bat-
tery.
Inserting/Removing the Battery
To remove the battery, push in the release buttons
and pull the battery pack away from the tool.
To insert the battery, slide the pack into the body
of the tool. Make sure it latches securely into place.
Selecting Blade
Always use sharp blades. Dull blades tend to
overload the tool and increase the chance of
KICKBACK (see "Causes and Operator Prevention
of KICKBACK"). Only use thin kerf 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.
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 continue 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.
Bolt
Outer
ange
Inner
ange
Spindle
Fig. 1
4. 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. Release the lower
guard lever.
5. Place the blade ange on the spindle and hand
tighten the bolt.
6. While holding in the spindle lock button, use the
wrench to turn the bolt counterclockwise and
tighten.
Adjusting Depth
1. Remove battery pack.
2. To adjust the depth of the cut, hold the saw by
the handle and loosen the depth adjusting lever
by pushing it up towards the motor housing.
Fig. 2
WARNING Always remove battery
pack before changing or removing acces-
sories. Only use accessories specifically
recommended for this tool. Others may be
hazardous.
3. Raise or lower the shoe to the desired position.
Markings in 1/4" increments are located on the
inner side of the upper guard for depth setting.
For the proper depth setting, the blade should
extend no more than 1/8" to 1/4" below the mate-
rial being cut (Fig. 3).
Installing and Removing Blades
1. Remove battery pack before installing or
removing blades.
2. Place the saw on a at surface with the blade
facing upwards. To remove the bolt from the
spindle, push in the spindle lock button. While
holding in the spindle lock button, use the wrench
provided with the tool to turn the bolt clockwise.
Remove the bolt and blade ange.
3. Slide the lower guard lever up to raise the lower
guard. Remove the blade from the spindle. Al-
ways clean the spindle, upper guard and lower
guard to remove any dirt and sawdust.
NOTE: Do not remove inner blade ange. Larger
diameter of inner ange should face the blade.
1/4" (6 mm)
Fig. 3