Makita BSS730 User Manual

Cordless Circular Saw

Equipped with Electric Blade Brake
185 mm (7-1/4”)
MODEL BSS730

INSTRUCTION MANUAL

WARNING:

For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

001324

SPECIFICATIONS

MODEL BSS730

Blade diameter 185 mm (7-1/4”)

at 90° 64 mm (2-1/2”)

Max. Cutting depth

No load speed (RPM) 2,400/min.

Overall length 375 mm (14-3/4”)

Net weight 4.0 kg (8.8 lbs)

Battery Charger DC24SA

Input A. C. only 50 Hz - 60 Hz

Output D. C. 7.2 V - 12 V

Battery Cartridge B2417 B2430

Voltage 24 V

Charging time 30 min. 60 min.

• Manufacturer reserves the right to change specifications without notice.

• Specifications may differ from country to country.

at 45° 45 mm (1-3/4”)

at 50° 41 mm (1-5/8”)

GENERAL SAFETY RULES

USA003-1

(FOR All BATTERY OPERATED TOOLS)

WARNING:

Read and understand all instructions. Failure to follow all

instructions listed below, may result in electric shock, fire and/or
serious personal injury.

SAVE THESE INSTRUCTIONS

1.

Work A re a

2

Keep your work area clean and well lit.

Cluttered benches and dark areas invite acci­dents.

2.

Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases, or dust. Powe r

tools create sparks which may ignite the dust
or fumes.

3.

Keep bystanders, children, and visitors
away while operating a power tool. Distrac-

tions can cause you to lose control.

Electrical Safety

4.

A battery operated tool with integral bat­teries or a separate battery pack must be
recharged only with the specified charger
for the battery. A charger that may be suit-

able for one type of battery may create a risk
of fire when used with another battery.

5.

Use battery operated tool only with specif­ically designated battery pack. Use of any

other batteries may create a risk of fire.

Personal Safety

6.

Stay alert, watch what you are doing, and
use common sense when operating a
power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or
medication. A moment of inattention while

operating power tools may result in serious
personal injury.

7.

Dress properly. Do not wear loose cloth­ing or jewelry. Contain long hair. Keep
your hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or long

hair can be caught in moving parts.

8.

Avoid accidental starting. Be sure switch
is in the locked or off position before
inserting battery pack. Carrying tools with

your finger on the switch or inserting the bat­tery pack into a tool with the switch on invites
accidents.

9.

Remove adjusting keys or wrenches
before turning the tool on. A wrench or a

key that is left attached to a rotating part of
the tool may result in personal injury.

10.

Do not overreach. Keep proper footing
and balance at all times. Proper footing and

balance enable better control of the tool in
unexpected situations.

11.

Use safety equipment. Always wear eye
protection. Dust mask, non-skid safety

shoes, hard hat, or hearing protection must
be used for appropriate conditions.

Tool Use and Care

12.

Use clamps or other practical way to
secure and support the workpiece to a
stable platform. Holding the work by hand or

against your body is unstable and may lead
to loss of control.

13.

Do not force tool. Use the correct tool for
your application. The correct tool will do the

job better and safer at the rate for which it is
designed.

14.

Do not use tool if switch does not turn it
on or off. A tool that cannot be controlled

with the switch is dangerous and must be
repaired.

15.

Disconnect battery pack from tool or
place the switch in the locked or off posi­tion before making any adjustments,
changing accessories, or storing the tool.

Such preventive safety measures reduce the
risk of starting the tool accidentally.

16.

Store idle tools out of reach of children
and other untrained persons. Tools are

dangerous in the hands of untrained users.

17.

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 sparks, burns, or a fire.

18.

Maintain tools with care. Keep cutting
tools sharp and clean. Properly maintained

tools with sharp cutting edge are less likely to
bind and are easier to control.

19.

Check for misalignment or binding of
moving parts, breakage of parts, and any
other condition that may affect the tool’s

3

operation. If damaged, have the tool ser­viced before using. Many accidents are

caused by poorly maintained tools.

20.

Use only accessories that are recom­mended by the manufacturer for your
model. Accessories that may be suitable for

one tool may create a risk of injury when
used on another tool.

SERVICE

21.

Tool service must be performed only by
qualified repair personnel. Service or main-

tenance performed by unqualified personnel
may result in a risk of injury.

22.

When servicing a tool, use only identical
replacement parts. Follow instructions in
the Maintenance section of this manual.

Use of unauthorized parts or failure to follow
Maintenance instructions may create a risk of
shock or injury.

SPECIFIC SAFETY RULES

USB027-5

DO NOT let comfort or familiarity with product (gained from
repeated use) replace strict adherence to circular saw safety
rules. If you use this tool unsafely or incorrectly, you can suffer
serious personal injury.

1.

DANGER! Keep hands away from cutting
area and 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.

Keep your body positioned to either side
of the saw blade, but not in line with the
saw blade. KICKBACK could cause the saw

to jump backwards. (See “Causes and Oper­ator Prevention of Kickback”)
Do not reach underneath the work. The
guard can not protect you from the blade
below the work. Do not attempt to remove cut
material when blade is moving.
CAUTION: Blades coast after turn off. Wait
until blade stops before grasping cut material.

2.

Check lower guard for proper closing
before each use. Do not operate 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 Retract-

ing Lever and make sure it moves freely and
does not touch the blade or any other part, in
all angles and depths of cut.
To check lower guard, open lower guard by
hand, then release and watch guard closure.
Also check to see that Retracting Lever does
not touch tool housing. Leaving blade
exposed is VERY DANGEROUS and can
lead to serious personal injury.

3.

Check the operation and condition 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 damaged
parts, gummy deposits, or a buildup of debris.

4.

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, lower guard
must be released. For all other sawing, the

lower guard should operate automatically.

4

5.

Always observe that the lower guard is
covering the blade before placing saw
down on bench or floor. 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.

6.

NEVER hold piece being cut in your hands
or across your leg. It is important to support

the work properly to minimize body exposure,
blade binding, or loss of control.

7.

Hold tool by insulated gripping surfaces
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 tool “live” and
shock the operator.

8.

When ripping always use a rip fence or
straight edge guide. This improves the

accuracy of cut and reduces the chance for
blade binding.

9.

Always use blades with correct size and
shape (diamond vs. round) arbor holes.

Blades that do not match the mounting hard­ware of the saw will run eccentrically, causing
loss of control.

10.

Never use damaged or incorrect blade
washers or bolts. The blade washers and

bolt were specially designed for your saw, for
optimum performance and safety of opera­tion.

11.

Causes and Operator Prevention of Kick­back:

Kickback is a sudden reaction to a pinched,
bound, or misaligned saw blade, causing an
uncontrolled 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 tool misuse and/or
incorrect operating procedures or conditions
and can be avoided by taking proper precau­tions as given below:

Maintain a firm grip on the saw and posi­tion your body and arm in a way that
allows you to resist KICKBACK forces.

KICKBACK 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 attempt 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,
center the saw blade in the kerf and check
that 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 minimize 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 as shown in Fig. 1.
To minimize the risk of blade pinching and
kickback. When cutting operation requires
the resting of the saw on the workpiece, the
saw shall be rested on the larger portion and
the smaller piece cut off.

Fig. 1

5

Fig. 2

Do not use dull or damaged blade.

Unsharpened or improperly set blades pro­duce narrow kerf causing excessive friction,
blade binding and KICKBACK. Keep blade
sharp and clean. Gum and wood pitch hard­ened on blades slows saw and increases
potential for kickback. Keep blade clean by
first removing it from tool, then cleaning it
with gum and pitch remover, hot water or ker­osene. Never use gasoline.

Blade depth and bevel adjusting locking
levers must be tight and secure before
making cut. If blade adjustment shifts while

cutting, it will cause binding and KICKBACK.

Use extra caution when making a “Pocket
Cut” into existing walls or other blind
areas. The protruding blade may cut objects

that can cause KICKBACK. For pocket cuts,
retract lower guard using Retracting Lever.

ALWAYS hold the tool firmly with both
hands. NEVER place your hand or fingers
behind the saw. If kickback occurs, the saw

could easily jump backwards over your hand,
leading to serious personal injury.

Fig. 3

Never force the saw. Forcing the saw can
cause uneven cuts, loss of accuracy, and
possible kickback.

Push the saw forward at a speed so that the
blade cuts without slowing.

12.

Be aware that this tool is always in an
operating condition, because it does not
have to be plugged into an electrical out­let.

13.

Use extra caution when cutting damp
wood, pressure treated lumber, or wood
containing knots. Adjust speed of cut to

maintain smooth advancement of tool without
decrease in blade speed.

14.

Adjustments. Before cutting be sure
depth and bevel adjustments are tight.

15.

Avoid Cutting Nails. Inspect for and
remove all nails from lumber before cut­ting.

16.

The tool is provided with a front grip and
rear handle for two hand operation. Oper­ate with proper hand support and proper
workpiece support.
WARNING: It is important to support the
workpiece properly and to hold the saw
firmly to prevent loss of control which
could cause personal injury. Fig. 4 illus­trates typical hand support of the saw.

Fig. 4

17.

Place the wider portion of the saw base on
that part of the workpiece which is solidly
supported, not on the section that will fall
off when the cut is made. As examples,
Fig. 5 illustrates the RIGHT way to cut off
the end of a board, and Fig. 6 the WRONG
way. If the workpiece is short or small,

6

clamp it down. DO NOT TRY TO HOLD
SHORT PIECES BY HAND!

extremely dangerous and can lead to seri­ous accidents.

Fig. 5

Fig. 6

18.

Never attempt to saw with the circular saw
held upside down in a vise. This is

19.

WARNING: Blade coasts to stop after
switch is released. Contact with coasting
blade can cause serious injury. Before
setting the tool down after completing a
cut, be sure that the lower (telescoping)
guard has closed and the blade has come
to a complete stop.

20.

Some material contains chemicals which
may be toxic. Take caution to prevent dust
inhalation and skin contact. Follow mate­rial supplier safety data.

Fig. 7

SAVE THESE INSTRUCTIONS

WARNING:

MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.

SYMBOLS

USD301-1

The followings show the symbols used for tool.

V .......................volts

................... direct current

....................no load speed

n

˚

.../min................revolutions or reciprocation per

minute

7

IMPORTANT SAFETY INSTRUCTIONS FOR
CHARGER & BATTERY CARTRIDGE

1.

SAVE THESE INSTRUCTIONS- This man­ual contains important safety and operat­ing instructions for battery charger.

2.

Before using battery charger, read all
instructions and cautionary markings on
(1) battery charger, (2) battery, and (3)
product using battery.

3.

CAUTION - To reduce risk of injury, charge
only MAKITA rechargeable batteries
marked on the charger label. Other types
of batteries may burst causing personal
injury and damage.

4.

Do not expose charger to rain or snow.

5.

Use of an attachment not recommended
or sold by the battery charger manufac­turer may result in a risk of fire, electric
shock, or injury to persons.

Table 1: RECOMMENDED MINIMUM AWG SIZE FOR EXTENSION CORDS FOR BATTERY CHARGERS

Length of Cord (Feet) 25 50 100 150

AWG Size of Cord 18 18 18 16

9.

Do not operate charger with damaged
cord or plug - replace them immediately.

10.

Do not operate charger if it has received a
sharp blow, been dropped, or otherwise
damaged in any way; take it to a qualified
serviceman.

11.

Do not disassemble charger or battery
cartridge; take it to a qualified serviceman
when service or repair is required. Incor­rect reassembly may result in a risk of
electric shock or fire.

12.

To reduce risk of electric shock, unplug
charger from outlet before attempting any
maintenance or cleaning. Turning off con­trols will not reduce this risk.

6.

To reduce risk of damage to electric plug
and cord, pull by plug rather than cord
when disconnecting charger.

7.

Make sure cord is located so that it will
not be stepped on, tripped over, or other­wise subjected to damage or stress.

8.

An extension cord should not be used
unless absolutely necessary. Use of
improper extension cord could result in a
risk of fire and electric shock. If extension
cord must be used, make sure:

a.

That pins on plug of extension cord
are the same number, size, and shape
as those of plug on charger;

b.

That extension cord is properly wired
and in good electrical condition; and

c.

That wire size is at least as large as
the one specified in the table below.

13.

The battery charger is not intended for
use by young children or infirm persons
without supervision.

14.

Young children should be supervised to
ensure that they do not play with the bat­tery charger.

15.

If operating time has become excessively
shorter, stop operating immediately. It
may result in a risk of overheating, possi­ble burns and even an explosion.

16.

If electrolyte gets into your eyes, rinse
them out with clear water and seek medi­cal attention right away. It may result in
loss of your eyesight.

USC002-3

8