Bosch 1671 User Manual

BM 2610945718 12-06 12/12/06 12:21 PM Page 1

IMPORTANT: IMPORTANT : IMPORTANTE:

Read Before Using Lire avant usage Leer antes de usar

Operating/Safety Instructions
Consignes de fonctionnement/sécurité

Instrucciones de funcionamiento y seguridad

1671

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BM 2610945718 12-06 12/12/06 12:21 PM Page 2

General Safety Rules

R

WARNING

!

all of the warnings listed below refers to your mains-operated (corded) power tool or battery­operated (cordless) power tool.

ead all instructions. Failure to follow all instructions listed below may

result in electric shock, fire and/or serious injury.

The term “power tool” in

SAVE THESE INSTRUCTIONS

Work area safety

Keep work area clean and well lit.

Cluttered or dark areas invite accidents.

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

tools create sparks which may ignite the dust
or fumes.

Keep children and bystanders away while
operating a power tool.

cause you to lose control.

Distractions can

Power

Electrical safety

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.

and matching outlets will reduce risk of
electric shock.

Avoid body contact with earthed or
grounded surfaces such as pipes,
radiators, ranges and refrigerators.

is an increased risk of electric shock if your
body is earthed or grounded.

Do not expose power tools to rain or wet
conditions.

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.

outdoor use reduces the risk of electric
shock.

Do not use AC only rated tools with a DC
power supply.

work, the electrical components of the AC
rated tool are likely to fail and create a
hazard to the operator.

Water entering a power tool will

Use of a cord suitable for

While the tool may appear to

Unmodified plugs

There

If operating the power tool in damp
locations is unavoidable a Ground Fault
Circuit Interrupter (GFCI) must be used to
supply the power to your tool.

personal protection devices like electrician’s
rubber gloves and footwear will further
enhance your personal safety.

GFCI and

Personal safety

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 influence of
drugs, alcohol or medication.

inattention while operating power tools may
result in serious personal injury.

Use safety equipment. Always wear eye
protection.

mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate
conditions will reduce personal injuries.

Avoid accidental starting. Ensure the
switch is in the off-position before
plugging in.

finger on the switch or plugging in power
tools that have the switch on invites
accidents.

Remove any adjusting key or wrench
before turning the power tool on.

wrench or a key left 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.

better control of the power tool in unexpected
situations.

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

be caught in moving parts.

If devices are provided for the connection
of dust extraction and collection facilities,
ensure these are connected and properly

Safety equipment such as dust

Carrying power tools with your

Loose clothes, jewelry or long hair can

A moment of

This enables

A

-2-

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used. Use of these devices can reduce dust­related hazards.

Keep handles dry, clean and free from oil
and grease.

control the power tool.

Slippery hands cannot safely

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.

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.

measures reduce the risk of starting the
power tool accidentally.

Store idle power tools out of the reach of
children 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 tools operation.
If damaged, have the power tool repaired
before use.

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 and in the manner intended
for the particular type of power tool,
taking 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.

Many accidents are caused by

Any power tool

Such preventive safety

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

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

Holding the work by hand

Battery tool use and care

Ensure the switch is in the off position
before inserting battery pack.

battery pack into power tools that have the
switch on invites accidents.

Recharge only with the charger specified
by the manufacturer.

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

Use power tools only with specifically
designated battery packs.

battery packs may create a risk of injury and
fire.

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 fire.

Under abusive conditions, liquid may be
ejected from the battery, avoid contact. If
contact accidentally occurs, flush with
water. If liquid contacts eyes, additionally
seek medical help.

battery may cause irritation or burns.

Liquid ejected from the

Inserting the

A charger that is

Use of any other

Service

Have your power tool serviced by a
qualified repair person using only identical
replacement parts.

safety of the power tool is maintained.

Develop a periodic maintenance schedule
for your tool. When cleaning a tool be
careful not to disassemble any portion of
the tool since internal wires may be
misplaced or pinched or safety guard
return springs may be improperly
mounted. Certain cleaning agents such as

gasoline, carbon tetrachloride, ammonia, etc.
may damage plastic parts.

This will ensure that the

SAVE THESE INSTRUCTIONS

-3-

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Safety Rules for Circular Saws

WARNING

!

Read all safety warnings and all instructions.

Cutting procedures

!

DANGER

Keep your second hand on auxiliary handle,
or motor housing.

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.

blade teeth should be visible below the
workpiece.

NEVER hold piece being cut in your hands
or across your leg. Secure the workpiece to
stable platform.

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

Hold power tool by the insulated gripping
surfaces when performing an operation
where the cutting tool may contact hidden
wiring or it own cord.

will also make exposed metal parts of the tool
“live” and shock the operator.

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

of cut and reduces the chance for blade binding.

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

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

This product is intended to cut wood and
wood-like products only

around the lower guard and hub from other
materials (plastic, masonry or metal) may
disable the lower guard operation.

Inspect the condition and quality of the
wood and remove all nails from lumber
before cutting.

pressure treated lumber require special
attention during cutting operation to prevent
kickback.

Hold the saw firmly to prevent loss of
control.

typical hand support of the saw.

Keep hands away from
cutting area and blade.

If hands are holding the

Less than a full tooth of the

It is important to support the

Contact with a "live" wire

This improves accuracy

The blade washers and bolt

. Dust build up

Wet lumber, green lumber or

Figures in this manual illustrate

Depending upon use, the switch may not
last the life of the saw. If the switch should
f

ail in the “OFF” position, the saw may not
start. If it should fail while the saw is
running, the saw may not shut off.

occurs, unplug the saw immediately and do
not use until repaired.

This circular saw should not be mounted to
a table and converted to a table saw.

Circular saws are not designed or intended to
be used as table saws.

Kickback and related warnings

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 with both hands on the
saw and position your body and arm to
allow you 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 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 action to
eliminate the cause of blade binding.

When restarting a saw in a workpiece,
center the saw blade in the kerf and check
that saw teeth are not engaged into the

-4-

If either

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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.

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 blade.

Unsharpened 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.

cutting, it may cause binding and kickback.

Use extra caution when making a “Plunge
Cut” into existing walls or other blind
areas.

that can cause kickback.

The blade washers and the bolt on your
saw have been designed to work as a
clutch to reduce the intensity of a kickback.
Understand the operation and settings of
the VARI-TORQUE CLUTCH.

setting of the clutch, combined with firm handling
of the saw will allow you to control kickback.

Never place your hand behind the saw
blade.

backwards over your hand.

Do not use the saw with an excessive
depth of cut setting.

exposure increases the likelihood of the blade
twisting in the kerf and increases the surface
area of the blade available for pinching that
leads to kickback.

If blade adjustment shifts while

The protruding blade may cut objects

Kickback could cause the saw to jump

Large panels

The proper

Too much blade

KICKBACK

Lower guard function

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 only with the
Lower Guard Lift Lever and make sure it
moves freely and does not touch the blade or
any other part, in all angles and depths of cut.

Check the operation of the lower guard
spring. If the guard and the spring are not
operating properly, they must be serviced
before use.

sluggishly due to damaged parts, gummy
deposits, or a buildup of debris.

Lower guard should be retracted manually
only for special cuts such as “Plunge
Cuts” and “Compound Cuts”. Raise lower
guard by lower guard Lift lever and as soon
as blade enters the material, lower guard
must be released.

lower guard should operate automatically.

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

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.

Do not run the tool while carrying it at your
side. Lower guard may be opened by a
contact with your clothing.

contact with the spinning saw blade could
result in serious personal injury.

Periodically remove the blade, clean the
upper, lower guards and the hub area with
kerosene and wipe it dry, or blow it clean
with compressed air.

and properly operating guard will reduce the
probability of an accident.

WARNING

!

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 paints,

• 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 specially designed
to filter out microscopic particles.

Lower guard may operate

For all other sawing, the

An unprotected,

Accidental

Preventive maintenance

Some dust created by
power sanding, sawing,

-5-

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Battery/Charger

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

Use only the charger which accompanied
your product or direct replacement as
listed in the catalog or this manual.

substitute any other charger. Use only Bosch
approved chargers with your product. See
Functional Description and Specifications.

Do not disassemble charger or operate the
charger if it has received a sharp blow,
been dropped or otherwise damaged in
any way. Replace damaged cord or plugs
immediately.

damage may result in electric shock or fire.

Do not recharge battery in damp or wet
environment. Do not expose charger to
rain or snow. If battery case is cracked or
otherwise damaged, do not insert into
charger.

Charge only Bosch approved rechargeable
batteries.

Specifications. Other types of batteries may
burst causing personal injury and damage.

Charge battery pack in temperatures above
+40 degrees F (4 degrees C) and below
+105 degrees F (41 degrees C). Store tool
and battery pack in locations where

Battery short or fire may result.

Incorrect reassembly or

See Functional Description and

Do not

temperatures do not go below 40 degrees
F (4 degrees C) or will no exceed 120
degrees F (49 degrees C). Allow battery
pack to return to room temperature before
attempting to charge.

prevent serious damage to the battery cells.

Battery leakage may occur under extreme
usage or temperature conditions. Avoid
contact with skin and eyes.

liquid is caustic and could cause chemical
burns to tissues. If liquid comes in contact with
skin, wash quickly with soap and water, then
with lemon juice or vinegar. If the liquid
contacts your eyes, flush them with water for a
minimum of 10 minutes and seek medical
attention.

Place charger on flat non-flammable
surfaces and away from flammable
materials when re-charging battery pack.

The charger and battery pack heat during
charging. Carpeting and other heat insulating
surfaces block proper air circulation which
may cause overheating of the charger and
battery pack. If smoke or melting of the case
are observed unplug the charger immediately
and do not use the battery pack or charger.

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

This is important to

The battery

Battery Care

!

WARNING

away from metal objects.

protect terminals from shorting
batteries in a tool box or pocket with nails,
screws, keys, etc. Fire or injury may result.

When batteries are not in
tool or charger, keep them

For example, to

NOT

DO

place

DO NOT PUT BATTERIES INTO FIRE OR
EXPOSE TO HIGH HEAT.

explode.

They may

-6-

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Battery Disposal

!

WARNING

remove any component projecting from
the battery terminals.

result. Prior to disposal, protect exposed
terminals with heavy insulating tape to
prevent shorting.

If equipped with a lithium-ion battery, the battery
must be collected, recycled or disposed of in
an environmentally sound manner.

Do not attempt to disas­semble the battery or

Fire or injury may

LITHIUM-ION BATTERIES

“The EPA certified RBRC
Battery Recycling Seal on the
lithium-ion (Li-ion) battery
indicates Robert Bosch Tool
Corporation is voluntarily
participating in an industry

program to collect and recycle these batteries
at the end of their useful life, when taken out
of service in the United States or Canada. The
RBRC program provides a convenient
alterative to placing used Li-ion batteries into
the trash or the municipal waste stream, which
may be illegal in your area.

Please call 1-800-8-BATTERY for information
on Li-ion battery recycling and disposal
bans/restrictions in your area, or return your
batteries to a Skil/Bosch/Dremel Service
Center for recycling. Robert Bosch Tool
Corporation’s involvement in this program is
part of our commitment to preserving our
environment and conserving our natural
resources.”

-7-

A

0

A

A

0

A

BM 2610945718 12-06 12/12/06 12:21 PM Page 8

Symbols

IMPORTANT: Some of the following symbols may be used on your tool. Please study them

and learn their meaning. Proper interpretation of these symbols will allow you to operate the
tool better and safer.

Symbol Name Designation/Explanation

V Volts Voltage (potential)

A Amperes Current

Hz Hertz Frequency (cycles per second)

W Watt Power

kg Kilograms Weight

min

s Seconds Time

n

.../min Revolutions or reciprocation per minute Revolutions, strokes, surface speed,

0 Off position Zero speed, zero torque...

1, 2, 3, ... Selector settings Speed, torque or position settings.

I, II, III, Higher number means greater speed

Minutes Time

Diameter Size of drill bits, grinding wheels, etc.

No load speed Rotational speed, at no load

0

orbits etc. per minute

Infinitely variable selector with off Speed is increasing from 0 setting

Arrow Action in the direction of arrow

Alternating current Type or a characteristic of current

Direct current Type or a characteristic of current

Alternating or direct current Type or a characteristic of current

Class II construction Designates Double Insulated

Construction tools.

Earthing terminal Grounding terminal

Warning symbol Alerts user to warning messages

Li-ion RBRC seal Designates Li-ion battery recycling

program

This symbol designates
that this tool is listed by
Underwriters Laboratories.

This symbol designates
that this tool is listed by
the Canadian Standards
Association.

This symbol designates
that this tool is listed to
Canadian Standards by
Underwriters Laboratories.

This symbol designates that
this tool is listed by
Underwriters Laboratories,
and listed to Canadian
Standards by Underwriters
Laboratories.

This symbol

designates
that
this tool
complies
to NOM
Mexican
Standards.

-8-

BM 2610945718 12-06 12/12/06 12:21 PM Page 9

Functional Description and Specifications

D

!

WARNING

isconnect battery pack from tool before making any assembly,

adjustments or changing accessories

reduce the risk of starting the tool accidentally.

Cordless Circular Saw

To use, simply lift up hook until it

When not in use, always lower hook until

it snaps into the closed position.

SAW HOOK

snaps into the open position.

AUXILIARY

HANDLE

CALIBRATED BEVEL

QUADRANT

BEVEL ADJUSTMENT

KNOB

. Such preventive safety measures

RUBBERIZED GRIP

BATTERY PACK

RELEASE BUTTON

BATTERY PACK

LOWER GUARD

LIFT LEVER

FOOT

LOWER GUARD

FIG. 1

TRIGGER

BUTTON

BATTERY CHARGED

CONDITION INDICATOR

TEMPERATURE

INDICATOR LIGHT

BLADE WRENCH &

STORAGE AREA

DEPTH ADJUSTMENT

LEVER

Model No. 1671
Voltage rating 36 V
No load speed n

Battery pack BAT818 & BAT836

Charger BC830

Charge time 1 hr/45 min.
Voltage rating 120 V 60 Hz

For replacement blades we recommend Bosch Cordless Circular saw blades. Their thin kerf and
tooth design deliver the best speed, quality of cut, and reduce battery drain. Use of standard blades
will substantially affect the performance and reduce run-time.

4,000/min

0

SWITCH

VENTILATION

OPENINGS

SAFETY SWITCH

RELEASE BUTTON

UPPER GUARD

LOCK

BUTTON

ALIGNMENT SCREW

Maximum Capacities

Blade
Depth of cut at 90
Depth of cut at 45
Depth of cut at 50

ATTENTION: Use only thin kerf blades
designed for Cordless Circular Saws.

°
°
°

6-1/2"
2-1/8"
1-3/4"
1-1/2"

-9-

BM 2610945718 12-06 12/12/06 12:21 PM Page 10

Assembly

ATTACHING THE BLADE

D

!

WARNING

isconnect battery pack

from tool before making
any assembly, adjustments or changing
accessories

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

1. Turn BLADE STUD with wrench provided
clockwise and remove BLADE STUD and
OUTER WASHER (Fig. 2). If the shaft moves
while attempting to loosen the blade stud
press the lock button (Fig. 1).

2. Retract the lower guard all the way up into
the upper guard. While retracting the lower
guard, check operation and condition of the
LOWER GUARD SPRING.

3. Make sure the saw teeth and arrow on the
blade point in the same direction as the arrow
on the lower guard.

4. Slide blade through slot in the foot and
mount it against the INNER WASHER on the
shaft. Be sure the large diameter of the
OUTER washer lays flush against the blade.

5. Reinstall OUTER WASHER and tighten
BLADE STUD finger tight. The face of upper

guard has marks around it that will help you
p

roperly adjust the blade stud. Press lock
button to lock shaft and TIGHTEN BLADE
STUD COUNTER-CLOCKWISE THREE
MARKS ON UPPER GUARD WITH THE
WRENCH PROVIDED.

Do not use wrenches with longer handles,
since it may lead to over tightening of the
blade stud.

VARI-TORQUE CLUTCH

This clutching action is provided by the friction
of the OUTER WASHER against the BLADE
and permits the blade shaft to turn when the
blade encounters excessive resistance. When
the BLADE STUD is properly tightened (as
described in No. 5 of Attaching The Blade), the
blade will slip when it encounters excessive
resistance, thus reducing saw’s tendency to
KICKBACK.

One setting may not be sufficient for cutting all
materials. If excessive blade slippage occurs,
tighten the blade stud one mark more.
OVERTIGHTENING THE BLADE STUD
NULLIFIES THE EFFECTIVE-NESS OF THE
CLUTCH.

FIG. 2

UPPER

GUARD

LOWER GUARD

BLADE SHAFT

LOWER GUARD SPRING

INNER WASHER

Large Diameter Faces Blade

-10-

BLADE

WRENCH

LOOSEN

MARK

OUTER

WASHER

OUTER WASHER

Large Diameter

Faces Blade

BLADE STUD

TIGHTEN

2x

BM 2610945718 12-06 12/12/06 12:21 PM Page 11

Operating Instructions

DEPTH ADJUSTMENT

Disconnect battery pack from tool. Loosen the
depth adjustment lever located on the right
side of the tool. Hold the foot down with one
hand and raise or lower saw by the handle.

FIG. 3

CALIBRATED

DEPTH

BRACKET

Tighten lever at the depth setting desired.
Check desired depth (Fig. 3).

Not more than one tooth length of the blade
should extend below the material to be cut, for
minimum splintering (Fig. 4).

FIG. 4

DEPTH

ADJUSTMENT LEVER

SAFETY SWITCH

The safety switch is designed to prevent
accidental starts. To operate safety switch,
press the release button with your thumb on
either side of handle to disengage the lock,
then pull the trigger (Fig. 5). When the trigger
is released the button will engage the safety
switch automatically, and the trigger will no
longer operate. (See Switch & General Cuts
on page 12.)

FIG. 5

SAFETY SWITCH

RELEASE BUTTON

TRIGGER

ONE TOOTH LENGTH SHOULD

PENETRATE WOOD FOR

MINIMUM SPLINTERING

90° CUTTING ANGLE CHECK

Disconnect battery pack from tool. Set foot to
maximum depth of cut setting. Loosen bevel
adjustment lever, set to 0° on quadrant,
retighten lever and check for 90° angle
between the blade and bottom plane of foot
with a square (Fig. 6). Make adjustments by
turning the small alignment screw from bottom
side of foot, if necessary (Fig. 7).

FIG. 6

BEVEL

ADJUSTMENT

KNOB

FIG. 7

-11-

FOOT

BLADE

ALIGNMENT

SCREW

BM 2610945718 12-06 12/12/06 12:21 PM Page 12

Disconnect battery pack from tool. The foot

BEVEL ADJUSTMENT

can be adjusted up to 50° by loosening the
bevel adjustment knob at the front of the saw.
Align to desired angle on calibrated quadrant.
Then tighten bevel adjustment knob (Fig. 8).

Because of the increased amount of blade
engagement in the work and decreased
stability of the foot, blade binding may occur.
Keep the saw steady and the foot firmly on the
workpiece.

LINE GUIDE

For a straight 90° cut, use left side of notch in
the foot. For 45° & 50° bevel cuts, use the right
side (Fig. 9). The cutting guide notch will give
an approximate line of cut. Make sample cuts in
scrap lumber to verify actual line of cut. This will
be helpful because of the number of different
blade types and thicknesses available. To
ensure minimum splintering on the good side of
the material to be cut, face the good side down.

FIG. 8

QUADRANT

90°

VERTICAL CUTS

45° & 50°

BEVEL CUTS

BEVEL

ADJUSTMENT

KNOB

FIG. 9

To turn tool “ON”, squeeze the trigger switch.
To turn the tool “OFF”, release the trigger
switch, which is spring loaded and will return
to the off position automatically.

Your saw should be running at full speed
BEFORE starting the cut, and turned off only
AFTER completing the cut. To increase switch
life, do not turn switch on and off while cutting.

When the trigger is released it activates the
electrical brake to stop the blade quickly. This
feature is especially useful when making
repetitive cuts.

Always hold the saw handle with one hand
and the auxiliary handle or housing with the
other.

Always make sure saw foot rests on portion of
work surface that does not drop off.

!

WARNING

free movement of the lower guard.

SWITCH

BRAKE

GENERAL CUTS

Always be sure either hand
does not interfere with the

Maintain a firm grip and operate the switch
with a decisive action. Never force the saw.
Use light and continuous pressure.

!

WARNING

released, be aware of the necessary time it
takes for the blade to come to a complete
stop during coast down. Do not allow the
saw to brush against your leg or side,
since the lower guard is retractable, it
could catch on your clothing and expose
the blade. Be aware of the necessary blade
exposures that exist in both the upper and
lower guard areas.

When cutting is interrupted, to resume cutting:
squeeze the trigger and allow the blade to
reach full speed, re-enter the cut slowly and
resume cutting.

When cutting across the grain, the fibers of
the wood have a tendency to tear and lift.
Advancing the saw slowly minimizes this
effect. For a finished cut, a cross cut blade or
miter blade is recommended.

After completing a cut and
the trigger has been

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BM 2610945718 12-06 12/12/06 12:21 PM Page 13

Disconnect battery pack from tool before

PLUNGE CUTS

making adjustments. Set depth adjustment
according to material to be cut. Tilt saw
forward with cutting guide notch lined up with
the line you’ve drawn. Raise the lower guard,
using lift lever and hold the saw by the front
a

nd rear handles (Fig. 10).

With the blade just clearing the material to be
cut, start the motor. Gradually lower the back
end of saw using the front end of the foot as
the hinge point.

WARNING: As blade starts
cutting the material, release the lower
guard immediately.

When the foot rests flat
on the surface being cut, proceed cutting in
forward direction to end of cut.

WARNING:
Allow blade to come to a complete stop
before lifting the saw from cut. Also, never
pull the saw backward since blade will
climb out of the material and KICKBACK
will occur.

Turn saw around and finish the cut
in the normal manner, sawing forward. If
corners of your pocket cut are not completely
cut through, use a jigsaw or hand saw to finish
the corners.

LOWER

FIG. 10

GUARD

LIFT

LEVER

Large sheets and long boards sag or bend,

CUTTING LARGE SHEETS

depending on support. If you attempt to cut
without leveling and properly supporting the
piece, the blade will tend to bind, causing
KICK-BACK and extra load on the motor (Fig. 11).

Support the panel or board close to the cut, as
shown in (Fig. 12). Be sure to set the depth of
the cut so that you cut through the sheet or
board only and not the table or work bench.
The two-by-fours used to raise and support
the work should be positioned so that the
broadest sides support the work and rest on
the table or bench. Do not support the work
with the narrow sides as this is an unsteady
arrangement. If the sheet or board to be cut is
too large for a table or work bench, use the
supporting two-by-fours on the floor and
secure.

FIG. 11

WRONG

FOOT

RIP CUTS

The combination blade provided with your saw
is for both cross cuts and rip cuts. Ripping is
cutting lengthwise with the grain of the wood.
Rip cuts are easy to do with a rip fence
(Fig. 13). To attach fence, insert fence through
slots in foot to desired width as shown and
secure with the knob.

FIG. 13

DESIRED

WIDTH
OF CUT

KNOB

RIP FENCE

When rip cutting large sheets, the rip fence

RIP BOARD GUIDE

may not allow the desired width of cut. Clamp
or nail a straight piece of 1" (25 mm) lumber to
the sheet as a guide (Fig. 14). Use the right
side of the foot against the board guide.

FIG. 14

RIP BOARD

GUIDE

DESIRED

LINE

OF CUT

-13-

FIG. 12

RIGHT

BM 2610945718 12-06 12/12/06 12:21 PM Page 14

BATTERY CHARGED CONDITION

INDICATOR

The battery is equipped with a charged
condition indicator.

GREEN

INDICATOR LIGHTS

BUTTON

RED

INDICATOR LIGHT

By pressing the button ON, the charged
condition can be checked when the battery is
removed or when the machine is not in use.
After approx. 5 seconds, the charged indicator
switches off automatically.

• • • When all three lights are illuminated, this
indicates the battery pack is between 67% and
100% charged.

• • When only two lights illuminate, this
indicates the battery pack is between 33% and
66% charged.

INSERTING AND RELEASING BATTERY PACK

Slide charged battery pack into the housing
until the battery pack locks into position and
the red warning label is no longer visible (Fig. 1).

Your battery pack is equipped with a
secondary locking latch to prevent the battery
pack from completely falling out of the handle,
should it become loose due to vibration.

• When only one light illuminates, this
indicates the battery pack is less than 33%
charged.

W

hen one light blinks the battery pack is

a

lmost fully discharged.

TEMPERATURE INDICATOR LIGHT

The red indicator light signals whether the
battery or tool (with battery inserted) is in the
optimum temperature range. When the
temperature is too high, the tool will not
operate at full capacity.

If the red indicator light illuminates
continuously when the battery is inserted into
the charger. The battery is outside the
charging temperature range and cannot be
charged.

If the red indicator light blinks when the
button or on/off switch (with battery inserted)
is pressed, the battery is outside the
operating range of -10 ˚C to +60 ˚C.

When the temperature is above 70 ˚C the
battery turns off until it’s in the optimum
temperature range.

To remove the battery pack, press the battery
pack release button and slide the battery pack
away from housing. The red warning label will
become partially visible. Press the battery
pack release button again and slide the battery
pack completely out of tool housing.

CHARGER INDICATORS, SYMBOLS AND MEANING

If the indicator lights are “OFF”, the charger
is not receiving power from power supply
outlet.

If the green indicator light is
“ON”, the charger is plugged in
but the battery pack is not

inserted, or the battery pack is fully charged.

If the green indicator light is
“BLINKING”, the battery pack is

being fast-charged. Fast­charging will automatically stop when the
battery pack is fully charged.

If the red indicator light is “ON”,
the battery pack is too hot or

cold for fast-charging. The
charger will automatically switch to fast­charging once a suitable temperature is
reached.

If the red indicator light is
“BLINKING”, the battery pack

cannot accept a charge or the
contacts of the charger or battery pack are
contaminated. Clean the contacts of the
charger or battery pack only as directed in
these operating instructions or those supplied
with your tool or battery pack.

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BM 2610945718 12-06 12/12/06 12:21 PM Page 15

I

MPORTANT CHARGING NOTES

1. The charger was designed to fast charge

a. Check for voltage at outlet by plugging in
the battery only when the battery temperature
is between 32˚F (0˚C) and 140˚F (60˚C). If the
battery pack is too hot or too cold, the charger

b. Check to see if outlet is connected to a

will not fast charge the battery. (This may
happen if the battery pack is hot from heavy
use). When the battery temperature returns to

c. Check battery pack terminals for dirt.

between 32˚F (0˚C) and 140˚F (60˚C), the
charger will automatically begin charging.

2. A substantial drop in operating time per charge

d. If you still do not get proper charging,

may mean that the battery pack is nearing the
end of its life and should be replaced.

3. Remember to unplug charger during storage
period.

4. If battery does not charge properly:

Note: Use of chargers or battery packs not
sold by Bosch will void the warranty.

CHARGING BATTERY PACK (BC830 1 HOUR CHARGER)

Plug charger cord into your standard power
outlet, then insert battery pack into charger
(Fig. 15).

The charger’s green indicator light will begin to
“BLINK”. This indicates that the battery is
receiving a fast charge. Fast-charging will
automatically stop when the battery pack is
fully charged.

When the unit beeps and the indicator light
stops “BLINKING” (and becomes a steady
green light) fast charging is complete.

The battery pack may be used even though
the light may still be blinking. The light may
require more time to stop blinking depending
on temperature. When you begin the charging
process of the battery pack, a steady red light

could also mean the battery pack is too hot or
too cold.

The purpose of the green light is to indicate
that the battery pack is fast-charging. It does
not indicate the exact point of full charge. The
light will stop blinking in less time if the battery
pack was not completely discharged.

When needed, the internal fan of the charger
will turn on to aid the charging process and
speed.

When charging several batteries in sequence,
the charge time may slightly increase.

When the battery pack is fully charged, unplug
the charger (unless you're charging another
battery pack) and slip the battery pack back
into the tool.

FIG. 15

some other electrical device.

light switch which turns power “off” when
lights are turned off.

Clean with cotton swab and alcohol if
necessary.

take or send tool, battery pack and
charger to your local Bosch Service
Center. See “Tools, Electric” in the
Yellow Pages for names and addresses.

RED LIGHT

GREEN LIGHT

BATTERY

PACK

CHARGER

-15-