Bosch 1671K, 1671B Owner’s Manual

Read BeforeUsing Lire avantusage Leerantesdeusar

Operating/SafetyInstructions
Consignesdefonctionnement/s6curit6

Instruccionesdefuncionamientoyseguridad

1671

CallToll Freefor

ConsumerInformation

& ServiceLocations

ForEnglishVersion Version fran(;aiseVersi6n enespafiol

See page2 Voirpage17 Vet la p_gina32

Pour obtenirdesinformations

et lesadressesdenoscentres

deserviceapr_s-vente,

appelezce num_rogratuit

Llamegratispara

obtenerinformaci6n

para el consumidory

ubicacionesdeservicio

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

result inelectric shock, fire and/or serious injury. The term "power tool"in

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

SAVE THESEINSTRUCTIONS

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. Power
tools create sparks whichmay ignite the dust

or fumes.

Keep children and bystanders away while

operating a power tool. Distractions can
cause you to lose control.

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. Unmodified 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

conditions. 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.

Do not use AC only rated tools with a DC
power supply. While the tool may appear to

work, the electrical components of the AC

rated tool are likely to fail and create a
hazard to the operator.

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. GFCI and

personal protection devices like electrician's

rubber gloves and footwear will further

enhance your personal safety.

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. A moment of

inattention while operating power tools may

result in serious personal injury.
Use safety equipment. Always wear eye

protection. Safety equipment such as dust
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. Carrying power tools with your

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. A

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. This enables
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. Loose clothes, jewelry 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

-2-

used. Use of these devices can reduce dust-
related hazards.

Keep handles dry, clean and free from oil
and grease. Slippery hands cannot safely

control the power tool.

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 preventive safety
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. 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 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.

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.

Battery tool use and care

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

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

Recharge only with the charger specified
by the manufacturer. A charger that is

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. Use of any other

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. Liquid ejected from the

battery may cause irritation or burns.

Service

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

replacement parts. This will ensure that the

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.

SAVETHESE

INSTRUCTIONS

-3-

_Read safety warnings

all and

Cutting procedures

Keep hands away from

Keep your second hand on auxiliary handle,

or motor housing. If 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
stable platform. It is important to support the

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. Contact with a "live" wire

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. This improves accuracy

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. The blade washers and bolt

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. Dust build up

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. Wet lumber, green lumber or
pressure treated lumber require special

attention during cutting operation to prevent
kickback.

Hold the saw firmly to prevent loss of
control. Figures in this manual illustrate

typical hand support of the saw.

cutting area and blade.

all instructions.

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

fail in the "OFF" position, the saw may not
start. If it should fail while the saw is

running, the saw may not shut off. If either

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-

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.

Do not use dull or damaged blade.

Unsharpened or improperly set blades

produce narrow kerr 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 making a "Plunge

Cut" into existing walls or other blind

areas. The protruding blade may cut objects

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. The proper

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. Kickback could cause the saw to jump

backwards over your hand.

Do not use the saw with an excessive

depth of cut setting. Too much blade

exposure increases the likelihood of the blade

twisting in the kerr and increases the surface

area of the blade available for pinching that

leads to 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. Lower guard may operate

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. For all other sawing, the
lower guard should operate automatically.

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.

Do not run the tool while carrying it at your

side. Lower guard may be opened by a
contact with your clothing. Accidental

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. Preventive maintenance

and properly operating guard will reduce the

probability of an accident.

I__1 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 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.

-5-

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. Do not

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. Incorrect reassembly or

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. Battery short or fire may result.

Charge only Bosch approved rechargeable
batteries. See Functional Description and

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

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.This is important to

prevent serious damage to the battery cells.

Battery leakage may occur under extreme
usage or temperature conditions. Avoid

contact with skin and eyes. The battery

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 recom-

mended or sold by Bosch may result in a
risk of fire, electric shock or injury to

persons.

Battery Care

When batteries are not in DO NOT PUT BATTERIES INTO FIRE OR
tool or charger, keep them EXPOSE TO HIGH HEAT. They may

away from metal objects. For example, to explode.

protect terminals from shorting DO NOT place
batteries in a tool box or pocket with nails,

screws, keys, etc. Fire or injury may result.

-6-

Battery Disposal

Do not attempt to disas-

semble the battery or

remove any component projecting from

the battery terminals. Fire or injury may
result. Prior to disposal, protect exposed

terminals with heavy insulating tape to
prevent shorting.

LITHIUM-ION BATTERIES

If equipped with a lithium-ion battery, the battery
must be collected, recycled or disposed of in

an environmentally sound manner.

"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

resou rces."

-7-

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

V Volts
A Amperes

Hz Hertz

W Watt
kg Kilograms

min Minutes

S

O

nO

.../min

0

1,2,3 ....

I, II, III,

[]
@

Seconds
Diameter

No load speed
Revolutions or reciprocation per minute

Off position
Selector settings

Infinitely variable selector with off
Arrow

Alternating current
Direct current

Alternating or direct current
Class II construction

Earthing terminal
Warning symbol

Li-ion RBRC seal

@

Designation/Explanation
Voltage (potential)
Current

Frequency (cycles per second)

Power
Weight

Time
Time
Size of drill bits, grinding wheels, etc.

Rotational speed, at no load

Revolutions, strokes, surface speed,
orbits etc. per minute

Zero speed, zero torque...
Speed, torque or position settings.

Higher number means greater speed
Speed is increasing from 0 setting

Action in the direction of arrow
Type or a characteristic of current

Type or a characteristic of current
Type or a characteristic of current

Designates Double Insulated
Construction tools.

Grounding terminal
Alerts user to warning messages

Designates Li-ion battery recycling
program

that this tool is listed by

This symbol designates
Underwriters Laboratories.

that this tool is listed by
the Canadian Standards

This symbol designates
Association.

This symbol designates

0®

C11 i Underwriters Laboratories, complies

that this tool is listed to _._

Canadian Standards by

Underwriters Laboratories.

This symbol designates that that

this tool is listed by this tool

rUS and listed to Canadian to NOM

Standards by Underwriters Mexican
Laboratories. Standards.

This symbol
designates

-8-

_ 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.

Cordless Circular Saw

SAW HOOK _f _ sRUBBERIZED GRIPTo use, simply lift up hook until it

intothe open position.

snaps _ /_/'_ _ BATTERYPACK

Whennot in _,_ "/_ __ RELEASEBUTTON

use, always lower hookuntil

intothe closedposition.itsnaps e_( X'k'_/-m'_ "_" _ _

@

HANDLE BATTERYPACK

BEVELADJUSTMENT__,_//D"_ ,_ _ LIFT LEVER

KNOB IT

Iil[_lil

BATTERYCHARGED

CONDITIONINDICATOR

TRIGGER

SWITCH

LOWERGUARD

__SAFETYSWITCH

FOOT

RELEASEBUTTON

GUARD

INDICATORLIGHT

BLADEWRENCH

STORAGEAREA

DEPTHADJUSTMENT--

LEVER

VENTILATION

LOCK

BUTTON

OPENINGS ALIGNMENTSCREW

Model No. 1671

Voltage rating 36 V

No load speed no 4,000/min
Battery pack BAT818 & BAT836
Charger BC830

Charge time 1hr/45 min,

Voltage rating 120 V Q, 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.

Maximum Capacities

Blade 6-1/2"
Depth of cut at 90 ° 2-1/8"

Depth of cut at 45 ° 1-3/4"
Depth of cut at 50 ° 1-1/2"

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

-9-

Assembly

ATTACHING THE BLADE

_ isconnect battery pack

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

from tool before making

guard has marks around it that will help you
properly 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.

m

UPPER

GUARD

LOWER

BLADESHAFT--

LOWERGUARDSPRING--

INNERWASHER

LargeDiameterFacesBlade

-10-

BLADE

WRENCH

LOOSEN

OUTER

WASHER

OUTERWASHER

ge Diameter

FacesBlade

TIGHTEN

DEPTH ADJUSTMENT

Disconnect battery pack from tool. Loosen the Tighten lever at the depth setting desired.
depth adjustment lever located on the right Check desired depth (Fig. 3).

side of the tool. Hold the foot clown with one Not more than one tooth length of the blade
hand and raise or lower saw by the handle, should extend below the material to be cut, for

minimum splintering (Fig. 4).

U

CALIBRATED

BRACKET

II=[_EI

DEPTH

ADJUSTMENTLEVER

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.)

I _1[_111,1

SAFETYSWITCH

RELEASEBUTTON

ONETOOTHLENGTHSHOULD

PENETRATEWOODFOR

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).

BEVEL

ADJUSTMENT

FOOT BLADE

-11-

ALIGNMENT

SCREW

BEVELADJUSTMENT

Disconnect battery pack from tool. The foot
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.

BEVEL

ADJUSTMENT

KNOB

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.

SWITCH

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.

BRAKE
When the trigger is released it activates the
electrical brake to stop the blade quickly. This

feature is especially useful when making
repetitive cuts.

GENERAL 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.

_ lways be sure either hand
free movement of the lower guard.

does not interfere with the

90° 45° & 50°

VERTICALCUTS_ [-- BEVELCUTS

Maintain a firm grip and operate the switch

with a decisive action. Never force the saw.

Use light and continuous pressure.

_ fter completing a cut and

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.

the trigger has been

-12-

PLUNGE CUTS

Disconnect battery pack from tool before
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

and 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
GUARD

LIFT

LEVER

CUTTING LARGE SHEETS

Large sheets and long boards sag or bend,

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.

WRONG

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.

DESIRED

WIDTH
OFCUT

RIGHT

RIP BOARD GUIDE

When rip cutting large sheets, the rip fence
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.

DESIRED

LINE

OFCUT

GUIDE

-13-

BATTERY CHARGED CONDITION

INDICATOR

The battery is equipped with a charged
condition indicator.

GREEN

INDICATORLIGHTS

BUTTON RED

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.

INDICATORLIGHT

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.
When one light blinks the battery pack is

almost 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.

"ON", the charger is plugged in

} If the green indicator light is

I

inserted, or the battery pack is fully charged.

..................... BLINKING", the battery pack is

[ _1 If the green indicat°r light is
charging will automatically stop when the

battery pack is fully charged.

but the battery pack is not

being fast-charged. Fast-

[_1- ] If the red indicator light is "ON',
charger will automatically switch to fast-

charging once a suitable temperature is
reached.

...... BLINKING", the battery pack

I_ ] If the red indicator light is

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.

the battery pack is too hot or
cold for fast-charging. The

cannot accept a charge or the

-14-

IMPORTANT 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
will not fast charge the battery. (This may

happen if the battery pack is hot from hea W
use). When the battery temperature returns to

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
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:

some other electrical device.

b. Check to see if outlet is connected to a

light switch which turns power "off" when
lights are turned off.

c. Check battery pack terminals for dirt.

Clean with cotton swab and alcohol if
necessary.

d. If you still do not get proper charging,

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.

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

CHARGING BATTERY PACK (B0830 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.

)a[_li#

REDLIGHT

I

I

GREENLIGHT

BATTERY

PACK

--CHARGER

-15-